Sound travels at VELOCITY of 345 m/s in air. A violin plays a note at FREQUENCY 412 (1/s). What is the WAVELENGTH of that sound in m?
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A: We know, Velocity is the product of frequency and wavelength
Q: sound travels at 1540 m/s in body tissue. If an ultrasound device sends out a frequency of 10 MHz,…
A: Given, Speed of wave, v = 1540 m/s Frequency of sound, f=10 MHz=10×106=107 Hz
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- The driver of a car traveling 24.0 m/s sounds his horn as he approaches an intersection. If the horn has a frequency of 655 Hz, what frequency does a pedestrian hear, if she is at rest at the intersection's crosswalk? Assume a sound speed of 343 m/s.The speed of sound in air is given as 340 m/s. What is the wave length of a 318 frequency wave?Two trains approach each other, each train traveling at 26 m/s. The engineer on one train sounds his horn which has a frequency of 163Hz. What frequency does a passenger on the second train hear? Use 340 m/s for the speed of sound in air
- The warning tag on a lawn mower states that it produces noise at a level of 99.0 dB. What is this in W/m2?On the planet Venus a rare volcanic eruption occurs. The sound of it is 30 Hz and it has a wavelength of 13.7 m. How fast must the speed of sound be on Venus?People with good hearing can perceive sounds as low in level as -9.00 dB at a frequency of 2700 Hz. What is the intensity of this sound in watts per meter squared?
- A 38.0-Hz sound wave is barely audible at a sound intensity level of 60.0 dB. The density of air at 20.0°C is 1.20 kg/m3. Speed of sound in air at 20.0°C is 343 m/s. What is the displacement amplitude of a 38.0-Hz sound wave? What is the ratio of the displacement amplitude to the average distance between molecules in air at room temperature, about 3.00 nm?An opera singer in a convertible sings a note at 650 HzHz while cruising down the highway at 91 km/hkm/h . The speed of sound in the air is 343 m/sm/s. What is the frequency heard by a person standing beside the road in front of the car?a medical imaging system sends a soundwave through a piece of bone. the speed of sound through bone is 3500 m/s. if it takes 275 microseconds for the sound wave to make a round trip back and forth across the bone, what is the thickness of the bone?
- Someone hits a cold metal pipe with a hammer, and it produces a sound with a frequency of 360.0 Hz. If the surrounding air is 15.0 ̊C, what is the wavelength of the sound wave?The fundamental frequency of a closed pipe is 200Hz. What is the frequency of first overtone?The intensity of a certain sound wave is 4.0 x 10-4 W/m2. If the intensity level of the sound increases by 30 dB, the intensity has increased to which of the following: 1.2 x 10-2 W/m2 4.0 x 10-2 W/m2 4.0 x 10-1 W/m2 1.33 x 10-1 W/m2