8 a cruise missile under test is moving horizontally at ma2 in th21624
8. A cruise missile under test is moving horizontally at Ma=2 in the atmosphere at an elevation of 305m above the earth surface. Assume standard atmosphere.Determine the time elapsed to hear the disturbance from the instant it is directly overhead an observer in the following cases. (a). When the observer is on the ground. (b) When the observer is in an airplane, which is moving in the same direction as the missile at a speed ½ the speed of sound at an elevation 305mabove the missile. (Hint: Lecture notes)
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