Physics, 04.11.2021 19:50, sweetycakes6994

Can someone help me understand this and how you got the answer? Compare the speed of the marbles at the end of each ramp. Explain your reasoning

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Physics, 22.06.2019 16:50, fsugg9168

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Physics, 23.06.2019 07:00, laylaaaaah1603

I) a gas contained within a piston-cylinder assembly undergoes two processes, a and b, between the same end states, 1 and 2, where p1 = 10 bar, v1 = 0.1 m3 , u1 = 400 kj and p2 = 1 bar, v2 = 1.0 m3 , u2 = 200 kj: ' process a: process from 1 to 2 during which the pressure-volume relation is pv = constant. ' process b: constant-volume process from state 1 to a pressure of 2 bar, followed by a linear pressure-volume process to state 2. kinetic and potential energy effects can be ignored. for each of the processes a and b, a) sketch the process on a p-v diagram. b) evaluate the work, in kj. c) evaluate the heat transfer, in kj.(ans : qb,12 = -65.0 kj)

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Can someone help me understand this and how you got the answer? Compare the speed of the marbles a...