Jordan Farmar was drafted 26th in the 2006 NBA draft by Los Angeles. He is measured to have a vertical leap of 42 inches, and weighs 180 lbs. The reason he accelerates into the air is

In a system, when potential energy decreases, then entropy also decreases. true false

Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.

1kg of water needs to recieve 4200j of energy to go from 90 degrees to 91 degrees. what is the specific heat capacity of water? what are the units?