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Q. Three charges are situated at corners of a rectangle. How much energy would be expended in moving the 8.0 µC charge to infinity?

Q. A small steel ball bearing with a mass of 29g is on a short compressed spring. When aimed vertically and suddenly released, the spring sends the bearing to a height of 1.33 m. Calculate the horizontal distance the ball would travel if the same spring were aimed 26^o from the horizontal.

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Category:- Physics
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