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A small ball with a charge of −7×10−6 C is traveling at a velocity of ⃗v=3×106...

A small ball with a charge of −7×10−6 C is traveling at a velocity of ⃗v=3×106 m s ̂ i . At a point in space, the ball travels through a magnetic field of ⃗B=4T ̂ i−5T ̂k . What is the magnetic force, F B , acting on the ball?

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