7. if f1 is the magnitude of the force exerted by the earth on a satellite in orbit about the earth and f2 is the magnitude of the force exerted by the satellite on the earth, then which of the following is true?

F1 is equal to F2            

Explanation:

Here

F1 is the gravitational force exerted by the earth on the satellite.

F2 is the gravitational force exerted by the satellite on the earth.

Now these two forces are equal but opposite in nature. This is given by the Third law of motion by Newton. According to this law, when there is force exerted between two objects, one force is balanced the other force which is equal in magnitude and opposite in nature.

Thus the gravitational force of the earth exerted on the satellite is equal to the force exerted by the satellite on the earth.

Hence F1 = F2.

since you're a real machine, your ama is always less than your ima, because you can never totally eliminate friction.

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