The explosion of the firecracker in the air at a height of
The explosion of the firecracker in the air at a height of 40m produces a 100 db sound level at the ground below. If the threshold of hearing is 10-12Wm-2, what is the instantaneous total radiated power, assuming that it radiates as a point source?
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the explosion of the firecracker in the air at a height of 40m produces a 100 db sound level at the ground below if the
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an electricity generating station has a rated output of 300 megawatts given that the station heat rate is 12 000kjkw-h
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