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This be for the math and physics geeks out there	by frogboy	2003-02-27 16:58:45
Perhaps you can tell me what the heck I'm doing wrong. I've got a gram of hydrogen that's ripped apart and the component electrons and protons placed at opposite poles of the Earth. I have to find the compressive force on the planet. So I find the charge for particle group. 1g H is nearly a mol so I multiply that by avagadro's constant to get the number of particles. I then multiply by the charge for an individual particle; this came out to 95.6kC and -95.6kC. Then I shove it in the formula for electric force: F=(\|q1\|\|q2\|)/r^2 r is in this case the diameter of the earth, which squared came to 162Tm^2. Then I multiply the charges by each other, this was 9.14GC^2. Then I divided the two and came up with 56.4 micro-Newtons. However, I heard my teacher telling a student that the force was quite substantial, so obviously I'm very,very, wrong.
[ Reply ]
Given the distance,	by LionsPhil	2003-02-27 17:06:17
Relative to gravity, of course,	by frogboy	2003-02-27 17:08:41
Oh.	by LionsPhil	2003-02-27 17:10:10
Sounds right	by Egaeus	2003-02-27 17:09:06
Isn't the relation	by Pic	2003-02-27 17:13:07
Yes...yes it...i s.	by frogboy	2003-02-27 17:17:20
Hey!	by Llyr	2003-02-27 17:50:27
Some generic advice:	by anymouse	2003-02-27 18:07:34
Yep. Very good advice.	by Avium	2003-02-27 20:20:10

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