How much mass is lost during a reaction in which 1.7 × 108 MeV of energy is released? (c = 3.0 × 108 m/s,1 eV = 1.6 × 10-19 J)

A) 1.8 × 10-8 kg B) 5.7 × 10-9 kg C) 1.9 × 10-17 kg D) 3.0 × 10-22 kg A) 1.8 × 10-8 kg B) 5.7 × 10-9 kg C) 1.9 × 10-17 kg D) 3.0 × 10-22 kg

Exam 29: Relativity

You are riding in a spaceship that has no windows,radios,or other means for you to observe or measure what is outside.You wish to determine if the ship is stopped or moving at constant velocity.How can you do this?

(Multiple Choice)

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Question 81

How much mass is lost during a reaction in which 1.7 × 10⁸ MeV of energy is released? (c = 3.0 × 10⁸ m/s,1 eV = 1.6 × 10^-19 J)

(Multiple Choice)

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Question 82

A particle is moving at 0.86c.By what magnitude percentage is the Newtonian expression for momentum in error? (The percentage error is the difference between the erroneous and correct expressions,relative the correct one).

(Multiple Choice)

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Question 83

If you were in a spaceship traveling close to the speed of light with respect to Earth,you would notice that

(Multiple Choice)

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Question 84

When a proton is traveling at 0.80c,what is the ratio of its kinetic energy to its rest energy?

(Multiple Choice)

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Question 85

If a particle has a total energy that is 5.00 times its rest energy,the speed of the particle is closest to which one of the following values?

(Multiple Choice)

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Question 86

Two satellites with equal rest masses of 100 kg are traveling toward each other in deep space.One is traveling at 0.650c and the other at 0.850c.The satellites collide and somehow manage to stick together.What is the rest mass of the combined object after the collision?

(Multiple Choice)

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Question 87

The special theory of relativity predicts that there is an upper limit to the speed of an object.It therefore follows that there is also an upper limit on which of the following properties of the object? (There could be more than one correct choice. )

(Multiple Choice)

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Question 88

Astronaut Rob leaves Earth in a spaceship at a speed of 0.960c relative to an observer on Earth.Rob's destination is a star system 14.4 light-years away (one light-year is the distance light travels in one year).Relative to a frame of reference that is fixed with respect to Earth,how long does it take Rob to complete the trip?

(Multiple Choice)

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Question 89

Astronaut Sarah leaves Earth in a spaceship at a speed of 0.280c relative to Earth.Sarah's destination is a star system 12.5 light-years away (one light-year is the distance light travels in one year).According to Sarah,how far did she travel during the trip?

(Multiple Choice)

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Question 90

A pion is an unstable particle that has a mean lifetime of 2.55 × 10^-8 s.This is the time interval between its creation in a nuclear process and its extinction into decay products,as measured in a frame of reference at rest with respect to the pion.An average pion is traveling at 0.230c relative to Earth.How far does it travel in its lifetime,relative to Earth?

(Multiple Choice)

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Question 91

A 1.0-kg aluminum ingot is heated from 0°C to 100°C.By what amount does its mass change? The specific heat of aluminum is 900 J/kg ∙ K.(c = 3.0 × 10⁸ m/s)

(Multiple Choice)

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Question 92

As shown in the figure,the captain of spaceship A observes spaceship E escaping with a relative velocity of 0.35c.A missile M is fired from ship A directly toward ship E,with a velocity of 0.76c relative to ship A.What does the captain of ship E measure for the velocity of the missile M?

(Multiple Choice)

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Question 93

A proton,which has a mass of 1.67 × 10^-27, is moving at 0.80c relative to the laboratory.What does a physicist in that lab measure for its momentum? (c = 3.0 × 10⁸ m/s)

(Multiple Choice)

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Question 94

Two spaceships approach Earth from the same direction.One has a speed of 0.21c and the other a speed of 0.34c,both relative to Earth.What is the speed of one spaceship relative to the other?

