What will be the kinetic energy of a pile driver ram that starts from rest and undergoes a 10kj decrease in potential energy?

Answer quickly (15 points) a comet is approaching earth. describe earth’s gravitational pull as the comet gets closer to it. a. remain constant b. increase c. decrease d. reversed

What is the energy of a photon of ultraviolet radiation with a frequency of 4.4 × 1015 hz? planck’s constant is 6.63 × 10–34

If a tank filled with water contains a block and the height of the water above point a within the block is 0.8 meter, what is the pressure at point a?