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10 June, 08:39

The highest pitched sound that a human ear can detect is about 21 kHz. on the other hand dolphins can hear ultrasound with frequencies up to 280 kHz. what is the speed of sound in water if the wavelength of ultrasound with a frequency of 2.80 x 10^5 Hz is 0.510 cm?

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  1. 10 June, 09:26
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    The speed of sound (v) is dependent on frequency and wavelength.

    lambda = 0.510 cm = 5.10 * 10^-3 m

    f = 2.8*10^5 Hz

    v = 2.8 * 10^5 * 5.10 * 10^-3

    v = 1428 m/s
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