A charge of -3.10 nC and a charge of -6.65 nC are separated by a distance of 80.0 cm. Find the position at which a third charge of +7.10 nC can be placed so that the net electrostatic force on it is zero.
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Starting from rest, the car is going 39 ft/s (27 mi/h) at the end of 5.0 s. What is the car's average acceleration in ft/s2
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