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Q. What is the pressure (in kPa) exerted by an object that has a base which is 2.0 cm by 4.0 cm nd a weight of 45.0 N.

Q. In a laboratory experiment, nine equal negative point charges are placed symmetrically around the circumference of a circle of radius r. Calculate the magnitude of the electric field at the center of the circle.

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Reference No.:- M9221416

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