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What is 9 Mach compared with mph?

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Anonymous

∙ 15y ago
Updated: 9/17/2023

The speed of sound (and hence the Mach number) depends on the nature and density of the fluid through which the sound travels. Generally, though Mach 1 (in air, at sea level, and at 15 deg C) is approx 760 mph. So Mach 9 would be 6840 mph.

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∙ 15y ago
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What is the speed in mph in mach 0.8?

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Mach 6 is about 4,449.3 mph


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Mach 3.5 is about 2,595.4 mph


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Mach 10 = 7,612.07 mph


How many mph is mach 0.85 at 30000 feet?

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