If an electron, which has a charge of 1.60 × 10–19 c, is moved from rest at a to rest at b, what is the change in electric potential energy of the electron? a) +4.3 × 10–15 j b) +5.4 × 10–15 j c) –2.1 × 10–14 j d) –3.2 × 10–14 j e) zero joules

e

explanation:

there is no change in the electric potential energy as it is in rest on both conditions.

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convex lenses are thicker at the middle. rays of light that pass through the lens are brought closer together (they converge). a convex lens is a converging lens. when parallel rays of light pass through a convex lens the refracted rays converge at one point called the principal focus.