Which statement would address the e-commerce success factor of security and reliability? Answers: “I don’t want to browse through a slow website or buy from a site where paying takes too long.” “A company’s prices don’t have to be the lowest on the Web if they build a reputation for high quality, guaranteed satisfaction and top customer support while shopping and after the sale.” “I want to know about sales when I log on to a site and even get free shipping if I order a certain dollar value of goods.” “I want to receive the exact products I ordered in the timeframe promised.”

Which statement would address the e-commerce success factor of security and reliability? Answers: “I don’t want to browse through a slow website or buy from a site where paying takes too long.” “A company’s prices don’t have to be the lowest on the Web if they build a reputation for high quality, guaranteed satisfaction and top customer support while shopping and after the sale.” “I want to know about sales when I log on to a site and even get free shipping if I order a certain dollar value of goods.” “I want to receive the exact products I ordered in the timeframe promised.”

Which statement would address the e-commerce success factor of security … Read More...
Phys4A: Practice problems for the 1st midterm test Fall 2015 1 If K has dimensions ML2/T 2, the k in K = kmv 2 must be: Answer: dimensionless 2. A 8.7 hour trip is made at an average speed of 73.0 km/h. If the first third of the trip (chronologically) was driven at 96.5 km/h, what was the average speed for the rest of the journey? Answer: 61 km/h 3. A car travels 95 km to the north at 70.0 km/h, then turns around and travels 21.9 km at 80.0 km/h. What is the difference between the average speed and the average velocity on this trip? Answer: 27 km/h 4. A particle confined to motion along the x axis moves with constant acceleration from x = 2.0 m to x = 8.0 m during a 2.5s time interval. The velocity of the particle at x = 8.0 m is 2.8 m/s. What is the acceleration during this time interval? Answer: 0.32 m/s2 5. A package is dropped from a helicopter moving upward at 15 m/s. If it takes 16.0 s before the package strikes the ground, how high above the ground was the package when it was released? (Disregard air resistance.) Answer: 1000m 6. If vector B is added to vector A, the result is 6i + j. If B is subtracted from A, the result is –4i + 7j. What is the magnitude of A? Answer: 4.1 7. Starting from one oasis, a camel walks 25 km in a direction 30° south of west and then walks 30 km toward the north to a second oasis. What is the direction from the first oasis to the second oasis? Answer: 51° W of N 8 A river 1.00 mile wide flows with a constant speed of 1.00 mi/h. A man can row a boat at 2.00 mi/h. He crosses the river in a direction that puts him directly across the river from the starting point, and then he returns in a direction that puts him back at the starting point in the shortest time possible. The travel time for the man is, Answer: 1.15 h 9 An airplane is heading due east. The airspeed indicator shows that the plane is moving at a speed of 370 km/h relative to the air. If the wind is blowing from the south at 92.5 km/h, the velocity of the airplane relative to the ground is: Answer: 381 km/h at 76o east of north 10. A rock is projected from the edge of the top of a building with an initial velocity of 12.2 m/s at an angle of 53° above the horizontal. The rock strikes the ground a horizontal distance of 25 m from the base of the building. Assume that the ground is level and that the side of the building is vertical. How tall is the building? Answer: 23.6m 11. A boy throws a rock with an initial velocity of 3.13 m/s at 30.0° above the horizontal. How long does it take for the rock to reach the maximum height of its trajectory? Answer: 0.160 s 12. A helicopter is traveling at 54 m/s at a constant altitude of 100 m over a level field. If a wheel falls off the helicopter, with what speed will it hit the ground? Note: air resistance negligible. Answer: 70 m/s 13 A rescue airplane is diving at an angle of 37º below the horizontal with a speed of 250 m/s. It releases a survival package when it is at an altitude of 600 m. If air resistance is ignored, the horizontal distance of the point of impact from the plane at the moment of the package’s release is, Answer: 720 m 14. A hobby rocket reaches a height of 72.3 m and lands 111 m from the launch point. What was the angle of launch? Answer: 69.0° 15. An object moving at a constant speed requires 6.0 s to go once around a circle with a diameter of 4.0 m. What is the magnitude of the instantaneous acceleration of the particle during this time? Answer: 2.2 m/s2 16 A ball is whirled in a horizontal circle of radius r and speed v. The radius is increased to 2r keeping the speed of the ball constant. The period of the ball changes by a factor of Answer: two

