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Superman is standing on Earth and throws the rock vertically upwards so fast that it reaches the Moon. What is the minimal initial velocity of

Superman is standing on Earth and throws the rock vertically upwards so fast that it reaches the Moon. What is the minimal initial velocity of the rock? Distance between the Earth and the Moon is 384,400,000 meters center to center. Radius of the Earth is 6,378,140 m Radius of the Moon is 1,737,100 m

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