ch22_p15 - 15. The field of each charge has magnitude E=k e...

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Ek e == × 0 020 36 10 2 6 . .. m NC b g The directions are indicated in standard format below. We use the magnitude-angle notation (convenient if one is using a vector-capable calculator in polar mode) and write (starting with the proton on the left and moving around clockwise) the contributions to G E net as follows: EE E E E −° +∠ ° +∠ − ° ° 20 130 100 150 0 b g b g b g b g b g . This yields 393 10
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