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part 1: A RL circuit has a 0.14 H inductor, which is connected to three identical...

part 1: A RL circuit has a 0.14 H inductor, which is connected to three identical resistors in a parallel way . If the circuit has a time of 0.5 s, what is the resistance of the resistors in the circuit?

part 2: A negatively charged particle which has a charge of charge q = 4.50×10−6 C, has a velocity of 432 m/s in the positive x-direction, moves into a region with a magnetic field and an electric field. The magnetic field, has a magnitude of 1.70 T, and is pointing in the positive y-direction. The electric field, has a magnitude of 2.70×103 N/C, and points in the positive z-direction. What is the value of the net force on the charged particle?

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