Connect with LearnSmart for Krauskopf: The Physical Universe, 16e
16th Edition
ISBN: 9781259663895
Author: KRAUSKOPF, Konrad B.
Publisher: Mcgraw-hill Higher Education (us)
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 3, Problem 15MC
It is not true that
- a. light is affected by gravity
- b. the mass of a moving object depends upon its speed
- c. the maximum speed anything can have is the
speed of light - d. momentum is a form of energy
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
If the speed of a particle is doubled, what happens to its kinetic energy?
a. It will be half.
b. It will be square root of twice as large.
c. It will be four times bigger.
d. It does not change
e. It will be twice as big.
In an attempt to reduce the extraordinarily long travel times for voyaging to distant stars, some people have suggested traveling at close to the speed of light. Suppose you wish to visit the red giant star Betelgeuse, which is 430 ly away, and that you want your 20,000 kg rocket to move so fast that you age only 20 years during the round trip.a. How fast must the rocket travel relative to earth?b. How much energy is needed to accelerate the rocket to this speed?c. How many times larger is this energy than the total energy used by the United States in a typical year, roughly 1.0 x 1020 J?
E2:: need help. This is all the information I was given. If I needed I would look it up online
Chapter 3 Solutions
Connect with LearnSmart for Krauskopf: The Physical Universe, 16e
Ch. 3 - Which of the following is not a unit of work? a....Ch. 3 - An object at rest may have a. velocity b. momentum...Ch. 3 - A moving object must have which one or more of the...Ch. 3 - When the momentum of a moving object is increased,...Ch. 3 - The total amount of energy (including the rest...Ch. 3 - When the speed of a moving object is halved, a....Ch. 3 - Two balls, one of mass 5 kg and the other of mass...Ch. 3 - A bomb dropped from an airplane explodes in...Ch. 3 - The operation of a rocket is based upon a. pushing...Ch. 3 - A spinning skater whose arms are at her sides then...
Ch. 3 - Prob. 11MCCh. 3 - The formula 12 mv2 for kinetic energy a. is the...Ch. 3 - A spacecraft has left the earth and is moving...Ch. 3 - The upper limit to the speed of an object with...Ch. 3 - It is not true that a. light is affected by...Ch. 3 - Albert Einstein did not discover that a. the...Ch. 3 - The work done in holding a 50-kg object at a...Ch. 3 - The work done in lifting 30 kg of bricks to a...Ch. 3 - A total of 4900 J is used to lift a 50-kg mass....Ch. 3 - The work a 300-W electric grinder can do in 5.0...Ch. 3 - A 150-kg yak has an average power output of 120 W....Ch. 3 - A 40-kg boy runs up a flight of stairs 4 m high in...Ch. 3 - Car A has a mass of 1000 kg and is moving at 60...Ch. 3 - A 1-kg object has a potential energy of 1 J...Ch. 3 - A 1-kg object has kinetic energy of 1 J when its...Ch. 3 - The 2-kg blade of an ax is moving at 60 m/s when...Ch. 3 - The highest MA that can be obtained by a system of...Ch. 3 - A machine has a MA of 6.0. The work input needed...Ch. 3 - A person uses a force of 300 N to pry up one end...Ch. 3 - A 1-kg ball is thrown in the air. When it is 10 m...Ch. 3 - A 10,000-kg freight car moving at 2 m/s collides...Ch. 3 - A 30-kg girl and a 25-kg boy are standing on...Ch. 3 - An object has a rest energy of 1 J when its mass...Ch. 3 - The smallest part of the total energy of the ball...Ch. 3 - The lightest particle in an atom is an electron,...Ch. 3 - A person holds a 10-kg package 1.2 m above the...Ch. 3 - Under what circumstances (if any) is no work done...Ch. 3 - The sun exerts a gravitational force of 4.0 1028...Ch. 3 - A crate is pushed across a horizontal floor at...Ch. 3 - A total of 490 J of work is needed to lift a body...Ch. 3 - A woman eats a