Using a = 1052 + 1.08*t, at which of the following air temperatures will the speed of a sound wave be closest to 1000 feet per second?
A-46 F
B-48 F
C-49 F
D-50 F
Answer & Solution
Correct answer: B. -48 F
Set a = 1000: 1000 = 1052 + 1.08*t -> 1.08*t = -52 -> t = -48.148... F. Closest among options is -48 F.
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