Physics, 01.02.2022 14:00 wowihavefun
A piston absorbs 25 J of heat from its surroundings while expanding from
0.0003 m² to 0.0006 m3 at a constant pressure of 1.0 x 105 Pa. What are the
correct values for heat and work for the piston?
A. Q = -25 J, W = +30 J
B. Q = +25 J, W = -30 J
O
O
C. Q = +25 J, W = +30 J
O D. Q = -25 J, W = -30 J
Answers: 1
Physics, 22.06.2019 01:10
Asteam power plant operates on an ideal reheat rankine cycle between the pressure limits of 15 mpa and 10 kpa. the mass flow rate of steam through the cycle is 12 kg/s. steam enters both stages of the turbine at 500°c. if the moisture content of the steam at the exit of the low-pressure turbine is not to exceed 10 percent, determine (a) the pressure at which reheating takes place, (b) the total rate of heat input in the boiler, and (c) the thermal efficiency of the cycle. also, show the cycle on a t-s diagram with respect to the saturation lines. (2.15 mpa; 45.0 mw; 42.6%)
Answers: 3
Physics, 22.06.2019 05:30
Suppose you have three polarizing filters, with the second at an angle of 42∘ to the first and the third at an angle of 90∘ to the first. by what perfect will the original intensity of unpolarized light be reduced to after passing through all three filters?
Answers: 2
Physics, 22.06.2019 06:00
Explain earth's motion, using the terms "precession" and "rotation" in your answer.
Answers: 1
Physics, 22.06.2019 19:00
What is the gravitational attraction between a dating couple whose centers of mass are 0.630 m apart if the boy weighs 715 n and the girl weighs 465 n?
Answers: 3
A piston absorbs 25 J of heat from its surroundings while expanding from
0.0003 m² to 0.0006 m3 at...
Social Studies, 04.02.2020 07:52
Computers and Technology, 04.02.2020 07:52
Mathematics, 04.02.2020 07:52
Mathematics, 04.02.2020 07:52
History, 04.02.2020 07:52
English, 04.02.2020 07:52
Mathematics, 04.02.2020 07:52
Mathematics, 04.02.2020 07:52
Chemistry, 04.02.2020 07:52
Mathematics, 04.02.2020 07:52
Biology, 04.02.2020 07:52