1.41  [ENDORSED]


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tmehrazar
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Joined: Fri Apr 06, 2018 11:04 am

1.41

Postby tmehrazar » Sun Apr 15, 2018 8:01 pm

What is the velocity of a neutron of wavelength 100.pm?

Do we have enough info to answer this question?
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Shione Nakahara 1F
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Joined: Fri Apr 06, 2018 11:04 am

Re: 1.41  [ENDORSED]

Postby Shione Nakahara 1F » Sun Apr 15, 2018 8:49 pm

yes, use the de brogile's equation (lambda = h/mv). solve for v the velocity, because you were given the wavelength (lambda= 100picometers) in the problem , and both h (plancks constant) and m (mass of neutron) are constants. :)
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Steve H
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Joined: Fri Apr 06, 2018 11:03 am

Re: 1.41

Postby Steve H » Wed Apr 18, 2018 11:33 pm

An equation that really helped me is that velocity=h/m x wavelength
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tmehrazar
Posts: 39
Joined: Fri Apr 06, 2018 11:04 am

Re: 1.41

Postby tmehrazar » Wed Apr 18, 2018 11:49 pm

thanks guys this helped! (:
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