If the perturbation is a constant potential, how many terms are needed for an exact solution?
a)infinite
b)one
c)it depends on the nature of the system.
d)zero
e)two

Astate of matter all that has define volume and can flow is a(n)

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.

If the spring constant k of a pogo stick is 3500 n m and the weight of the person on the pogo stick is 700 n, how much is the spring in the botom of the pogo stick compressed?