For centuries, misconceptions about the female anatomy have resulted in social policies and attitudes concerning: Question 4 options: The kinds of activities women could engage in The ability for women to hold jobs The sources of mental illness in women All of the above

For centuries, misconceptions about the female anatomy have resulted in social policies and attitudes concerning: Question 4 options: The kinds of activities women could engage in The ability for women to hold jobs The sources of mental illness in women All of the above

For centuries, misconceptions about the female anatomy have resulted in … Read More...
EGR 140 Scientific Programming Assignment # 7 Spring 2017 Use MATLAB to solve each problem by writing script files; copy and paste the script file AND the results in the Command Window and/or plot in the Figure Window to a WORD document that has your name and section in the headers of each page and the page number in each footer. Edit the output to remove extra lines and empty spaces. The script files SHOULD have comments for easy readability; take a print out of the Word file and staple before submission. Due by 3 PM on April 11, 2017. Write a used-defined function that calculates the average and the standard deviation of a list of numbers. Use the function to calculate the average and the standard deviation of the following list of grades: 80 75 91 60 79 89 65 80 95 50 81 Note: The average x_ave (or mean) of a given set of n number x_1,x_2,…..,x_n is given by: x_ave=(x_1+x_2+x_3+⋯+x_n)/n The standard deviation is given by: σ=√((∑_(i=1)^(i=n)▒(x_i-x_ave )^2 )/(n-1)) DO not use built-in functions to calculate the mean and the standard deviation. Write a user-defined function that arranges the digits of a given (positive) number in a row vector in the same order as they appear in the number; the function should also arrange the digits in the decimal part in a different vector. For example, if the number is 2645.12, the vectors should be [2 6 4 5] and [1 2]. The whole number can be from 0 to 10 digits long and the decimal part 0 to 6. Check the validity of the function using a few numbers of your choice. A fenced enclosure consists of a rectangle of length L and width 2R, and a semicircle of radius R, as shown in Figure. The enclosure is to be built to have an area A of 1600 ft2. The cost of the fence is $40 per foot for the curved portion, and $30 per foot for the straight sides. Determine the values of R and L required to minimize the total cost of the fence and the minimum cost using calculus approach. A water tank consists of a cylindrical part of radius r and height h, and a hemispherical top. The tank is to be constructed to hold 500 meter3 of fluid when filled. The cost to construct the cylindrical part of the tank is $300 per square meter of the surface area; the hemispherical part costs $400 per square meter. Determine the radius that results in the least cost and compute the corresponding height and the cost using graphical approach. Verify your results using the calculus approach. A ceramic tile has the design shown in the figure. The shaded area is painted black and the rest of the tile is white. The border line between the red and the white areas follows the equation: y=Asin(x) Determine A such that the area of the white and black colors will be the same.

EGR 140 Scientific Programming Assignment # 7 Spring 2017 Use MATLAB to solve each problem by writing script files; copy and paste the script file AND the results in the Command Window and/or plot in the Figure Window to a WORD document that has your name and section in the headers of each page and the page number in each footer. Edit the output to remove extra lines and empty spaces. The script files SHOULD have comments for easy readability; take a print out of the Word file and staple before submission. Due by 3 PM on April 11, 2017. Write a used-defined function that calculates the average and the standard deviation of a list of numbers. Use the function to calculate the average and the standard deviation of the following list of grades: 80 75 91 60 79 89 65 80 95 50 81 Note: The average x_ave (or mean) of a given set of n number x_1,x_2,…..,x_n is given by: x_ave=(x_1+x_2+x_3+⋯+x_n)/n The standard deviation is given by: σ=√((∑_(i=1)^(i=n)▒(x_i-x_ave )^2 )/(n-1)) DO not use built-in functions to calculate the mean and the standard deviation. Write a user-defined function that arranges the digits of a given (positive) number in a row vector in the same order as they appear in the number; the function should also arrange the digits in the decimal part in a different vector. For example, if the number is 2645.12, the vectors should be [2 6 4 5] and [1 2]. The whole number can be from 0 to 10 digits long and the decimal part 0 to 6. Check the validity of the function using a few numbers of your choice. A fenced enclosure consists of a rectangle of length L and width 2R, and a semicircle of radius R, as shown in Figure. The enclosure is to be built to have an area A of 1600 ft2. The cost of the fence is $40 per foot for the curved portion, and $30 per foot for the straight sides. Determine the values of R and L required to minimize the total cost of the fence and the minimum cost using calculus approach. A water tank consists of a cylindrical part of radius r and height h, and a hemispherical top. The tank is to be constructed to hold 500 meter3 of fluid when filled. The cost to construct the cylindrical part of the tank is $300 per square meter of the surface area; the hemispherical part costs $400 per square meter. Determine the radius that results in the least cost and compute the corresponding height and the cost using graphical approach. Verify your results using the calculus approach. A ceramic tile has the design shown in the figure. The shaded area is painted black and the rest of the tile is white. The border line between the red and the white areas follows the equation: y=Asin(x) Determine A such that the area of the white and black colors will be the same.

