The electric field in a certain region of earth's atmosphere is directed vertically down. at an altitude of 247 m the field has magnitude 52.6 n/c; at an altitude of 152 m, the magnitude is 78.3 n/c. find the net amount of charge contained in a cube 95 m on edge, with horizontal faces at altitudes of 152 m and 247 m.

Julia would be observing a. static electricity was caused by her sweater rubbing against her shirt and transferring electrons. she didn't touch anything metal, so that would cancel out b.she most likely didn't rub her sweater against her hair either, so that cancels out c.she also didn't scoot across the carpet while trying to take her sweater off, that cancels out d.so that leaves a.a. is correct.

Sorry i don’t know what to do

When is this