Lebron James has power output of 9,200 watts while jumping 1.01 meters up. He has a body mass of 114 kg. A. What is Lebron's weight?

B. How much work does his leg do when he jumps up into the air?

C. How fast can he reach his peak vertical jump? D. What is his gravitational potential while he is up in the air?

E. What is his velocity right before he lands on the ground?

Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.