An -particle has a charge of +2e and a mass of 6.64 10-27 kg. It is accelerated from rest through a potential difference that has a value of 1.36 106 V and then enters a uniform magnetic field whose magnitude is 2.00 T. The -particle moves perpendicular to the magnetic field at all times. Required:
a. What is the speed of the a-particle?
b. What is the magnitude of the force on it?
c. What is the radius of its circular path?

you have to draw the persons position over there

a.   mass number from atomic number

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

i believe the answer is a hope it and is correct