Forces in 2D Trouble!!! Two forces act on a 27 kg mass to give itan acceleration of 29 m/s2 in the positive x direction. If one of the forces acts in the negative y direction with a magnitude of 570 N, what is the magnitude of the second force.

What property is a characteristic of a substance that can be observed and does not change the identity of the substance

Amoving electron has kinetic energy k1. after a net amount of work w has been done on it, the electron is moving one-quarter as fast in the opposite direction. (a) find w in terms of k1. (b) does your answer depend on the final direction of the electron's motion?

What is the increase in density of a medium due to wave travel?