It is necessary to lay out and mark a point d exactly 300.00 ft distant from point c for a construction project. a steel tape with an actual length of 100.03 ft is used. what should be the distance measured from c to accurately set the mark for point d? (assume a standard 20 lb tension is used, and temperature of 68of)

Air at a pressure of 1atm and a temperature of 40 c is in parallel flow over the top surface of a flat plate that is heated to a uniform temperature of 120 c. the plate has a length of 0.40m (in the flow direction) and a width of 0.15m. the reynolds number based on the plate length is 50, 000. what is the rate of heat transfer from the plate to the air? if the free stream velocity of the air is doubled and the pressure is increased to 10 atm what is the rate of heat transfer?