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Q. A 500 turn solenoid, 25 cm long, has a diameter of 2.5 cm. A 10 turn coil is wound tightly around the center of the solenoid. If the current in the solenoid increases uniformly from 0 to 5.0 A in 0.6 s, what will be the induced emf magnitude in the short coil during this time?

Q. An object has a kinetic energy of 257 J and a momentum of magnitude 21.8 kg·m/s. Find the speed and the mass of the object.

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