Relative speed

To circle Earth in low orbit, a satellite must have aspeed of about 2.7 X 104 km/h. Suppose that two such satellites orbitEarth in opposite directions. (a) What is their relative speedas they pass, according to the classical Galilean velocity transformationequation? (b) What fractional error do you make in (a) bynot using the (correct) relativistic transformation equation?

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