An object of mass m
falls from the top of a multistoreyed building of height and reaches the ground. Is any work being done by the object? If yes, by whom and how much? Please Answer in 20 word limit
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In 1820, a Danish physicist, Hans Christian Oersted, discovered that there was a relationship between electricity and magnetism. By setting up a compass through a wire carrying an electric current, Oersted showed that moving electrons can create a magnetic field.
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