A brass bolt (Eb = 15 X 10^6 psi) of 3/8 in. diameter is fitted inside a steel tube (Es = 29 X 10^6 psi) of 7/8-in. outer diameter and 1/8 in. wall thickness. After the nut has been fit snugly, it is tightened a one-quarter full turn. Knowing that the bolt is single-threaded with a 0.1-in. pitch, determine the normal stress in: a. The bolt
b. The tube.

Agas mixture consists of 8 kmol of h2 and 2 kmol of n2. determine the mass of each gas and the apparent gas constant of the mixture.

Prove the equivalence between the two statements of the 2nd law of thermodynamics (i. e., a violation of one statement leads to the violatio the other statement)

A2-m rigid tank initially contains saturated water vapor at 100 kpa. the tank is connected to a supply line through a valve. steam is flowing in the supply line at 600 kpa and 300 c. the valve is opened, and steam is allowed to enter the tank until the pressure in the tank reaches the line pressure, at which point the valve is closed. a thermometer placed in the tank indicates that the temperature at the final state is 200°c. determine (a) the mass of steam that has entered the tank (b) the amount of heat transfer.