The nucleus of a 125xe atom (an isotope of the element xenon with mass 125 u) is 6.0 fm in diameter. it has 54 protons and charge q=+54e (1 fm = 1 femtometer = 1×10−15m.) hint: treat the spherical nucleus as a point charge. part a part complete what is the electric force on a proton 1.0 fm from the surface of the nucleus? express your answer in newtons. fnucleusonproton f n u c l e u s o n p r o t o n = 780 n submitprevious answers answer requested part b what is the proton's acceleration? express your answer in meters per second squared.

A:

B:

Explanation:

Given:

Part A:

Coulomb's law states that the electric field due to a charged sphere of charge Q at a point r distance away from its center is given by

where, k = Coulomb's constant whose value =

Therefore, the electric field due to the nucleus at the proton is given by

Therefore,

The electric force on a charge q due to an electric field is given as  

For the proton,

Thus, the electric force on the proton is given by

Part B:

According to Newton's second law,

where, a is the acceleration.

The mass of the proton is

Therefore, the proton's acceleration is given by

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.