Multiple Choice
A planet in another solar system orbits a star with a mass of 4.0 *1030 kg. At one point in its orbit it is 250 * 106 km from the star and is moving at 35 km/s. Take the universal gravitational constant to be 6.67*10-11 m2/s2 . kg and calculate the semimajor axis of the planet's orbit. The result is:
A) 79 * 106 km
B) 160 * 106 km
C) 240 *106 km
D) 320 *106 km
E) 590* 106 km
Correct Answer:

Verified
Correct Answer:
Verified
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