Find the pressure due to a column of mercury 80 cm high.
1. Find the pressure due to a column of mercury 80 cm high.
2. A rectangular tank 6 x 8 ft is filled with a gasoline to a depth of 80 ft. The pressure at the gasoline is 14.7 psi. Find the pressure at the bottom of the tank and force exerted on the bottom.
3. A 130 lb woman balances on the heel of her right shoe which is 1 in radius. How much pressure does she exert on the ground?
4. An amount of heat equal to 2500 J is added to a system, and 1800 J of work is done on the system. What is the change in internal energy of the system?
5. Determine the change in internal energy of 1.0 L of water at 100 deg C when it is fully boiled, which results in 1671 L of steam at 100 deg C. Assume the process is done at atmospheric pressure.
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