A W12x65 is used as a simply supported, uniformly loaded beam with a span length of 50 feet and continuous later support. The yield stress, Fy is 50ksi. If the ratio of live to dead load is 3, compute the available strength and determine the maximum total service load, in kips/ft, that can be supported. Use LRFD

Determine the damped natural frequencies and the steady state response of a decoupled damped forced two degrees of freedom system. 10ä1 + 2q1 20q1 10 cos t; 10q2 +4q2 + 40q2 10 cos t

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.

The proportional limit is always greater than the yield strength for a material. a)-trune b)- false