A weight lifter holds 900 n about 200 lb over his head is
A weight lifter holds 900 N (about 200 lb) over his head. Is he doing work on the weights? Did he do any work on the weights? Explain. In general terms, how is energy defined?
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a weight lifter holds 900 n about 200 lb over his head is he doing work on the weights did he do any work on the
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