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Search ll ? 1:04 PM phystwohwfive.pdf 2 of 2 (e) At a certain location, the electric field due to the excess charge on the Earth's surface points downward. What is the sign of the charge on the Earth's surface at that location? Explain . The distance between beighboring singly charged sodium and chlorine ions in crystals of table salt (NaC) is 2.82 × 10-30m. What is the attractive force between the ions. The sodium ion has a net charge of +1g and the chlorine ion has a net charge of-1q 8. Two charges, and . are located at the origin and at (0.50m.0), respectively Where on the r-axis must a third charge, gs of arbitrary sign be placed to be in (a) and (b) g and are like charges of equal magnitude, are unlike charges of equal magnitude, I am going to carefully consider your work on this problem. 9. (a) An electron is acted on by two electric forces, one o 2.7 x 10-"N acting upward and a second of 3.8 x 10-WN acting to the right What is the magnitude and direction of the electric ield at the electron's location (b) What are the magnitude and direction of the electric field at a point 0.75 away from a point charge of +2.0pC? 10. Two fixed charges4.0pC and-5.0C, are separated by a certain distance (a) Halfway between the two charges what is the direction of the electric fel (b) If the charges are separated by 20cm, cakulate the magnitude of the net electric field halfway between the charges Open With Print

Answer 1