Physics

Problem

A solar wind proton of charge

1.6 \times 10^{-19}

C moving at

3.0 \times 10^{6}

ms^-1 enters perpendicularly into a region of Earth's magnetic field where the value of the magnetic flux density is

4.0 \times 10^{-6}

T. a. Calculate the magnetic force exerted on the proton by the Earth's magnetic field. b. Calculate the acceleration of the proton. (

m_{\text{proton}} = 1.67 \times 10^{-27}

kg) c. Calculate the radius of the proton's circular motion.