Chemistry, 18.09.2019 23:10 lauraabosi
Three positive charges lie on the x axis: q1 = 1 × 10−8 c at x1 = 1 cm, q2 = 2 × 10−8 c at x2 = 2 cm, and q3 = 3 × 10−8 c at x3 = 3 cm. the potential energy of this arrangement, relative to the potential energy for infinite separation, is about:
1. 0j2. 0.16j3. 0.079 j4. 0.00085 j5. 0.0017j
Answers: 2
![\frac{1}{4 \pi \epsilon_{o}}[\frac{q_{1}q_{2}}{r_{12}} + \frac{q_{2}q_{3}}{r_{23}} + \frac{q_{3}q_{1}}{r_{31}}]](/tpl/images/0241/1476/8c7e5.png)
, 
, and 
. 
(as 1 cm = 0.01 m)![9 \times 10^{9} [\frac{1 \times 10^{-8} \times 2 \times 10^{-8}}{10^{-2}} + \frac{2 \times 10^{-8} \times 3 \times 10^{-8}}{10^{-2}} + \frac{3 \times 10^{-8} \times 1 \times 10^{-8}}{10^{-2}}]](/tpl/images/0241/1476/33bac.png)
![9 \times 10^{9} [2 + 6 + 1.5]](/tpl/images/0241/1476/ffcf8.png)
J
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Three positive charges lie on the x axis: q1 = 1 × 10−8 c at x1 = 1 cm, q2 = 2 × 10−8 c at x2 = 2 c...
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