The average speed is expressed as:

$\overline{){\mathbf{v}}{\mathbf{=}}\sqrt{\frac{\mathbf{G}\mathbf{M}}{\mathbf{R}}}}$

Substituting:

The approximate distance between earth and the sun is 1.5x10^{11} meters, calculate the average speed in kilometers per second. The orbital period of the earth is 3.16x10^{7}.

s^km/s=?

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