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12-11. Estimate the increase in tissue temperature when 0.15 cm volume of
tissue is exposed to 12 W of ultrasound for 1 s. Assume that the den-
sity of the tissue is 1 g/cm', the specific heat (or heat capacity) is
1 cal g1 °C, and the amount of heat conducted away from the
heated area during the 1 s pulse interval is negligible.

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