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How fast is Mach 1?
Question 1:
How fast is Mach 1?
A.
1207 kilometers per hour
B.
1207 meters per hour
C.
1207 feet per second
D.
1207 miles per hour
These questions are from this test. Would you like to take a practice test?
Trivial Practice Quiz science-technology - Test 101 | Englishfreetest.com
30 minutes
15 questions
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