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How is the gravitational force related to the distance between two objects?
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A"car"initially"at"rest"experiences "a" constant"acceleration"along"a"horiz ontal" road."the"position"of"the"car"at"se veral" successive"equal"time"intervals"is" illustrated"here. between"which"adjacent"positions"is "the" change"in"kinetic"energy"of"the"car "the" greatest
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Physics, 23.06.2019 14:50, marbo1
When oxygen reacts with hydrogen, it has the capacity to release 29 kilojoules of energy. inside a fuel cell, oxygen reacts with hydrogen to produce 23 kilojoules of useful energy. the rest of the energy is lost as heat. what's the efficiency percentage of the fuel cell?
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