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Q. Find a formula for a electrical flux on a sphere for a point charge at the center of the sphere with a hole in the sphere.

Q. In a ballistics test, a 23.0 bullet traveling horizontally at 1300 goes through a 30.0 -thick 350 stationary target and emerges with a speed of 800 . The target is free to slide on a smooth horizontal surface. How long is the bullet in the target?

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