Answer: The diameter of Mars is 6794 km, and its minimum
Chapter 34, Problem 34.7(choose chapter or problem)
The diameter of Mars is 6794 km, and its minimum distance from the earth is \(5.58 \times 10^7 \ \mathrm {km}\). When Mars is at this distance, find the diameter of the image of Mars formed by a spherical, concave telescope mirror with a focal length of 1.75 m.
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