A) has the units of mass times acceleration. B) has magnitude and direction. C) is a scalar quantity. D) none of these A) has the units of mass times acceleration. B) has magnitude and direction. C) is a scalar quantity. D) none of these

The variables m1 and m2 that appear in the equation F = Gm1m2/r2 are

A) the straight-line distance between the centers of each object. B) the rate at which each object is moving. C) the mass of each object. D) the diameter of each object. A) the straight-line distance between the centers of each object. B) the rate at which each object is moving. C) the mass of each object. D) the diameter of each object.

Exam 3: Force and Motion

Two carts (A's mass = 4.5 kg and B's mass = 1.5 kg)are held against a strong,compressed spring.The carts are released simultaneously,and B moves off to the right with a speed of 2.0 m/s.What is A's initial velocity?

(Short Answer)

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Question 21

What is the purpose of having automobile air bags?

(Short Answer)

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Question 22

The natural tendency of an object to remain at rest or in uniform straight-line motion is called ______________.

(Short Answer)

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Question 23

The gravitational pull of Earth acting on an object is zero when the object

(Multiple Choice)

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Question 24

The acceleration of an object with a zero net force acting on it is ______________.

(Short Answer)

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Question 25

A student stands on a chair.The forces acting on her or him are supplied by gravity acting downward and by the ______________ acting upward.

(Short Answer)

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Question 26

A change in motion requires a(n)______________.

(Short Answer)

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Question 27

Newton's third law of motion states that whenever one object exerts a force upon a second object,the second object exerts a(n) and force upon the first object.

(Short Answer)

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Question 28

A 6.0-kg object exerts a force of 8.0 N on a 2.0-kg object.What is the magnitude of the force on the 6.0-kg object?

(Short Answer)

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Question 29

For Newton's third law,the action and reaction forces are equal in magnitude and ______________ in direction.

(Short Answer)

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Question 30

In Newton's law of universal gravitation,F = Gm₁m₂/r² for uniform objects,the quantity r is______________.

(Short Answer)

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Question 31

If a person weighs 108 lb on Earth,that person's weight on the Moon would be

(Multiple Choice)

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Question 32

An astronaut on the Moon has the same mass as when on Earth,but has a different ______________.

(Short Answer)

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Question 33

The linear momentum of a 100.0 kg object moving around a 30.0 m circle at a constant speed of 2.20 m/s is

(Multiple Choice)

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Question 34

The acceleration produced by an unbalanced force acting on an object is

(Multiple Choice)

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Question 35

The law of conservation of angular momentum states that the angular momentum of an object remains constant if there are no external ______________ torques acting.

(Short Answer)

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Question 36

Linear momentum

(Multiple Choice)

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Question 37

The essentials of the first law of motion were initially developed by

(Multiple Choice)

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Question 38

The angular momentum of a 100.0 kg object moving around a 75.0 m circle at a constant speed of 3.90 m/s is

(Multiple Choice)

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Question 39

The variables m₁ and m₂ that appear in the equation F = Gm₁m₂/r² are

(Multiple Choice)

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Question 40

Showing 21 - 40 of 105

Exam 3: Force and Motion

Two carts (A's mass = 4.5 kg and B's mass = 1.5 kg)are held against a strong,compressed spring.The carts are released simultaneously,and B moves off to the right with a speed of 2.0 m/s.What is A's initial velocity?

What is the purpose of having automobile air bags?

The natural tendency of an object to remain at rest or in uniform straight-line motion is called ______________.

The gravitational pull of Earth acting on an object is zero when the object

The acceleration of an object with a zero net force acting on it is ______________.

A student stands on a chair.The forces acting on her or him are supplied by gravity acting downward and by the ______________ acting upward.

A change in motion requires a(n)______________.

Newton's third law of motion states that whenever one object exerts a force upon a second object,the second object exerts a(n)______________ and ______________ force upon the first object.

A 6.0-kg object exerts a force of 8.0 N on a 2.0-kg object.What is the magnitude of the force on the 6.0-kg object?

For Newton's third law,the action and reaction forces are equal in magnitude and ______________ in direction.

In Newton's law of universal gravitation,F = Gm1m2/r2 for uniform objects,the quantity r is______________.

If a person weighs 108 lb on Earth,that person's weight on the Moon would be

An astronaut on the Moon has the same mass as when on Earth,but has a different ______________.

The linear momentum of a 100.0 kg object moving around a 30.0 m circle at a constant speed of 2.20 m/s is

The acceleration produced by an unbalanced force acting on an object is

The law of conservation of angular momentum states that the angular momentum of an object remains constant if there are no external ______________ torques acting.

Linear momentum

The essentials of the first law of motion were initially developed by

The angular momentum of a 100.0 kg object moving around a 75.0 m circle at a constant speed of 3.90 m/s is

The variables m1 and m2 that appear in the equation F = Gm1m2/r2 are

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Newton's third law of motion states that whenever one object exerts a force upon a second object,the second object exerts a(n) and force upon the first object.

In Newton's law of universal gravitation,F = Gm₁m₂/r² for uniform objects,the quantity r is______________.

The variables m₁ and m₂ that appear in the equation F = Gm₁m₂/r² are