Question: How much more gravitational potential energy does a 1.0-kg hammer have when it is on a shelf 1.2 m high than when it is on

How much more gravitational potential energy does a 1.0-kg hammer have when it is on a shelf 1.2 m high than when it is on a shelf 0.90 m high?

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How much more gravitational potential energy does a 1.0-kg hammer when it is on a shelf 1.2 m high then when it is on a shelf 0.90 m high?

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