Considera que en tu casa tienes un televisor de 110 W, si pasa encendido 4 horas diarias, Cuál será la energía consumida durante un mes (30 días). ¿Cuál es el costo de funcionamiento si el precio de kWh es de 9 centavos

a) 13.2kWh

b) 118800 cents

Explanation:

(a) To find the energy consumed during one month you use the following formula:

   (1)

E: energy consumed

P: power of the tv (energy consumed per hour) = 110 W

t: time

The tv is on for four hours per day. You first calculate the number of hours, in which the tv is on, for one month:

Then, the tv is on 120 h on a month.

Next, you replace the values of P ant t in the equation (1) for E:

(b) If the price for kWh is 9 cents you have for the tv:

hence, the cost of the energy consumed  by the  tv is 118800 cents in on month

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hope this : )

.) the observation by semmelweis that more mothers died of childbed fever when their doctors also worked in the morgue