Find the electric field and the electric potential

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Reference no: EM1347410

Q. The charge Q of a non conducting ball with the radius R is uniformly distributed within the volume V of the ball calculate the electric field and the electric potential within this ball. The potential at the centre of the ball is 0V.

Q. To give a 18 kg child a ride, two teenagers pull on a 3.4 kg sled with ropes, as indicated in the figure. Both teenagers pull with a force of F = 51 N at an angle of 35° relative to the forward direction, which is the direction of motion. In addition, the snow exerts a retarding force on the sled that points opposite to the direction of motion, and has a magnitude of 57 N. Find the acceleration of the sled and child.

Reference no: EM1347410

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