What energy must be spent to lift a body weighing 1 kg from the Earth and remove it to infinity? What mass should be lifted from the Earth’s surface to a height of 1 m in order to expend the same energy?
The work sought is finite and amounts to 6.3 * 10 ^ 7 J. The same work will be spent when lifting a load weighing 6372.5 tons to a height of 1 m.
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