A. USA
B. North Korea
C. France
D. Israel
Submitted by: Asad Ullah Afridi
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Hypersonic flight. Hypersonic flight is flight through the atmosphere below about 90 km at speeds above Mach 5, a speed where dissociation of air begins to become significant and high heat loads exist. Russia is the first country to deploy a hypersonic nuclear missile.
The U.S. Defense Department tested a hypersonic glide body in a flight experiment conducted from the Pacific Missile Range Facility in Kauai, Hawaii, on March 19, 2020. The Navy and Army jointly executed the launch. (U.S. Defense Department)
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