Question:

The musical note A has a freq of 440 Hz and its wavelength in seawater is 3.5 m. The speed of sound?

by  |  earlier

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in seawater is?

a. 80 m/s

b. 126 m/s

c. 3 x 10 8 m/s

d. 1540 m/s

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3 ANSWERS


  1. Well golly..  if it's 440 per second, and 3.5 m each, that's.. uh. ... D, yeah that's it.  Why'd you bother to ask such a bonehead question.. can't multiply??


  2. 440 * 3.5 = ?

  3. It appears to travel at 1540 m/s at a depth of about 5 km.

    http://en.wikipedia.org/wiki/Image:SOFAR...

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