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Q. A uniform diving board, of length "(X)" m and weight 400 N, is supported at two points; one support is located "(3X/4)" from the end of the board and the second is at "(X/4)" from the end. What are the forces acting on the board due to the two supports when a diver of mass 75 kg stands at the end of the board over the water? Assume that these forces are vertical.

Q. An electric field of intensity 2.5 kN/C is applied along the x-axis. Calculate the electric flux through a rectangular plane 0.350 m wide and 0.70 m long if the following conditions are true:

(a) The plane is parallel to the yz-plane.
(b) The plane is parallel to the xy-plane.
(c) The plane contains the y-axis, and its normal makes an angle of 45° with the x-axis.

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