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Chapter 15 Practice Problems (Practice – no credit) Due: 11:59pm on Friday, May 16, 2014 You will receive no credit for items you complete after the assignment is due. Grading Policy Fluid Pressure in a U-Tube A U-tube is filled with water, and the two arms are capped. The tube is cylindrical, and the right arm has twice the radius of the left arm. The caps have negligible mass, are watertight, and can freely slide up and down the tube. Part A A one-inch depth of sand is poured onto the cap on each arm. After the caps have moved (if necessary) to reestablish equilibrium, is the right cap higher, lower, or the same height as the left cap? You did not open hints for this part. ANSWER: Part B This question will be shown after you complete previous question(s). Part C This question will be shown after you complete previous question(s). Part D This question will be shown after you complete previous question(s). Pressure in the Ocean The pressure at 10 below the surface of the ocean is about 2.00×105 . Part A higher lower the same height m Pa Which of the following statements is true? You did not open hints for this part. ANSWER: Part B Now consider the pressure 20 below the surface of the ocean. Which of the following statements is true? You did not open hints for this part. ANSWER: Relating Pressure and Height in a Container Learning Goal: To understand the derivation of the law relating height and pressure in a container. The weight of a column of seawater 1 in cross section and 10 high is about 2.00×105 . The weight of a column of seawater 1 in cross section and 10 high plus the weight of a column of air with the same cross section extending up to the top of the atmosphere is about 2.00×105 . The weight of 1 of seawater at 10 below the surface of the ocean is about 2.00×105 . The density of seawater is about 2.00×105 times the density of air at sea level. m2 m N m2 m N m3 m N m The pressure is twice that at a depth of 10 . The pressure is the same as that at a depth of 10 . The pressure is equal to that at a depth of 10 plus the weight per 1 cross sectional area of a column of seawater 10 high. The pressure is equal to the weight per 1 cross sectional area of a column of seawater 20 high. m m m m2 m m2 m In this problem, you will derive the law relating pressure to height in a container by analyzing a particular system. A container of uniform cross-sectional area is filled with liquid of uniform density . Consider a thin horizontal layer of liquid (thickness ) at a height as measured from the bottom of the container. Let the pressure exerted upward on the bottom of the layer be and the pressure exerted downward on the top be . Assume throughout the problem that the system is in equilibrium (the container has not been recently shaken or moved, etc.). Part A What is , the magnitude of the force exerted upward on the bottom of the liquid? You did not open hints for this part. ANSWER: Part B What is , the magnitude of the force exerted downward on the top of the liquid? A  dy y p p + dp Fup Fup = Fdown You did not open hints for this part. ANSWER: Part C What is the weight of the thin layer of liquid? Express your answer in terms of quantities given in the problem introduction and , the magnitude of the acceleration due to gravity. You did not open hints for this part. ANSWER: Part D Since the liquid is in equilibrium, the net force on the thin layer of liquid is zero. Complete the force equation for the sum of the vertical forces acting on the liquid layer described in the problem introduction. Express your answer in terms of quantities given in the problem introduction and taking upward forces to be positive. You did not open hints for this part. ANSWER: Fdown = wlayer g wlayer = Part E This question will be shown after you complete previous question(s). Part F This question will be shown after you complete previous question(s). A Submerged Ball A ball of mass and volume is lowered on a string into a fluid of density . Assume that the object would sink to the bottom if it were not supported by the string. Part A  = = i Fy,i mb V f What is the tension in the string when the ball is fully submerged but not touching the bottom, as shown in the figure? Express your answer in terms of any or all of the given quantities and , the magnitude of the acceleration due to gravity. You did not open hints for this part. ANSWER: Archimedes’ Principle Learning Goal: To understand the applications of Archimedes’ principle. Archimedes’ principle is a powerful tool for solving many problems involving equilibrium in fluids. It states the following: When a body is partially or completely submerged in a fluid (either a liquid or a gas), the fluid exerts an upward force on the body equal to the weight of the fluid displaced by the body. As a result of the upward Archimedes force (often called the buoyant force), some objects may float in a fluid, and all of them appear to weigh less. This is the familiar phenomenon of buoyancy. Quantitatively, the buoyant force can be found as , where is the force, is the density of the fluid, is the magnitude of the acceleration due to gravity, and is the volume of the displaced fluid. In this problem, you will be asked several qualitative questions that should help you develop a feel for Archimedes’ principle. An object is placed in a fluid and then released. Assume that the object either floats to the surface (settling so that the object is partly above and partly below the fluid surface) or sinks to the bottom. (Note that for Parts A through D, you should assume that the object has settled in equilibrium.) Part A Consider the following statement: The magnitude of the buoyant force is equal to the weight of fluid displaced by the object. Under what circumstances is this statement true? T g T = Fbuoyant = fluidgV Fbuoyant fluid g V You did not open hints for this part. ANSWER: Part B Consider the following statement: The magnitude of the buoyant force is equal to the weight of the amount of fluid that has the same total volume as the object. Under what circumstances is this statement true? You did not open hints for this part. ANSWER: Part C Consider the following statement: The magnitude of the buoyant force equals the weight of the object. Under what circumstances is this statement true? for every object submerged partially or completely in a fluid only for an object that floats only for an object that sinks for no object submerged in a fluid for an object that is partially submerged in a fluid only for an object that floats for an object completely submerged in a fluid for no object partially or completely submerged in a fluid You did not open hints for this part. ANSWER: Part D Consider the following statement: The magnitude of the buoyant force is less than the weight of the object. Under what circumstances is this statement true? ANSWER: Now apply what you know to some more complicated situations. Part E An object is floating in equilibrium on the surface of a liquid. The object is then removed and placed in another container, filled with a denser liquid. What would you observe? You did not open hints for this part. ANSWER: for every object submerged partially or completely in a fluid for an object that floats only for an object that sinks for no object submerged in a fluid for every object submerged partially or completely in a fluid for an object that floats for an object that sinks for no object submerged in a fluid Part F An object is floating in equilibrium on the surface of a liquid. The object is then removed and placed in another container, filled with a less dense liquid. What would you observe? You did not open hints for this part. ANSWER: Part G Two objects, T and B, have identical size and shape and have uniform density. They are carefully placed in a container filled with a liquid. Both objects float in equilibrium. Less of object T is submerged than of object B, which floats, fully submerged, closer to the bottom of the container. Which of the following statements is true? ANSWER: The object would sink all the way to the bottom. The object would float submerged more deeply than in the first container. The object would float submerged less deeply than in the first container. More than one of these outcomes is possible. The object would sink all the way to the bottom. The object would float submerged more deeply than in the first container. The object would float submerged less deeply than in the first container. More than one of these outcomes is possible. Object T has a greater density than object B. Object B has a greater density than object T. Both objects have the same density. ± Buoyant Force Conceptual Question A rectangular wooden block of weight floats with exactly one-half of its volume below the waterline. Part A What is the buoyant force acting on the block? You did not open hints for this part. ANSWER: Part B W The buoyant force cannot be determined. 2W W 1 W 2 The density of water is 1.00 . What is the density of the block? You did not open hints for this part. ANSWER: Part C This question will be shown after you complete previous question(s). Part D This question will be shown after you complete previous question(s). Part E This question will be shown after you complete previous question(s). g/cm3 2.00 between 1.00 and 2.00 1.00 between 0.50 and 1.00 0.50 The density cannot be determined. g/cm3 g/cm3 g/cm3 g/cm3 g/cm3 Flow Velocity of Blood Conceptual Question Arteriosclerotic plaques forming on the inner walls of arteries can decrease the effective cross-sectional area of an artery. Even small changes in the effective area of an artery can lead to very large changes in the blood pressure in the artery and possibly to the collapse of the blood vessel. Imagine a healthy artery, with blood flow velocity of and mass per unit volume of . The kinetic energy per unit volume of blood is given by Imagine that plaque has narrowed an artery to one-fifth of its normal cross-sectional area (an 80% blockage). Part A Compared to normal blood flow velocity, , what is the velocity of blood as it passes through this blockage? You did not open hints for this part. ANSWER: Part B This question will be shown after you complete previous question(s). Part C v0 = 0.14 m/s  = 1050 kg/m3 K0 =  . 1 2 v20 v0 80v0 20v0 5v0 v0/5 This question will be shown after you complete previous question(s). For parts D – F imagine that plaque has grown to a 90% blockage. Part D This question will be shown after you complete previous question(s). Part E This question will be shown after you complete previous question(s). Part F This question will be shown after you complete previous question(s). ± Playing with a Water Hose Two children, Ferdinand and Isabella, are playing with a water hose on a sunny summer day. Isabella is holding the hose in her hand 1.0 meters above the ground and is trying to spray Ferdinand, who is standing 10.0 meters away. Part A Will Isabella be able to spray Ferdinand if the water is flowing out of the hose at a constant speed of 3.5 meters per second? Assume that the hose is pointed parallel to the ground and take the magnitude of the acceleration due to gravity to be 9.81 meters per second, per second. You did not open hints for this part. v0 g ANSWER: Part B This question will be shown after you complete previous question(s). Tactics Box 15.2 Finding Whether an Object Floats or Sinks Learning Goal: To practice Tactics Box 15.2 Finding whether an object floats or sinks. If you hold an object underwater and then release it, it can float to the surface, sink, or remain “hanging” in the water, depending on whether the fluid density is larger than, smaller than, or equal to the object’s average density . These conditions are summarized in this Tactics Box. Yes No f avg TACTICS BOX 15.2 Finding whether an object floats or sinks Object sinks Object floats Object has neutral buoyancy An object sinks if it weighs more than the fluid it displaces, that is, if its average density is greater than the density of the fluid: . An object floats on the surface if it weighs less than the fluid it displaces, that is, if its average density is less than the density of the fluid: . An object hangs motionless in the fluid if it weighs exactly the same as the fluid it displaces. It has neutral buoyancy if its average density equals the density of the fluid: . Part A Ice at 0.0 has a density of 917 . A 3.00 ice cube is gently released inside a small container filled with oil and is observed to be neutrally buoyant. What is the density of the oil, ? Express your answer in kilograms per meter cubed to three significant figures. ANSWER: Part B Once the ice cube melts, what happens to the liquid water that it produces? You did not open hints for this part. ANSWER: avg > f avg < f avg = f 'C kg/m3 cm3 oil oil = kg/m3 Part C What happens if some ethyl alcohol of density 790 is poured into the container after the ice cube has melted? ANSWER: Score Summary: Your score on this assignment is 0%. You received 0 out of a possible total of 0 points. The liquid water sinks to the bottom of the container. The liquid water rises to the surface and floats on top of the oil. The liquid water is in static equilibrium at the location where the ice cube was originally placed. kg/m3 A layer of ethyl alcohol forms between the oil and the water. The layer of ethyl alcohol forms at the bottom of the container. The layer of ethyl alcohol forms on the surface.

