- #1
carus88
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Calculate the velocity and kinetic energy of a neutron (mass 1.675x10-27kg) that has a wavelength of 0.2nm. How does this compare to the average kinetic energy of a gas molecule at room temperature (0.038eV at 200C)?
1. E=mc^2
2. KE = 1/2 mv^2
I used 1. to calculate the energy which was 1.51 x10^-10 J
Then i subbed the energy into 2. and got a velocity of 4.24 x10^8 m/s
LOL obviously I'm going wrong some where how can a neutron be going faster than light!
CAN SOMEONE HELP PLEASE?
1. E=mc^2
2. KE = 1/2 mv^2
I used 1. to calculate the energy which was 1.51 x10^-10 J
Then i subbed the energy into 2. and got a velocity of 4.24 x10^8 m/s
LOL obviously I'm going wrong some where how can a neutron be going faster than light!
CAN SOMEONE HELP PLEASE?