問題詳情
50. Halley's comet moves about the Sun in an elliptical orbit with its closest approach to the Sunbeing 0.59 A.U. and its farthest distance being 35 A.U. If the comet's speed at closest approach is54 km/s, what is its speed when it is farthest from the Sun? [1 Astronomical Unit (A.U.) is theEarth-Sun distance.]
(A) 3203 m/s
(B) 910 m/s
(C) 15 m/s
(D) 13 m/s
(E) 7011 m/s
參考答案
答案：B
難度：計算中-1
書單：沒有書單，新增
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