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Use the diagram and the fact that Planet A has a nearly circular orbit while Planet B has a highly elliptical orbit to answer the following questions. Use examples of Newton’s and Kepler’s laws in your answers.
a. Does Planet B travel faster or slower when it is closest to the Sun than at other times? Explain your answer.
b. Which planet takes longer to orbit the Sun? Explain your answer.
c. Does the gravitational attraction between these planets increase or decrease as their orbits move them closer together? Explain your answer.
d. Which planet has the highest average orbital speed? Explain your answer.
e. Which planet travels at about the same speed throughout its orbit? Explain your answer.
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