2. In Graff and Birkenstein’s example from chapter one, what does the speaker at the academic conference do wrong? What could the speaker do to fix this problem?

2. In Graff and Birkenstein’s example from chapter one, what does the speaker at the academic conference do wrong? What could the speaker do to fix this problem?

2.    In Graff and Birkenstein’s example from chapter one, what … Read More...
QUESTION 1 1. Convert 30 degrees 2 minutes to decimal degrees. Give this answer to 6 decimal places. Do not provide units. You know those are decimal degrees. 5 points QUESTION 2 1. Convert 342 degrees 6 minutes and 41 seconds to decimal degrees. Show your answers to only 6 decimal places. Do not give units. 5 points QUESTION 3 1. COMPUTE the sin of 52 degrees. Give the answer to 6 decimal places. 5 points QUESTION 4 1. What is the sine of 277 degrees and 16 minutes? Give your answer to 6 decimal places. Pay attention to rounding. 5 points QUESTION 5 1. This is a right triangle problem. Angle A is 90 degrees. Draw the triangle and label it as we did in lecture. If angle B is 24 degrees 43 minutes and side c is 395.82 feet, what is the distance in feet of side b? Give your answer to two decimal places. Do not provide units. Those are in feet – right? 10 points QUESTION 6 1. This is a right triangle problem with angle A being the 90 degree angle. It should look like the one from lecture. If angle B is 25 degrees 18 minutes and side c is 206.1 feet, what is the distance to two decimal places of side a? Give your answer to two decimal places. Do not provide units – those are in feet. 10 points QUESTION 7 1. You are given a right triangle with angle A being the 90 degree angle – just like in lecture. If angle C is 42 degrees 9 minutes and side a is 401.73 feet, what is the length of side c? Give your answer to two decimal places. The units are feet – don’t list those. 10 points QUESTION 8 Ad by Browse Safe | Close 1. It is desired to determine the height of a flagpole. Assuming that the ground is level, an instrument is set up 227.59 feet from the flagpole with its telescope centered 5.31 feet above the ground. The telescope is sighted horizontally to a point 5.31 feet from the bottom of the flagpole and then the angle at the instrument looking to the top of the pole is measured. That angle is 26 degrees 51 minutes. How tall is the flagpole from its base? Give your answer to two decimal places with NO units. 10 points QUESTION 9 1. You are hiking in the mountains. For every 100.00 feet you would be walking horizontally, you have increased your elevation by 4 feet. At what grade are you climbing? Give your answer to three decimal places. Hint: Your units will be in ft/ft. 5 points QUESTION 10 1. A grade of -0.9 percent is being considered for a mountain roadway. The elevation at the initial point is 2,848.25 feet and a horizontal distance of 4,377.51 needs to be covered. What is the elevation at the end of the grade? 10 points QUESTION 11 1. A slope distance was measured between two points (A and T) and determined to be 4,788.68 feet. At point A the elevation is 857.23 feet and at point T the elevation is 877.96 feet. What is the horizontal distance between A and T?

QUESTION 1 1. Convert 30 degrees 2 minutes to decimal degrees. Give this answer to 6 decimal places. Do not provide units. You know those are decimal degrees. 5 points QUESTION 2 1. Convert 342 degrees 6 minutes and 41 seconds to decimal degrees. Show your answers to only 6 decimal places. Do not give units. 5 points QUESTION 3 1. COMPUTE the sin of 52 degrees. Give the answer to 6 decimal places. 5 points QUESTION 4 1. What is the sine of 277 degrees and 16 minutes? Give your answer to 6 decimal places. Pay attention to rounding. 5 points QUESTION 5 1. This is a right triangle problem. Angle A is 90 degrees. Draw the triangle and label it as we did in lecture. If angle B is 24 degrees 43 minutes and side c is 395.82 feet, what is the distance in feet of side b? Give your answer to two decimal places. Do not provide units. Those are in feet – right? 10 points QUESTION 6 1. This is a right triangle problem with angle A being the 90 degree angle. It should look like the one from lecture. If angle B is 25 degrees 18 minutes and side c is 206.1 feet, what is the distance to two decimal places of side a? Give your answer to two decimal places. Do not provide units – those are in feet. 10 points QUESTION 7 1. You are given a right triangle with angle A being the 90 degree angle – just like in lecture. If angle C is 42 degrees 9 minutes and side a is 401.73 feet, what is the length of side c? Give your answer to two decimal places. The units are feet – don’t list those. 10 points QUESTION 8 Ad by Browse Safe | Close 1. It is desired to determine the height of a flagpole. Assuming that the ground is level, an instrument is set up 227.59 feet from the flagpole with its telescope centered 5.31 feet above the ground. The telescope is sighted horizontally to a point 5.31 feet from the bottom of the flagpole and then the angle at the instrument looking to the top of the pole is measured. That angle is 26 degrees 51 minutes. How tall is the flagpole from its base? Give your answer to two decimal places with NO units. 10 points QUESTION 9 1. You are hiking in the mountains. For every 100.00 feet you would be walking horizontally, you have increased your elevation by 4 feet. At what grade are you climbing? Give your answer to three decimal places. Hint: Your units will be in ft/ft. 5 points QUESTION 10 1. A grade of -0.9 percent is being considered for a mountain roadway. The elevation at the initial point is 2,848.25 feet and a horizontal distance of 4,377.51 needs to be covered. What is the elevation at the end of the grade? 10 points QUESTION 11 1. A slope distance was measured between two points (A and T) and determined to be 4,788.68 feet. At point A the elevation is 857.23 feet and at point T the elevation is 877.96 feet. What is the horizontal distance between A and T?