Phys4A: Practice problems for the 1st midterm test Fall 2015 1 If K has dimensions ML2/T 2, the k in K = kmv 2 must be: Answer: dimensionless 2. A 8.7 hour trip is made at an average speed of 73.0 km/h. If the first third of the trip (chronologically) was driven at 96.5 km/h, what was the average speed for the rest of the journey? Answer: 61 km/h 3. A car travels 95 km to the north at 70.0 km/h, then turns around and travels 21.9 km at 80.0 km/h. What is the difference between the average speed and the average velocity on this trip? Answer: 27 km/h 4. A particle confined to motion along the x axis moves with constant acceleration from x = 2.0 m to x = 8.0 m during a 2.5s time interval. The velocity of the particle at x = 8.0 m is 2.8 m/s. What is the acceleration during this time interval? Answer: 0.32 m/s2 5. A package is dropped from a helicopter moving upward at 15 m/s. If it takes 16.0 s before the package strikes the ground, how high above the ground was the package when it was released? (Disregard air resistance.) Answer: 1000m 6. If vector B is added to vector A, the result is 6i + j. If B is subtracted from A, the result is –4i + 7j. What is the magnitude of A? Answer: 4.1 7. Starting from one oasis, a camel walks 25 km in a direction 30° south of west and then walks 30 km toward the north to a second oasis. What is the direction from the first oasis to the second oasis? Answer: 51° W of N 8 A river 1.00 mile wide flows with a constant speed of 1.00 mi/h. A man can row a boat at 2.00 mi/h. He crosses the river in a direction that puts him directly across the river from the starting point, and then he returns in a direction that puts him back at the starting point in the shortest time possible. The travel time for the man is, Answer: 1.15 h 9 An airplane is heading due east. The airspeed indicator shows that the plane is moving at a speed of 370 km/h relative to the air. If the wind is blowing from the south at 92.5 km/h, the velocity of the airplane relative to the ground is: Answer: 381 km/h at 76o east of north 10. A rock is projected from the edge of the top of a building with an initial velocity of 12.2 m/s at an angle of 53° above the horizontal. The rock strikes the ground a horizontal distance of 25 m from the base of the building. Assume that the ground is level and that the side of the building is vertical. How tall is the building? Answer: 23.6m 11. A boy throws a rock with an initial velocity of 3.13 m/s at 30.0° above the horizontal. How long does it take for the rock to reach the maximum height of its trajectory? Answer: 0.160 s 12. A helicopter is traveling at 54 m/s at a constant altitude of 100 m over a level field. If a wheel falls off the helicopter, with what speed will it hit the ground? Note: air resistance negligible. Answer: 70 m/s 13 A rescue airplane is diving at an angle of 37º below the horizontal with a speed of 250 m/s. It releases a survival package when it is at an altitude of 600 m. If air resistance is ignored, the horizontal distance of the point of impact from the plane at the moment of the package’s release is, Answer: 720 m 14. A hobby rocket reaches a height of 72.3 m and lands 111 m from the launch point. What was the angle of launch? Answer: 69.0° 15. An object moving at a constant speed requires 6.0 s to go once around a circle with a diameter of 4.0 m. What is the magnitude of the instantaneous acceleration of the particle during this time? Answer: 2.2 m/s2 16 A ball is whirled in a horizontal circle of radius r and speed v. The radius is increased to 2r keeping the speed of the ball constant. The period of the ball changes by a factor of Answer: two

info@checkyourstudy.com
A factor that positively affected the state of women’s health care is: Question 3 options: the entry of women into the workforce during World War II Political attempts to control the distribution of information about reproductive options the treatment of menopause as an “illness” the different treatments for men and women suffering from heart disease

