An airplane was 300 km [N] of Toronto airport, 3 hours later the airplane 600 km [S] of Toronto airport, calculate.
a. The airplane’ total displacement relative the Toronto airport.
b. The airplane average velocity

Abearing is designed to a reduce friction b. support a load c. guide moving parts such as wheels, shafts and pivots d. all of the above

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

Blank liquids and gases exert a buoyant force on objects placed in them