6. A 2000 kg spacecraft is located 9.2x10 m from the center of the earth. The mass of the earth is 6.0x1024 kg. What is the force of gravity acting on the spacecraft?

During the apollo moon missions, astronauts were concerned about the effects of newton's third law of motion when: o a. they ejected waste water, because they were concerned that it would push them off course. o b. they reentered earth's atmosphere, because they were carrying heavy moon rocks. o c. they took off from earth, because a large force was required to generate large acceleration. o d. they detected incoming space debris, because the inertia of the debris could damage their ship.