An object is thrown upward. It reaches a height of 10.7m above it release point and time 3.24s after it was at height of 10.7m.

A1,700kg car is being used to give a 1,400kg car a push start by exerting a force of 140n the impulse on the smaller car during the 30.0s of contact is +670kg*m/s. what is the impulse of the smaller car on the larger car? -814 kg*m/s 0kg *m/s -670kg*m/s -550kg*m/s

The electric potential a distance r from a small charge is proportional to what power of the distance from the charge? a. r^-1 b. r c. r^-2 d. r^2

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