The planets Naru and Nutpen revolve around the star Etznlos in circular orbits. The distance from Etznlos to Naru is 20 astronomical units, from Etznlos to Nutpen – 30 astronomical units. What is the minimum and maximum distance from Naru to Nutpen in astronomical units?
The minimum distance between the planets is equal to the difference between the distances from the planets to the star, i.e. 10 AU, and the maximum is the sum of these distances, i.e. 50 au
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