2 ms·
... Sonic booms happen anytime you're going supersonic speeds, it's not limited to when you cross the boundary. https://en.wikipedia.org/wiki/Sonic_boom https:
by jonknee 11y ago
... Sonic booms happen anytime you're going supersonic speeds, it's not limited to when you cross the boundary.
https://en.wikipedia.org/wiki/Sonic_boom https://en.wikipedia.org/wiki/Sonic_boom