Physics · Sound and Wave Motion
The phenomenon called a 'sonic boom' is most directly caused by:
- 1interference of sound waves emitted by different parts of an aircraft engine
- 2the formation of pressure shock waves when an object travels faster than the speed of sound✓
- 3reflection of sound waves from the Earth's surface
- 4a sudden surge in engine thrust at high altitude
Correct answer
the formation of pressure shock waves when an object travels faster than the speed of sound
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