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Assignment (02) Introduction to Electric Charges and Electric Field (2) Text book, chapter 21, electric chargers and electric field Problems, page 585/586 [4] What is the repulsive electrical force between two protons 4.0 X 10-15m apart from each other in an atomic nucleus? [7] Two charged spheres are 8.45 cm apart. They are moved, and the force on each or them is found to have been tripled. How far apart arc they now? [15] A charge of 4.15 mC is placed at each corner of a square 0.100 m on a side. Determine tl1e magnitude and direction of the force on each charge[16] two negative and two positive point charges magnitude Q = 4.15 mC, arc placed on opposite comers of a square as shown in . Determine the magnitude and direction of the force on each charge. -1 / 1 -