Acoin is dropped from a height of 188 meters. neglecting air resistance, how much time (in seconds) was the coin in the air?

Explain in physical terms how a microwave oven works. what would happen when you put a conductor in the microwave oven? explain.

The key to stability is feedback between the reservoir and the fluxes into and/or out of the reservoir. assume that the rate of outflow from a reservoir depends on the size of the reservoir according to the following relationship: outflow rate= k x (size of reservoir), where k is a constant. a reservoir of water has a volume of 5000 liters, and the rate of outflow at steady state is 25 liters per minute. what is k? (give both the numerical value and its units.) what is the residence time? what is the relationship between k and the residence time?

Will you chech and finish these for me, because i am stumped with them.