What condition is necessary for a moving object to produce a sonic shockwave? If

Question

What condition is necessary for a moving object to produce a sonic shockwave? If the angle of the shockwave cone is 70? (as shown in the second photograph), what speed is this plane travelling at? (Speed of sound = 340 m/s) A sonic boom from a plane is one example of a shockwave. Give another example of an object producing a shockwave. Here is a photo of a plane. You can see a shock wave cone produced at the back of the plane: What condition is necessary for a moving object to produce a sonic shockwave? If the angle of the shockwave cone is 70? (as shown in the second photograph), what speed is this plane travelling at? (Speed of sound = 340 m/s) A sonic boom from a plane is one example of a shockwave. Give another example of an object producing a shockwave.

Explanation / Answer

then sina = vs / vo therefore the speed of the plane vo = vs / sin70 = 340/sin70 = 361.8 m/s
The sound heard on the ground as a sonic boom is the sudden onset and release of pressure after the buildup by the shock wave. The change in pressure caused by sonic boom is only a few pounds per square foot, about the same pressure change we experience on an elevator as it descends from higher floors in a much short period of time.

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