Two identical conducting spheres, A and B, sit atop insulating stands. When they are touched, 1.51 × 1013 electrons flow from sphere B to sphere A. If the total net charge on the spheres is +3.68 μC, what was the initial charge on sphere B?

A = -0.576 μC

B = 4.256 μC

Explanation:

Suppose a single electron charge is . Then the total charge that is flowing from B to A is:

Let A and B be the initial charge of spheres A and B, respectively. Since the net charge is 3.68μC we have the following equation

(1)

When they touch 2.416μC flows from B to A, then they are equal, so we have the following equation

(2)

Add equation (1) to equation (2) we have

answer: the exterior temperature of commercial jet planes as they leave the stratosphere and return to the ground increases steadily.

explanation:

the lower most layer of atmosphere is troposphere which extends from 0 to 12 km above the surface of the earth. the temperature initially decreases as distance is increased from the earth's surface. commercial jets fly in lower part of the stratosphere. the stratosphere extends upto 50 km. the temperature in stratosphere starts rising again due to presence of ozone which traps the uv rays.

thus, when the planes leave the stratosphere and return to the ground, the exterior temperature increases steadily.

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr