A ball is thrown downward from the top of a 41.0 m tower with an initial speed of 13.0 m/s. Assuming negligible air resistance, what is the speed of the ball just before hitting the ground

Adding more pulleys to a system of pulleys needed to lift an object. a. increases the force b. decreases the force c. increases the amount of work d. decreases the amount of work

What happens when chlorine reacts with bromine? a. electrons move from the chlorine atoms to the bromine atoms. b. electrons move from the bromine atoms to the chlorine atoms. c. electrons are shared between the chlorine atoms and the bromine atoms. d. electrons become delocalized among the atoms.

A1.5m wire carries a 2 a current when a potential difference of 52 v is applied. what is the resistance of the wire?