1. A storage tank 29 m high is filled with pure water. (Assume the tank is open and exposed to the atmosphere at the top.)
a. Find the gauge pressure at the bottom of the tank.
b. Calculate the magnitude of the force produced by the fluid that acts on a square access hatch at the bottom of the tank that measures 0.4 m by 0.4 m.
2. A modern-day zeppelin holds 8,900 m3 of helium. Compute its maximum payload at sea level. (Assume the helium and air to be at 0°C and 1 atm.)