III - La résistance chauffante d'un chauffe-eau électrique fournit 5000 joules par
seconde.
Sachant que 85 % de la chaleur fournie est reçue par l'eau.
a- Calculer le temps au bout duquel un litre d'eau pris à la température de 15
commence à bouillir à pression normale.
b- Calculer le temps nécessaire pour faire passer un litre d'eau de 15 C à 85
c- Calculer le temps nécessaire pour chauffer l'eau du chauffe-eau si sa
capacité est 2001.
d- Calculer alors la puissance de cette résistance​

age range would be the answer

transformative rocks are the stones that emerge from the transformation of existing rock composes in a procedure called changeability, implies changing of structures. transformative rocks are shaped from alternate shakes that are changing a result of warmth or weight connected. one of this model is the earth developments that making rocks profoundly cover or crushed which will make the stones warmed and put under awesome weight. they are not softening but rather the minerals they are containing are changed synthetically that will shape transformative rocks. now and again different rocks are shaped when the others are near some liquid magma and getting warmed.