16.docx - 16 Un farol debe ser colgado exactamente encima del centro de una plazuela circular de radio R La iluminaci\u00f3n de la plazuela es directamente

16.docx - 16 Un farol debe ser colgado exactamente encima...

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16.- Un farol debe ser colgado exactamente encima del centro de una plazuela circular de radio R. La iluminación de la plazuela es directamente proporcional al coseno del ángulo de incidencia de los rayos luminosos e IP a la distancia entre el foco luminoso y donde se quiere iluminar. ¿A qué altura deberá estar el farol para que ilumine, lo mejor posible, una senda que rodea la plazuela? Solución: θ : Ángulo deincidencia x : Alturaquedebe ser ubicadoel farol AB : Distanciaentre el farol y donde se quiereiluminar I : Iluminacióndela plazuela Recuerda: dos magnitudes A y B son directamente proporcionales si A B = k , además A y B son inversamente proporcionales sí

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• Spring '17
• Jhonny
• 1', Foco, rayos luminosos

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