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Question
It is generally easier to push an object once it is moving than when you are getting it started. This is becauseA) sliding friction is zero.
B) sliding friction is less than static friction.
C) static friction is less than sliding friction.
D) static friction is zero.
Answer
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Related questions
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A change in motion requires a(n) ____________.
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The quantity mvr is an object's
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B) torque.
C) linear momentum.
D) angular momentum.
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A) 0.0 N
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Newton's law of universal gravitation is believed to be applicable
A) to the Milky Way only.
B) on Earth and the Moon only.
C) throughout the universe.
D) to the solar system only.
E) on Earth only.
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In the equation A = B/C, the A and B are said to be _______________ proportional.
A) directly
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Newton's third law of motion states that the force pair acting on different objects consists of two forces that
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Q:
______________ principle explains why objects float or sink in a fluid.
A) Newton's
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The buoyant force of an object is equal to the ______________ of the ______________ it displaces.
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A) 40 N
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A spacecraft in space keeps going at the same velocity, even without firing its rockets, in accordance with the _______________ law of motion.
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If an object has a constant velocity, then its acceleration is ______________.
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A projectile's vertical velocity component
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Q:
The magnitude of the acceleration of an object moving in a circle at constant speed is
A) inversely proportional to the speed squared.
B) inversely proportional to the speed.
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D) inversely proportional to the radius of the circle.
Q:
The direction of the acceleration of an object moving in a circle at constant speed is
A) changing, but pointing in a predictable direction.
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B) Normal to the plane of the circle
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A freely falling object
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Q:
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