Some stove tops are smooth ceramic for easy cleaning. if the ceramic is 0.590 cm thick and heat conduction occurs through an area of 1.31 ✕ 10−2 m2 at a rate of 2271 j/s, what is the temperature difference across it (in °c)? ceramic has the same thermal conductivity as glass and brick.
°c

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.