If a man with a mass of 80 kg stops at the bottom of a building and wants to climb to the top. If the height of the building is 9 meters above the
ground, calculate the potential energy of the man while he isstanding below the
building with respect to the roof of the building?

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?

Another word for electromagnetic energy is a. heat b. force c. matter d. radiation

Why should the wavelength scale of spectroscope be calibrated