Created by StemPy LabA planet has times the Earth's mass and the same radius. How many times the Earth's escape speed is its escape speed?
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← A body weighs 72 N on the Earth's surface. At what height above the surface, in kilometres, would it weigh 8 N? Take R = 6400 km.A 125 kg space probe is hauled from the ground to a point one Earth radius (6400 km) above it, ending at rest. How many gigajoules (10⁹ J) of work does this take? Take g = 10 m/s² at the surface. →
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