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Compute all parts of following problem:
Problem: An electron is held 2.10cm from a vertically aligned infinite charged plane and then released from rest. It accelerates toward the plane to the left and collides with a speed of 1.10 x 107 m/s.
Part I: What is the surface charge density of the infinite plane?
Part II: What is the magnitude of the electric field at 4.20cm from the plane?
Part III: What is the direction of the electric field at 4.20cm from the plane?
If possible just a brief explanation how you got the answer?
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