Apositive point charge (q = +8.54 x 10-8 c) is surrounded by an equipotential surface a, which has a radius of ra = 2.98 m. a positive test charge (q0 = +4.62 x 10-11 c) moves from surface a to another equipotential surface b, which has a radius rb. the work done by the electric force as the test charge moves from surface a to surface b is wab = -8.03 x 10-9 j. find rb.

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-scientists plan in going deeper than 120 meters

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dec 23, 2016 - a load of bricks weighing 680 n a distance of 10 m across a parking lot. if if the worker pushes the cart with a constant force of 209 n, what work= force x distance = 220 n x 10 m = 2200 n.m = 2200 j i don't know where the person got it from, but the initial part, work= force x distance me.