Moby is holding a Mason jar steady 3 meters above the ground. The Mason jar has a mass of 0.448 kilograms. Calculate the energy of the Mason jar while Moby waits to drop it.

Which is the best predictor of the radioactive nature of an isotope? o the proton-to-electron ratio the neutron-to-proton ratio o the neutron-to-electron ratio the electron-to-proton ratio

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

Aspring has a natural length of 8 m. if a 12-n force is required to keep it stretched to a length of 10 m, how much work w is required to stretch it from 8 m to 16 m? (round your answer to two decimal places.)