Physics, 03.07.2019 05:10, AquaTyrant9232
Aquantity of air undergoes a cycle consisting of the following internally reversible processes in a closed system. process 1-2: constant-volume heating from an initial state at pi 0.1 mpa, ti - 27 °c, and v1 0.02 m3 to p2 0.4 mpa process 2-3: constant-pressure cooling process 3-1: isothermal heating to initial state employing the ideal gas model with variable specific heats, find (a) entropy change in each process of the cycle, (b) heat and work involved in each process of the cycle, (c) is this cycle a power cycle or refrigeration cycle?
Answers: 3
Physics, 22.06.2019 17:30, masonorourke
Describe cytokinesis in plants and animals. in animals: in plants.
Answers: 2
Physics, 22.06.2019 22:20, queenbee2994
One hazard of space travel is debris left by previous missions. there are several thousand masses large enough to detect by radar orbiting the earth, but there are far greater numbers of very small masses such as flakes of paint. calculate the force exerted by a 0.110 mg chip of paint that strikes a space shuttle window at a relative speed of 5.00 ✕ 103 m/s and sticks, given the collision lasts 6.00 ✕ 10-8 s. such a collision chipped the window of the ill-fated challenger in june 1983, causing $50,000 of damage.
Answers: 2
Aquantity of air undergoes a cycle consisting of the following internally reversible processes in a...
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