5. A person weighs 85N on the surface of the moon and 490N on the surface of the earth. What is the acceleration of gravity on the surface of the moon?

According to newton’s first law of motion, which force is expected to cause a body to accelerate?

Explain earth's motion, using the terms "precession" and "rotation" in your answer.

An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. but she does have devices to measure distance and time accurately. she knows her own mass is 77.4 kg , but she is unsure of the mass of a large gas canister in the airless rocket. when this canister is approaching her at 3.50 m/s , she pushes against it, which slows it down to 1.30 m/s (but does not reverse it) and gives her a speed of 2.60 m/s . what is the mass of the canister?