When the U.S. submarineSqualus became disabled at a depth of 80 m, a cylindrical chamberwas lowered from a ship to rescue the crew. The chamberhad a radius of 1.00 m and a height of 4.00 m, was open at thebottom, and held two rescuers. It slid along a guide cable that adiver had attached to a hatch on the submarine. Once the chamberreached the hatch and clamped to the hull, the crew could escapeinto the chamber. During the descent, air was released fromtanks to prevent water from flooding the chamber. Assume thatthe interior air pressure matched the water pressure at depth has given by p0 +rgh, where p0=1.000 atm is the surface pressureand r=1024 kg/m3 is the density of seawater. Assume a surfacetemperature of 20.0C and a submerged water temperatureof -30.0C. (a)What is the air volume in the chamber at the surface?(b) If air had not been released from the tanks, what wouldhave been the air volume in the chamber at depth h=80.0 m?(c) How many moles of air were needed to be released to…

By how much does the density of air increase when it is compressed to half its volume?

The cylindrical chimney of a factory has an external diameter of 1.1 m and is 20 m high. Determine the bending moment at the base of the chimney when winds at 110 km/h are blowing across it. Take the atmospheric conditions to be 20°C and 1 atm.