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What is hypersonic and supersonic ?​

Answer»

ʜʏᴘᴇʀsᴏɴɪᴄ ɪs, ᴏʙᴠɪᴏᴜsʟʏ, sᴜᴘᴇʀsᴏɴɪᴄ ᴏɴ sᴛᴇʀᴏɪᴅs. ʙᴜᴛ ᴡʜɪʟᴇ "sᴜᴘᴇʀsᴏɴɪᴄ" ʜᴀs ᴛʜᴇ ᴄʟᴇᴀʀ ᴄᴜᴛ ᴅᴇғɪɴɪᴛɪᴏɴ ᴏғ ʙᴇɪɴɢ ғᴀsᴛᴇʀ ᴛʜᴀɴ ᴛʜᴇ sᴘᴇᴇᴅ ᴏғ sᴏᴜɴᴅ (ᴍᴀᴄʜ 1), ʜʏᴘᴇʀsᴏɴɪᴄ ɪs ᴀ ʟɪᴛᴛʟᴇ ғᴜᴢᴢɪᴇʀ. ... ɪɴ 2004, ᴛʜᴇ ᴜɴᴄʀᴇᴡᴇᴅ ɴᴀsᴀ x-43ᴀ sᴇᴛ ᴀ sᴘᴇᴇᴅ ʀᴇᴄᴏʀᴅ ᴀᴛ ᴍᴀᴄʜ 9.6, ᴏʀ 7,310 ᴍᴘʜ ᴀᴛ ᴀɴ ᴀʟᴛɪᴛᴜᴅᴇ ᴏғ ᴀʙᴏᴜᴛ 110,000 ғᴇᴇᴛ.

~ɦσρε เƭร ɦεℓρƒµℓ ƭσ µ



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