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###### 7. Planet A and planet B orbit around the same star. Planet A is thre times...

7. Planet A and planet B orbit around the same star. Planet A is thre times as far away from the star as planet B is. We can write the previous statement as a ratio: TA/TB 3, where r stands for the planet's distance to the star. What is the ratio of the period of planet A around the star to the period of planet B? In other words, labeling period as T, what is TA/TB? Give your answer with 2 significant figures. . An 86-gram arrow is fired from a bow. The string of the bow exerts a force of magnitude 110 N

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