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A charge q = 6.4 x10-19 C moves through a uniform magnetic field ?⃗⃗= 3.0 ?̂...

A charge q = 6.4 x10-19 C moves through a uniform magnetic field ?⃗⃗= 3.0 ?̂ + 4.0 ?̂ -2 ?̂ .What is the magnetic force on the charge when is moving with a speed of ?⃗⃗⃗⃗ = 3.0 ?̂ ?

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