Question 8(Multiple Choice Worth 2 points) (05.06 MC) Jon is designing an experiment to see the effect of mechanical energy on the number of times a ball bounces. Why is it important that Jon keeps detailed records of his experiment? The records will show how bouncy the ball is. The evidence produced by his experiment should be replicable by others. The evidence produced by the experiment will prove that he is a good scientist. The records will prove that the mechanical energy of the ball will change with height.

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