The variation in the pressure of helium gas, measured from its equilibrium value, is given by ?P = 2.9 × 10^?5 cos (6.20x ? 3 000t) where x and t have units m and s, and ?P is measured in N/m2 . Determine the wavelength (in m) of the wave
a. 1 500
b. 0.32
c. 477
d. 1.01
e. 0.50
d
Physics & Space Science
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a. 
b. 
c. 
d. 
e. 
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