If a Plane Is Flying at a Speed So That $\degree$

question 26

Multiple Choice

If a plane is flying at a speed so that the apex half-angle of its shockwave is 30 $\degree$ , what is its speed if the speed of sound is 320 m/s?

• A)960 m/s
• B)640 m/s
• C)320 m/s
• D)160 m/s
• E)Choose this answer if a shock wave cannot form in this situation.

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