Part A Find the magnitude of the magnetic force on a proton

Part A Find the magnitude of the magnetic force on a proton moving at 2.5×105 m/s perpendicular to a 0.57 T magnetic field. Express your answer using two significant figures. IN Submit My Answers Give Up Incorrect; One attempt remaining: Try Again Part B Find the magnitude of the magnetic force on a proton moving at 2.5x105 m/s at 22 ° to a 0.57 T magnetic field Express your answer using two significant figures. F2= 8.6 fN Submit My Answers Give Up All attempts used; correct answer displayed Part C Find the magnitude of the magnetic force on a proton moving at 2.5x105 m/s parallel to a 0.57 T magnetic field. Express your answer using two significant figures.

Solution

a) F = e v B sin theta

= 1.6 * 10^-19 * 2.5 * 10⁵ * 0.57 * sin 90

= 2.28 * 10^-14 N

b) F = 2.28 * 10^-14 * sin 22

= 8.55 * 10^-15 N

c) F = e v B sin 0 = 0