Ultrasound of intensity 1.55 × 10⁻² W/m² is produced by the rectangular head of a medical imaging device measuring 3.00 cm by 4.80 cm. What is its power output (in W)?
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Step 1
Given: Length = 3.00 cm = 3.00 x 10^-2 m Width = 4.80 cm = 4.80 x 10^-2 m Area = Length x Width Area = (3.00 x 10^-2 m) x (4.80 x 10^-2 m) Area = 14.4 x 10^-4 m^2 Area = 1.44 x 10^-3 m^2 Show more…
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