PHYSICAL SCIENCE (LCPO)12th EditionTillery Publisher: MCGISBN: 9781265774660
PHYSICAL SCIENCE (LCPO)
Solutions for PHYSICAL SCIENCE (LCPO)
Problem 1AC:
According to the definition of mechanical work, pushing on a rock accomplishes no work unless there...Problem 2AC:
2. The metric unit of a joule (J) is a unit of _
a. potential energy.
b. work.
c. kinetic...Problem 6AC:
6. A power rating of 1 joule per s is known as a _
a. watt.
b. newton.
c. joule.
d. horsepower.
Problem 7AC:
7. According to PE = mgh, gravitational potential energy is the same tiling as _
a. exerting a...Problem 8AC:
8. Two cars have the same mass, but one is moving three times as fast as the other is. How much...Problem 10AC:
10. Potential energy and kinetic energy are created when work is done to change a position (PE) or...Problem 12AC:
12. In all of our energy uses, we find that _
a. the energy used is consumed.
b. some forms of...Problem 16AC:
16. The amount of energy generated by hydroelectric plants in the United States as a percentage of...Problem 22AC:
22. Which quantity has the greatest influence on the amount of kinetic energy that a large truck...Problem 24AC:
24. Most all energy comes to and leaves Earth in the form of _
a. nuclear energy.
b. chemical...Problem 25AC:
25. A spring-loaded paper clamp exerts a force of 2 N on 10 sheets of paper it is holding tightly...Problem 26AC:
26. The force exerted when doing work by lifting a book bag against gravity is measured in units of...Problem 27AC:
27. The work accomplished by lifting an object against gravity is measured in units of...Problem 28AC:
28. An iron cannonball and a bowling ball are dropped at the same time from the top of a building....Problem 29AC:
29. Two students are poised to dive off equal-height diving towers into a
swimming pool below....Problem 30AC:
30. A car is moving straight down a highway. What factor has the greatest influence on how much...Problem 31AC:
31. Two identical cars are moving straight down a highway under identical conditions, except car B...Problem 34AC:
34. Today, the basic problem with using solar cells as a major source of electricity...Problem 36AC:
36. Petroleum is believed to have formed over time from buried _
a. pine trees.
b. plants in a...Problem 1QFT:
1. How is work related to energy?
Problem 2QFT:
2. What is the relationship between the work done while moving a book to a higher bookshelf and the...Problem 3QFT:
Does a person standing motionless in the aisle of a moving bus have kinetic energy? Explain.Problem 7QFT:
7. A spring damp exerts a force on a stack of papers it is holding together. Is the spring clamp...Problem 9QFT:
9. From time to time, people claim to have invented a machine that will run forever without energy...Problem 10QFT:
10. Define a joule. What is the difference between a joule of work and a joule of energy?
Problem 11QFT:
11. Compare the energy needed to raise a mass 10 m on Earth to the energy needed to raise the same...Problem 12QFT:
12. What happens to the kinetic energy of a falling book when the book hits the floor?
Problem 1FFA:
l. Evaluate the requirement that something must move whenever work is done. Why is this a...Problem 3FFA:
