Apvc pipe of internal diameter 50 mm is 150 m long and conveys air at 100 kpa and 20°c. if the entrance velocity is 30 m/s, determine the conditions at its exit. assume no heat transfer is taking place but do account for friction

Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.

Air flows over a heated plate àt a velocity of 50m/s. the local skin factor coefficient at a point on a plate is 0.004. estimate the local heat transfer coefficient at this point.the following property data for air are given: density = 0.88kg/m3 , viscosity 2.286 x 10 ^-5 kgm/s , k = 0.035w/mk ,cp = 1.001kj/kgk. use colburn reynolds analogy.

For a gate width of 2 m into the paper, determine the force required to hold the gate abc at its location.