A jet travels 5872 miles against a jetstream in 8 hours and 7392 miles with the jetstream in the same amount of time. What is the rate of the jet in still air and what is the rate of the jetstream? Rate of the jet in still air:

Rate of the jetstream:

On traditional maps, earth is represented in a flat plane, or by euclidean geometry. however, a globe is a more accurate model that comes from elliptical geometry. how does a globe represent the fact that there are no parallel lines in elliptical geometry? the equator is not parallel to any other latitudinal lines. the north and south poles are never connected by a geodesic. the geodesics connecting the north and south poles never intersect. the geodesics connecting the north and south poles intersect at both of the poles.