Physical Science
11th Edition
ISBN: 9780077862626
Author: Bill Tillery, Stephanie J. Slater, Timothy F. Slater
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 3, Problem 5FFA
Use the equation for kinetic energy to prove that speed is more important than mass in bringing a speeding car to a stop.
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Check out a sample textbook solutionChapter 3 Solutions
Physical Science
Ch. 3 - According to the definition of mechanical work,...Ch. 3 -
2. The metric unit of a joule (J) is a unit of...Ch. 3 -
3. A N m/s is a unit of...Ch. 3 - Prob. 4ACCh. 3 - Prob. 5ACCh. 3 -
6. A power rating of 1 joule per s is known as a...Ch. 3 -
7. According to PE = mgh, gravitational potential...Ch. 3 -
8. Two cars have the same mass, but one is moving...Ch. 3 - Prob. 9ACCh. 3 -
10. Potential energy and kinetic energy are...
Ch. 3 -
11. Many forms of energy in use today can be...Ch. 3 -
12. In all of our energy uses, we find that...Ch. 3 - Prob. 13ACCh. 3 - Prob. 14ACCh. 3 - Prob. 15ACCh. 3 -
16. The amount of energy generated by...Ch. 3 - Prob. 17ACCh. 3 - Prob. 18ACCh. 3 -
19. A renewable energy source is...Ch. 3 - Prob. 20ACCh. 3 - Prob. 21ACCh. 3 -
22. Which quantity has the greatest influence on...Ch. 3 - Prob. 23ACCh. 3 -
24. Most all energy comes to and leaves Earth in...Ch. 3 -
25. A spring-loaded paper clamp exerts a force of...Ch. 3 -
26. The force exerted when doing work by lifting...Ch. 3 -
27. The work accomplished by lifting an object...Ch. 3 -
28. An iron cannonball and a bowling ball are...Ch. 3 -
29. Two students are poised to dive off...Ch. 3 -
30. A car is moving straight down a highway. What...Ch. 3 - 31. Two identical cars are moving straight down a...Ch. 3 - Prob. 32ACCh. 3 - Prob. 33ACCh. 3 -
34. Today, the basic problem with using solar...Ch. 3 - Prob. 35ACCh. 3 -
36. Petroleum is believed to have formed over...Ch. 3 -
1. How is work related to energy?
Ch. 3 -
2. What is the relationship between the work done...Ch. 3 - Does a person standing motionless in the aisle of...Ch. 3 - Prob. 4QFTCh. 3 -
5. Is a kWh a unit of work, energy, power, or...Ch. 3 -
6. If energy cannot be destroyed, why do some...Ch. 3 -
7. A spring damp exerts a force on a stack of...Ch. 3 -
8. Why are petroleum, natural gas, and coal...Ch. 3 -
9. From time to time, people claim to have...Ch. 3 -
10. Define a joule. What is the difference...Ch. 3 -
11. Compare the energy needed to raise a mass 10...Ch. 3 -
12. What happens to the kinetic energy of a...Ch. 3 -
l. Evaluate the requirement that something must...Ch. 3 -
2. What are the significant similarities and...Ch. 3 -
3. Whenever you do work on something, you give it...Ch. 3 -
4. Simple machines are useful because they are...Ch. 3 -
5. Use the equation for kinetic energy to prove...Ch. 3 -
6. Describe at least several examples of negative...Ch. 3 -
7. The forms of energy are the result of...Ch. 3 -
8. Most technological devices convert one of the...Ch. 3 -
9. Are there any contradictions to the law of...Ch. 3 -
1. How much work is done when a force of 800.0 N...Ch. 3 -
2. A force of 400.0 N is exerted on a 1,250 N car...Ch. 3 -
3. A 5.0 kg textbook is raised a distance of 30.0...Ch. 3 -
4. An electric hoist does 196,000 J of work in...Ch. 3 -
5. What is the horsepower of a 1,500.0 kg car...Ch. 3 -
6. (a) How many horsepower is a 250 W lightbulb?...Ch. 3 -
7. What is the kinetic energy of a 30–gram bullet...Ch. 3 -
8. How much work will be done by a 30–gram bullet...Ch. 3 -
9. A force of 50.0 lb is used to push a box 10.0...Ch. 3 -
10. (a) How much work is done in raising a 50.0...Ch. 3 -
11. What is the kinetic energy in J of a 60.0 g...Ch. 3 -
12. (a) What is the kinetic energy of a 1,500.0...Ch. 3 -
13. The driver of an 800.0 kg car decides to...Ch. 3 -
14. Compare the kinetic energy of an 800.0 kg car...Ch. 3 -
