C 4.5 m s-2 D 7200 m s-2 Your answer 21 Two point masses m1 and m2 are a distance r apart. What is the magnitude of the gravitational field strength caused by m1 at m2? A B C D Your answer 22 A communications satellite which takes 24 hours to orbit the Earth is replaced by a new satellite which has twice the mass of the old one. The new satellite also has an orbit time of 24 hours. What is the value of ? A
C 4.5 m s-2 D 7200 m s-2 Your answer 21 Two point masses m1 and m2 are a distance r apart. What is the magnitude of the gravitational field strength caused by m1 at m2? A B C D Your answer 22 A communications satellite which takes 24 hours to orbit the Earth is replaced by a new satellite which has twice the mass of the old one. The new satellite also has an orbit time of 24 hours. What is the value of ? A
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