Q. A shopper walks from the door of the mall to her car 250m down the line of cars, and then turns 90 degrees to the right and walks an additional 60 meters. What is the magnitude of the displacement of her car from mall door?
Q. A charge of -325 e is uniformly distributed along a circular arc of radius 4.10cm that subtends an angle of 39°. What is the linear charge density along the arc?