A wheel barrow is used to lift a 8.6-lb load. The length from the center of the wheel (fulcrum)
to the center of the load is 6.5 ft. The length from the wheel to the effort is 7.5 ft. What is the
effort force needed to bring the will barrow to static equalibrium?

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.