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xratedcheese t1_iztkwuz wrote

Reply to comment by RobusEtCeleritas in Why do sonic booms happen at the speed of sound specifically? What does the speed of wave propagation have to do with the compression of air in front of a moving object? by SS7Hamzeh

So if a submarine could reach the speed of sound in water (something like twice as fast?) there would be a sonic boom in the water?

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Game_Minds t1_izu6llu wrote

It's normally called something else in dense/incompressible fluids like water, i.e. cavitation

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zekromNLR t1_j007zm4 wrote

The speed of sound in water is nearly five times as fast as in air, about 1500 m/s. An object moving that fast through water would experience a dynamic pressure of about 1.1 GPa, compared to about 70 kPa for something moving at the speed of sound through sea-level air - in other words, not really possible outside of extreme scenarios like meteorite impacts.

But yes, there would be a sonic boom. You can with a fast enough impact even have a sonic boom in solid materials.

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