Wednesday

November 26, 2014

November 26, 2014

Posted by **Alyssa** on Tuesday, January 15, 2013 at 10:41pm.

Find the force on the ﬁrst charge.

The value of the Coulomb constant is

8.98755 × 10^9 N · m^2/C^2.

- Physics -
**Elena**, Wednesday, January 16, 2013 at 6:40amk=8.98755 × 10^9 =9•10 ⁹N • m^2/C^2.

q1=−6 µC, q2 =7 µC, q3 =-5 µC

F12=k•q1•q2/r1²=9•10⁹•6•10⁻⁶•7•10⁻⁶/9 =….

(to the right)

F13=k•q1•q3/r2²=9•10⁹•6•10⁻⁶•5•10⁻⁶/36 =…

(to the left)

F=F12-F13=…

(to the right)

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