11. In the diagram to the right, what identical value of charge must object A an

Question

11. In the diagram to the right, what identical value of charge must object A and object B have in order for object A to float 5cm above object B? Object A has a mass of 0.15. Treat the object as point charges .Gravity is not negligible.

15.At points 2 and 3 draw an electric field vector with the proper directions with magnitude (length) that is proportional to the electric field strength at that point. Point 1 electric field. direction and magnitude is shown for your reference. show your calculation for each magnitude in terminus of E1. Hint; how is the magnitude of the E field related to the distance from the change?

Explanation / Answer

11) to float mg = k q^2/r^2

0.15*9.81 = 9.0E9*q^2/0.05^2

q=6.39E-7 C

15) you didnt define what points 2 and 3 are.

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