A pressure wave traveling through air is described by the following function 𝑝(𝑥,𝑡) in terms of

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A pressure wave traveling through air is described by the
following function 𝑝(𝑥,𝑡) in terms of position 𝑥 and time 𝑡.
𝑝(𝑥,𝑡)=(1.0 atm)sin[(9.0 rad/m)𝑥−(6.0 rad/s)𝑡]
What is the pressure amplitude 𝑝max of the wave?
What is the wave number 1𝜆 of the wave?
What is the frequency 𝑓 of the wave?
What is the speed 𝑣p of the wave?