Multiple Choice
The variation in the pressure of helium gas, measured from its equilibrium value, is given by ΔP = 2.9 × 10−5 cos (6.20x − 3 000t) where x and t have units m and s, and ΔP is measured in N/m2. Determine the frequency (in Hz) of the wave.
A) 1 500
B) 477
C) 1.01
D) 0.32
E) 239
Correct Answer:
Verified
Correct Answer:
Verified
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