Two tiny, spherical water drops, with identical charges of -4.29 ã 10-16 c, have a center-to-center separation of 0.845 cm. a) what is the magnitude of the electrostatic force acting between them? b) how many excess electrons are on each drop, giving it its charge imbalance?

Electrostatic force,

Number of electrons, n = 2681 electrons

Explanation:

Given that,

Charges,

Separation between charges,

(a) Let F is the magnitude of the electrostatic force acting between them. The electric force between charges is given by :

(b) Let n be the excess electrons on each drop, giving it its charge imbalance. It can be calculated using quantization of electric charge as :

n = 2681.25 electrons

or

n = 2681 electrons

So, the number of excess electrons on each drop is 2681 electrons. Hence, this is the required solution.

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.

trig 15.3 cos