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**1. Homework Statement**

A proton moves through a region of space where there is a magnetic field [tex]\vec{B}[/tex]= (0.61[tex]\hat{i}[/tex] + 0.36[tex]\hat{j}[/tex]) T and an electric field

[tex]\vec{E}[/tex]= (2.8[tex]\hat{i}[/tex] - 4.3[tex]\hat{j}[/tex]) *10[tex]^{3}[/tex] V/m. At a given instant, the proton's velocity is [tex]\vec{v}[/tex]= (6.3[tex]\hat{i}[/tex] + 2.9[tex]\hat{j}[/tex] - 4.8[tex]\hat{k}[/tex]) *10[tex]^{3}[/tex] m/s.

Determine the components of the total force on the proton.

F[tex]_{x}[/tex]= ?, F[tex]_{y}[/tex]= ?, F[tex]_{z}[/tex]=?

**2. Homework Equations**

I assume what needs to be used is the "Lorentz Equation" which is:

[tex]\vec{F}[/tex]= q([tex]\vec{E}[/tex] + [tex]\vec{V}[/tex] * [tex]\vec{B}[/tex])

and use the q of a proton which is 1.6*10[tex]^{-19}[/tex].

**3. The Attempt at a Solution**

I attempted to use a cross product of [tex]\vec{V}[/tex] and [tex]\vec{B}[/tex] and it seemed to be on the right track but I ended up getting stuck on what to do with [tex]\vec{E}[/tex] and honestly I ended up getting stuck on the whole problem and not sure at this point where to start and end.