3. Whenever you do work on something, you give it energy. Analyze how you would know for sure that...Problem 4FFA:
4. Simple machines are useful because they are able to trade force for distance moved. Describe a...Problem 5FFA:
5. Use the equation for kinetic energy to prove that speed is more important than mass in bringing...Problem 6FFA:
6. Describe at least several examples of negative potential energy and how each shows a clear...Problem 7FFA:
7. The forms of energy are the result of fundamental forces–gravitational, electromagnetic, and...Problem 8FFA:
8. Most technological devices convert one of the five forms of energy into another. Try to think of...Problem 9FFA:
9. Are there any contradictions to the law of conservation of energy in any area of science?
Problem 1PEA:
A force of 200 N is needed to push a table across a level classroom floor for a distance of 3 m. How...Problem 3PEA:
How much work is done in raising a 10.0 kg backpack from the floor to a shelf 1.5 m above the floor?Problem 1PEB:
1. How much work is done when a force of 800.0 N is exerted while pushing a crate across a level...Problem 2PEB:
2. A force of 400.0 N is exerted on a 1,250 N car while moving it a distance of 3.0 m. How much...Problem 3PEB:
3. A 5.0 kg textbook is raised a distance of 30.0 cm as a student prepares to leave for school. How...Problem 4PEB:
4. An electric hoist does 196,000 J of work in raising a 250.0 kg load. How high was the load...Problem 5PEB:
5. What is the horsepower of a 1,500.0 kg car that can go to the top of a 360.0 m high hill in...Problem 9PEB:
9. A force of 50.0 lb is used to push a box 10.0 ft across a level floor. (a) How much work was...Problem 10PEB:
10. (a) How much work is done in raising a 50.0 kg crate a distance of 1.5 m above a storeroom...Problem 11PEB:
11. What is the kinetic energy in J of a 60.0 g tennis ball approaching a tennis racket at 20.0...Problem 12PEB:
12. (a) What is the kinetic energy of a 1,500.0 kg car with a velocity of 72.0 km/h? (b) How much...Problem 13PEB:
13. The driver of an 800.0 kg car decides to double the speed from 20.0 m/s to 40.0 m/s. What...Problem 14PEB:
14. Compare the kinetic energy of an 800.0 kg car moving at 20.0 m/s to the kinetic energy of a...Problem 15PEB:
15. A 175.0 lb hiker is able to ascend a 1,980.0 ft high slope in 1 hour 45 minutes. (a) How much...Problem 16PEB:
16. (a) How many seconds will it take a 10.0 hp motor to lift a 2,000.0 lb elevator a distance of...Problem 17PEB:
17. A ball is dropped from 20.0 ft above the ground. (a) At what height is one-half of its energy...Browse All Chapters of This Textbook
Chapter 1 - What Is Science?Chapter 2 - MotionChapter 3 - EnergyChapter 4 - Heat And TemperatureChapter 5 - Wave Motions And SoundChapter 6 - ElectricityChapter 7 - LightChapter 8 - Atoms And Periodic PropertiesChapter 9 - Chemical BondsChapter 10 - Chemical Reactions
Chapter 11 - Water And SolutionsChapter 12 - Organic ChemistryChapter 13 - Nuclear ReactionsChapter 14 - The UniverseChapter 15 - The Solar SystemChapter 16 - Earth In SpaceChapter 17 - Rocks And MineralsChapter 18 - Plate TectonicsChapter 19 - Building Earth’s SurfaceChapter 20 - Shaping Earth’s SurfaceChapter 21 - Geologic TimeChapter 22 - The Atmosphere Of EarthChapter 23 - Weather And ClimateChapter 24 - Earth’s Waters
Sample Solutions for this Textbook
We offer sample solutions for PHYSICAL SCIENCE (LCPO) homework problems. See examples below:
Chapter 1, Problem 1ACChapter 2, Problem 1ACChapter 3, Problem 1ACChapter 4, Problem 1ACReason for the correct options: The term vibration is used for the motion of a particle which...Chapter 6, Problem 1ACChapter 7, Problem 1ACIntroduction: J.J Thomson performed an experiment of cathode rays and observed the green...Introduction: The chemical substances which are composed of two or more atoms of different elements...
Introduction: There are a number of compounds in this world. In order to simplify the name of each...Chapter 11, Problem 1ACIntroduction: A class of compounds containing only carbon and hydrogen is known as hydrocarbons....Introduction: Radioactivity refers to the disintegration or the breaking of the unstable nucleus of...Chapter 14, Problem 1ACChapter 15, Problem 1ACChapter 16, Problem 1ACChapter 17, Problem 1ACChapter 18, Problem 1ACChapter 19, Problem 1ACChapter 20, Problem 1ACChapter 21, Problem 1ACChapter 22, Problem 1ACChapter 23, Problem 1ACChapter 24, Problem 1AC
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