Question no Assignment 2 1 30.0333333 degrees 2 342.111389 degrees … Read More...
You will receive no credit for items you complete after the assignment is due. Grading Policy Exercise 2.5 Starting from the front door of your ranch house, you walk 60.0 due east to your windmill, and then you turn around and slowly walk 35.0 west to a bench where you sit and watch the sunrise. It takes you 27.0 to walk from your house to the windmill and then 49.0 to walk from the windmill to the bench. Part A For the entire trip from your front door to the bench, what is your average velocity? Express your answer with the appropriate units. ANSWER: Correct Part B For the entire trip from your front door to the bench, what is your average speed? Express your answer with the appropriate units. ANSWER: Correct Exercise 2.7 A car is stopped at a traffic light. It then travels along a straight road so that its distance from the light is given by , where = 2.40 and = 0.110 . = -0.329 average speed = 1.25 Week 2 https://session.masteringphysics.com/myct/assignmentPrintView?assignme… 1 of 16 3/23/2015 11:12 AM Part A Calculate the average velocity of the car for the time interval = 0 to = 10.0 . ANSWER: Correct Part B Calculate the instantaneous velocity of the car at =0. ANSWER: Correct Part C Calculate the instantaneous velocity of the car at =5.00 . ANSWER: Correct Part D Calculate the instantaneous velocity of the car at =10.0 . ANSWER: Correct Part E How long after starting from rest is the car again at rest? ANSWER: = 13.0 = 0 = 15.8 = 15.0 Week 2 https://session.masteringphysics.com/myct/assignmentPrintView?assignme… 2 of 16 3/23/2015 11:12 AM Correct Exercise 2.9 A ball moves in a straight line (the x-axis). The graph in the figure shows this ball’s velocity as a function of time. Part A What are the ball’s average velocity during the first 2.8 ? Express your answer using two significant figures. ANSWER: Answer Requested Part B What are the ball’s average speed during the first 2.8 ? Express your answer using two significant figures. ANSWER: Correct = 14.5 = 2.3 = 2.3 Week 2 https://session.masteringphysics.com/myct/assignmentPrintView?assignme… 3 of 16 3/23/2015 11:12 AM Part C Suppose that the ball moved in such a way that the graph segment after 2.0 was -3.0 instead of +3.0 . Find the ball’s and average velocity during the first 2.8 in this case. Express your answer using two significant figures. ANSWER: All attempts used; correct answer displayed Part D Suppose that the ball moved in such a way that the graph segment after 2.0 was -3.0 instead of +3.0 . Find the ball’s average speed during the first 2.8 in this case. Express your answer using two significant figures. ANSWER: Correct Exercise 2.13 Part A The table shows test data for the Bugatti Veyron, the fastest car made. The car is moving in a straight line (the x-axis). Time 0 2.10 20.0 53.0 Speed 0 60.0 205 259 Calculate the car’s average acceleration (in ) between 0 and 2.1 . ANSWER: Correct Part B Calculate the car’s average acceleration (in ) between 2.1 and 20.0 . = 0.57 = 2.3 = 12.8 Week 2 https://session.masteringphysics.com/myct/assignmentPrintView?assignme… 4 of 16 3/23/2015 11:12 AM ANSWER: Correct Part C Calculate the car’s average acceleration (in ) between 20.0 and 53 . ANSWER: Correct Exercise 2.19 An antelope moving with constant acceleration covers the distance 79.0 between two points in time 7.00 . Its speed as it passes the second point is 14.5 . Part A What is its speed at the first point? ANSWER: Correct Part B What is the acceleration? ANSWER: Correct Exercise 2.22 In the fastest measured tennis serve, the ball left the racquet at 73.14 . A served tennis ball is typically in contact with = 3.62 = 0.731 = 8.07 = 0.918 Week 2 https://session.masteringphysics.com/myct/assignmentPrintView?assignme… 5 of 16 3/23/2015 11:12 AM the racquet for 27.0 and starts from rest. Assume constant acceleration. Part A What was the ball’s acceleration during this serve? ANSWER: Correct Part B How far did the ball travel during the serve? ANSWER: Correct Exercise 2.30 A cat walks in a straight line, which we shall call the x-axis with the positive direction to the right. As an observant physicist, you make measurements of this cat’s motion and construct a graph of the feline’s velocity as a function of time (the figure ). Part A Find the cat’s velocity at = 5.0 . Express your answer using two significant figures. ANSWER: = 2710 = 0.987 Week 2 https://session.masteringphysics.com/myct/assignmentPrintView?assignme… 6 of 16 3/23/2015 11:12 AM Correct Part B Find the cat’s velocity at = 8.0 . Express your answer using two significant figures. ANSWER: Correct Part C What is the cat’s acceleration at ? Express your answer using two significant figures. ANSWER: Correct Part D What is the cat’s acceleration at ? Express your answer using two significant figures. ANSWER: Correct Part E What is the cat’s acceleration at ? Express your answer using two significant figures. ANSWER: = 1.3 = -2.7 = -1.3 = -1.3 Week 2 https://session.masteringphysics.com/myct/assignmentPrintView?assignme… 7 of 16 3/23/2015 11:12 AM Correct Part F What distance does the cat move during the first 4.5 ? Express your answer using two significant figures. ANSWER: Correct Part G What distance does the cat move from to ? Express your answer using two significant figures. ANSWER: Correct Part H Sketch clear graph of the cat’s acceleration as function of time, assuming that the cat started at the origin. ANSWER: = -1.3 = 23 = 26 Week 2 https://session.masteringphysics.com/myct/assignmentPrintView?assignme… 8 of 16 3/23/2015 11:12 AM Correct Part I Sketch clear graph of the cat’s position as function of time, assuming that the cat started at the origin. ANSWER: Week 2 https://session.masteringphysics.com/myct/assignmentPrintView?assignme… 9 of 16 3/23/2015 11:12 AM All attempts used; correct answer displayed Exercise 2.35 Part A If a flea can jump straight up to a height of 0.510 , what is its initial speed as it leaves the ground? ANSWER: Correct Part B How long is it in the air? ANSWER: Correct = 3.16 = 0.645 Week 2 https://session.masteringphysics.com/myct/assignmentPrintView?assignme… 10 of 16 3/23/2015 11:12 AM Exercise 2.36 A small rock is thrown vertically upward with a speed of 18.0 from the edge of the roof of a 39.0 tall building. The rock doesn’t hit