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1.6b
Posted: Fri Oct 13, 2017 3:02 pm
by JasonNovik3A
Calculate the wavelength of a rifl e bullet of mass 5.0 g traveling at twice the speed of sound (the speed of sound is 331 m$s#1).
Can someone explain how to do this problem?
Re: 1.6b
Posted: Fri Oct 13, 2017 9:09 pm
by William Lan 2l
use the equation (lambda = h/p)......h is Planck's constant (6.626 x 10^-34) and p is momentum (mass x velocity). So with the given mass of the bullet and the velocity, calculate the momentum. Then do Planck's constant/momentum and you will get wavelength.
I hope this helps
Re: 1.6b
Posted: Thu Oct 19, 2017 11:36 am
by Rana YT 2L
make sure that when you're calculating it using the bohr relationship that you convert the values into kilograms and m/s before you calculate the wavelength.