Chapter 15 Practice Problems (Practice – no credit) Due: 11:59pm on Friday, May 16, 2014 You will receive no credit for items you complete after the assignment is due. Grading Policy Fluid Pressure in a U-Tube A U-tube is filled with water, and the two arms are capped. The tube is cylindrical, and the right arm has twice the radius of the left arm. The caps have negligible mass, are watertight, and can freely slide up and down the tube. Part A A one-inch depth of sand is poured onto the cap on each arm. After the caps have moved (if necessary) to reestablish equilibrium, is the right cap higher, lower, or the same height as the left cap? You did not open hints for this part. ANSWER: Part B This question will be shown after you complete previous question(s). Part C This question will be shown after you complete previous question(s). Part D This question will be shown after you complete previous question(s). Pressure in the Ocean The pressure at 10 below the surface of the ocean is about 2.00×105 . Part A higher lower the same height m Pa Which of the following statements is true? You did not open hints for this part. ANSWER: Part B Now consider the pressure 20 below the surface of the ocean. Which of the following statements is true? You did not open hints for this part. ANSWER: Relating Pressure and Height in a Container Learning Goal: To understand the derivation of the law relating height and pressure in a container. The weight of a column of seawater 1 in cross section and 10 high is about 2.00×105 . The weight of a column of seawater 1 in cross section and 10 high plus the weight of a column of air with the same cross section extending up to the top of the atmosphere is about 2.00×105 . The weight of 1 of seawater at 10 below the surface of the ocean is about 2.00×105 . The density of seawater is about 2.00×105 times the density of air at sea level. m2 m N m2 m N m3 m N m The pressure is twice that at a depth of 10 . The pressure is the same as that at a depth of 10 . The pressure is equal to that at a depth of 10 plus the weight per 1 cross sectional area of a column of seawater 10 high. The pressure is equal to the weight per 1 cross sectional area of a column of seawater 20 high. m m m m2 m m2 m In this problem, you will derive the law relating pressure to height in a container by analyzing a particular system. A container of uniform cross-sectional area is filled with liquid of uniform density . Consider a thin horizontal layer of liquid (thickness ) at a height as measured from the bottom of the container. Let the pressure exerted upward on the bottom of the layer be and the pressure exerted downward on the top be . Assume throughout the problem that the system is in equilibrium (the container has not been recently shaken or moved, etc.). Part A What is , the magnitude of the force exerted upward on the bottom of the liquid? You did not open hints for this part. ANSWER: Part B What is , the magnitude of the force exerted downward on the top of the liquid? A  dy y p p + dp Fup Fup = Fdown You did not open hints for this part. ANSWER: Part C What is the weight of the thin layer of liquid? Express your answer in terms of quantities given in the problem introduction and , the magnitude of the acceleration due to gravity. You did not open hints for this part. ANSWER: Part D Since the liquid is in equilibrium, the net force on the thin layer of liquid is zero. Complete the force equation for the sum of the vertical forces acting on the liquid layer described in the problem introduction. Express your answer in terms of quantities given in the problem introduction and taking upward forces to be positive. You did not open hints for this part. ANSWER: Fdown = wlayer g wlayer = Part E This question will be shown after you complete previous question(s). Part F This question will be shown after you complete previous question(s). A Submerged Ball A ball of mass and volume is lowered on a string into a fluid of density . Assume that the object would sink to the bottom if it were not supported by the string. Part A  = = i Fy,i mb V f What is the tension in the string when the ball is fully submerged but not touching the bottom, as shown in the figure? Express your answer in terms of any or all of the given quantities and , the magnitude of the acceleration due to gravity. You did not open hints for this part. ANSWER: Archimedes’ Principle Learning Goal: To understand the applications of Archimedes’ principle. Archimedes’ principle is a powerful tool for solving many problems involving equilibrium in fluids. It states the following: When a body is partially or completely submerged in a fluid (either a liquid or a gas), the fluid exerts an upward force on the body equal to the weight of the fluid displaced by the body. As a result of the upward Archimedes force (often called the buoyant force), some objects may float in a fluid, and all of them appear to weigh less. This is the familiar phenomenon of buoyancy. Quantitatively, the buoyant force can be found as , where is the force, is the density of the fluid, is the magnitude of the acceleration due to gravity, and is the volume of the displaced fluid. In this problem, you will be asked several qualitative questions that should help you develop a feel for Archimedes’ principle. An object is placed in a fluid and then released. Assume that the object either floats to the surface (settling so that the object is partly above and partly below the fluid surface) or sinks to the bottom. (Note that for Parts A through D, you should assume that the object has settled in equilibrium.) Part A Consider the following statement: The magnitude of the buoyant force is equal to the weight of fluid displaced by the object. Under what circumstances is this statement true? T g T = Fbuoyant = fluidgV Fbuoyant fluid g V You did not open hints for this part. ANSWER: Part B Consider the following statement: The magnitude of the buoyant force is equal to the weight of the amount of fluid that has the same total volume as the object. Under what circumstances is this statement true? You did not open hints for this part. ANSWER: Part C Consider the following statement: The magnitude of the buoyant force equals the weight of the object. Under what circumstances is this statement true? for every object submerged partially or completely in a fluid only for an object that floats only for an object that sinks for no object submerged in a fluid for an object that is partially submerged in a fluid only for an object that floats for an object completely submerged in a fluid for no object partially or completely submerged in a fluid You did not open hints for this part. ANSWER: Part D Consider the following statement: The magnitude of the buoyant force is less than the weight of the object. Under what circumstances is this statement true? ANSWER: Now apply what you know to some more complicated situations. Part E An object is floating in equilibrium on the surface of a liquid. The object is then removed and placed in another container, filled with a denser liquid. What would you observe? You did not open hints for this part. ANSWER: for every object submerged partially or completely in a fluid for an object that floats only for an object that sinks for no object submerged in a fluid for every object submerged partially or completely in a fluid for an object that floats for an object that sinks for no object submerged in a fluid Part F An object is floating in equilibrium on the surface of a liquid. The object is then removed and placed in another container, filled with a less dense liquid. What would you observe? You did not open hints for this part. ANSWER: Part G Two objects, T and B, have identical size and shape and have uniform density. They are carefully placed in a container filled with a liquid. Both objects float in equilibrium. Less of object T is submerged than of object B, which floats, fully submerged, closer to the bottom of the container. Which of the following statements is true? ANSWER: The object would sink all the way to the bottom. The object would float submerged more deeply than in the first container. The object would float submerged less deeply than in the first container. More than one of these outcomes is possible. The object would sink all the way to the bottom. The object would float submerged more deeply than in the first container. The object would float submerged less deeply than in the first container. More than one of these outcomes is possible. Object T has a greater density than object B. Object B has a greater density than object T. Both objects have the same density. ± Buoyant Force Conceptual Question A rectangular wooden block of weight floats with exactly one-half of its volume below the waterline. Part A What is the buoyant force acting on the block? You did not open hints for this part. ANSWER: Part B W The buoyant force cannot be determined. 2W W 1 W 2 The density of water is 1.00 . What is the density of the block? You did not open hints for this part. ANSWER: Part C This question will be shown after you complete previous question(s). Part D This question will be shown after you complete previous question(s). Part E This question will be shown after you complete previous question(s). g/cm3 2.00 between 1.00 and 2.00 1.00 between 0.50 and 1.00 0.50 The density cannot be determined. g/cm3 g/cm3 g/cm3 g/cm3 g/cm3 Flow Velocity of Blood Conceptual Question Arteriosclerotic plaques forming on the inner walls of arteries can decrease the effective cross-sectional area of an artery. Even small changes in the effective area of an artery can lead to very large changes in the blood pressure in the artery and possibly to the collapse of the blood vessel. Imagine a healthy artery, with blood flow velocity of and mass per unit volume of . The kinetic energy per unit volume of blood is given by Imagine that plaque has narrowed an artery to one-fifth of its normal cross-sectional area (an 80% blockage). Part A Compared to normal blood flow velocity, , what is the velocity of blood as it passes through this blockage? You did not open hints for this part. ANSWER: Part B This question will be shown after you complete previous question(s). Part C v0 = 0.14 m/s  = 1050 kg/m3 K0 =  . 1 2 v20 v0 80v0 20v0 5v0 v0/5 This question will be shown after you complete previous question(s). For parts D – F imagine that plaque has grown to a 90% blockage. Part D This question will be shown after you complete previous question(s). Part E This question will be shown after you complete previous question(s). Part F This question will be shown after you complete previous question(s). ± Playing with a Water Hose Two children, Ferdinand and Isabella, are playing with a water hose on a sunny summer day. Isabella is holding the hose in her hand 1.0 meters above the ground and is trying to spray Ferdinand, who is standing 10.0 meters away. Part A Will Isabella be able to spray Ferdinand if the water is flowing out of the hose at a constant speed of 3.5 meters per second? Assume that the hose is pointed parallel to the ground and take the magnitude of the acceleration due to gravity to be 9.81 meters per second, per second. You did not open hints for this part. v0 g ANSWER: Part B This question will be shown after you complete previous question(s). Tactics Box 15.2 Finding Whether an Object Floats or Sinks Learning Goal: To practice Tactics Box 15.2 Finding whether an object floats or sinks. If you hold an object underwater and then release it, it can float to the surface, sink, or remain “hanging” in the water, depending on whether the fluid density is larger than, smaller than, or equal to the object’s average density . These conditions are summarized in this Tactics Box. Yes No f avg TACTICS BOX 15.2 Finding whether an object floats or sinks Object sinks Object floats Object has neutral buoyancy An object sinks if it weighs more than the fluid it displaces, that is, if its average density is greater than the density of the fluid: . An object floats on the surface if it weighs less than the fluid it displaces, that is, if its average density is less than the density of the fluid: . An object hangs motionless in the fluid if it weighs exactly the same as the fluid it displaces. It has neutral buoyancy if its average density equals the density of the fluid: . Part A Ice at 0.0 has a density of 917 . A 3.00 ice cube is gently released inside a small container filled with oil and is observed to be neutrally buoyant. What is the density of the oil, ? Express your answer in kilograms per meter cubed to three significant figures. ANSWER: Part B Once the ice cube melts, what happens to the liquid water that it produces? You did not open hints for this part. ANSWER: avg > f avg < f avg = f 'C kg/m3 cm3 oil oil = kg/m3 Part C What happens if some ethyl alcohol of density 790 is poured into the container after the ice cube has melted? ANSWER: Score Summary: Your score on this assignment is 0%. You received 0 out of a possible total of 0 points. The liquid water sinks to the bottom of the container. The liquid water rises to the surface and floats on top of the oil. The liquid water is in static equilibrium at the location where the ice cube was originally placed. kg/m3 A layer of ethyl alcohol forms between the oil and the water. The layer of ethyl alcohol forms at the bottom of the container. The layer of ethyl alcohol forms on the surface.