the building on its way back down and lands in the street below. Air resistance can be neglected. Part A What is the speed of the rock just before it hits the street? Express your answer with the appropriate units. ANSWER: Correct Part B How much time elapses from when the rock is thrown until it hits the street? Express your answer with the appropriate units. ANSWER: Correct Exercise 2.38 You throw a glob of putty straight up toward the ceiling, which is 3.00 above the point where the putty leaves your hand. The initial speed of the putty as it leaves your hand is 9.70 . Part A What is the speed of the putty just before it strikes the ceiling? Express your answer with the appropriate units. ANSWER: Correct Part B = 33.0 = 5.20 = 5.94 Week 2 https://session.masteringphysics.com/myct/assignmentPrintView?assignme… 11 of 16 3/23/2015 11:12 AM How much time from when it leaves your hand does it take the putty to reach the ceiling? Express your answer with the appropriate units. ANSWER: Correct Exercise 3.1 A squirrel has x- and y-coordinates ( 1.2 , 3.3 ) at time and coordinates ( 5.3 , -0.80 ) at time = 2.6 . Part A For this time interval, find the x-component of the average velocity. Express your answer using two significant figures. ANSWER: Correct Part B For this time interval, find the y-component of the average velocity. Express your answer using two significant figures. ANSWER: Correct Part C Find the magnitude of the average velocity. Express your answer using two significant figures. ANSWER: = 0.384 = 1.6 = -1.6 = 2.2 Week 2 https://session.masteringphysics.com/myct/assignmentPrintView?assignme… 12 of 16 3/23/2015 11:12 AM Correct Part D Find the direction of the average velocity. Express your answer using two significant figures. ANSWER: Correct Exercise 3.3 A web page designer creates an animation in which a dot on a computer screen has a position of 4.1 2.1 4.7 . Part A Find the average velocity of the dot between and . Give your answer as a pair of components separated by a comma. For example, if you think the x component is 3 and the y component is 4, then you should enter 3,4. Express your answer using two significant figures. ANSWER: Correct Part B Find the instantaneous velocity at . Give your answer as a pair of components separated by a comma. For example, if you think the x component is 3 and the y component is 4, then you should enter 3,4. Express your answer using two significant figures. ANSWER: Correct Part C = 45 below the x-axis = 4.2,4.7 = 0,4.7 Week 2 https://session.masteringphysics.com/myct/assignmentPrintView?assignme… 13 of 16 3/23/2015 11:12 AM Find the instantaneous velocity at . Give your answer as a pair of components separated by a comma. For example, if you think the x component is 3 and the y component is 4, then you should enter 3,4. Express your answer using two significant figures. ANSWER: Correct Part D Find the instantaneous velocity at . Give your answer as a pair of components separated by a comma. For example, if you think the x component is 3 and the y component is 4, then you should enter 3,4. Express your answer using two significant figures. ANSWER: Correct Exercise 3.5 A jet plane is flying at a constant altitude. At time it has components of velocity 89 , 108 . At time 32.5 the components are 165 , 37 . Part A For this time interval calculate the average acceleration. Give your answer as a pair of components separated by a comma. For example, if you think the x component is 3 and the y component is 4, then you should enter 3,4. Express your answer using two significant figures. ANSWER: Correct Part B Find the magnitude of the average acceleration. Express your answer using two significant figures. ANSWER: = 4.2,4.7 = 8.4,4.7 = 2.3,-2.2 Week 2 https://session.masteringphysics.com/myct/assignmentPrintView?assignme… 14 of 16 3/23/2015 11:12 AM Correct Part C Find the direction of the average acceleration (let the direction be the angle that the vector makes with the +x-axis, measured counterclockwise). ANSWER: Correct Exercise 3.4 The position of a squirrel running in a park is given by . Part A What is , the -component of the velocity of the squirrel, as function of time? ANSWER: Correct Part B What is , the y-component of the velocity of the squirrel, as function of time? ANSWER: = 3.2 = -43.1 Week 2 https://session.masteringphysics.com/myct/assignmentPrintView?assignme… 15 of 16 3/23/2015 11:12 AM Correct Part C At 4.51 , how far is the squirrel from its initial position? Express your answer to three significant figures and include the appropriate units. ANSWER: All attempts used; correct answer displayed Part D At 4.51 , what is the magnitude of the squirrel’s velocity? Express your answer to three significant figures and include the appropriate units. ANSWER: Correct Part E At 4.51 , what is the direction (in degrees counterclockwise from +x-axis) of the squirrel’s velocity? Express your answer to three significant figures and include the appropriate units. ANSWER: Correct Score Summary: Your score on this assignment is 90.1%. You received 14.42 out of a possible total of 16 points. = 2.65 = 1.31 = 62.5 Week 2 https://session.masteringphysics.com/myct/assignmentPrintView?assignme… 16 of 16 3/23/2015 11:12 AM

You will receive no credit for items you complete after the assignment is due. Grading Policy Exercise 2.5 Starting from the front door of your ranch house, you walk 60.0 due east to your windmill, and then you turn around and slowly walk 35.0 west to a bench where you sit and watch the sunrise. It takes you 27.0 to walk from your house to the windmill and then 49.0 to walk from the windmill to the bench. Part A For the entire trip from your front door to the bench, what is your average velocity? Express your answer with the appropriate units. ANSWER: Correct Part B For the entire trip from your front door to the bench, what is your average speed? Express your answer with the appropriate units. ANSWER: Correct Exercise 2.7 A car is stopped at a traffic light. It then travels along a straight road so that its distance from the light is given by , where = 2.40 and = 0.110 . = -0.329 average speed = 1.25 Week 2 https://session.masteringphysics.com/myct/assignmentPrintView?assignme… 1 of 16 3/23/2015 11:12 AM Part A Calculate the average velocity of the car for the time interval = 0 to = 10.0 . ANSWER: Correct Part B Calculate the instantaneous velocity of the car at =0. ANSWER: Correct Part C Calculate the instantaneous velocity of the car at =5.00 . ANSWER: Correct Part D Calculate the instantaneous velocity of the car at =10.0 . ANSWER: Correct Part E How long after starting from rest is the car again at rest? ANSWER: = 13.0 = 0 = 15.8 = 15.0 Week 2 https://session.masteringphysics.com/myct/assignmentPrintView?assignme… 2 of 16 3/23/2015 11:12 AM Correct Exercise 2.9 A ball moves in a straight line (the x-axis). The graph in the figure shows this ball’s velocity as a function of time. Part A What are the ball’s average velocity during the first 2.8 ? Express your answer using two significant figures. ANSWER: Answer Requested Part B What are the ball’s average speed during the first 2.8 ? Express your answer using two significant figures. ANSWER: Correct = 14.5 = 2.3 = 2.3 Week 2 https://session.masteringphysics.com/myct/assignmentPrintView?assignme… 3 of 16 3/23/2015 11:12 AM Part C Suppose that the ball moved in such a way that the graph segment after 2.0 was -3.0 instead of +3.0 . Find the ball’s and average velocity during the first 2.8 in this case. Express your answer using two significant figures. ANSWER: All attempts used; correct answer displayed Part D Suppose that the ball moved in such a way that the graph segment after 2.0 was -3.0 instead of +3.0 . Find the ball’s average speed during the first 2.8 in this case. Express your answer using two significant figures. ANSWER: Correct Exercise 2.13 Part A The table shows test data for the Bugatti Veyron, the fastest car made. The car is moving in a straight line (the x-axis). Time 0 2.10 20.0 53.0 Speed 0 60.0 205 259 Calculate the car’s average acceleration (in ) between 0 and 2.1 . ANSWER: Correct Part B Calculate the car’s average acceleration (in ) between 2.1 and 20.0 . = 0.57 = 2.3 = 12.8 Week 2 https://session.masteringphysics.com/myct/assignmentPrintView?assignme… 4 of 16 3/23/2015 11:12 AM ANSWER: Correct Part C Calculate the car’s average acceleration (in ) between 20.0 and 53 . ANSWER: Correct Exercise 2.19 An antelope moving with constant acceleration covers the distance 79.0 between two points in time 7.00 . Its speed as it passes the second point is 14.5 . Part A What is its speed at the first point? ANSWER: Correct Part B What is the acceleration? ANSWER: Correct Exercise 2.22 In the fastest measured tennis serve, the ball left the racquet at 73.14 . A served tennis ball is typically in contact with = 3.62 = 0.731 = 8.07 = 0.918 Week 2 https://session.masteringphysics.com/myct/assignmentPrintView?assignme… 5 of 16 3/23/2015 11:12 AM the racquet for 27.0 and starts from rest. Assume constant acceleration. Part A What was the ball’s acceleration during this serve? ANSWER: Correct Part B How far did the ball travel during the serve? ANSWER: Correct Exercise 2.30 A cat walks in a straight line, which we shall call the x-axis with the positive direction to the right. As an observant physicist, you make measurements of this cat’s motion and construct a graph of the feline’s velocity as a function of time (the figure ). Part A Find the cat’s velocity at = 5.0 . Express your answer using two significant figures. ANSWER: = 2710 = 0.987 Week 2 https://session.masteringphysics.com/myct/assignmentPrintView?assignme… 6 of 16 3/23/2015 11:12 AM Correct Part B Find the cat’s velocity at = 8.0 . Express your answer using two significant figures. ANSWER: Correct Part C What is the cat’s acceleration at ? Express your answer using two significant figures. ANSWER: Correct Part D What is the cat’s acceleration at ? Express your answer using two significant figures. ANSWER: Correct Part E What is the cat’s acceleration at ? Express your answer using two significant figures. ANSWER: = 1.3 = -2.7 = -1.3 = -1.3 Week 2 https://session.masteringphysics.com/myct/assignmentPrintView?assignme… 7 of 16 3/23/2015 11:12 AM Correct Part F What distance does the cat move during the first 4.5 ? Express your answer using two significant figures. ANSWER: Correct Part G What distance does the cat move from to ? Express your answer using two significant figures. ANSWER: Correct Part H Sketch clear graph of the cat’s acceleration as function of time, assuming that the cat started at the origin. ANSWER: = -1.3 = 23 = 26 Week 2 https://session.masteringphysics.com/myct/assignmentPrintView?assignme… 8 of 16 3/23/2015 11:12 AM Correct Part I Sketch clear graph of the cat’s position as function of time, assuming that the cat started at the origin. ANSWER: Week 2 https://session.masteringphysics.com/myct/assignmentPrintView?assignme… 9 of 16 3/23/2015 11:12 AM All attempts used; correct answer displayed Exercise 2.35 Part A If a flea can jump straight up to a height of 0.510 , what is its initial speed as it leaves the ground? ANSWER: Correct Part B How long is it in the air? ANSWER: Correct = 3.16 = 0.645 Week 2 https://session.masteringphysics.com/myct/assignmentPrintView?assignme… 10 of 16 3/23/2015 11:12 AM Exercise 2.36 A small rock is thrown vertically upward with a speed of 18.0 from the edge of the roof of a 39.0 tall building. The rock doesn’t hit the building on its way back down and lands in the street below. Air resistance can be neglected. Part A What is the speed of the rock just before it hits the street? Express your answer with the appropriate units. ANSWER: Correct Part B How much time elapses from when the rock is thrown until it hits the street? Express your answer with the appropriate units. ANSWER: Correct Exercise 2.38 You throw a glob of putty straight up toward the ceiling, which is 3.00 above the point where the putty leaves your hand. The initial speed of the putty as it leaves your hand is 9.70 . Part A What is the speed of the putty just before it strikes the ceiling? Express your answer with the appropriate units. ANSWER: Correct Part B = 33.0 = 5.20 = 5.94 Week 2 https://session.masteringphysics.com/myct/assignmentPrintView?assignme… 11 of 16 3/23/2015 11:12 AM How much time from when it leaves your hand does it take the putty to reach the ceiling? Express your answer with the appropriate units. ANSWER: Correct Exercise 3.1 A squirrel has x- and y-coordinates ( 1.2 , 3.3 ) at time and coordinates ( 5.3 , -0.80 ) at time = 2.6 . Part A For this time interval, find the x-component of the average velocity. Express