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Q.  A car is driven 100 km west and then 90 km southwest. What is the displacement of the car from the origin? Assume the blocks are equal length.

Q. A 5.40 cm diameter wire coil is initially oriented so that its plane is perpendicular to a magnetic field of 0.510 T pointing up. During the course of 0.130 s, the field is changed to one of 0.300 T pointing down. Illustrate what is the average induced emf in the coil?

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