An alpha particle (m=6.6 x 10-27) is accelerated by a potential difference of 5000 Volt and then enters a region with a vertical (out of the page) 0.75 T magnetic field.
a) Calculate the speed of the alpha particle?
b) At a certain instance, the alpha particle is moving east. Obtain the magnitude and direction of the magnetic force of it?
c) Calculate the radius of its circular motion?