Unit conversion for DeBroglie?

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Antonio Melgoza 2K
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Unit conversion for DeBroglie?

Postby Antonio Melgoza 2K » Sat Oct 03, 2015 5:55 pm

This is from Example 1.6 in the textbook.
"Calculate the wavelength of a particle of mass 1 g traveling at 1 ms"
The book changes 1 gram into 1 x 10^(-3), but I don't understand how they got 1 x 10^(-3). Can someone explain please?

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Re: Unit conversion for DeBroglie?

Postby Chem_Mod » Sat Oct 03, 2015 7:00 pm

The question requires you to use the de Broglie relation:

Remember that units of h are:

Since Planck's constant is given to you in units of kg, you must work in kilograms which is .

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