An ideal spring with a spring constant (force constant) of 40 N/m is stretched from equilibrium to 5 m. How 15) much work is done in the process?

Specific heat refers to the amount of heat required to change 1 gram of a substance by degree(s) celsius

Of is j/kg·k. if a 2.6 kg of isk to k,is ?

According to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does maria's voyage take according to samir?