?
If you have a heat engine with a hot reservoir of 515°C and a
cold reservoir of 190°C,...
Physics, 11.02.2020 20:24, zhellyyyyy
?
If you have a heat engine with a hot reservoir of 515°C and a
cold reservoir of 190°C, what is the thermal efficiency of the
system?
63.1%
75.2%
52.1%
67.9%
Answers: 2
Physics, 22.06.2019 12:30, promcafee8788
Awheel of mass 48 kg is lifted to a height of 0.8 m. how much gravitational potential energy is added to the wheel? acceleration due to gravity is g = 9.8 m/s2. a. 30.4 j b. 3.1 j c. 297.9 j d. 11,321 j
Answers: 1
Physics, 22.06.2019 15:20, alissalhenry
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.
Answers: 3
Physics, 22.06.2019 21:30, carleygalloway103
Calculate the minimum energy required to remove one proton from the nucleus 126c. this is called the proton-removal energy. (hint: find the difference between the mass of a 126c nucleus and the mass of a proton plus the mass of the nucleus formed when a proton is removed from 126c.) express your answer with the appropriate units. emin e m i n = nothing nothing request answer part b how does the proton-removal energy for 126c compare to the binding energy per nucleon for 126c, calculated using eb=(zmh+nmn−azm)c2?
Answers: 1
Mathematics, 02.10.2019 21:10
Geography, 02.10.2019 21:10
English, 02.10.2019 21:10
English, 02.10.2019 21:10
Chemistry, 02.10.2019 21:10