A factor that positively affected the state of women’s health care is: Question 3 options: the entry of women into the workforce during World War II Political attempts to control the distribution of information about reproductive options the treatment of menopause as an “illness” the different treatments for men and women suffering from heart disease

A factor that positively affected the state of women’s health … Read More...
Engineering/Science and Public Policy Paper NOTE: This assignment is an individual Assignment. You could discuss with peers but your submission must reflect your opinions and be completed on your own words. As an engineer/scientist, public policies will directly impact virtually every issue of your professional life: design and construction, public safety, environmental quality, materials application – just to name a few. Appreciating the importance of this process will be a key factor to your success as an engineer/scientist. The purpose of this activity is to provide you with a better understanding of: • Public policy processes that impact engineers/scientist as they practice their profession • State and federal agencies and other legal authorities with jurisdiction over engineering/science matters • The role of engineers/scientist in creating technical solutions that benefit citizens and the environment. Assignment For one of the following four contemporary issues, do the following: a) Identify federal and state agencies / legal authority b) Discuss the engineering/scientific response c) Research codes & standards that are applicable or organizations that should oversee them d) Expand on the societal impact: cost vs. benefit Contemporary Issues for Assignment 1. Policy on Federal Reserve Bank’s Prime Interest Rate and Its Impact on Global Economy 2. Policy on Oil Price vs. Shale Gas/Oil and Its Impact on U.S. and Global Economy 3. Policy on Privacy/Security of Cloud Computing Systems and Its Impact 4. Policy on Biodiesel and Trends: Past, Present, and Future Guidelines a) The document should be in single space format. b) The minimum length is 500 words and the maximum length is 1000 words. c) List of references should be included in a separate page. Appropriate citations must appear in the body of the main document.

Engineering/Science and Public Policy Paper NOTE: This assignment is an individual Assignment. You could discuss with peers but your submission must reflect your opinions and be completed on your own words. As an engineer/scientist, public policies will directly impact virtually every issue of your professional life: design and construction, public safety, environmental quality, materials application – just to name a few. Appreciating the importance of this process will be a key factor to your success as an engineer/scientist. The purpose of this activity is to provide you with a better understanding of: • Public policy processes that impact engineers/scientist as they practice their profession • State and federal agencies and other legal authorities with jurisdiction over engineering/science matters • The role of engineers/scientist in creating technical solutions that benefit citizens and the environment. Assignment For one of the following four contemporary issues, do the following: a) Identify federal and state agencies / legal authority b) Discuss the engineering/scientific response c) Research codes & standards that are applicable or organizations that should oversee them d) Expand on the societal impact: cost vs. benefit Contemporary Issues for Assignment 1. Policy on Federal Reserve Bank’s Prime Interest Rate and Its Impact on Global Economy 2. Policy on Oil Price vs. Shale Gas/Oil and Its Impact on U.S. and Global Economy 3. Policy on Privacy/Security of Cloud Computing Systems and Its Impact 4. Policy on Biodiesel and Trends: Past, Present, and Future Guidelines a) The document should be in single space format. b) The minimum length is 500 words and the maximum length is 1000 words. c) List of references should be included in a separate page. Appropriate citations must appear in the body of the main document.

