Lincoln, Nebraska lies directly North of Dallas, Texas. Lincoln is at a latitude of 40.5
degrees N and Dallas is at a latitude of 32.5 degree N. Assuming the radius of the
earth is 3.960 miles, how far apart are these cities in miles to the nearest tenth of a
mile?
radian per hour. The Equator lies on a circle of radius approximately 4000 miles. Find the linear velocity, in miles per hour, of a point on the Equator.
