The de Broglie wavelength of a 1-mg grain of sand being blown by the wind is 3 X 10...

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larryboy023

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...-29 m. What is the speed o? The de Broglie wavelength of a 1-mg grain of sand being blown by the wind is 3 X 10 -29 m.
What is the speed of the grain of sand? How significant are its wave properties likely to be?
 
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