info@checkyourstudy.com Whatsapp +919911743277
What is the prime purpose of selecting a composite material over material from the other family groups? MODULE 3 – STRUCTURE OF SOLID MATERIALS The ability of a material to exist in different space lattices is called a. Allotropic b. Crystalline c. Solvent d. Amorphous Amorphous metals develop their microstructure as a result of ___________. a. Dendrites b. Directional solidification c. Slip d. Extremely rapid cooling In an alloy, the material that dissolves the alloying element is the ___________. a. Solute b. Solvent c. Matrix d. Allotrope What is the coordination number (CN) for the fcc structure formed by ions of sodium and chlorine that is in the chemical compound NaCl (salt) ? a. 6 b. 8 c. 14 d. 16 What pressure is normally used in constructing a phase diagram? a. 100 psi b. Depends on material c. Ambient d. Normal atmospheric pressure What line on a binary diagram indicates the upper limit of the solid solution phase? a. Liquidus b. Eutectic c. Eutectoid d. Solidus What holds the atoms (ions) together in a compound such as NaCl are electrostatic forces between ___________. a. Atom and ion b. Covalent bonds c. Electrons and nuclei d. Neutrons Diffusion of atoms through a solid takes place by two main mechanisms. One is diffusion through vacancies in the atomic structure. Another method of diffusion is ___________. a. Cold b. APF c. Substitutional d. Interstitial Give a brief explanation of the Lever rule (P117) Grain boundaries ___________ movement of dislocations through a solid. a. Improve b. Inhibit c. Do not affect Iron can be alloyed with carbon because it is ___________. a. Crystalline b. Amorphous c. A mixture d. Allotropic Metals can be cooled only to crystalline solids. a. T (true) b. F (false) Sketch an fcc unit cell. Metals are classified as crystalline materials. Name one metal that is an amorphous solid and name at least one recent application in which its use is saving energy or providing greater strength and/or corrosion resistance. MODULE 4 – MECHANICAL PROPERTIES Give two examples of a mechanical property. a. Thermal resistance b. Wear resistance c. Hardness d. Strength Scissors used in the home cut material by concentrating forces that ultimately produce a certain type of stress within the material. Identify this stress. a. Bearing stress b. Shearing stress c. Compressive stress An aluminum rod 1 in. in diameter (E =10.4 x 106psi) experiences an elastic tensile strain of 0.0048 in./in. Calculate the stress in the rod. a. 49,920 ksi b. 49,920 psi c. 49,920 msi A 1-in.-diameter steel circular rod is subject to a tensile load that reduces its cross-sectional area to 0.64 in2. Express the rod’s ductility using a standard unit of measure. a. 18.5% b. 1.85% c. 18.5 d. (a) and (c) What term is used to describe the low-temperature creep of polymerics? a. Springback b. Creep rupture c. Cold flow d. Creep forming MODULE 7 – TESTING, FAILURE ANALYSIS, STANDARDS, & INSPECTION Factors of safety are defined either in terms of the ultimate strength of a material or its yield strength. In other words, by the use of a suitable factor, the ultimate or yield strength is reduced in size to what is known as the design stress or safe working stress. Which factor of safety would be more appropriate for a material that will be subjected to repetitious, suddenly applied loads? Product liability court cases have risen sharply in recent years because of poor procedures in selecting materials for particular applications. Assuming that a knowledge of a material’s properties is a valid step in the selection process, cite two examples where such lack of knowledge could or did lead to failure or unsatisfactory performance. Make a sketch and fully dimension an Izod impact test specimen. Which agency publishes the Annual Book of standard test methods used worldwide for evaluation of materials? a. NASA b. NIST c. ASTM d. SPE