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Source Selection Assignment Instructions You will need to select a topic on technology that you want to research and this topic will be the one that you use for your Technology Issue paper and presentation later in the semester. Take some extra care in choosing your topic so that it will hold your interest through the semester. Topic and Source Selection Assignment Activity: This assignment will require you to select a topic you wish to investigate. Once selected you will use the Internet to find four sources on the topic. Within your sources there must be varying viewpoints on the topic (i.e. viewpoint 1 – global warming is fact. viewpoint 2 – global warming is fiction. viewpoint 3 – humans have contributed to climate change). You will evaluate your four sources using the CRAAP tool. Purpose: This assignment will demonstrate how to apply a methodological approach to rating and determining the validity of an information source. Assignment: Select a topic from the list of potential topics or propose your own idea to your instructor. Use the Internet to locate 4 sources, more are recommended but you only need to submit 4 after applying the CRAAP tool. You must follow the restrictions listed in the activity area above. You are to complete the CRAAP matrix worksheet for your 4 sources and write a one paragraph evaluation/ opinion on the validity/ reliability of the information source. Deliverable: You will submit one CRAAP matrix worksheet for each of your four information sources. In total you will submit four worksheets for grading. Grading: This assignment is worth 100 points. Each source will be worth 25 points and will be evaluated according to the attached grading rubri

