Suppose eight identical charges with chargeQare equallyspaced on a circle of radiusR.(a)Find the acceleration(magnitude and direction) of a particle with chargeqandmassmat the center.(b)Suppose we remove the three right-most charges (the green ones). What would the accelerationbe now

Iwannasay c is the most accurate

W= fd
where f is an applied force and d is the distance over which it is applied. when a parachuting skydiver is at constant velocity, he is experiencing "terminal velocity", the point at which his acceleration down is canceled out by air resistance. that means that the resisting force of the air is equal to his weight, but in the opposite direction. with this, we can solve for the work done by the force.
w = fd
w = (92.0)(9.81 m/s^2) (325)
w= 2.93 x 10^5 j
the value for work in this case is positive because it is pushing up on the skydiver, who has a downward force of gravity.
therefore the answer is 2.93 x 10^5 j

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