7. A wave has a frequency of 46 Hz and a wavelength of 1.7 m. What is the speed of this wave?
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- A bat uses echolocation to detect prey as small as about 1 wavelength of the sound of a bat call. Assume a bat produces a sound with a frequency of 59.3 kHz, and the speed of sound in air is 339 m/s. What is the length (in mm) of the smallest prey the bat can detect? mmThe speed of sound is approximately 340 m/s. A certain sound wave has a wavelength of 5.0 m. What is the frequency of the sound? The period of this wave?30 m from an ultrasonic sensor. The total travel time of the ultrasonic wave is 33 ms (milliseconds). What is the speed of sound in these conditions?
- 3. Bats emit ultrasonic waves with a frequency as high as 2.000 ×105 Hz. What is the wavelength of such a wave in air of temperature 25.00°C? in mmWhat is the frequency of a wave which has a period of57500 s?2.A.0.00001386 HzD.0.00001908 HzB.0.00001739 HzE.0.00001775 HzC.0.00002115 HzF.0.00001999 HzA supersonic airplane has a speed of 1.5 times the speed of sound. If an observer is 5 km from the plane, how long will it take to hear the plane's sound? (It is known that the speed of sound in air is 335 m/s) a. 10.0 seconds b. 11.1 seconds c. 14.9 seconds d. 16.4 seconds e. 17.1 seconds
- A 5.6 Hz continuous wave travels on a Slinky. If the wavelength is 0.65 m, what is the speed of waves on the Slinky (in m/s)? m/s5. A jogger runs at 9 m/s, and is trailed by a bumblebee moving at 5 m/s and emitting a frequency of 270 Hz. What frequency does the jogger hear if the speed of sound in air was 336 m/s? V=V Soos = S source (V 1 V 205) f=f Source S = ? V= 11A.)A wave has a speed of 260.0 m/s and a wavelength of 5.2 m. What is the frequency of the wave? B.)What is the period of the wave? .