age of 24 Question 24 ✓ Saved How does noise cancelling headphone work? Explain in detail and give an occupation that need noise cancelling headphone. (3)
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- QUESTION 6 Lawrence of Arabia begins to sing while traveling through the desert by camel. As the result of a distant mesa reflecting sound, he hears the echo of his voice 4.0 s later. How far away is the mesa? (Assume that the speed of sound in air in the desert where he is located is 355 m/s.) a. 900 m b. 355 m O c. 500 m d. 710 m e. 400 mBoth parts are very confusing for me could I get a broken down response for all steps for both a and bPHYSICAL SCIENCE PLEASE SIMPLIFY Bats use ultrasonic waves for echolocation. What is the frequency of a sound in kHz of a sound wave emitted by a bat that has a wavelength of 7.35 mm? The speed of sound in air is 344 m/s.
- frequency with pipes open/closed2. use it to calculate a frequency table for variable C.Do the frequencies in the table you calculated match with those shown below? +----------------------------------------------------------------------------+ | X: 124 125 126 127 128 129 130 131 132 133 134 | |------------------------------------------------------------------------------| | f(X): 31 20 30 21 32 29 18 39 25 18 34 | +----------------------------------------------------------------------------+ 129 124 130 124 134 128 133 125 125 125 126 128 130 125 124 132 134 130 129 130 128 129 125 127 127 132 126 126 124 129 124 133 130 128 132 129 134 132 129 130 130 134 126 133 132 126 132 124 133 134 126 131 133 131 129 127 128 131 132 131 126 131 133 125 130 132 126 129 131 132 124 133 124 128 129 126…i need the answer quickly
- Compare the following two waves a microwave moving through space with a wavelength of 15cm, and a sound wave moving through the air with the same wavelength. Which wave has more frequency, or are they the same? You can assume the speed of sound in air is 340m/s nis c act C the bai Send aas PMPrevious Page Next Page Page 19 of 24 Question 19 Lithotripsy is a procedure that uses high frequency sound waves to destroy kidney stones. Explain the physics behind this medical procedure. Paragraph ... V B I A EVE KY Lato (Recom... ✔ I 19px V e> +The change of impedance during the travel of a wave through/off twodifferent media (in direct contact) is important because it determines: A) the amplitude of the diffracted waveB) the change of the wave’s travel speed in each mediumC) the change of mass density in each mediumD) the amplitudes of the reflected and transmitted waves