# Cosmic Ray Proton#

## Question Text#

A cosmic ray proton moving toward Earth at $${{params.v}} \times 10^7 \textrm{ m\s}$$ experiences a magnetic force of $${{params.F}} \times 10^{-16} \textrm{ N}$$. What is the strength of the magnetic field if there is a $${{params.theta}} ^{\circ}$$ angle between it and the velocity of the proton?

$$B=$$ $$\textrm{ T}$$