A 3.0 m long straight horizontal wire carrying a current of 4.7 A along the +x-direction is in a region of uniform magnetic field, B. If the mass of this wire is 0.4 kg, find the magnitude and direction of the magnetic field necessary to have this wire "float" in the Earth's gravitational field. (Assume the force due
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Athird point charge q3 is now positioned halfway between q1 and q2. the net force on q2 now has a magnitude of f2,net = 5.861 n and points away from q1 and q3. what is the value (sign and magnitude) of the charge q3?
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A 3.0 m long straight horizontal wire carrying a current of 4.7 A along the +x-direction is in a reg...
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