15. A 175.0 lb hiker is able to ascend a 1,980.0...Ch. 3 -
16. (a) How many seconds will it take a 10.0 hp...Ch. 3 -
17. A ball is dropped from 20.0 ft above the...Ch. 3 -
18. What is the velocity of a 60.0 kg jogger with...Ch. 3 -
19. A small sports car and a pickup truck start...Ch. 3 -
20. A 70.0 kg student runs up the stairs of a...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- Cite two examples in which a force is exerted on an object without doing any work on the object.arrow_forwardAnswer yes or no to each of the following questions. (a) Can an objectEarth system have kinetic energy and not gravitational potential energy? (b) Can it have gravitational potential energy and not kinetic energy? (c) Can it have both types of energy at the same moment? (d) Can it have neither?arrow_forwardGive an example of a situation in which there is a force and a displacement, but the force does no work. Explain why it does no work.arrow_forward
- A sled of mass 70 kg starts from rest and slides down a 10 incline 80 m long. It then travels for 20 m horizontally before starting back up an 8° incline. It travels 80 m along this incline before coming to rest. What is the magnitude of the net work done on the sled by friction?arrow_forwardA student expends 7.5 W of power in lifting a textbook 0.50 m in 1.0 s with a constant velocity. (a) How much work is done, and (b) how much does the book weigh (in newtons)? The answers to Confidence Exercises may be found at the back of the book.arrow_forwardCalculate the kinetic energies of (a) a 2000.0-kg automobile moving at 100.0 km/h; (b) an 80.-kg runner sprinting at 10. m/s; and (c) a 9.11031 -kg electron moving at 2.0107m/s .arrow_forward
- KEY TERMS 1. work (4.1) 2. joule 3. foot-pound 4. energy (4.2) 5. kinetic energy 6. potential energy 7. gravitational potential energy 8. conservation of total energy (4.3) 9. conservation of mechanical energy 10. power (4.4) 11. watt 12. horsepower 13. kilowatt-hour 14. alternative energy sources (4.6) 15. renewable energy sources For each of the following items, fill in the number of the appropriate Key Term from the preceding list. n. _____ Time rate of doing workarrow_forwardWhat average power is generated by a 70.0-kg mountain climber who climbs a summit of height 325 m in 95.0 min? (a) 39.1 W (b) 54.6 W (c) 25.5 W (d) 67.0 W (e) 88.4 Warrow_forwardEstimate the kinetic energy of a 90,000-ton aircraft carrier moving at a speed of at 30 knots. You will need to look up the definition of a nautical mile to use in converting the unit for speed, where 1 knot equals 1 nautical mile per hour.arrow_forward
- Two stones, one with twice the mass of the other, are thrown straight up and rise to the same height h. Compare their changes in gravitational potential energy (choose one): (a) They rise to the same height, so the stone with twice the mass has twice the change in gravitational potential energy. (b) They rise to the same height, so they have the same change in gravitational potential energy. (c) The answer depends on their speeds at height h.arrow_forwardAssume that the force of a bow on an arrow behaves like the spring force. In aiming the arrow, an archer pulls the bow back 50 cm and holds it in position with a force of 150 N. If the mass of the arrow is 50 g and the “spring” is massless, what is the speed of the arrow immediately after it leaves the bow?arrow_forwardA cyclist in a race must climb a 5 hill at a speed of 8 m/s. If the mass of the bike and the biker together is 80 kg, what must be the power output of the biker to achieve the goal?arrow_forward
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Kinetic Energy and Potential Energy; Author: Professor Dave explains;https://www.youtube.com/watch?v=g7u6pIfUVy4;License: Standard YouTube License, CC-BY