your answer using two significant figures. ANSWER: Correct Part B For this time interval, find the y-component of the average velocity. Express your answer using two significant figures. ANSWER: Correct Part C Find the magnitude of the average velocity. Express your answer using two significant figures. ANSWER: = 0.384 = 1.6 = -1.6 = 2.2 Week 2 https://session.masteringphysics.com/myct/assignmentPrintView?assignme… 12 of 16 3/23/2015 11:12 AM Correct Part D Find the direction of the average velocity. Express your answer using two significant figures. ANSWER: Correct Exercise 3.3 A web page designer creates an animation in which a dot on a computer screen has a position of 4.1 2.1 4.7 . Part A Find the average velocity of the dot between and . Give your answer as a pair of components separated by a comma. For example, if you think the x component is 3 and the y component is 4, then you should enter 3,4. Express your answer using two significant figures. ANSWER: Correct Part B Find the instantaneous velocity at . Give your answer as a pair of components separated by a comma. For example, if you think the x component is 3 and the y component is 4, then you should enter 3,4. Express your answer using two significant figures. ANSWER: Correct Part C = 45 below the x-axis = 4.2,4.7 = 0,4.7 Week 2 https://session.masteringphysics.com/myct/assignmentPrintView?assignme… 13 of 16 3/23/2015 11:12 AM Find the instantaneous velocity at . Give your answer as a pair of components separated by a comma. For example, if you think the x component is 3 and the y component is 4, then you should enter 3,4. Express your answer using two significant figures. ANSWER: Correct Part D Find the instantaneous velocity at . Give your answer as a pair of components separated by a comma. For example, if you think the x component is 3 and the y component is 4, then you should enter 3,4. Express your answer using two significant figures. ANSWER: Correct Exercise 3.5 A jet plane is flying at a constant altitude. At time it has components of velocity 89 , 108 . At time 32.5 the components are 165 , 37 . Part A For this time interval calculate the average acceleration. Give your answer as a pair of components separated by a comma. For example, if you think the x component is 3 and the y component is 4, then you should enter 3,4. Express your answer using two significant figures. ANSWER: Correct Part B Find the magnitude of the average acceleration. Express your answer using two significant figures. ANSWER: = 4.2,4.7 = 8.4,4.7 = 2.3,-2.2 Week 2 https://session.masteringphysics.com/myct/assignmentPrintView?assignme… 14 of 16 3/23/2015 11:12 AM Correct Part C Find the direction of the average acceleration (let the direction be the angle that the vector makes with the +x-axis, measured counterclockwise). ANSWER: Correct Exercise 3.4 The position of a squirrel running in a park is given by . Part A What is , the -component of the velocity of the squirrel, as function of time? ANSWER: Correct Part B What is , the y-component of the velocity of the squirrel, as function of time? ANSWER: = 3.2 = -43.1 Week 2 https://session.masteringphysics.com/myct/assignmentPrintView?assignme… 15 of 16 3/23/2015 11:12 AM Correct Part C At 4.51 , how far is the squirrel from its initial position? Express your answer to three significant figures and include the appropriate units. ANSWER: All attempts used; correct answer displayed Part D At 4.51 , what is the magnitude of the squirrel’s velocity? Express your answer to three significant figures and include the appropriate units. ANSWER: Correct Part E At 4.51 , what is the direction (in degrees counterclockwise from +x-axis) of the squirrel’s velocity? Express your answer to three significant figures and include the appropriate units. ANSWER: Correct Score Summary: Your score on this assignment is 90.1%. You received 14.42 out of a possible total of 16 points. = 2.65 = 1.31 = 62.5 Week 2 https://session.masteringphysics.com/myct/assignmentPrintView?assignme… 16 of 16 3/23/2015 11:12 AM

Evaluation Methodology , Fall 2015 EVALUATION PROPOSAL GUIDELINES The evaluation proposal is a major application of knowledge assignment for this course. The proposal should represent your cumulative knowledge of evaluation research methodology. You may be required to submit part of this assignment in sequential stages. If so, you will be provided, in writing, the due dates for the various aspects of the proposal. The date for the submission of the entire proposal is indicated in your course outline. The below components must be included in the proposal. I. Introduction (maximum 10 pages) A. Description of the Program and Organization (the Evaluand) (In this section, be sure to describe who, what, when, and how long the program has been in place; describe the program, types of people involved in the program, and the types of services offered; briefly discussed need for program as determined by program managers) I. Organizational Overview 1. Program Mission, Goals, SMART Objectives, Activities, Resources 2. Organizational Context of the Program II. Program Logic Model of Evaluand (insert program logic model from your previous assignment, attending to feedback from instructor and classmates) III. Significance of the Program and the Evaluation Discuss the Rationale of the Evaluation B. Evaluation Goals, Objectives, and Stakeholders Objectives of the Evaluation Study Description of Key Direct and Indirect Evaluation Stakeholders (e.g., clients, agents, beneficiaries, etc.) Potential Constraints and Barriers of the Evaluation Evaluation Proposal Guidelines (continued) C. Evaluation Approach, Questions and/or Hypotheses Evaluation Approach/Guiding Framework Evaluation Questions (at least three process and three outcome questions) Describe How Evaluation Questions Will Be Generated II. Methodology (maximum 10 pages) A. Participants Target Population/Sample Plan (describe the target population/sample from whom you intend to obtain collect data; justify sampling procedures by relating them to stakeholder characteristics, evaluation questions and criteria, and constraints of the evaluation) Handling Respondents’ Confidentiality and Ethical Concerns (include Informed Consent Form) B. Instrumentation Data Collection Instruments/Measures Describe Measures, Justify Choices, Address Issues of Validity, Reliability, and