bouyou235 bouyou235
  • 25-12-2023
  • Physics
contestada

La roue dentée tourne à une vitesse angulaire = degrés par seconde. Exprimer puis
calculer le temps ∆ écoulé entre le passage de la lumière par un trou et son retour sur une dent, en
fonction de l’angle δ et de la vitesse .
l’angle δ = un quart de degrés

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