A ray of light is incident on a flat reflecting surface and is reflected. If the incident ray makes an angle of 48.0° with the normal to the reflecting surface, what angle does the reflected ray make with the normal?

Ball b is hanging from an inextensible cord. an identical ball a is released from rest when it is just touching the cord and drops through the vertical distance h a 5 8 in. before striking ball b. assuming e 5 0.9 and no friction, determine the resulting maximum vertical displacement h b of the ball b

The respiratory system removes oxygen and water from the body. select the best answer from the choices provided t f

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.