What is the Force on a Proton in a 0.5 T Magnetic Field?

[bobsmith76]

Homework Statement

A proton is projected into a magnetic field of 0.5 T directed into the page. If the proton is traveling at 3.4 × 10^5 m/s in a direction [up 28 ̊ right], what is the magnitude and direc- tion of the magnetic force on the proton?

Homework Equations

F = vBq(sin θ)

The Attempt at a Solution

(3.4 * 10^5)*(.5)(1.6*10^-19)(sin 28) = 1.27 * 10^-14

The book says the answer is 2.7 * 10^13

Maybe the charge for the proton is wrong.

 

[grzz]

I am assuming that the magnetic field is perpendicular into the page.
The direction of travel of the proton is not so clear.