Determine the drag due to an 80-km/h wind on a 2-m-diameter satellite dish. A wind-tunnel test is to be performed using a geometrically similar 0.5-m-diameter model dish. Assume standard air for both model and prototype and determine
(a) the air speed at which the model should be run and
(b) the predicted drag on the prototype dish with all similarity conditions satisfied and a measured drag on the model of 200 N. What is the predicted drag on the satellite dish?