The total area of the walls, windows, and ceiling of an apartment is 200 m2. The average thermal conductivity of the walls, windows, and ceiling is 0.13W/(m·°C), and their average thickness is 0.10 m. Assuming that all the heat loss is by conduction through the walls, windows, and ceiling. How much energy is necessary to keep the apartment at a steady 20 °C for 24 hours if the outside temperature is 0 degrees celsius?

a. 1.2 x 10^9 J.
b. 2.9 x 10^9 J.
c. 4.5 x 10^8 J.
d. 9.3 x 10^9 J.
e. 7.6 x 10^8 J.

falling water hydro = water .. spectcular places these plants are

the following is queen elizabeth’s purposes:

- to encourage the parliament that the technique of picking successors to the seat based merely on birthright needs to be reviewed.

- (not) to convince the parliament that her kid should not be measured as a likely choice for heir to the english power.

- to persuade the parliament that merely since she has a child does not assure that the kid will be a capable leader.

- to sway the parliament how shattering it could be if they proceeded discourteously concerning her or her child.