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a thin glass rod forms a semicircle of radius r
Автор: WNY Tutor
Загружено: 2016-07-06
Просмотров: 66790
Описание:
In the figure, a thin glass rod forms a semicircle of radius r = 5.00 cm. Charge is uniformly distributed along the rod, with +q = 4.50 pC in the lower half and –q = -4.50 pC in the lower half. What are the (a) magnitude and (b) direction (relative to the positive direction of the x axis) of the electric field E at P, the center of the semicircle?
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