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Physics, 09.12.2021 02:30 caggh345

The Lockheed SR-71 Blackbird is a high-altitude spy plane and the current officialrecord speed holder. Fully loaded, the Blackbird has a mass of 7.7 x 10 4 kg, and attop speed it has a kinetic energy of 3.7 x 10 10 J. What is the top speed of the SR-71?

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