A magnetic field of \( 8 \hat{k} \mathrm{mT} \) exerts a force of \...

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A magnetic field of \( 8 \hat{k} \mathrm{mT} \) exerts a force of \( (4.0 \hat{\mathrm{i}}+3.0 \hat{\mathrm{j}}) \times 10^{-10} \mathrm{~N} \) on a particle having a charge of \( 5 \times 10^{-10} \mathrm{C} \) and going in the \( X-Y \) plane. Find the velocity of the particle.
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