An object weighs 100 N on the surface of the earth. Find its weight if it was 6.38 x 10' m above the surface?

What is the rate of 12 liters of water moving through a water hose in 4.0 minutes?

The ozone hole appears in antarctica during

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?