alleryStart learning →Newton's formula gives the speed of sound in air at NTP as about
A332 m/s
B343 m/s
C280 m/s
D300 m/s
Answer & Solution
Correct answer: C. 280 m/s
Evaluating sqrt(P/density) with 0.76 m Hg and 1.293 kg/m3 for air gives 279.9 m/s.
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