An Astronomical Unit (AU)is the Average Distance from the Earth

question 34

Multiple Choice

An astronomical unit (AU) is the average distance from the Earth to the Sun.An comet in orbit around the Sun has a perihelion (near point to the Sun) of 0.50 AU and an aphelion (far point from the Sun) of 5.0 AU.If the comet's orbital speed at aphelion is v,what is its speed at perihelion?

• A) 11v
• B) 10v
• C) 5.5v
• D) 4.5v

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