You are provided with an epicyclic (planetary) gear train with the following 30, 20 and 70 teeth on the sun, planet and ring gear respectively. (a) draw a good sketch of this planetary gear train when viewed "along the axis" and "perpendicular to the axis' directions (b) what are the possible velocity ratios for this gear train? you can assume the ring gear will always be held constant.

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