An electron and a proton have charges of an equal magnitude but opposite sign of 1.6 x 10-19 c. if an electron and proton in a hydrogen atom are separated by a distance of 5 x 10-11 m, (a) what is the magnitude of the force exerted on the electron by the proton?

9.216 x 10^-8 N

Explanation:

q1 = 1.6 x 10^-19 C

q2 = - 1.6 x 10^-19 C

r = 5 x 10^-11 m

(a) The electrostatic force is given by

F = k q1 q2 / r^2

F = ( 9 x 10^9 x 1.6 x 10^-19 x 1.6 x 10^-19) / (5 x 10^-11)^2

F = 9.216 x 10^-8 N

This force is attractive in nature, as both the charges are opposite in nature.

c

explanation:

i believe the answer is c and this is only worth 10 points you might wanna change it

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.