Identify the true statement about heat conduction in a wall if the air temperatures inside and outside the house remain constant. (Check all that apply.) Multiple select question. Heat transfer through the wall of the house can be modeled as steady and two-dimensional. A small thickness of the wall causes the temperature gradient in that direction to be large. A small thickness of the wall causes the temperature gradient in that direction to be small. Heat transfer through the wall of the house can be modeled as steady and one-dimensional.

Aball is thrown from the top of a building with an initial velocity of 21.9 m/s straight upward, at an initial height of 51.6 m above the ground. the ball just misses the edge of the roof on its way down, as shown in the figure. (a) determine the time needed for the ball to reach its maximum height. (b) determine the maximum height. (c) determine the time needed for the ball to return to the height from which it was thrown, and the velocity of the ball at that instant. (d) determine the time needed for the ball to reach the ground. (e) determine the velocity and position of the ball at t = 5.35 s.