A hot air balloon of mass 250.00 kg at a height of 150.0 m descends slowly into a field. What is the GPE of the balloon before the descent, in kilojoules?

Amoving electron has kinetic energy k1. after a net amount of work w has been done on it, the electron is moving one-quarter as fast in the opposite direction. (a) find w in terms of k1. (b) does your answer depend on the final direction of the electron's motion?

Against his financial advisor's advice, frank has decided to invest his money in some risky stocks because he once made quite a bit of money in the stock market. his decision illustrates a. the representativeness heuristic b. overconfidence c. the availability heuristic d. confirmation bias select the best answer from the choices provided

Identify the type of heat transfer occurring when chocolate melts in your hand