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What is the period of an ultrasound signal that is attenuated by 20 dB after it travels 4 cm into soft tissue

What is the period of an ultrasound signal that is attenuated by 20 dB after it travels 4 cm into soft tissue
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What is the period of an ultrasound signal that is attenuated by 20 dB after it travels 4 cm into soft tissue

User Shayla
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Answer:

2 × 10^−7 s

Step-by-step explanation:

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