One wall of a house consists of 0.019 m thick plywood backed by 0.076 m thick insulation. The temperature at the inside of the house is 25 degrees celsius, while the temperature on the outside of house is 4 degrees celsius, both being constant. The thermal conductivities of the insulation and plywood are 0.030 and 0.080, respectively and the are of the wall is 35m^2. a) Find the temperature at the plywood/insulation interface, assuming that no heat escapes from the system.
b) Find the quantity of heat conducted through the wall in one hour.

pretty sure it's false

the aurora is formed when charged particles emitted from the sun during a solar flare penetrate the earth's magnetic shield and collide with atoms and molecules in our atmosphere. these collisions result in countless little bursts of light, called photons, which make up the aurora.

auroras are generated by charged solar particles hitting molecules in earth's atmosphere. this usually happens in high latitudes, because our planet’s magnetic field tends to funnel these particles toward the poles. that’s why it can be experienced in northern ohio.

0 = 0.40 / 0 = 0

= 0.20 = 9.80 ⁄2 =?

=0 , = = 0.20 =0.50 0 0.40 ⁄

=0−122 =0−12(9.80 ⁄2)(0.50)2 =1.2

you get 2.3=1.21*\frac{a}2 or 4.6=1.21a or a=3.802 (b)

explanation: