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What is the resolving power of a 38 cm telescope? ________________________seconds of arc What do two...

What is the resolving power of a 38 cm telescope?
________________________seconds of arc

What do two stars 1.5 seconds of arc apart look like through this telescope?

A spy satellite orbiting 340 km above Earth is supposedly capable of counting individual people in a crowd. Roughly what minimum-diameter telescope must the satellite carry? (Hint: Use the small-angle formula. Assume that a human is about 0.5 m from shoulder to shoulder.)
_______________________cm

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