How do the nuclear reactions that power the Sun compare to the nuclear reactions that occur in a reactor at a nuclear power facility? A. The Sun is powered via nuclear fusion while a nuclear power facility harnesses energy from nuclear fission. B. The Sun is powered via nuclear fission while a nuclear power facility harnesses energy from nuclear fusion. C. Both the Sun and a nuclear power facility are powered by nuclear fusion reactions. D. Both the Sun and a nuclear power facility are powered by nuclear fission reactions.

From 0 to 5 seconds john pushed a box 5 meters. from 5 to 10 seconds, paul pushed the same box another 5 meters. who did more work? a. john b. paul c. john and paul did the same amount of work.

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?

A250-n box is at rest on a frictionless horizotal floor. then a person shoves the box with a non-zero force of magnitude p. which statement best describes the relationship betweeen p and the motion of the box after it was shoved? -the box will not move when p< 250n but otherwise will accelerate at a constant rate that is directly proportional to p - the box will begin moving at a speed that is directly proportional to p, then will gradually slow to a halt -the box will move with constant velocity at a speed that is directly proportional to p -box will accelerate across the floor at a constant rate that is directly proportional to p