A. How much heat must be absorbed by 3.00 kg of ice at -22.0 Celsius to raise it to its melting point? (c of ice = 2060 J/kg K) B. How much more heat needs to be added to melt the ice from question 2? (Hf of ice = 3.34 x 105 J/Kg)

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?