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How would doubling the made of an object change the objects potential energy
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If 21.2 kcals of energy is released by this reaction, how many kj does the reaction release? (1 cal 4.184 j)
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A100-watt light bulb illuminates a solar cell. the electricity from the solar cell operates a water pump that delivers 1 watt of power. what is the efficiency of the system?
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What are two factors that cause changes in the motion of surface currents like the Gulf Stream?
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