1)

A vector field F and contour lines of a potential function for F are shown in the figure. 25 19 13 Calculate the common value of Fdr for the curves in the direction from P to Q. (Give your answer as a whole number.)Let F (x, y) = l % ). Calculate the work against F required to move an object from (1, l) to (4, 5) along any path in the rst x1 quadrant. 3) Let F = (3x, 7x2, 2) and G = (2, 7x, 3). (Give your answers using component form or standard basis vectors. Express numbers in exact form. Use symbolic notation and fractions Where needed.) a) Calculate curl (F). b) Calculate cur1(F+G)