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In an acoustics lab you have a 120 m long pipe containing very cold air. Suppose that using a speaker you cause a sinusoidal wave of sound with frequency 150 Hz and wavelength 1.9 m to travel down the pipe.

i)How long does it take for your sinusoidal wave to travel from one end of the pipe to the other end of the pipe?

ii)What is the temperature of the air in the pipe?

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