Cultural/Contextual Relevance; Rationale for Selection of Instruments C. Evaluation Design Data Collection Procedures (Research Design – Qualitative, Quantitative, Mixed Methods) Explain Choice for Data Collection Methods Selected D. Data Map (set up a data map or summary table to show how each step of the evaluation is related to each other); see example below) Evaluation Methodology Evaluation Proposal Guidelines (continued) Table 1. Data Map of Evaluation of the Kids House Afterschool Program (An Illustrative Example) Evaluation Questions Methodology Data Collection Strategy Timeline Does the program provide individual tutoring to the children in the community three days per week, as intended? (process question) Document analysis Evaluator will review copies of program’s weekly service delivery records Ongoing Has the program reached it intended target population? (process question) Document analysis Evaluator will review documents describing the children being served Six weeks after program start How satisfied are the children and their parents (guardian) with the Kids house Program? Qualitative Focus group interviews with the children in the program and separately with their parents (guardian) Ongoing after two weeks program start Did the children in the Kids House Program demonstrate significant improvements in reading? Quantitative Pretest/Posttest Questionnaire Pretest at first session Posttest at last session E. Projected Statistical Analysis of Data F. Data Collection Schedule (Timetable) (must be described in chart form) G. Standards for Evaluation (describe how your proposed evaluation will meet the Program Evaluation Standards – utility, feasibility, propriety, accuracy, accountability and the AEA Guiding Principles for Evaluation) III. Evaluation Products and Communication Plan (maximum two pages) A. Listing of Deliverable or Products Evaluation Methodology Evaluation Proposal Guidelines (continued) B. Communicating Results: The Evaluation Report (describe plan for communicating evaluation findings during the evaluation and at the end of the evaluation – orally? written report? combination? who will you involve in a discussion of the findings and why) . C. Potential Use of Findings for Aiding Direct and Indirect Stakeholders IV. Staffing, Management Plan, and Budget (maximum two pages) A. Describe tasks, deadlines, and who completes them? B. Describe the time, money, and other resources required for addressing your evaluation questions C. Include a narrative a budget and time schedule in table format V. References (minimum of three sources) VI. Appendices (include copies of instruments, consent forms, etc.) VII. Reflective Journaling (Separate Document) Using a diary format, describe// explain what you have learned about yourself and the evaluation profession by taking this course and writing this proposal Other Important Proposal Guidelines A. Typed, double space, 12 point font; one-inch margins on all sides B. Include title page, table of contents, and (if applicable) listing of figures and/or tables C. Maximum of 25 pages (excluding cover page, references, appendices) D. Proper and complete citation for all materials and sources using the American Psychological Association Style Manual (latest edition). Evaluation Methodology Evaluation Proposal Guidelines (cont’d.) E. As a general rule, sources (unless a classic) must be within the past decade and statistical/demographic data no earlier than 2009

Evaluation Methodology , Fall 2015 EVALUATION PROPOSAL GUIDELINES The evaluation proposal is a major application of knowledge assignment for this course. The proposal should represent your cumulative knowledge of evaluation research methodology. You may be required to submit part of this assignment in sequential stages. If so, you will be provided, in writing, the due dates for the various aspects of the proposal. The date for the submission of the entire proposal is indicated in your course outline. The below components must be included in the proposal. I. Introduction (maximum 10 pages) A. Description of the Program and Organization (the Evaluand) (In this section, be sure to describe who, what, when, and how long the program has been in place; describe the program, types of people involved in the program, and the types of services offered; briefly discussed need for program as determined by program managers) I. Organizational Overview 1. Program Mission, Goals, SMART Objectives, Activities, Resources 2. Organizational Context of the Program II. Program Logic Model of Evaluand (insert program logic model from your previous assignment, attending to feedback from instructor and classmates) III. Significance of the Program and the Evaluation Discuss the Rationale of the Evaluation B. Evaluation Goals, Objectives, and Stakeholders Objectives of the Evaluation Study Description of Key Direct and Indirect Evaluation Stakeholders (e.g., clients, agents, beneficiaries, etc.) Potential Constraints and Barriers of the Evaluation Evaluation Proposal Guidelines (continued) C. Evaluation Approach, Questions and/or Hypotheses Evaluation Approach/Guiding Framework Evaluation Questions (at least three process and three outcome questions) Describe How Evaluation Questions Will Be Generated II. Methodology (maximum 10 pages) A. Participants Target Population/Sample Plan (describe the target population/sample from whom you intend to obtain collect data; justify sampling procedures by relating them to stakeholder characteristics, evaluation questions and criteria, and constraints of the evaluation) Handling Respondents’ Confidentiality and Ethical Concerns (include Informed Consent Form) B. Instrumentation Data Collection Instruments/Measures Describe Measures, Justify Choices, Address Issues of Validity, Reliability, and Cultural/Contextual Relevance; Rationale for Selection of Instruments C. Evaluation Design Data Collection Procedures (Research Design – Qualitative, Quantitative, Mixed Methods) Explain Choice for Data Collection Methods Selected D. Data Map (set up a data map or summary table to show how each step of the evaluation is related to each other); see example below) Evaluation Methodology Evaluation Proposal Guidelines (continued) Table 1. Data Map of Evaluation of the Kids House Afterschool Program (An Illustrative Example) Evaluation Questions