this picture represents the electric field diagram between two particles with static charges. do the two particles have the same charge? if the particles are free to move, what affect will the two particles have on each other? if a third particle was added to this field with a positive charge, what would it be attracted to? if an uncharged particle was placed between a and b, which way would it move?

Aleaky 10-kg bucket is lifted from the ground to a height of 15 m at a constant speed with a rope that weighs 0.7 kg/m. initially the bucket contains 45 kg of water, but the water leaks at a constant rate and finishes draining just as the bucket reaches the 15-m level. find the work done. (use 9.8 m/s2 for g.) show how to approximate the required work by a riemann sum. (let x be the height in meters above the ground. enter xi* as xi.) lim n → ∞ n (9.8)(45−3 xi) i = 1 δx express the work as an integral. 0 dx evaluate the integral. (round your answer to the nearest integer.) j