Source Selection Assignment Instructions You will need to select a topic on technology that you want to research and this topic will be the one that you use for your Technology Issue paper and presentation later in the semester. Take some extra care in choosing your topic so that it will hold your interest through the semester. Topic and Source Selection Assignment Activity: This assignment will require you to select a topic you wish to investigate. Once selected you will use the Internet to find four sources on the topic. Within your sources there must be varying viewpoints on the topic (i.e. viewpoint 1 – global warming is fact. viewpoint 2 – global warming is fiction. viewpoint 3 – humans have contributed to climate change). You will evaluate your four sources using the CRAAP tool. Purpose: This assignment will demonstrate how to apply a methodological approach to rating and determining the validity of an information source. Assignment: Select a topic from the list of potential topics or propose your own idea to your instructor. Use the Internet to locate 4 sources, more are recommended but you only need to submit 4 after applying the CRAAP tool. You must follow the restrictions listed in the activity area above. You are to complete the CRAAP matrix worksheet for your 4 sources and write a one paragraph evaluation/ opinion on the validity/ reliability of the information source. Deliverable: You will submit one CRAAP matrix worksheet for each of your four information sources. In total you will submit four worksheets for grading. Grading: This assignment is worth 100 points. Each source will be worth 25 points and will be evaluated according to the attached grading rubri

Corporate Report Assignment Due April 17 Your final paper should include: -5 pages double-spaced narrative. Papers over 5 pages will receive point deduction. -Additional Pages: -Graph of stock performance 3 year price history of company (with article marked), S&P 500, and a benchmark company -Bibliography. But you still need to cite sources in the body of your paper. -Ratio Worksheets – fully completed. You will attach the same ratios that were graded; any corrections that were indicated in the initial grading should be made. -Headings and page numbers -Labels for the ratios (example: times, %, days) Format of Paper: COMPANY BACKGROUND (½-1 page) Include information like founding date, headquarters location, product or service provided, date when first traded in public markets, market on which it trades, and any other information that seems important for understanding the company. FINANCIAL ANALYSIS (2-3 pages) Discuss at least 8 ratios from the Ratio Worksheet that you feel explain the trends/changes within the company over the time period. You will need to choose at least one ratio from each of the overall categories (i.e. one from asset utilization, one from liquidity, etc.) Discuss all of the following for the ratios chosen: -Has it improved, deteriorated or stayed the same over the last 3 years? Do not use the words increasing/decreasing or higher/lower. Instead use better/worse or improving/deteriorating. Explain whether the change in the ratio was a good thing or a bad thing. -What is the reason behind the changes in the ratio? Not just what part of the ratio changed, but what was happening with the company that could have affected the ratio? If you can not find specific news, what do you think was affecting the ratio? -How does it compare to the industry? At least one ratio from each category should be discussed. As you write your paper think about (These were top reasons I docked points in the past): What are the ratios? This is a finance class give me numbers What does the ratio mean or measure? Discuss components (assets increasing but not as much as_____) Discuss company specific things that might impact the component Compare to industry or benchmark After talking about ratios in a specific category, state how the company is doing in that category of ratios. For example: Liquidity ratios measure the firm’s ability to meet short-term obligations. Are you confident your company can meet their short term obligations? Overall discussion of the company’s performance based upon the ratio analysis. Although you don’t have to tell me every number you looked at you should include plenty of numbers in your paper. STOCK GRAPH (1-2 pages) Analyze your company’s stock performance over the last 3 years. Comment on any patterns you notice for your company and how it moves with the S&P500. When and what was the high price/low price? Does this make sense with what you see overall in your financial analysis? Discuss if the Beta of your company makes sense with what you see on the graph (and your financial analysis.) If your company is too new that no beta has been calculated, you will have to estimate what you believe the beta would be based on the performance. What was the price trend throughout the semester? Why did it move this way? Discuss at least one news event found in an article from a business publication or journal (i.e. Wall Street Journal, Business Week, or any article from library website) that occurred in the 3 year time period you are evaluating. Summarize the article (more than one sentence) and tell me whether you thought the stock price would increase or decrease when investors heard this news; and then tell me what actually happened. Mark the date of the article on your graph. The news event should be about the company not just about the industry. CONCLUSION (¼-½ page) State what actions you think the company should take to become or remain financially strong. The paper should end with a statement about whether you would buy, hold or sell your stock in this company. BIBLIOGRAPHY All sources used should be referenced on the bibliography and throughout the paper.

