Determine the speed of sound in air at (a) 300 k and (b) 800 k. Also determine the mach number of an aircraft moving in air at a velocity of 330 m/s for both cases. The gas constant of air = 0. 287 kj/kg k. The specific heat ratio of air at room temperature is 1. 4.

Can you me find area of the shaded region?

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What is likely to happen if a new aggregate demand curve moves to the right? prices and output would drop, and the equilibrium point will stay the same. prices would rise, and output would drop in the short run. prices and output would rise, and the equilibrium point will change. prices would rise, and output would drop in the long run.