Compute all parts of given problemproblem a forward

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Compute all parts of given problem:

Problem: A forward - curve centrifugal fan has 32 blades and rotates at 3000 rpm. It delivers 5000 cfm of air with a static pressure of 5 in of water.

Part A: Find the blade passing frequency and its first 2 harmonics?

Part B: Find the octave band sound power level?

Part C: Find the overall sound power level?

Please show all work and steps to determine the octave band sound power level.

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