What is the prime purpose of selecting a composite material over material from the other family groups? MODULE 3 – STRUCTURE OF SOLID MATERIALS The ability of a material to exist in different space lattices is called a. Allotropic b. Crystalline c. Solvent d. Amorphous Amorphous metals develop their microstructure as a result of ___________. a. Dendrites b. Directional solidification c. Slip d. Extremely rapid cooling In an alloy, the material that dissolves the alloying element is the ___________. a. Solute b. Solvent c. Matrix d. Allotrope What is the coordination number (CN) for the fcc structure formed by ions of sodium and chlorine that is in the chemical compound NaCl (salt) ? a. 6 b. 8 c. 14 d. 16 What pressure is normally used in constructing a phase diagram? a. 100 psi b. Depends on material c. Ambient d. Normal atmospheric pressure What line on a binary diagram indicates the upper limit of the solid solution phase? a. Liquidus b. Eutectic c. Eutectoid d. Solidus What holds the atoms (ions) together in a compound such as NaCl are electrostatic forces between ___________. a. Atom and ion b. Covalent bonds c. Electrons and nuclei d. Neutrons Diffusion of atoms through a solid takes place by two main mechanisms. One is diffusion through vacancies in the atomic structure. Another method of diffusion is ___________. a. Cold b. APF c. Substitutional d. Interstitial Give a brief explanation of the Lever rule (P117) Grain boundaries ___________ movement of dislocations through a solid. a. Improve b. Inhibit c. Do not affect Iron can be alloyed with carbon because it is ___________. a. Crystalline b. Amorphous c. A mixture d. Allotropic Metals can be cooled only to crystalline solids. a. T (true) b. F (false) Sketch an fcc unit cell. Metals are classified as crystalline materials. Name one metal that is an amorphous solid and name at least one recent application in which its use is saving energy or providing greater strength and/or corrosion resistance. MODULE 4 – MECHANICAL PROPERTIES Give two examples of a mechanical property. a. Thermal resistance b. Wear resistance c. Hardness d. Strength Scissors used in the home cut material by concentrating forces that ultimately produce a certain type of stress within the material. Identify this stress. a. Bearing stress b. Shearing stress c. Compressive stress An aluminum rod 1 in. in diameter (E =10.4 x 106psi) experiences an elastic tensile strain of 0.0048 in./in. Calculate the stress in the rod. a. 49,920 ksi b. 49,920 psi c. 49,920 msi A 1-in.-diameter steel circular rod is subject to a tensile load that reduces its cross-sectional area to 0.64 in2. Express the rod’s ductility using a standard unit of measure. a. 18.5% b. 1.85% c. 18.5 d. (a) and (c) What term is used to describe the low-temperature creep of polymerics? a. Springback b. Creep rupture c. Cold flow d. Creep forming MODULE 7 – TESTING, FAILURE ANALYSIS, STANDARDS, & INSPECTION Factors of safety are defined either in terms of the ultimate strength of a material or its yield strength. In other words, by the use of a suitable factor, the ultimate or yield strength is reduced in size to what is known as the design stress or safe working stress. Which factor of safety would be more appropriate for a material that will be subjected to repetitious, suddenly applied loads? Product liability court cases have risen sharply in recent years because of poor procedures in selecting materials for particular applications. Assuming that a knowledge of a material’s properties is a valid step in the selection process, cite two examples where such lack of knowledge could or did lead to failure or unsatisfactory performance. Make a sketch and fully dimension an Izod impact test specimen. Which agency publishes the Annual Book of standard test methods used worldwide for evaluation of materials? a. NASA b. NIST c. ASTM d. SPE

info@checkyourstudy.com
Two loads in the circuit shown in Figure 2 can be described as follows: Load 1 absorbs an average of 8kW at a leading power factor of 0.80. Load 2 absorbs 20kVA at a lagging power factor of 0.60. a. Determine the power factor of the combined two loads in parallel. b. Determine the source current. c. If the frequency is 60Hz, find the value of the capacitor which, if placed in parallel with the two loads, would correct the power factor to 1.00.

Two loads in the circuit shown in Figure 2 can be described as follows: Load 1 absorbs an average of 8kW at a leading power factor of 0.80. Load 2 absorbs 20kVA at a lagging power factor of 0.60. a. Determine the power factor of the combined two loads in parallel. b. Determine the source current. c. If the frequency is 60Hz, find the value of the capacitor which, if placed in parallel with the two loads, would correct the power factor to 1.00.

A three phase four pole winding of the double layer type is to be installed on a 48 slot stator. The pitch of the stator windings is 5 / 6 and there are 10 turns per coil in the windings. All coils in each phase are connected in series and the three phases are connected in Δ. The flux per pole in the machine is 0.054 Wb and the speed of rotation of the magnetic field is 1800 RPMWhat is the pitch factor of this winding?

A three phase four pole winding of the double layer type is to be installed on a 48 slot stator. The pitch of the stator windings is 5 / 6 and there are 10 turns per coil in the windings. All coils in each phase are connected in series and the three phases are connected in Δ. The flux per pole in the machine is 0.054 Wb and the speed of rotation of the magnetic field is 1800 RPMWhat is the pitch factor of this winding?

