Technician A says radial tires have the ply cords positioned at a right angle in relation to the tire centerline. Technician B says that if radial tires are filled with nitrogen, the inflation pressure remains more stable over a longer period of time. Who is correct

Line joining liquid phase with liquid and solid phase mixture is known as: a) liquidus b) solidus c) tie line d) none of the mentioned

The sum of the normal stresses does not change as the stress state rotates through an angle. a)-trune b)- false

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?