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Q1. What is the purpose of calibrating the torsion balance? Can you find out the Coulomb constant without calibrating the balance and why?

Why do electrostatic experiments not work properly on humid environment?

Q2. Compute the acceleration of a 0.55m diameter car tire while the car is travelling at a constant speed of 25m/sec. b. compare this with the acceleration experienced by a jet car tire diameter 1 when setting a land speed record of 310m/sec.

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