L = 3 m The following Problem shows the great use of momentum- Air heat transfer analogies for calculating the convection heat 20C, 7 m/s transfer coefficient h. The h value can be obtained from a knowledge of the friction coefficient, which is easier to determine. The figure on the right shows a schematic representation of a flat plate that is subjected to air flow. Properties of air at 1 atm pressure are given on the next slide. Assuming a steady operating conditions and the edge effects are negligible, answer the following. a)If the total drag force acting on the plate (F.) is measured to be 0.86 N, and knowing that for flat plates, the drag force 2 m * 3 m flat plate is equivalent to friction force, calculate the average friction Both sides of the plate coefficient (Cf). Hint: Eq. (7.1). are exposed to airflow b)Using the modified Reynolds analogy, calculate the average convection heat transfer coefficient for the plate. Assume = 1