- #1
shawshank
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electron together
2 electrons are fired at speed v towards one another. Knowing that each electron has a charge of e an mass m, what is the minimum distance that the two electrons will reach after fired at one another?
My book has a different answer than me so I have to check with you guys.
I wrote, -dE = dEk
-(E2 - E1) = (Ek2 - Ek1) - Ek2 is zero to for minimizing radius, and we assume E1 to be zero.
E2 = Ek1
2ke^2/r =mv^2
2ke^2 / mv^2 = r
Now in our book, they had this question with numbers, i derived this formula and plugged in my values and it didn't match the answer in the book.
2 electrons are fired at speed v towards one another. Knowing that each electron has a charge of e an mass m, what is the minimum distance that the two electrons will reach after fired at one another?
My book has a different answer than me so I have to check with you guys.
I wrote, -dE = dEk
-(E2 - E1) = (Ek2 - Ek1) - Ek2 is zero to for minimizing radius, and we assume E1 to be zero.
E2 = Ek1
2ke^2/r =mv^2
2ke^2 / mv^2 = r
Now in our book, they had this question with numbers, i derived this formula and plugged in my values and it didn't match the answer in the book.
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