Methodology Data Collection Strategy Timeline Does the program provide individual tutoring to the children in the community three days per week, as intended? (process question) Document analysis Evaluator will review copies of program’s weekly service delivery records Ongoing Has the program reached it intended target population? (process question) Document analysis Evaluator will review documents describing the children being served Six weeks after program start How satisfied are the children and their parents (guardian) with the Kids house Program? Qualitative Focus group interviews with the children in the program and separately with their parents (guardian) Ongoing after two weeks program start Did the children in the Kids House Program demonstrate significant improvements in reading? Quantitative Pretest/Posttest Questionnaire Pretest at first session Posttest at last session E. Projected Statistical Analysis of Data F. Data Collection Schedule (Timetable) (must be described in chart form) G. Standards for Evaluation (describe how your proposed evaluation will meet the Program Evaluation Standards – utility, feasibility, propriety, accuracy, accountability and the AEA Guiding Principles for Evaluation) III. Evaluation Products and Communication Plan (maximum two pages) A. Listing of Deliverable or Products Evaluation Methodology Evaluation Proposal Guidelines (continued) B. Communicating Results: The Evaluation Report (describe plan for communicating evaluation findings during the evaluation and at the end of the evaluation – orally? written report? combination? who will you involve in a discussion of the findings and why) . C. Potential Use of Findings for Aiding Direct and Indirect Stakeholders IV. Staffing, Management Plan, and Budget (maximum two pages) A. Describe tasks, deadlines, and who completes them? B. Describe the time, money, and other resources required for addressing your evaluation questions C. Include a narrative a budget and time schedule in table format V. References (minimum of three sources) VI. Appendices (include copies of instruments, consent forms, etc.) VII. Reflective Journaling (Separate Document) Using a diary format, describe// explain what you have learned about yourself and the evaluation profession by taking this course and writing this proposal Other Important Proposal Guidelines A. Typed, double space, 12 point font; one-inch margins on all sides B. Include title page, table of contents, and (if applicable) listing of figures and/or tables C. Maximum of 25 pages (excluding cover page, references, appendices) D. Proper and complete citation for all materials and sources using the American Psychological Association Style Manual (latest edition). Evaluation Methodology Evaluation Proposal Guidelines (cont’d.) E. As a general rule, sources (unless a classic) must be within the past decade and statistical/demographic data no earlier than 2009

Name Car Fuel Economy Objectives: 1. Collect data from a reliable source 2. Create a chart of important values 3. Determine what type of graph best fits the available data (exponential, linear, logarithmic, polynomial… etc) 4. Create a plot using the correct values and determine which variable goes on which axis 5. Fit a line to the graph and show equation 6. Use the equation to predict a future value 7. Use the equation editor to display equations Your task: You want to determine whether the curb weight of the vehicle has any impact on the Highway MPG of the vehicle. In order to do this, go to a reliable source and select 10 of your favorite cars. It can be from any make, model or year and be different across the board. As a matter of fact, the more variety you have in the make, model and year the better. (Please follow the correct homework heading format and please record your answers in blue color on this sheet) General note: Whenever you create a graph, label the X-axis and the Y-axis. Give the graph an appropriate title and include units for the axes. Use the Equation Editor to type answers as equations. 1. On Excel, create a table by recording the make, model and year of the vehicle, the curb weight, and the highway MPG (Miles per gallon). Do this for all 10 cars. 2. Create/insert a scatter plot of the Curb weight (X-axis) vs. Highway MPG (Y-axis). 3. Select the data points by right clicking on the data point and select to add a linear trendline for the 10 cars you currently have. Make it a solid green line (format the line). 4. Select to display the equation on the chart. What is the equation? _______________________________ 5. Using your equation, predict the MPG of a Uhaul that has a curb weight of 12,600lbs (type in curb weight as x). What is that MPG (y)? ___________________________. Record the Uhaul’s curb weight and predicted MPG on the excel sheet. Label clearly with the equation used. Does that answer make sense? Why or why not? ___________________________________________________ ___________________________________________________________________________________________ 6. According to the Uhaul website, a typical truck will get about 10 MPG. Create another scatter plot (do not delete the original one) that shows the same data, but is fitted with an exponential trendline (dashed red line). 7. Select to display the equation on the chart. What is the equation? ________________________________ 8. Using your equation, predict the MPG of a Uhaul that has a curb weight of 12,600lbs. What is that MPG? ___________________________. Record the Uhaul’s curb weight and predicted MPG on the excel sheet. Label clearly with the equation used. Does that answer make sense? Why or why not? Is this prediction better or worse than the first equation? ___________________________________________________________________________________________ ___________________________________________________________________________________________ 9. Now create a third scatter plot of curb weight and highway MPG. Add both a linear and exponential trendline. Make the linear trendline a solid green line and the exponential trendline a dashed red line (just like the two previous graphs). 10. Include a legend for the third graph. 11. Organize the excel sheet to make it look professional. 12. Please upload both this document with all of your answers and the Excel sheet that you created in the assignment on eCampus.

