Potential Energy: Two tiny particles having charges q1 = +56.0 nC and q2 = -46.0 nC are separated by 0.500 m and held in place, as shown in the figure. A third particle, having a charge of 54.0 nC is placed at the point A, which is 0.18 m to the left of q2. How much work is needed to move the third particle from point A to point B, which is 0.40 m to the left of q1. All the points in the figure lie on the same line. (k = 1/4??0 = 9.0 × 109 N ? m2/C2) 
Fill in the blank(s) with the appropriate word(s).
8.2 × 10-5 J
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Indicate whether the statement is true or false
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A boat is floating in a small pond. The boat then sinks resting on the bottom, but the pond is so shallow that part of the boat is not submerged. What happens to the level of the pond?
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