Calculate the amplitude of the particle velocity
A point source generating a spherical sound wave at 50Hz, gives a sound pressure level of 96dB re 20uPa at a distance r=5m from the source. Calculate the amplitude of the particle velocity at r=3m from the source.
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Jinbao produces tubas and ships them in lots of twenty. Suppose that 60% of all such lots contain no defective tubas, 30% contain one defective, and 10% contain two defectives. Now suppose that a lot is inspected, with two tubas being selected fro
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