(Multiple Choice)

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Question 95

A 30-year-old astronaut goes off on a long-term mission in a spacecraft that travels at speeds close to that of light.The mission lasts exactly 20 years as measured on Earth.Biologically speaking,at the end of the mission,the astronaut's age would be

(Multiple Choice)

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Question 96

The figure shows a right-angled construction frame ABC.When measured at rest,it has dimensions as follows: AB = 26.0 m,AC = 10.0 m,and BC = 24.0 m.This frame is now given a new velocity of 0.760c,relative to Earth,in a direction parallel to AC.How long is part AC of this frame with the new velocity as measured by Earth-based engineers?

(Multiple Choice)

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Question 97

If the kinetic energy of a particle is 3.00 times its rest energy,the speed of the particle is closest to which of the following values?

(Multiple Choice)

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Question 98

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Exam 29: Relativity

You are riding in a spaceship that has no windows,radios,or other means for you to observe or measure what is outside.You wish to determine if the ship is stopped or moving at constant velocity.How can you do this?

How much mass is lost during a reaction in which 1.7 × 108 MeV of energy is released? (c = 3.0 × 108 m/s,1 eV = 1.6 × 10-19 J)

A particle is moving at 0.86c.By what magnitude percentage is the Newtonian expression for momentum in error? (The percentage error is the difference between the erroneous and correct expressions,relative the correct one).

If you were in a spaceship traveling close to the speed of light with respect to Earth,you would notice that

When a proton is traveling at 0.80c,what is the ratio of its kinetic energy to its rest energy?

If a particle has a total energy that is 5.00 times its rest energy,the speed of the particle is closest to which one of the following values?

Two satellites with equal rest masses of 100 kg are traveling toward each other in deep space.One is traveling at 0.650c and the other at 0.850c.The satellites collide and somehow manage to stick together.What is the rest mass of the combined object after the collision?

The special theory of relativity predicts that there is an upper limit to the speed of an object.It therefore follows that there is also an upper limit on which of the following properties of the object? (There could be more than one correct choice. )

Astronaut Sarah leaves Earth in a spaceship at a speed of 0.280c relative to Earth.Sarah's destination is a star system 12.5 light-years away (one light-year is the distance light travels in one year).According to Sarah,how far did she travel during the trip?

A 1.0-kg aluminum ingot is heated from 0°C to 100°C.By what amount does its mass change? The specific heat of aluminum is 900 J/kg ∙ K.(c = 3.0 × 108 m/s)

As shown in the figure,the captain of spaceship A observes spaceship E escaping with a relative velocity of 0.35c.A missile M is fired from ship A directly toward ship E,with a velocity of 0.76c relative to ship A.What does the captain of ship E measure for the velocity of the missile M?

A proton,which has a mass of 1.67 × 10-27, is moving at 0.80c relative to the laboratory.What does a physicist in that lab measure for its momentum? (c = 3.0 × 108 m/s)

Two spaceships approach Earth from the same direction.One has a speed of 0.21c and the other a speed of 0.34c,both relative to Earth.What is the speed of one spaceship relative to the other?

A 30-year-old astronaut goes off on a long-term mission in a spacecraft that travels at speeds close to that of light.The mission lasts exactly 20 years as measured on Earth.Biologically speaking,at the end of the mission,the astronaut's age would be

If the kinetic energy of a particle is 3.00 times its rest energy,the speed of the particle is closest to which of the following values?

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How much mass is lost during a reaction in which 1.7 × 10⁸ MeV of energy is released? (c = 3.0 × 10⁸ m/s,1 eV = 1.6 × 10^-19 J)

A 1.0-kg aluminum ingot is heated from 0°C to 100°C.By what amount does its mass change? The specific heat of aluminum is 900 J/kg ∙ K.(c = 3.0 × 10⁸ m/s)

A proton,which has a mass of 1.67 × 10^-27, is moving at 0.80c relative to the laboratory.What does a physicist in that lab measure for its momentum? (c = 3.0 × 10⁸ m/s)