Corporate Report Assignment Due April 17 Your final paper should include: -5 pages double-spaced narrative. Papers over 5 pages will receive point deduction. -Additional Pages: -Graph of stock performance 3 year price history of company (with article marked), S&P 500, and a benchmark company -Bibliography. But you still need to cite sources in the body of your paper. -Ratio Worksheets – fully completed. You will attach the same ratios that were graded; any corrections that were indicated in the initial grading should be made. -Headings and page numbers -Labels for the ratios (example: times, %, days) Format of Paper: COMPANY BACKGROUND (½-1 page) Include information like founding date, headquarters location, product or service provided, date when first traded in public markets, market on which it trades, and any other information that seems important for understanding the company. FINANCIAL ANALYSIS (2-3 pages) Discuss at least 8 ratios from the Ratio Worksheet that you feel explain the trends/changes within the company over the time period. You will need to choose at least one ratio from each of the overall categories (i.e. one from asset utilization, one from liquidity, etc.) Discuss all of the following for the ratios chosen: -Has it improved, deteriorated or stayed the same over the last 3 years? Do not use the words increasing/decreasing or higher/lower. Instead use better/worse or improving/deteriorating. Explain whether the change in the ratio was a good thing or a bad thing. -What is the reason behind the changes in the ratio? Not just what part of the ratio changed, but what was happening with the company that could have affected the ratio? If you can not find specific news, what do you think was affecting the ratio? -How does it compare to the industry? At least one ratio from each category should be discussed. As you write your paper think about (These were top reasons I docked points in the past): What are the ratios? This is a finance class give me numbers What does the ratio mean or measure? Discuss components (assets increasing but not as much as_____) Discuss company specific things that might impact the component Compare to industry or benchmark After talking about ratios in a specific category, state how the company is doing in that category of ratios. For example: Liquidity ratios measure the firm’s ability to meet short-term obligations. Are you confident your company can meet their short term obligations? Overall discussion of the company’s performance based upon the ratio analysis. Although you don’t have to tell me every number you looked at you should include plenty of numbers in your paper. STOCK GRAPH (1-2 pages) Analyze your company’s stock performance over the last 3 years. Comment on any patterns you notice for your company and how it moves with the S&P500. When and what was the high price/low price? Does this make sense with what you see overall in your financial analysis? Discuss if the Beta of your company makes sense with what you see on the graph (and your financial analysis.) If your company is too new that no beta has been calculated, you will have to estimate what you believe the beta would be based on the performance. What was the price trend throughout the semester? Why did it move this way? Discuss at least one news event found in an article from a business publication or journal (i.e. Wall Street Journal, Business Week, or any article from library website) that occurred in the 3 year time period you are evaluating. Summarize the article (more than one sentence) and tell me whether you thought the stock price would increase or decrease when investors heard this news; and then tell me what actually happened. Mark the date of the article on your graph. The news event should be about the company not just about the industry. CONCLUSION (¼-½ page) State what actions you think the company should take to become or remain financially strong. The paper should end with a statement about whether you would buy, hold or sell your stock in this company. BIBLIOGRAPHY All sources used should be referenced on the bibliography and throughout the paper.

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– 1 – Fall 2015 EECS 338 Assignment 2 Due: Oct. 1st, 2015 G. Ozsoyoglu Concurrent Programming with Semaphores; 140 points (100 pts) 1. Priority-based Searchers/Inserters/Deleters Problem without starvation. Three types of processes, namely, searchers, inserters, and deleters share access to a singly linked list L, and perform search, insert, or delete operations, respectively. The list L does not have duplicate values. a) Searchers merely search the list L, and report success (i.e., item searched is in L) or no-success (i.e., item searched is not in L) to a log file. Hence they can execute concurrently with each other. b) Inserters add new items to the end of the list L, and report success (i.e., item is not in L, and successfully inserted into L) or no-success (i.e., item is already in L, and no insertion takes place) to a log file. Insertions must be mutually exclusive to preclude two inserters from inserting new items at about the same time. However, one insert can proceed in parallel with any number of searches. c) Deleters remove items from anywhere in the list, and report success (i.e., the item is found in L and deleted) or no-success (i.e., item is not in L, and could not be deleted) to a log file. At most one deleter can access the list L at a time, and the deletion must be mutually exclusive with searches and insertions. d) Initial start. Searcher, inserter, and deleter processes are initially launched as follows. A user process that needs a search/insertion/deletion operation to the list L first forks a process, and then, in the forked process, performs an execv into a searcher/ inserter/deleter process. e) Log maintenance. Upon start, each searcher/inserter/deleter writes to a log file, recording the time of insertion, process id, process type (i.e., searcher, inserter, or deleter), and the item that is being searched/inserted/deleted. f) Termination. Upon successful or unsuccessful completion, each searcher/inserter/deleter writes to the same log file, recording the time and the result of its execution. g) Priority-based service between three types. Searchers, inserters, and deleters perform their search, insert, delete operations, respectively, on a priority basis (not on a first-come-first-serve (FCFS) basis) between separate process types (i.e., searchers, inserters, deleters) as follows. Searchers search with the highest priority; inserters insert with the second highest priority (except that one inserter can proceed in parallel with any number of searchers), and deleters delete with the lowest priority. h) FCFS service within a single type. Processes of the same type are serviced FCFS. As an example, among multiple inserters, the order of insertions into L is FCFS. Similarly, among multiple deleters, the order of deletions into L is FCFS. Note that, among searchers, while the start of search among searchers is FCFS, due to concurrent searcher execution, the completions of multiple searchers may not be FCFS. i) Starvation avoidance. In addition to the above priority-based search/insert/delete operations, the following starvation-avoidance rule is enforced. o After 10 consecutive searchers search the list L, if there is at least one waiting inserter or deleter then newly arriving searchers are blocked until (a) all waiting inserters are first serviced FCFS, and, then (b) all waiting deleters are serviced FCFS. Then, both the standard priority-based service between process types and the FCFS service within a process type resume. You are to specify a semaphore-based algorithm to synchronize searcher, inserter and deleter processes. Note:  Explain your algorithm.  Make sure to state any assumptions you make in your solution.  Specify the initial states of your variables and semaphores.  Specify whether your semaphores are binary or nonbinary.  Do not bother specifying algorithms for sequential tasks: simply specify a well-defined function/procedure (i.e., one with well-defined input/output/functional specification). – 2 – (40 pts) 2. Four-of-a-Kind Problem is defined as follows.  There is a deck of 24 cards, split into 6 different kinds, 4 cards of each kind.  There are 4 players (i.e., processes) ??,0≤?≤3; each player can hold 4 cards.  Between each pair of adjacent (i.e., seated next to each other) players, there is a pile of cards.  The game begins by o someone dealing four cards to each player, and putting two cards on the pile between each pair of adjacent players, and o ?0 starting the game. If ?0 has four-of-a-kind, ?0 wins. Whoever gets four-of-a-kind first wins.  Players take turns to play clockwise. That is, ?0 plays, ?1 plays, ?2 plays, ?3 plays, ?0 plays, etc.  Each player behaves as follows. o So long as no one has won, keep playing. o If it is my turn and no one has won:  Check for Four-of-a-Kind. If yes, claim victory. Otherwise discard a card into the pile on the right; pick up a card from the pile on the left; and, check again: If Four-of-a-Kind, claim victory; otherwise revise turn so that the next player plays and wait for your turn.  There are no ties; when a player has claimed victory, all other players stop (when their turns to play come up). You are to specify a semaphore-based algorithm to the Four-of-a-Kind problem. Note:  Explain your algorithm.  Make sure to state any assumptions you make in your solution.  Specify the initial states of your variables and semaphores.  Specify whether your semaphores are binary or nonbinary.  Do not bother specifying algorithms for sequential tasks: simply specify a well-defined function/procedure (i.e., one with well-defined input/output/functional specification). P1 P0 P2 P3 pile 1 pile 2 pile 3 pile 0

