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A family ice show is held in an enclosed arena. The skaters perform to music playing at a level of 79.0 dB. This intensity level is too loud for your baby, who yells at 77.5 dB.
(a) What total sound intensity engulfs you?
W/m2
(b) What is the combined sound level?
dB
A sample of an ideal gas has a volume of 0.0100 m3, a pressure of 100 103 Pa, and a temperature of 300 K. What is the number of moles in the sample of gas
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