Q1 two small charged metal spheres a and b are situated in

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Q1. Two small charged metal spheres A and B are situated in a vacuum. The distance between the centres of the spheres is 12.0cm. State the evidence that

(1) Spheres are conductors.

(2) Charges on the spheres are either both positive and both negative.

Q2. A spring is mounted horizontally on an air track, with the left end held stationary. While a force of 6.0 N is applied, pulling the spring to the right, the elongation of the spring is 0.030m from its equilibrium position. What is the force constant of the spring?

Q3. A bullet of mass 7.00 is fired horizontally into a wooden block of mass 1.26 resting on a horizontal surface. The coefficient of kinetic friction between block and surface is 0.240. The bullet remains embedded in the block that is observed to slide a distance 0.230 along the surface before stopping.

Reference no: EM13350829

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