Two carts of mass M1 and M2 are being pulled up a hill with an angle relative to the horizontal. The carts are connected by an ideal (massless) string with tension F and the front cart, M, is being pulled up the slope with an external force FE. The wheels on the carts are good enough that friction can be neglected in this problem. Let: M = 1.34 kg, M2 = 1.97 kg, and 0 = 18 degrees. If FE = 18.88 N, what is the tension in the string? Give your answer in Newtons to at least three significant figures to avoid being counted off due to rounding. Do not include the units with your answer. M2 String M FE