4. At a given point of a spacecraft's geocentric trajectory, the radius is 14600 km, the speed is 8.6 km/s, and the flight path angle is 50º. Show that the path is a hyperbola and calculate the following: (a) angular momentum, (b) true anomaly, (c) eccentricity, (d) radius of perigee, (e) turn angle, (f) semimajor axis, and (g) aiming radius.