Light traveling through a piece of glass slows to 120.000 mi/s. What is the retractive index of this type of glass? (Speed of light (186282 Miles/second))

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

When the displacement of a mass on a spring is 12a the half of the amplitude, what fraction of the mechanical energy is kinetic energy? at what displacement, as a fraction of a, is the mechanical energy half kinetic and half potential?

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a.true or b.false