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speed of sound

NOUN
Mach number
Synonyms


Example Sentences

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The experimental X-plane is set to begin a new series of test flights that will include its first trip beyond the speed of sound, along with several other key objectives for the mission.

From Science Daily • Jun. 1, 2026

Among the weapons Russia used during the barrage was its Oreshnik hypersonic missile, which can travel 10 times the speed of sound and is capable of carrying nuclear warheads, according to Moscow.

From Barron's • May 25, 2026

The company’s goal is to eventually develop a hypersonic plane reaching Mach 5, or five times the speed of sound, and Southern California has the engineering talent base to help achieve that, executives said.

From Los Angeles Times • Apr. 7, 2026

The Army is also developing a hypersonic missile with a range of over 1,000 miles that travels at five times the speed of sound.

From The Wall Street Journal • Mar. 19, 2026

All sound waves are travelling at about the same speed — the speed of sound.

From "Understanding Basic Music Theory" by Catherine Schmidt-Jones and Russel Jones




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