Why Are Bullets So Loud. Because the air molecules inside the balloon explode. The reason for this is aerodynamics.
Start with the liquid and add the solid ingredients. they are actually quieter than supersonic bullets. The sonic boom from a jet as it breaks mach 1 is.
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The sonic boom from a jet as it breaks mach 1 is. Something resembling a bullet (as in curved form) b : To have a small bullet to do large amounts of. It is because of the mufflers.