Before attempting this problem, review Examples 7 and 8. Two curves on a highway have the same radii. However, one is unbanked and the other is banked at an angle 8. A car can safely travel along the unbanked curve at a maximum speed v0 under conditions when the coefcient of static friction between the tires and the road is 0.693. The banked curve is frictionless, and the car can negotiate it at the same speed v0. Find the angle 80f the banked curve. Number I Units 4. A satellite circles the earth in an orbit whose radius is 1.98 times the earth's radius. The earth's mass is 5.98 x 1024 kg, and its radius is 6.38 x 10 m. What is the period of the satellite? Number Units