Packages are thrown down an incline at a with a velocity of 1 m/s. the packages slide along the surface abc to a conveyor belt which moves with a velocity of 2 m/s. knowing that d 5 7.5 m and μk 5 0.25 between the packages and all surfaces, determine (a) the speed of the package at c, (b) the distance a package will slide on the conveyor belt before it comes to rest relative to the belt.

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

For waves in the ocean, the medium of the waves is a. air b. water c. energy d. a passing boat

Acid precipitation chemically weathering a 5.0-kg limestone rock . which coukd be the result ?