Verified Answer :

VenusRetrograde

Answer=C

Supersonic speed is a rate of travel that exceeds the speed of sound. The speed of sound is Mach 1

a. Mach 0.5

b. Mach 1

c. Mach 1.5

C is the correct answer. Mach1.5>Mach1

a is less than the speed of sound, therefore it doesn't exceed it.
Mach0.5<Mach1

b is exactly the speed of sound, so it doesn't exceed it.
Mach1=Mach1

Answer:

The answer is MACH 1.5

Explanation:

Supersonic speed is anywhere from 1.5 Mach to 5 Mach.

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