Water at 10 c enter a 2.54 cm i. d. pipe at a rate of 1.26 l/s. the pipe is 3.05 m long. if the wall temperature is held constant, at 99 c, and the water outlet temperature is 41

c. what is nusselt number for the flow? what nusselt number would you predict on the basis of the colburn analogy?

In a game of pool, ball a is moving with a velocity v0 of magnitude v0 = 15 ft/s when it strikes balls b and c, which are at rest and aligned as shown. knowing that after the collision the three balls move in the directions indicated and assuming frictionless surfaces and perfectly elastic impact (that is, conservation of energy), determine the magnitudes of the velocities va, vb, and vc.