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Q1. Charge A and charge B are 2.5 m apart. Charge A is 1.4C and charge B is 2.5C. Charge C, which is 2.0 C, is situated between them and force on charge C is zero. How far from charge A is Charge C?

Q2. A proton with mass 1.79*10-27 kg is propelled at an initial speed of 2.25*105 m/s directly toward a uranium nucleus 4.39 m away. The proton is repelled by the uranium nucleus with a force of magnitude F = a/x2 where x is the separation between the two objects and a = 2.69 *10-26 Nm2. imagine that the uranium nucleus remains at rest. What is the speed of proton when it is 7.83 *10-10 m from nucleus?

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