1 The mass of an electron is 9.11X10^-31 kg . If the de Broglie wavelength for an electron in a hydrogen atom?
1
The mass of an electron is 9.11X10^-31 kg . If the de Broglie wavelength for an electron in a hydrogen atom is 3.31x10^-10 m, how fast is the electron moving relative to the speed of light? The speed of light is 3.00x10^8 m/s. Express your answer numerically as a percentage of the speed of light.
2
The mass of a golf ball is 45.9 g. If it leaves the tee with a speed of 65.0 m/s, what is its corresponding wavelength? Express your answer numerically in meters.
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Verified answer
1. 0.732%
2. 2.29*10^-34
Mass Electron Kg
enable lambda = the de Broglie wavelength. Momentum = Momentum consequently h/lambda = mass * velocity consequently velocity = h/(mass*lambda) replace the given values and the respond is 8.4 x 10^6 m/s
The answers 2.41x10^-34 m
Ella was right on the first part of 0.73%
but i got 2.03*10^-34 m as the answer on the second part and it was right.
1.) 0.732%
2.) 2.37 x 10^-34
Avianna the true mvp
2. 6.63 x 10^-34J.s/(.0459kg)(1s/65.0m)(1 kg*m^2/s2 / 1J)
=2.22x10^-34