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Q. A mass of 3 kg rests on a smooth surface inclined 28° above the horizontal. It is kept from 8) sliding down the plane by a spring attached to a wall. The spring is aligned with plane and has a spring constant of 120 N/m. How much does the spring stretch?

Q. Two long parallel wires each carry a current of 5. A directed to the east. The two wires are separated by 8 cm. What is the magnitude of the magnetic field at a point that is 5.0 cm from each of the wires?

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