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    Lime25's Avatar
    Lime25 Posts: 12, Reputation: 1
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    #1

    Jul 1, 2010, 03:19 PM
    Wavelength
    What is the wavelength of a 500,000-kg asteroid heading at 20,000 meters per second toward the Earth?
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    Jul 1, 2010, 06:33 PM

    From de Broglie's wavelength equation:



    where h = Planck's constant and p = the object's momentum. Recall that momentum is mass times velocity. Can you take it from here?
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