Physics, 07.12.2020 14:00 jaydaxox15

même eleve fait fonctionner son televiseur 275 jours par an à raison de 3 heures par jour il le laisse en veillè le reste du temps c'est a dire 21 heures par jour pendant 275 jours et 24 heures par jour pendant les 90 jours restant de l'annee. La puissance du televiseur est de 100W quand il fonctionne et de 20W quand il est en veille. Calculer la quantite d'enrgie transforme par le televiseur en fonctionnent pendant une annee. Calculer la quantite d'energie transformee par le televiseur en veille pendant une annèe

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