A very long line of charge with charge per unit length +8.00 μC/m is on the x-axis and its midpoint is at x = 0. A second very long line of charge with charge per unit length -6.00 μC/m is parallel to the x-axis at y = 10.

(a) What is the magnitude of the net electric field at point y2 = 0.200 m on the y-axis?

(b) What is the magnitude of the net electric field at point y3 = 0.616 m on the y-axis?

a. E=6.5*10^{5}N/C

b. E=-4.7*10^{4}N/C

Explanation:

We can use the result of applying the Gauss theorem to a infinite line of charge

with r the perpendicular distance to the line of charge. The total field will be the sum of the contribution to the field by each line of charge.

E=E1+E2

we have

+8.00 μC/m

-6.00 μC/m

y=1m

(a) y2=0.2m

(b) y3=0.616m

In this case the field is directed toward the line of charge placed in y=1m

get the total number of pieces of fruit and divide it by 4 to get the average. the result is the answer to the problem. 14 total number of fruits and there are 4 members. 14 divided by 4 is equals to 3.5.