The positron is a particle with the same mass as an electron but charge +e. A positron in a bubble chamber moves perpendicular to a 4.5Tmagnetic field
If the positron's kinetic energy is 28 eV , what's the radius of its trajectory in the bubble chamber?
R = ?
A proton takes 99.0 usto complete one orbit around a 14.5 m diameter cyclotron.
What's the cyclotron's magnetic field?
B = ?