The density of a solid material depends on two things .name those two things

Explain why the aperture of the spherical mirror should be small compared to the radius of curvature of the mirror.

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

Idon’t quite understand this problem