– 1 – Fall 2015 EECS 338 Assignment 2 Due: Oct. 1st, 2015 G. Ozsoyoglu Concurrent Programming with Semaphores; 140 points (100 pts) 1. Priority-based Searchers/Inserters/Deleters Problem without starvation. Three types of processes, namely, searchers, inserters, and deleters share access to a singly linked list L, and perform search, insert, or delete operations, respectively. The list L does not have duplicate values. a) Searchers merely search the list L, and report success (i.e., item searched is in L) or no-success (i.e., item searched is not in L) to a log file. Hence they can execute concurrently with each other. b) Inserters add new items to the end of the list L, and report success (i.e., item is not in L, and successfully inserted into L) or no-success (i.e., item is already in L, and no insertion takes place) to a log file. Insertions must be mutually exclusive to preclude two inserters from inserting new items at about the same time. However, one insert can proceed in parallel with any number of searches. c) Deleters remove items from anywhere in the list, and report success (i.e., the item is found in L and deleted) or no-success (i.e., item is not in L, and could not be deleted) to a log file. At most one deleter can access the list L at a time, and the deletion must be mutually exclusive with searches and insertions. d) Initial start. Searcher, inserter, and deleter processes are initially launched as follows. A user process that needs a search/insertion/deletion operation to the list L first forks a process, and then, in the forked process, performs an execv into a searcher/ inserter/deleter process. e) Log maintenance. Upon start, each searcher/inserter/deleter writes to a log file, recording the time of insertion, process id, process type (i.e., searcher, inserter, or deleter), and the item that is being searched/inserted/deleted. f) Termination. Upon successful or unsuccessful completion, each searcher/inserter/deleter writes to the same log file, recording the time and the result of its execution. g) Priority-based service between three types. Searchers, inserters, and deleters perform their search, insert, delete operations, respectively, on a priority basis (not on a first-come-first-serve (FCFS) basis) between separate process types (i.e., searchers, inserters, deleters) as follows. Searchers search with the highest priority; inserters insert with the second highest priority (except that one inserter can proceed in parallel with any number of searchers), and deleters delete with the lowest priority. h) FCFS service within a single type. Processes of the same type are serviced FCFS. As an example, among multiple inserters, the order of insertions into L is FCFS. Similarly, among multiple deleters, the order of deletions into L is FCFS. Note that, among searchers, while the start of search among searchers is FCFS, due to concurrent searcher execution, the completions of multiple searchers may not be FCFS. i) Starvation avoidance. In addition to the above priority-based search/insert/delete operations, the following starvation-avoidance rule is enforced. o After 10 consecutive searchers search the list L, if there is at least one waiting inserter or deleter then newly arriving searchers are blocked until (a) all waiting inserters are first serviced FCFS, and, then (b) all waiting deleters are serviced FCFS. Then, both the standard priority-based service between process types and the FCFS service within a process type resume. You are to specify a semaphore-based algorithm to synchronize searcher, inserter and deleter processes. Note:  Explain your algorithm.  Make sure to state any assumptions you make in your solution.  Specify the initial states of your variables and semaphores.  Specify whether your semaphores are binary or nonbinary.  Do not bother specifying algorithms for sequential tasks: simply specify a well-defined function/procedure (i.e., one with well-defined input/output/functional specification). – 2 – (40 pts) 2. Four-of-a-Kind Problem is defined as follows.  There is a deck of 24 cards, split into 6 different kinds, 4 cards of each kind.  There are 4 players (i.e., processes) ??,0≤?≤3; each player can hold 4 cards.  Between each pair of adjacent (i.e., seated next to each other) players, there is a pile of cards.  The game begins by o someone dealing four cards to each player, and putting two cards on the pile between each pair of adjacent players, and o ?0 starting the game. If ?0 has four-of-a-kind, ?0 wins. Whoever gets four-of-a-kind first wins.  Players take turns to play clockwise. That is, ?0 plays, ?1 plays, ?2 plays, ?3 plays, ?0 plays, etc.  Each player behaves as follows. o So long as no one has won, keep playing. o If it is my turn and no one has won:  Check for Four-of-a-Kind. If yes, claim victory. Otherwise discard a card into the pile on the right; pick up a card from the pile on the left; and, check again: If Four-of-a-Kind, claim victory; otherwise revise turn so that the next player plays and wait for your turn.  There are no ties; when a player has claimed victory, all other players stop (when their turns to play come up). You are to specify a semaphore-based algorithm to the Four-of-a-Kind problem. Note:  Explain your algorithm.  Make sure to state any assumptions you make in your solution.  Specify the initial states of your variables and semaphores.  Specify whether your semaphores are binary or nonbinary.  Do not bother specifying algorithms for sequential tasks: simply specify a well-defined function/procedure (i.e., one with well-defined input/output/functional specification). P1 P0 P2 P3 pile 1 pile 2 pile 3 pile 0

– 1 – Fall 2015 EECS 338 Assignment 2 Due: … Read More...
According to Galen, an excess of yellow bile would cause a person to most likely ________. isolate themselves from others be thoughtlessly rude and cold be friendly and cheerful at a party hold a grudge after an argument

According to Galen, an excess of yellow bile would cause a person to most likely ________. isolate themselves from others be thoughtlessly rude and cold be friendly and cheerful at a party hold a grudge after an argument

