A spring on a horizontal surface can be stretched and held 0. 5 m from its equilibrium position with a force of 45n. How much work is done in stretching the spring 3 m from its equilibrium position?.

Which accounts for an increase in the temperature of a gas that is kept a constant volume

What component of earth’s atmosphere exists entirely as a result of photosynthesis?

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?