How many times louder is he orchestra than the sound of the cell phone ringing

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =

What is the rate of change in a objects position?

Aball thrown by ginger is moving upward through the air. diagram a shows a box with a downward arrow. diagram b shows a box with an upward arrow. diagram c shows a box with a downward and upward arrow equal in size. diagram d shows a box with a downward and upward arrow with the downward arrow larger in size. which force diagram represents the forces on the ball? you may neglect the effects of air resistance.