Asked by hey
the mass of a proton is 1836 times the mass of an electron
a)a proton is traveling at speed v. at what speed (in terms of v) would an electron have the same kinetic energy as the proton?
b) an electron has kinetic energy K. if a proton has the sane speed as the electron. what is the kinetic energy ( in terms of K)
a)a proton is traveling at speed v. at what speed (in terms of v) would an electron have the same kinetic energy as the proton?
b) an electron has kinetic energy K. if a proton has the sane speed as the electron. what is the kinetic energy ( in terms of K)
Answers
Answered by
Steve
(a) You want
1/2 m<sub>e</sub>v<sub>e</sub>^2 = 1/2 m<sub>p</sub>v<sub>p</sub>^2
so that means that
v<sub>e</sub>^2/v<sub>p</sub>^2 = m<sub>p</sub>/m<sub>e</sub> = 1836
v<sub>e</sub> = √1836 v<sub>p</sub>
(b) that would of course be 1836K
1/2 m<sub>e</sub>v<sub>e</sub>^2 = 1/2 m<sub>p</sub>v<sub>p</sub>^2
so that means that
v<sub>e</sub>^2/v<sub>p</sub>^2 = m<sub>p</sub>/m<sub>e</sub> = 1836
v<sub>e</sub> = √1836 v<sub>p</sub>
(b) that would of course be 1836K
Answered by
Maitry
Above answer is wrong it’s related to force between two forces
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