The velocity profile in fully developed laminar flow in a circular pipe of inner radius R= 6 cm, in m/s, is given by U(r) = 4 (1-) . Determine the average and maximum velocities in the pipe and the volume flow rate. u(r) = R- R The average velocity in the pipe is m/s. The maximum velocity in the pipe is m/s. The volume flow rate is m3/s.

#16 only

6) To solve the sub-part (B) only

please answer ii)

Please explain

number 30

Problem 4: Speed deamplifier. In the figure above on the right, block 1 of mass m1 slides along an x-axis on a frictionless floor at speed 4 m/sec.Then it undergoes a one-dimensional elastic collision with stationary block 2 of mass m2 = 2m1. Next, block 2 undergoes a one-dimensional elastic collision with stationary block 3 of mass mz = 4m1. What then is the speed of block 3? Answer: 16 m/sec or 1.78 m/sec.