A power cycle operates between two reservoirs having temperature 700 K and 300K, respectively. QH is the heat (thermal energy) received from the hot reservoir. QL is the heatrejected to the cool reservoir. Wmech represents the mechanical work produced. Please determineif the following cycles are possible and explain why?
(A). QH=700 kJ, Wmech=400 kJ, QL=300 kJ;(B). QH=700 kJ, Wmech=500 kJ, QL=200 kJ;(C). QH=700 kJ, Wmech=300 kJ, QL=600 kJ;(D). QH=700 kJ, Wmech=600 kJ, QL=100 kJ;

unlike the threaded fasteners which are used to clamp the machine members, power screws are used to transmit power. common applications of power screws are: screw jacks: to lift weight. lead screw of lathe: for axial movement of tool and its precise positioning.

the warning light flashes for a second or two when the engine starts. if it stays on, there's must be something wrong with the coolant. you should never dare to continue driving when the light is on. pull over as soon as possible and shut the engine off.

hope this is what you're talking about

answer: report them

explanation: