5) What part of the ultrasound wave reflects off the bone-muscle boundary? Bone density is 2700 kg/m', muscle tissue density - 1050 kg/m'. a) 25%; b) 35%; c) 45%; d) 55%; e) 65%.
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Ответил inchureajinkya45
0
Ответ:B-35%
Объяснение:
Just find the reflection coefficient that is by finding intensity ratio
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