1. A projectile is fired into a gas in which the pressure is 320 kPa and...

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1. A projectile is fired into a gas in which the pressure is 320 kPa and the density is 4.33 kg/m3. It is observed experimentally that a Mach cone emanates from the projectile with a total angle (from the tip) is 20. What is the speed of the projectile with respect to the gas? 1. A projectile is fired into a gas in which the pressure is 320 kPa and the density is 4.33 kg/m3. It is observed experimentally that a Mach cone emanates from the projectile with a total angle (from the tip) is 20. What is the speed of the projectile with respect to the gas?