Determine the increase in mechanical energy per unit mass needed to move a satellite…

PHYSICS · Subjective · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

Determine the increase in mechanical energy per unit mass needed to move a satellite from an altitude of

400\,\text{km}

(orbit radius

6.78\times10^{6}\,\text{m}

) to an altitude of

1000\,\text{km}

(orbit radius

7.38\times10^{6}\,\text{m}

) above Earth’s surface. Use

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

and

M_{\text{E}}=6.0\times10^{24}\,\text{kg}