The Classic Five-Part Structure 1. Introduce the topic to be argued. Establish its importance. 2. Provide background information so readers will be able to follow your discussion. 3. State your claim (your argumentative thesis) and develop your argument by making a logical appeal. Support your claims with facts, opinions, and examples. If appropriate, mix an emotional appeal or an appeal to authority with your logical appeals. 4. Acknowledge counterarguments and treat them with respect. Rebut these arguments. Reject their evidence or their logic or concede some validity and modify your claim accordingly. Be flexible; you might split the counterarguments and rebut them one at a time at different locations in the paper, or you might begin the paper with a counterargument, rebut it, and then move on to your own claim. 5. Conclude by summarizing the main points of your argument. Then remind readers of what you want them to believe or do. Give them something to remember. The Problem-Solution Structure I. There is a serious problem. A. The problem exists and is growing. (Provide support for argument.) B. The problem is serious. (Provide support.) C. Current methods cannot cope with the problem. (Provide support.) II. There is a solution to the problem. (Your claim goes here.) A. The solution is practical. (Provide support.) B. The solution is desirable. (Provide support.) C. We can implement the solution. (Provide support.) D. Alternate solutions are not as strong as the proposed solution. (Review – and reject – competing solutions.) In both cases, you know before you begin writing whether you will use an inductive (analytic) or deductive (synthetic) arrangement for your argument. The decision to move inductively or deductively is about strategy. Induction moves from support to a claim. Deduction moves from a claim to support – to particular facts, opinions, and examples. This is the preferred form for most writing in the humanities. You can position your claim at the beginning, middle, or end of your presentation. In the problem/solution structure, the claim is made only after the writer introduces a problem. With the five-part structure, you have more flexibility in positioning your claim. One factor that can help determine placement is the likelihood of your audience agreeing with you. When your audience is likely to be neutral or supportive, making your claim early on will not alienate readers (synthetic presentation). When your audience is likely to disagree, placing your thesis at the end of your presentation allows you time to build a consensus, step by step, until you reach your conclusion (analytical presentation).

The Classic Five-Part Structure 1. Introduce the topic to be argued. Establish its importance. 2. Provide background information so readers will be able to follow your discussion. 3. State your claim (your argumentative thesis) and develop your argument by making a logical appeal. Support your claims with facts, opinions, and examples. If appropriate, mix an emotional appeal or an appeal to authority with your logical appeals. 4. Acknowledge counterarguments and treat them with respect. Rebut these arguments. Reject their evidence or their logic or concede some validity and modify your claim accordingly. Be flexible; you might split the counterarguments and rebut them one at a time at different locations in the paper, or you might begin the paper with a counterargument, rebut it, and then move on to your own claim. 5. Conclude by summarizing the main points of your argument. Then remind readers of what you want them to believe or do. Give them something to remember. The Problem-Solution Structure I. There is a serious problem. A. The problem exists and is growing. (Provide support for argument.) B. The problem is serious. (Provide support.) C. Current methods cannot cope with the problem. (Provide support.) II. There is a solution to the problem. (Your claim goes here.) A. The solution is practical. (Provide support.) B. The solution is desirable. (Provide support.) C. We can implement the solution. (Provide support.) D. Alternate solutions are not as strong as the proposed solution. (Review – and reject – competing solutions.) In both cases, you know before you begin writing whether you will use an inductive (analytic) or deductive (synthetic) arrangement for your argument. The decision to move inductively or deductively is about strategy. Induction moves from support to a claim. Deduction moves from a claim to support – to particular facts, opinions, and examples. This is the preferred form for most writing in the humanities. You can position your claim at the beginning, middle, or end of your presentation. In the problem/solution structure, the claim is made only after the writer introduces a problem. With the five-part structure, you have more flexibility in positioning your claim. One factor that can help determine placement is the likelihood of your audience agreeing with you. When your audience is likely to be neutral or supportive, making your claim early on will not alienate readers (synthetic presentation). When your audience is likely to disagree, placing your thesis at the end of your presentation allows you time to build a consensus, step by step, until you reach your conclusion (analytical presentation).

info@checkyourstudy.com