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Physics, 14.07.2019 23:00 soulspiritsa
When an 81.0-kg adult uses a spiral staircase to climb to the second floor of his house, his gravitational potential energy increases by 2.25 103 j. by how much does the potential energy of a(n) 17.5-kg child increase when the child climbs a normal staircase to the second floor?
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When an 81.0-kg adult uses a spiral staircase to climb to the second floor of his house, his gravita...
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