Physics, 30.10.2020 19:30 majakvcvc77
A family is visiting the Statue of Liberty in New York City. One of the children accidentally drops her backpack from the top of the viewing platform which is 300 feet above the ground. At what height will the kinetic energy of the backpack be equal to it's potential energy?
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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 component of earth’s atmosphere exists entirely as a result of photosynthesis?
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How much hereditary information is contain in a human sex cell
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