S. a. Magnitudes and directions of the stresses on two planes inter shooting at a point are as shown in figure. Determine the direction and magnitudes of the principal stresses at this point. Sketch the 3 result on an element, 2p V3p 30° I 1 309 r\3р 11! A2P 11.​

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?