A projectile like object with maximum diameter of 20 cm is placed at the exit of a 25 cm diameter pipe. Water flows through the pipe. At the upstream location 1, the velocity is uniform and is equal to 2 m/s. The water exits to the atmosphere where the pressure is 100 kPa. Find the force required to hold the object in place. State necessary assumptions.

An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature

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.

How to increase the thermal officiency of an ideal simple rankino cycle? among these methods, which one is the best and why?