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To do work, this truck uses energy stored in chemical fuel and an electrical battery. how much total energy does this truck put out?
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Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?
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Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?
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Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.
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Explain what causes spring and neap tides, and identify the phases of the moon when these tides occu...
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