Vaughan Haynes
03/10/2023 · Senior High School
19. La cantidad de carga, \( Q \), en coulombs (C) que ha pasado por un punto de un alambre hasta el tiempo \( t \) (medido en segundos) se expresa con \( Q(t)=t^{3}-2 t^{2}+6 t+2 \). Encuentre la corriente cuando (a) \( t=0.5 \mathrm{~s} \mathrm{y} \) (b) \( t=1 \mathrm{~s} \). [Véase el ejemplo 3 . La unidad de la corriente es el ampere ( \( 1 \mathrm{~A}=1 \mathrm{C} / \mathrm{s}) \).] ¿En qué momento la corriente es la más baja?
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\( \sqrt{2} \).
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