According to Galen, an excess of yellow bile would cause … Read More...
1181 Assignment #8 Parallel Arrays For this application, you will use parallel arrays to compare grades of a list of students. 1. Rename the form to frmGrades and give the form an appropriate title. 2. Add the following variables as global (class level) variables. String namesString = “Aaron Ben Carmelina Dorthey Erinn Karin ” + “Lester Mitsue Nichol Ria Sherie Zachary”; String assignmentsString = “44 92 100 100 100 97 100 95 100 0 100 100|” + “95 95 97 90 100 95 100 100 100 100 100 75|” + “98 100 65 0 100 100 100 100 100 100 95 75|” + “85 100 0 50 100 95 90 0 80 100 100 100”; 3. Create three global (class level) arrays. a. One will hold all of the names of your students. b. One will be a 2D array to hold each of the grades for each assignment. c. One will hold the calculated grade for each student for all of their assignments. 4. Add a ListBox to the form to display all of the student names and assignment grades in your arrays. 5. Add a button to do the following: a. Fill the name and assignment grades 2D global arrays from these two strings. The arrays will be ran in parallel. i. Remember Split(). b. DataTypes on the arrays must be appropriate. c. After filling the arrays, call a method to fill the ListBox with student names and grades. i. Remember to use a mono-spaced font. 6. Add a button that will calculate the grade of each student: a. A method to calculate the grade for each student will be called from this event to fill the grades array. 7. Add 3 Labels to display the Name, Grade, and Letter grade of a selected student. 8. Add a Button that will fill the three previously mentioned Labels from the name and grade arrays. a. You will need to make sure the code cannot run until all appropriate arrays have been filled. b. You will need to use the arrays to fill the Labels. c. A method to calculate and return the appropriate letter grade for the student will need to be called from this event method. i. Hint: there is a .SelectedIndex property on a ListBox to get which item in a ListBox is selected. 9. Add a four Labels for the average grade of each assignment. 10. Add a button to display the average of each assignment in the four Labels. a. This event method will need to call a method that calculates the average grade of an assignment from a given index relating to the assignment in the assignment array. 11. You will need a method for each of the following: a. Fill the arrays from the strings provided. i. Hint: the .Split() method is on a string. However, you will not be able to use this directly to fill the assignment array. b. Display the names and assignment grades of each students in the ListBox i. Hint: the .PadLeft() and .PadRight() methods are on a string. c. Get an array of student average across all assignments. i. This is calculated by iterating across the appropriate index of the 2D assignment array for each student and calculating the average of the four assignment grades. This array will be ran in parallel with the student names array. d. Display the name, grade, and letter grade for a given index in the labels. e. Letter grade is returned for a given grade (use +/- system) f. Get the average grade of an assignment using the index of that assignment in the assignments array. Structure Chart Scoring 1. 5% – Form contains controls necessary for assignment. 2. 10% – Validation as needed as described in the assignment. a. This can be either pre-checking or hiding of controls. 3. 5% – Proper datatypes used for each array to include 2D and parallel arrays. 4. 10% – Method used that correctly fills arrays from strings provided. 5. 10% – Method used that displays all students and grades in ListBox. 6. 10% – Method used to return grades for each student based on assignment grades. 7. 10% – Method used to correctly fill name, grade and letter grade to the form using parallel arrays. 8. 5% – Method used that returns the correct letter grade using +/- system. 9. 10% – Method used that returns the correct average of the grades from a given assignment index. 10. 5% – Parallel arrays use indexes correctly. 11. 15% – Meaningful comments; Correct formatting (indentation, braces, whitespace, etc). This should be done automatically if you set up your preferences correctly as described at the beginning of this document. a. Form, TextBoxes, and Buttons are named properly. b. Form and controls have proper titles and labels. 12. 5% – Wow Factor: do something more to the assignment that shows creativity. (Make sure to document it and that it works.) ButtonAverages_Click getAssgnAverageGrade fillArrays displayNames ButtonShow_Click assgnIndex showStudentDetails ButtonSelected_Click selectedIndex getLetterGrade gradeAvg letterGrade Letter Grade Range A 93 – 100 A – 90 – 92.9 B + 87 – 89.9 B 83 – 86.9 B – 80 – 82.9 C + 77 – 79.9 C 73 – 76.9 C – 70 – 72.9 D + 67 – 69.9 D 63 – 66.9 D – 60 – 62.9 F < 60 avgGrade ButtonGrades_Click getStudentGrades studGrades

1181 Assignment #8 Parallel Arrays For this application, you will use parallel arrays to compare grades of a list of students. 1. Rename the form to frmGrades and give the form an appropriate title. 2. Add the following variables as global (class level) variables. String namesString = “Aaron Ben Carmelina Dorthey Erinn Karin ” + “Lester Mitsue Nichol Ria Sherie Zachary”; String assignmentsString = “44 92 100 100 100 97 100 95 100 0 100 100|” + “95 95 97 90 100 95 100 100 100 100 100 75|” + “98 100 65 0 100 100 100 100 100 100 95 75|” + “85 100 0 50 100 95 90 0 80 100 100 100”; 3. Create three global (class level) arrays. a. One will hold all of the names of your students. b. One will be a 2D array to hold each of the grades for each assignment. c. One will hold the calculated grade for each student for all of their assignments. 4. Add a ListBox to the form to display all of the student names and assignment grades in your arrays. 5. Add a button to do the following: a. Fill the name and assignment grades 2D global arrays from these two strings. The arrays will be ran in parallel. i. Remember Split(). b. DataTypes on the arrays must be appropriate. c. After filling the arrays, call a method to fill the ListBox with student names and grades. i. Remember to use a mono-spaced font. 6. Add a button that will calculate the grade of each student: a. A method to calculate the grade for each student will be called from this event to fill the grades array. 7. Add 3 Labels to display the Name, Grade, and Letter grade of a selected student. 8. Add a Button that will fill the three previously mentioned Labels from the name and grade arrays. a. You will need to make sure the code cannot run until all appropriate arrays have been filled. b. You will need to use the arrays to fill the Labels. c. A method to calculate and return the appropriate letter grade for the student will need to be called from this event method. i. Hint: there is a .SelectedIndex property on a ListBox to get which item in a ListBox is selected. 9. Add a four Labels for the average grade of each assignment. 10. Add a button to display the average of each assignment in the four Labels. a. This event method will need to call a method that calculates the average grade of an assignment from a given index relating to the assignment in the assignment array. 11. You will need a method for each of the following: a. Fill the arrays from the strings provided. i. Hint: the .Split() method is on a string. However, you will not be able to use this directly to fill the assignment array. b. Display the names and assignment grades of each students in the ListBox i. Hint: the .PadLeft() and .PadRight() methods are on a string. c. Get an array of student average across all assignments. i. This is calculated by iterating across the appropriate index of the 2D assignment array for each student and calculating the average of the four assignment grades. This array will be ran in parallel with the student names array. d. Display the name, grade, and letter grade for a given index in the labels. e. Letter grade is returned for a given grade (use +/- system) f. Get the average grade of an assignment using the index of that assignment in the assignments array. Structure Chart Scoring 1. 5% – Form contains controls necessary for assignment. 2. 10% – Validation as needed as described in the assignment. a. This can be either pre-checking or hiding of controls. 3. 5% – Proper datatypes used for each array to include 2D and parallel arrays. 4. 10% – Method used that correctly fills arrays from strings provided. 5. 10% – Method used that displays all students and grades in ListBox. 6. 10% – Method used to return grades for each student based on assignment grades. 7. 10% – Method used to correctly fill name, grade and letter grade to the form using parallel arrays. 8. 5% – Method used that returns the correct letter grade using +/- system. 9. 10% – Method used that returns the correct average of the grades from a given assignment index. 10. 5% – Parallel arrays use indexes correctly. 11. 15% – Meaningful comments; Correct formatting (indentation, braces, whitespace, etc). This should be done automatically if you set up your preferences correctly as described at the beginning of this document. a. Form, TextBoxes, and Buttons are named properly. b. Form and controls have proper titles and labels. 12. 5% – Wow Factor: do something more to the assignment that shows creativity. (Make sure to document it and that it works.) ButtonAverages_Click getAssgnAverageGrade fillArrays displayNames ButtonShow_Click assgnIndex showStudentDetails ButtonSelected_Click selectedIndex getLetterGrade gradeAvg letterGrade Letter Grade Range A 93 – 100 A – 90 – 92.9 B + 87 – 89.9 B 83 – 86.9 B – 80 – 82.9 C + 77 – 79.9 C 73 – 76.9 C – 70 – 72.9 D + 67 – 69.9 D 63 – 66.9 D – 60 – 62.9 F < 60 avgGrade ButtonGrades_Click getStudentGrades studGrades

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