At A and B, 20cm apart, we place 2 point charges qA= - 5.10 - 9 C, qB = 5.10 - 9C. Calculate the electric flux Edo that this system of charges sends through a sphere with center B, radius R = 10 cm.

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Anonzero net force acts on a particle and does work. which one of the following statements is true? the kinetic energy of the particle changes, but the speed of the particle does not change. the kinetic energy of the particle does not change, but the speed of the particle does change. the kinetic energy of the particle changes, but the velocity of the particle does not change. the kinetic energy and the speed of the particle change, but the velocity of the particle does not change. the kinetic energy, speed, and velocity of the particle change.