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Homework Help: Speed of ultrasound

  1. Sep 21, 2008 #1
    i have a problem:

    ultrasound takes 70μs to go 100mm in soft tissue/ show that its speed is about 1400ms -1

    well i dont really know what fomulas to use but i would say putting 70μs x 10 power -6 so that is 0.000007 then im stuck...

    thanks in advance ;D
    Last edited: Sep 21, 2008
  2. jcsd
  3. Sep 21, 2008 #2
    Re: ultrasound

    A ball takes 5 seconds to go 10 meters. Show that it's speed is 2 meters per second.

    When you've done that, have another attempt at the original question.
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