Physics

Problem

Calculate the altitude above Earth’s surface at which a satellite must be placed so that its period is 24 h. Take

G = 6.67\times10^{-11}\,\text{N m}^2\text{kg}^{-2}

M_E = 6.0\times10^{24}\,\text{kg}

R_E = 6.4\times10^{6}\,\text{m}

and

T = 24\,\text{h}