QUESTION 18 5 poi Pluto\'s mass was finally calculated in the 1980\'s when we st

Question

QUESTION 18 5 poi Pluto's mass was finally calculated in the 1980's when we studied what? 0 A. The gravitational effects seen at Neptune B. The orbit that its moon Charon follows ° C. The diameter of Pluto D. The strength of Pluto's magnetism 0 E. The speed that Pluto orbits the Sun QUESTION 19 What is strange about Pluto's orbit around the Sun? OA. It goes backwards around the Sun. OB. Its orbit is more circular than the other planets' orbits 0 C, t is further from the Sun than all the planets all the time. O D.Its orbit is tilted compared to the ecliptic plane where the other planets orbit QUESTION 20 Eris is a dwarf planet. Where does it orbit? A. In the asteroid belt O B. Beyond Pluto C.Between Saturn and Uranus 0 D. Sharing Jupiter's orbit

Explanation / Answer

18) B) The orbit that its moon charon follows , as charon and pluto have considerable same binary system and even the spin axis

19) D) its orbit is tilted compared to the ecliptic plane where the other planet orbit .its orbitl plane is inclined to 17 degree

20) A) in the asteroid belt , but it is beyond orbit of neptune and far away from keplar belt

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