5) An ultrasound wave with an intensity of 46,500 watts per square meter and a frequency...
Diagnostic ultrasound of frequency 3.48 MHz is used to examine tumors in soft tissue. (a) What is the wavelength in air of such a sound wave? (b) If the speed of sound in tissue is 1380 m/s, what is the wavelength of this wave in tissue? (Take the speed of sound in air to be 343 m/s.)
Compute the wavelength in air of ultrasound with a frequency of 53 kHz if the speed of sound is 344 m/s
4. Your ears detect a sound wave with a frequency of 315 Hz and a sound intensity level of 80 dB. It originated in a vibrating string with a length of 1.9 meters. A) Waves can be longitudinal or transverse. What is the difference between these two kinds of waves? B) This question has one longitudinal wave and one transverse wave. Identify them. C) Recall that the sound you hear from a string is the fundamental frequency, which has a...
A sound wave a frequency of 20 kHz emerges through a circular opening that has a diameter of 0.78 m. Concepts: The diffraction angle for a wave emerging through a circular opening is given by sin(theta) = 1.22 /D, where is the wavelength of the sound and D is the diameter of the opening. What is meant by the diffraction angle? the angle that the sound wave bends away from the center before passing through the opening the location of...
Medical ultrasound. Ultrasound with f = 4.7 MHz is used in a medical imager. Find the wavelength in air, with sound speed 343 m/s. Find the wavelength in muscle tissue, with v = 1580 m/s.
A sound wave with a frequency of 12.6 kHz emerges through a circular opening that has a diameter of 0.217 m. Find the diffraction angle θ when the sound travels (a) in air and (b) in water. (Note: The speed of sound in air is 343 m/s and the speed of sound in water is 1482 m/s.)
A sound wave with a frequency of 12.1 kHz emerges through a circular opening that has a diameter of 0.212 m. Find the diffraction angle θ when the sound travels (a) in air and (b) in water. (Note: The speed of sound in air is 343 m/s and the speed of sound in water is 1482 m/s.)
A sound wave in a solid has a frequency of 45.0 kHz and a wavelength of 0.333 m. What would be the wave speed, and how much faster is this speed than the speed of sound in air? (The speed of sound in air is 344 m/s.) speed of sound in solid m/s speed of sound in solid speed of sound in air
What intensity I1 corresponds to 20.0 dB ? Express your answer in watts per square meter. You are trying to overhear a most interesting conversation, but from your distance of 10.0 m , it sounds like only an average whisper of 20.0 dB . So you decide to move closer to give the conversation a sound level of 60.0 dB instead. How close should you come? View Available Hint(s) IVALO ? 11 = 9.9 W/m² Submit Previous Answers X Incorrect;...
Solar radiation still has an intensity of 1367 watts per square meter at the top of Earths atmosphere, and Earth has a radius of 6370 km. How many photons hit Earth per second? You may assume that all of the photons are at the sun’s peak wavelength, 500 nm.