A weightlifter bench-presses a 1300 kg barbell from his


A weightlifter bench-presses a 130.0 kg barbell from his chest to a height equal the length of his arms 0.850 m. How much work does he do?

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What is the potential energy of the barbell relative to the weightlifter\'s chest after he lifts the barbell?

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Physics: A weightlifter bench-presses a 1300 kg barbell from his
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