A CRANE LIFTS A WRECKING BALL TO SEVERAL
DIFFERENT HEIGHTS AND ALLOWS IT TO FALL.
A DEVICE IS USED TO MEASURE THE SPEED OF
THE BALL JUST BEFORE IT REACHES THE
GROUND. WHICH SHOWS THAT
LIFTING THE BALL TO A GREATER HEIGHT
TRANSFERS MORE ENERGY TO THE BALL?

What happens to atoms and chemical bonds during a reaction?

Explain what makes a passenger in a turning car slide toward the door. critical thinking

Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?