1. an electron (q=16x10^-20 c, m=1x10^-30 kg) moving at half a megameter per second up the page enters a region with a uniform magnetic field of 1 t directed out of the page. find the initial magnetic force magnitude and direction (in page coordinates) on the particle and find the radius of the curve it will follow.

Explanation:

It is given that,

Charge on electron,

Mass of the electron,  

Speed of the electron,            

Magnetic field, B = 1 T (directed out of the page)

Let F is the magnetic force acting on the electron. It is given by :

Here,

Using the right hand rule, the direction of magnetic force is upward to the plane of the paper. Also, the electron will follow the circular path.  It is given by :

Hence, this is the required solution.                                    

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.