Will any one ever love me ? :(

Aplane travels 1000 miles in 5 hours .what is the planes average speed?

What properties of a moving object are used in determining the object's energy of motion

Light traveling in water, nwater = 1.33, strikes a plastic block at an angle of incidence of 51.4°; part of the beam is reflected and part is refracted. if the index of refraction of the plastic is 2.0, what is the angle made by the reflected and refracted beams?