Download if a parabolic reflector is 20 cm in diameter and 5 cm deep find the focus.

Duration: (3:31) 2025-01-29T15:23:54+00:00



if a parabolic reflector is 20 cm in diameter and 5 cm deep find the focus. if a parabolic reflector is 20 cm in diameter and 5 cm deep find the focus. if a parabolic reflector is 20 cm in diameter and 5 cm deep find the focus.

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