Question: Consider an alien spacecraft from another star entering our solar system and heading toward Earth with a hyperbolic excess velocity of VHE = 17

Consider an alien spacecraft from another star entering our solar system and

Consider an alien spacecraft from another star entering our solar system and heading toward Earth with a hyperbolic excess velocity of VHE = 17 km/s. (a) What is the semi-major axis a (km) of this hyperbolic trajectory with respect to Earth? (b) What is its velocity (km/s) at perigee if its distance at closest approach is 8,000 km? [distance = from the center of the Earth/gravitational object]

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