Mechanical Kinetic Energy vs Electrical Potential Energy

1. Jun 14, 2004

jg370

2. Jun 14, 2004

jdavel

jg370,

Well you're very close to the answer. You've got a tiny mistake here (on the RHS):

$$-\frac{Ze}{{4\pi\varepsilon_o r}} = m\frac{v^2}{2}$$

If you fix it and then write the general equation for KE, I think you'll see the answer.

3. Jun 14, 2004

e(ho0n3

As jdavel said, check the expression on the RHS. This sort of 'coding' error (if you will) left me stumped on a problem which was just recently cleared up for me here. I better start getting in the habit of proof-reading my work. I suggest you do the same.

4. Jun 15, 2004

JohnDubYa

By the way, the result in this problem is called the Virial Theorem.

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