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Question
A toy elevator is raised from the ground floor to the second floor in 20 seconds. The power needed using 1000 J of work, isA) 20 W.
B) 50 W.
C) 100 W.
D) 1000 W.
E) 20,000 W.
Answer
This answer is hidden. It contains 1 characters.
Related questions
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If the speed of a bicycle is reduced to half before skidding to a stop, it will skid
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B) one-fourth as far.
C) one-half as far.
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Q:
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A) is more concentrated.
B) meets less resistance than the cannon on the ground.
C) acts over a longer distance.
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Q:
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Q:
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Q:
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A) 3 m/s.
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C) four times as much.
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Q:
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Q:
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A) less than half her weight.
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Q:
When a cannonball is fired from a cannon, which undergoes the greater acceleration?
A) the cannonball
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A) air resistance acting against the ball.
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Q:
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Q:
A fast-moving missile soaring overhead possesses
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