Find the magnitude of magnetic field at his location

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A kid shuffles across an outdoor nylon carpet, acquiring a positive static charge, and then fires a BB gun in the direction of the setting sun. The BB travels horizontally at a speed of 105 meter per second, carrying away a charge of +3.43 mC. If the Earth's local magnetic field is perpendicular to the velocity of the BB, and it exerts a force of 1.80e-8 Newton on it, find the magnitude of magnetic field at his location?

Reference no: EM13676850

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