Which of the following is the dosest to the change in gravitational potential energy for a 10 kg weight which is raised from a 1 m tall stool to a 5 m tall table?
a
400)
b
300)
Ο Ο Ο Ο
200)
500
d

A- a of 8.00 cm a of 34.0 nc. a , -, a of 25.0 nc is on of a of 15.0 cm .be toto aof ? a) b) c) j d) e)

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?

Explain what will happen if decomposers were apsent from a forest ecoysystem.