Monday
December 22, 2014

Homework Help: physics

Posted by Christine on Sunday, March 20, 2011 at 8:58pm.

1.) A small sphere of charge 2.4 μC experience a force of 0.36 N when a second sphere of unknown charge is placed 5.5 cm from it. What is the charge of the second sphere?

2.) Two identically charged sphere placed 12 cm apart have an electric force of0.28 N between them. What is the charge of each sphere?

3.) In an experience using Coulomb's apparatus, a sphere with a charge of 3.6x10^-8 C is 1.4 cm from a second sphere of unknown charge. The force between the spheres is 2.7x10^-2 N. What is the charge of the second sphere?

4.) The force between a proton and an electron is 3.5x10^-10 N. What is the distance between these two particles

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