A58 kg woman and a 70 kg man stand 18.0 m apart on frictionless ice. (a) how far from the man is their center of mass (cm)? 8.15625 correct: your answer is correct. m (b) if each holds one end of a rope, and the man pulls on the rope so that he moves 2.2 m, then how far from the woman will he be now? 13.6 incorrect: your answer is incorrect. m

If steel is more dense that lake water, why can a boat float

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up

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?