The strength of magnetic force varies iIITt-'BISEIF Twith the square of the distance between the magnets. In other words: 1: Force = 2 distance Suppose that Twhen two magnets are 6 cm apart, there is a force of 4 newtons. Find the work required to move the magnets om a distance of 2 cm apart to a distance of 9' cm apart. Work = Joules A circular swimming peel has a diameter of 18 m, the sides are 3 m high, and the depth of the water is 3 111. How much work (in Joules} is required to pump all {If the water over the side? {The acceleration due to k gravity is 9.3 E: and the density Ofwater is 10:30 is.) 5 [I]