Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Anonymous asked in Science & MathematicsPhysics · 2 months ago

Physics Question?

A room is at standard temperature and pressure. 

a) What wavelength does a 1.5 million Hz ultrasound passes through human tissue? b) How many waves are passing through the human tissue in 1 second? 

c) The ultrasound session last 1 minute. How many waves passed through the human tissue during this timeframe? 

d) Which example best describes this type of wave -- water, light, spring, sound, sonic boom, pulse, pulse wave packet?

 Explain your answer. 

1 Answer

  • 2 months ago

    speed of sound at 0º is s = 331.3 m/s

    λf = s

    λ = s/f = 331.3/1.5e6 = 0.0002209 m

    1.5e6 Hz means 1.5e6 waves per second

    1.5e6 waves/s x 60s = 9e9 waves (9 billion)


Still have questions? Get your answers by asking now.