Name Car Fuel Economy Objectives: 1. Collect data from a reliable source 2. Create a chart of important values 3. Determine what type of graph best fits the available data (exponential, linear, logarithmic, polynomial… etc) 4. Create a plot using the correct values and determine which variable goes on which axis 5. Fit a line to the graph and show equation 6. Use the equation to predict a future value 7. Use the equation editor to display equations Your task: You want to determine whether the curb weight of the vehicle has any impact on the Highway MPG of the vehicle. In order to do this, go to a reliable source and select 10 of your favorite cars. It can be from any make, model or year and be different across the board. As a matter of fact, the more variety you have in the make, model and year the better. (Please follow the correct homework heading format and please record your answers in blue color on this sheet) General note: Whenever you create a graph, label the X-axis and the Y-axis. Give the graph an appropriate title and include units for the axes. Use the Equation Editor to type answers as equations. 1. On Excel, create a table by recording the make, model and year of the vehicle, the curb weight, and the highway MPG (Miles per gallon). Do this for all 10 cars. 2. Create/insert a scatter plot of the Curb weight (X-axis) vs. Highway MPG (Y-axis). 3. Select the data points by right clicking on the data point and select to add a linear trendline for the 10 cars you currently have. Make it a solid green line (format the line). 4. Select to display the equation on the chart. What is the equation? _______________________________ 5. Using your equation, predict the MPG of a Uhaul that has a curb weight of 12,600lbs (type in curb weight as x). What is that MPG (y)? ___________________________. Record the Uhaul’s curb weight and predicted MPG on the excel sheet. Label clearly with the equation used. Does that answer make sense? Why or why not? ___________________________________________________ ___________________________________________________________________________________________ 6. According to the Uhaul website, a typical truck will get about 10 MPG. Create another scatter plot (do not delete the original one) that shows the same data, but is fitted with an exponential trendline (dashed red line). 7. Select to display the equation on the chart. What is the equation? ________________________________ 8. Using your equation, predict the MPG of a Uhaul that has a curb weight of 12,600lbs. What is that MPG? ___________________________. Record the Uhaul’s curb weight and predicted MPG on the excel sheet. Label clearly with the equation used. Does that answer make sense? Why or why not? Is this prediction better or worse than the first equation? ___________________________________________________________________________________________ ___________________________________________________________________________________________ 9. Now create a third scatter plot of curb weight and highway MPG. Add both a linear and exponential trendline. Make the linear trendline a solid green line and the exponential trendline a dashed red line (just like the two previous graphs). 10. Include a legend for the third graph. 11. Organize the excel sheet to make it look professional. 12. Please upload both this document with all of your answers and the Excel sheet that you created in the assignment on eCampus.

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The 300 kg mass, m, is supported at point C by cables CA and CB. A 200 N force, F, is also applied to the supporting hook at point C. The direction of F is given in the figure. The coordinates of points A, B, and C are also shown. . For all answers, use the x,y coordinate system shown. a. Draw the fiee body diagram (FBD) of the supporting hook at C. This FBD must I be a new figure; do not do it on top of the figure shown, (10 points). b. Write the cable force vector, Tcq, in Cartesian vector form, where the magnitude of the force vector is left as a variable (10 points). c. Write the cable force vector TCB, in Cartesian vector form, where the magnitude of the force vector is left as a variable (1 0 points). d. Determine the unit vector, ec~f,io m point C to B (10 points). e. Using the vector dot product, calculate the angle, a, between the two cables (1 0 points). f. Write (but do not solve) the two equations needed to calculate the tensions in the

The 300 kg mass, m, is supported at point C by cables CA and CB. A 200 N force, F, is also applied to the supporting hook at point C. The direction of F is given in the figure. The coordinates of points A, B, and C are also shown. . For all answers, use the x,y coordinate system shown. a. Draw the fiee body diagram (FBD) of the supporting hook at C. This FBD must I be a new figure; do not do it on top of the figure shown, (10 points). b. Write the cable force vector, Tcq, in Cartesian vector form, where the magnitude of the force vector is left as a variable (10 points). c. Write the cable force vector TCB, in Cartesian vector form, where the magnitude of the force vector is left as a variable (1 0 points). d. Determine the unit vector, ec~f,io m point C to B (10 points). e. Using the vector dot product, calculate the angle, a, between the two cables (1 0 points). f. Write (but do not solve) the two equations needed to calculate the tensions in the

 
three cables connected a point A are used to tether a balloon , and the system is in static equilibrium. The balloon exert the upward force P at point A, and the tension in cable AB is 240N. a) Draw a free-body diagram (FBD) around point A. , b) Express the force P the tension in each of the three cables in cartesian vector form . , c) Determine the magnitude of the tension in cable Ac.

three cables connected a point A are used to tether a balloon , and the system is in static equilibrium. The balloon exert the upward force P at point A, and the tension in cable AB is 240N. a) Draw a free-body diagram (FBD) around point A. , b) Express the force P the tension in each of the three cables in cartesian vector form . , c) Determine the magnitude of the tension in cable Ac.