Two plane mirrors are placed 75 cm apart with their mirrored surfaces parallel and facing each other. If the mirrors are 10 cm wide, at what angle should a beam of light be incident at one end of one mirror so that it just strikes the far end of the other?

Identify the arrows that show the correct direction of heat transfer. 66°f 112°f 98°f

Which explanation describes the forces involved for a person to walk down the sidewalk? a. the person's feet push backward on the sidewalk; the sidewalk pushes backward on the person. b. the person's feet push forward on the sidewalk; the sidewalk does not push on the person. c. the person's feet push backward on the sidewalk; the sidewalk pushes forward on the person. d. the person's feet push forward on the sidewalk; the sidewalk pushes forward on the person.

Acar moves at 12m/s and coasts up a hill with a uniform acceleration of -1.6m/s2. how far has it traveled after 6.0s?