A satellite revolves around planet P in a circular orbit above the planet’s surface

PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

A satellite revolves around planet P in a circular orbit 300 km300\,\text{km} above the planet’s surface. The radius of planet P is 3400 km3400\,\text{km} and the satellite’s orbital period is 2 h 15 min2\,\text{h}\,15\,\text{min}. Calculate the mass of planet P. (a) 5.0×1023 kg5.0\times10^{23}\,\text{kg} (b) 3.0×1023 kg3.0\times10^{23}\,\text{kg} (c) 4.6×1023 kg4.6\times10^{23}\,\text{kg} (d) 4.6×1022 kg4.6\times10^{22}\,\text{kg}

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