Here is the problem which I am struggling on, please help me!
Problem: How fast must an alpha particle (m = 6.68×1027 kg, q = 3.20×1019 C) travel perpendicularly to the Earth's magnetic field in a laboratory (B = 5.02×105 T) for it to describe a circular path of radius 2.34 cm?
Show all work, use additional paper if necessary.