Which statement is true about the centripetal force acting on a body moving at a constant speed in a circle?

a. it has no centripetal force.

b. it has a centripetal force that is directed radially and outward.

c. it has a centripetal force that is directed radially and inward.

d. it has a centripetal force that is directed tangentially.

Edward tolman explained the results of his study by theorizing that the rats were learning about the maze during every trial but they a. were agitated because other groups were getting reinforcement b. could not remember how to demonstrate it without reinforcement c. were not motivated to demonstrate it without reinforcement d. seemed to be too lazy to actually work without reinforcement

The charge on a charged sphere is: a)concentrated at its centerb)distributed uniformly throughout its volumec)clustered on its centerd)distributed uniformly over its surface

In science and physics what is the standard unit of measure for speed?