Karen and Lee each have a superpower: they can walk over the surface of the Earth at a constant speed and latitude, whether they encounter water or land. From their chosen latitude, they each leave the Greenwich meridian at the same time. Karen walks due west at 50 km/h at 60 N. Lee walks due east at 100 km/h at 30 N. Display all values rounded to three decimal places. (a) (b) (c) Determine how long it would take Karen to walk all the way around the parallel at 60N, and how long it would take Lee to walk all the way around the parallel at 30 N. After they leave the Greenwich meridian, determine the first longitude \ that Karen and Lee both reach at the same time. On the graphic highlight the equator in yellow and 180 E as a vertical line in cyan. Highlight the longitude line for your value of A from (b), and illustrate the paths taken by Karen and by Lee.