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College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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You are driving toward a stationary siren that produces a sound of 100 Hz. While approaching it at 25 m/s you hear a frequency of 107 Hz, what is the temperature outside?
might need formulas: n1sinθ1=n2sinθ2
and v=331.3+0.6t... meaning- the speed of sound equals 331.3+ 0.6 (temperature)
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- 3. The VE3KBR transmitter near Tokyo broadcasts on a frequency of 146.940 MHz. The transmitter is broadcasting a test sound that is picked up by a nearby amateur radio. The test sound has a frequency of 1 kHz and a wavelength of 33 cm. a) What is the wavelength of the transmitter’s radio wave (in metres)? b) What is the speed of the sound wave that is coming out of the radio (in m/s)?arrow_forwardCalculate the speed of sound in air when the temperature is 16°C. m/s v = 332 m/s + |0.59 t °Carrow_forwardASK YOUR TEACHE DETAILS OBINPHYS8 6.P.009. ........................ ..... ************ l Verify the values given in the textbook for the wavelengths (in air) of the lowest and highest frequencies of sound that people can hear (20 and 20,000 Hz, respectively). (Round your answers to at least three significant figures in meters and assume air temperature to be 20°C.) lowest-frequency wavelength highest-frequency wavelength Submit Answerarrow_forward
- A microphone of surface area 2.0cm^2 absorbs 1.1mW of sound.what is the intensity of sound hitting the microphonearrow_forwardThe range of frequencies used for medical applications includes 1,646,125 Hz. What is the wavelength of this frequency in air at a temperature of 20.0°? 2. 入= x 10 marrow_forward30. A man drops a rock into a well and he hears the splash 3.00 seconds later. If the air temperature is 27°C, how far below the top of the well is the surface of the water? Assume that the speed of sound is constant, and you may ignore the effects of air resistance.arrow_forward
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