Consider a slab of face area a and thickness l. suppose that l = 33 cm, a = 55 cm2, and the material is copper. if the faces of the slab are maintained at temperatures th = 129°c and tc = 21°c, and a steady state is reached, find the conduction rate through the slab. the thermal conductivity of copper is 401 w/m·k.

721.8 Joule per second

Explanation:

L = 33 cm = 0.33 m

A = 55 cm^2 = 0.0055 m^2

Th = 129°C

Tc = 21°C

k = 401 W/mK

The rate of flow of heat is given by the formula

H = 721.8 Joule per second

Thus, the rate of flow of heat is given by 721.8 Joule per second.

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the journeys of marquette, joliet and la salle a) new france expand.

all three of these explorers explored the midwest and the area around the great lakes, which they subsequently claimed for france.

this was a big portion of territory and expanded new france which before then only consisted of quebec province in northeastern canada