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710jonathan
11.10.2020 •
Physics
An object has a 15 N force and a 10 N force applied in the negative y-direction, and a 5 N and 10 N force applied in the positive y-direction. What is the net force in the y-direction, Fnety, equal to? Enter only a numerical value for your answer. (include the correct sign +/- on your answer)
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Ответ:
a) E = 1.69 10⁶6 N / C, b) F = 3.38 10⁶ N
Explanation:
a) In this exercise using Gauss's law we can consider the charge of the generator sphere as if it were at its center, therefore the electric field is
E = k![\frac{q}{r^2}](/tpl/images/1115/1551/d3884.png)
let's calculate
E = 9 10⁹ 3.00 10⁻³ / 4²2
E = 1.6875 10⁶ N / C
E = 1.69 10⁶6 N / C
b) let's calculate the electric force
F = q E
F = 2.00 1.69 10⁶
F = 3.38 10⁶ N