Two black flies are sitting 7.52 cm apart on a hamburger bun on a picnic table. A spy satellite with a built-in telescope is orbiting overhead at an altitude of 425 km. What diameter telescope mirror would be needed to resolve the two flies from that distance? Assume light of wavelength 715 nm (just because that's the value I picked-it's about at the end of the red end of the visible spectrum).

Two black flies are sitting 7.52 cm apart on a hamburger bun on a picnic table. A spy satellite with a built-in telescope is orbiting overhead at an altitude of 425 km. What diameter telescope mirror would be needed to resolve the two flies from that distance? Assume light of wavelength 715 nm (just because that's the value I picked-it's about at the end of the red end of the visible spectrum).