The electric potential at the dot in the figure is 3180 V . (Figure 1) You may want to review (Pages 705 - 706) . Figure 1 of 1> -5.0 nC 2.0 cm 4.0 cm 5.0 nC Part A What is charge q? Express your answer to two significant figures and include the appropriate

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Chapter1: Units, Trigonometry. And Vectors
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The electric potential at the dot in the figure is 3180 V.
(Figure 1)
You may want to review (Pages 705 - 706).
Figure
1 of 1
-5.0 nC
2.0 cm
4.0 cm
5.0 nC
Part A
What is charge q?
Express your answer to two significant figures and include the appropriate
HA
?
Value
Units
= b
Transcribed Image Text:The electric potential at the dot in the figure is 3180 V. (Figure 1) You may want to review (Pages 705 - 706). Figure 1 of 1 -5.0 nC 2.0 cm 4.0 cm 5.0 nC Part A What is charge q? Express your answer to two significant figures and include the appropriate HA ? Value Units = b
Expert Solution
Step 1

Part A

Consider the following figure which represents the position of all the charges and their distances from the dot.

Physics homework question answer, step 1, image 1

Here, r is the distance of the charge q from the dot.

In this case (see figure),

q1 = -5×10-9 C

r1 = 4 ×10-2 m

q2 = 5×10-9 C

r2 = 2×10-2 m

According to the geometry, the value of the r is calculated in the following way.

Physics homework question answer, step 1, image 2

 

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