Agrade beam ab supports three concentrated loads and rests onsoil
and the top of a large rock. the soil exerts an upwarddistributed
load, and the rock exerts a concentrated
loadrr as shown. knowing that p = 1 kip
andwb = 1/2 wa, determine the values
ofwa and rr corresponding to equilibrium.

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.

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