Complete the sentence- Friction always acts
1  along the direction of the motion.
2  opposite to the motion.
3  both of these.
4  none of these.​

The least penetrating form of radiation is

An electron is traveling with initial kinetic energy k in a uniform electric field. the electron comes to rest momentarily after traveling a distance d. (a) what is the magnitude of the electric field

Write a full page that sumerizes thermodynamics it’s from the website visionlearnig