SMagic

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CPhill please help

A radio telescope has a parabolic dish. Radio signals are collected at the focal point (focus) of the parabola. The distance from the vertex of the parabolic dish to the focus is 20 feet. The vertex of the dish is located at a point 30 feet above lee mas ..

SMagic 7 ene 2021

+8

0

Thank you, that's what I got. How do you calculate for depth?

SMagic7 ene 2021