2-lbm of water at 500 psia initially fill the 1.5-ft3 left chamber of a partitioned system. the right chamber’s volume is also 1.5 ft3, and it is initially evacuated. the partition is now ruptured, and heat is transferred to the water until its temperature is 300°f. determine the final pressure of water, in psia, and the total internal energy, in btu, at the final state.

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

A75-hp (shaft output) motor that has an efficiency of 91.0 percent is worn out and is to be replaced by a high-efficiency motor that has an efficiency of 95.4 percent. the motor operates 4368 hours a year at a load factor of 0.75. taking the cost of electricity to be $0.12/kwh, determine the amount of energy and money saved as a result of installing the high-efficiency motor instead of the standard motor. also, determine the simple payback period if the pu

In a star, nuclear fusion occurs in the a. photosphere. b. corona. c. radiative zone. d. core.