An electrical power plant with an efficiency of 35% rejects 50 mw of heat to the surroundings. (a) what is the flux of heat input to the cycle, in mw? (b) what is the net rate of work (power) generated, in mw?

Sound waves are mechanical waves in which the particles in the medium vibrate ina direction parrallel to the direction of energy transport. what is another name of the type of wave that transfers energy in this way?

Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.

Petroleum contains energy. a. light b. kinetic c. chemical d. mechanical