Acubic transmission casing whose side length is 25cm receives an input from the engine at a rate of 350 hp. if the vehicle's velocity is such that the average heat transfer coefficient is 230 w/m'k and the efficiency of the transmission is n=0.95 (i. e. the remainder is heat), calculate the surface temperature if the ambient temperature is 15°c. assume that heat transfer only occurs on one face of the cube. note: 1 hp=745 w

Agas contained within a piston-cylinder assembly e end nation about same energy states, 1 and 2, where pi 10 bar, v undergoes two processes, a and b, between the sam 0.1 m3, ui-400 kj and p2 1 bar, v2 1.0 m2, 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 +20 0 state 2 kinetic and potential energy effects can be ignored. for each of the processes a and b, (a) sketch the process on p-v coordinates, (b) evaluate the work, in kj, and (c) evaluate process the heat transfer, in kj