cupcake and proposes to work off...Ch. 3 - The acceleration of gravity on the surface of Mars...Ch. 3 - The kilowatt-hour is a unit of what physical...Ch. 3 - The motor of a boat develops 60 kW when the boats...Ch. 3 - How much power must the legs of a 70-kg man...Ch. 3 - A weightlifter raises a 70-kg barbell from the...Ch. 3 - An escalator 14 m long is carrying a 70-kg person...Ch. 3 - A 700-kg horse whose power output is 1.0 hp is...Ch. 3 - A persons metabolic processes can usually operate...Ch. 3 - A crane whose motor has a power input of 5.0 kW...Ch. 3 - A total of 104 kg of water per second flows over a...Ch. 3 - Which of these energies might correspond to the KE...Ch. 3 - What is the speed of an 800-kg car whose KE is 250...Ch. 3 - A moving object whose initial KE is 10 J is...Ch. 3 - Is the work needed to bring a cars speed from 0 to...Ch. 3 - A 1-kg salmon is hooked by a fisherman and it...Ch. 3 - Prob. 22ECh. 3 - How long will it take a 1000-kg car with a power...Ch. 3 - Does every moving body possess kinetic energy?...Ch. 3 - As we will learn in Chap. 6, electric charges of...Ch. 3 - A 60-kg woman jumps off a wall 80 cm high and...Ch. 3 - Why does a nail become hot when it is hammered...Ch. 3 - A 3-kg stone is dropped from a height of 100 m....Ch. 3 - Prob. 29ECh. 3 - Prob. 30ECh. 3 - A ball is dropped from a height of 1 m and loses...Ch. 3 - A person sitting under a coconut palm is struck by...Ch. 3 - A skier is sliding downhill at 8 m/s when she...Ch. 3 - A force of 10 N is used to lift a 600-g ball from...Ch. 3 - A person uses a force of 49 N to raise a 30-kg...Ch. 3 - Prob. 36ECh. 3 - The human forearm is a class III lever. Find the...Ch. 3 - A ramp 20 m long slopes down 1.2 m to the edge of...Ch. 3 - In an effort to lose weight, a person runs 5 km...Ch. 3 - An 80-kg crate is raised 2 m from the ground by a...Ch. 3 - An 800-kg car coasts down a hill 40 m high with...Ch. 3 - (a) When an object at rest explodes into two parts...Ch. 3 - A golf ball and a Ping-Pong ball are dropped in a...Ch. 3 - Is it possible for an object to have more kinetic...Ch. 3 - What happens to the momentum of a car when it...Ch. 3 - The speed of an airplane doubles in flight. (a)...Ch. 3 - When the kinetic energy of an object is doubled,...Ch. 3 - What, if anything, happens to the speed of a...Ch. 3 - A ball of mass m rolling on a smooth surface...Ch. 3 - A railway car is at rest on a frictionless track....Ch. 3 - An empty dump truck coasts freely with its engine...Ch. 3 - A boy throws a 4-kg pumpkin at 8 m/s to a 40-kg...Ch. 3 - A 30-kg girl who is running at 3 m/s jumps on a...Ch. 3 - A 70-kg man and a 50-kg woman are in a 60-kg boat...Ch. 3 - The 176-g head of a golf club is moving at 45 m/s...Ch. 3 - A 40-kg skater moving at 4 m/s overtakes a 60-kg...Ch. 3 - The two skaters of Exercise 56 are moving in...Ch. 3 - A 1000-kg car moving east at 80 km/h collides...Ch. 3 - As the polar ice caps melt, the length of the day...Ch. 3 - All helicopters have two rotors. Some have both...Ch. 3 - The earthquake that caused the Indian Ocean...Ch. 3 - What are the two postulates from which Einstein...Ch. 3 - The theory of relativity predicts a variety of...Ch. 3 - What physical quantity will all observers always...Ch. 3 - The length of a rod is measured by several...Ch. 3 - Under what circumstances does it become...Ch. 3 - Why is it impossible for an object to move faster...Ch. 3 - The potential energy of a golf ball in a hole is...Ch. 3 - What is the effect on the law of conservation of...Ch. 3 - A certain walking person uses energy at an average...Ch. 3 - One kilogram of water at 0C contains 335 kJ of...Ch. 3 - When 1 g of gasoline is burned in an engine, about...Ch. 3 - Approximately 5.4 106 J of chemical energy is...Ch. 3 - Approximately 4 109 kg of matter is converted...
