Many people mistakenly believe that the astronauts who orbit Earth are "above gravity." Earth's mass is 61024kg 6 10 24 k g , and its radius is 6.38106m 6.38 10 6 m (6380 km k m ). Part A Use the inverse-square law to find a height above Earth's surface at that the force of gravity on a shuttle is about 94 % % that at Earth's surface. Express your answer to two significant figures and include the appropriate units