The radiator of a steam heating system has a volume of 32 l and is filled with superheated water vapor at 200 kpa and 150°c. at this moment both the inlet and the exit valves to the radiator are closed. after a while the temperature of the steam drops to 40°c as a result of heat transfer to the room air. determine the entropy change of the steam during this process. (round the final answer to three decimal plac

Ahorizontal wire is tied to supports at each end and vibrates in its second-overtone standing wave. the tension in the wire is 5.00 n, and the node-to-node distance in the standing wave is 6.28 cm. (a) what is the length of the wire? (b) a point at an anti- node of the standing wave on the wire travels from its maximum upward displacement to its maximum downward displacement in 8.40 ms. what is the wire's mass?

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

10 points! will mark brainiest! in a heat engine if 1,000 j of heat enters the system and the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2,000 j 1: write the equation 2: list out your known variables 3: plug the numbers into the equations 4: solve 5: write your solution statement that includes initial energy and final energy added you so much!