Knowledge Booster
Learn more about
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
- Rank the following quantities of energy from largest to smallest. State if any are equal. (a) the absolute value of the average potential energy of the SunEarth system (b) the average kinetic energy of the Earth in its orbital motion relative to the Sun (c) the absolute value of the total energy of the SunEarth systemarrow_forward(a) Calculate the speed of a 1.00- g particle of dust that has the same momentum as a proton moving at 0.999c. (b) What does the small speed tell us about the mass of a proton compared to even a tiny amount of macroscopic matter?arrow_forward(a) Calculate for a proton that has a momentum of (b) What is its speed? Such protons form a rare component of cosmic radiation with uncertain origins.arrow_forward
- An astronaut wishes to visit the Andromeda galaxy, making a one-way trip that will take 30.0 years in the space-ships frame of reference. Assume the galaxy is 2.00 million light-years away and his speed is constant. (a) How fast must he travel relative to Earth? (b) What will be the kinetic energy of his spacecraft, which has mass of 1.00 106 kg? (c) What is the cost of this energy if it is purchased at a typical consumer price for electric energy, 13.0 cents per kWh? The following approximation will prove useful: 11+x1x2forx1arrow_forwardA supernova explosion of a 2.001031 kg star produces 1.001044 J of energy. (a) How many kilograms of mass are converted to energy in the explosion? (b) What is the ratio m/m of mass destroyed to the original mass of the star?arrow_forwardSpace debris left from old satellites and their launchers is becoming a hazard to other satellites. (a) Calculate the speed of a satellite in an orbit 900 km above Earth’s surface. (b) Suppose a loose rivet is in an orbit of the same radius that intersects the satellite’s orbit at an angle of 90 . What is the velocity of the rivet relative to the satellite just before striking it? (c) If its mass is 0.500 g, and it comes to rest inside the satellite, how much energy in joules is generated by the collision? (Assume the satellite’s velocity does not change appreciably, because it mass is much greater than the rivets’s.)arrow_forward
- What is the velocity of an electron that has a momentum of 3.041021kgm/s ? Note that you must calculate the velocity to at least four digits to see the difference from c.arrow_forwardUnreasonable Results (a) Find the value of for the following situation. An astronaut measures the length of her spaceship to be 25.0 m, while an Earth-bound observer measures it to be 100 m. (b) What is unreasonable about this result? (c) Which assumptions are unreasonable or inconsistent?arrow_forwardThere is approximately of energy available from fusion of hydrogen in the world's oceans. (a) If of this energy were utilized, what would be the decrease in mass of the oceans? (b) How great a volume of water does this correspond to? (c) Comment on whether this is a significant fraction of the total mass of the oceans.arrow_forward
- Protons in an accelerator at the Fermi National Laboratory near Chicago are accelerated to a total energy that is 400 times their rest energy. (a) What is the speed of these protons in terms of c? (b) What is their kinetic energy in MeV?arrow_forward(a) Calculate the speed of a particle of dust that has the same momentum as a proton moving at 0.999c. (b) What does the small speed tell us about the mass of a proton compared to even a tiny amount of macroscopic matter?arrow_forwardAn observer in a coasting spacecraft moves toward a mirror at speed v relative to the reference frame labeled S in Figure P39.85. The mirror is stationary with respect to S. A light pulse emitted by the spacecraft travels toward the mirror and is reflected back to the spacecraft. The spacecraft is a distance d from the mirror (as measured by observers in S) at the moment the light pulse leaves the spacecraft. What is the total travel time of the pulse as measured by observers in (a) the S frame and (b) the spacecraft?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Physics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
College PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
College PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax College
Physics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
Physics for Scientists and Engineers with Modern ...
Physics
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Kinetic Energy and Potential Energy; Author: Professor Dave explains;https://www.youtube.com/watch?v=g7u6pIfUVy4;License: Standard YouTube License, CC-BY