How many minutes should each therapy session last

Reference no: EM13498125

A mad doctor believes that baldness can be cured by warming the scalp with sound waves. His patients sit underneath the Bald-o-Matic loudspeakers, where their heads are bathed with 93 dB of soothing 800 Hz sound waves. Suppose we model a bald head as a 16cm diameter hemisphere.

If 0.20J of sound energy is considered an appropriate "dose," how many minutes should each therapy session last?

Reference no: EM13498125

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