A Comet Is Observed to Pass 1 $\times$ 10⁸ M from the Surface of the Sun

question 15

Multiple Choice

A comet is observed to pass 1.50 $\times$ 10⁸ m from the surface of the sun.The sun's radius is 6.96 $\times$ 10⁸ m.What is the speed of the comet at this point,if its speed when passing the Earth's orbit,1.50 $\times$ 10¹¹ m from the sun's center,is 25km/s?

• A) 561 km/s
• B) 618 km/s
• C) 562 km/s
• D) 585 km/s

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