Apiston-cylinder device contains helium gas initially at 137 kpa, 20 c at a volume of 0.3 m3 . helium is now compressed to 328 kpa. the pressure volume relation that describes the compression process is given by pvn = constant, where n = 1.4. for this compression process, how much work was done on the gas? your solution should have units of kj

If you were designing a bumper for a car, would you prefer it to exhibit elastic or plastic deformation? why? consider the functions of a bumper in both a minor "fender-bender" and a major collision.

Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10

Inspection for bearing condition will include: (clo4) a)-color b)-smell c)-size d)-none of the above