To solve this problem it is necessary to apply the concepts related to the Power defined from the Stefan-Boltzmann equations.
The power can be determined as:

Making the relationship for two states we have to

Since the final power is 8 times the initial power then

Substituting,



The temperature increase would then be subject to



The correct option is D, about 68%
Explanation:
Se supone que si es 5.31 x 7.6 los límites son 38.98 ahora si fuera en suma mueves los puntos dos veces a la izquierda la sumatoria seria la siguiente .00531 + .0076 la respuesta seria
.00607
<span>The correct answer is D): resistors B and C. In fact, the energy per unit charge is equal to the voltage across the resistors. The electrical potential energy is in fact: </span>

<span>, where q is the charge and V is the voltage; by rearranging the equation, we have </span>

<span>, therefore the voltage is the energy per unit charge. In the circuit in the figure, the resistors B and C are connected to the same points of the circuit (they are connected in parallel), therefore they have the same voltage, so they have the same energy per unit charge.</span>
<span>Weather occurs primarily due to air pressure, temperature and moisture differences between one place to another. Therefore, the correct answer that would best complete the given statement above would be second option. </span>Weather changes occur primarily because of <span>heat exchange between the sun and atmosphere. Hope this helps.</span>