Acopper pipe with an outer radius of 0.015 m runs from an outdoor wall faucet into the interior of a house. the temperature of the faucet is 4.1°c, and the temperature of the pipe, 3.0 m from the faucet, is 25°c. in fifteen minutes, the pipe conducts a total of 270 j of heat to the outdoor faucet from the house interior. find the inner radius of the pipe. ignore any water inside the pipe.

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j ?

How is acceleration calculated? a. initial velocity - final velocity / timeb. initial velocity + final velocity / timec. final velocity - initial velocity / timed. final velocity / timele select the best answer from the choices provided0oood00save and exitnextmark this and return

Glass is transparent to visibile light under normal conditions; however, at extremely high intensities, glass will absorb most of the light incident upon it. this works through a process known as multiphoton absorption. in this process, several photons are absorbed at the same time. if very intense light whose photons carry 2ev of energy is shined onto a material with a band gap of 4ev, that light can be absorbed through two-photon absorption, because two photons have the right amount of energy to bridge the band gap. what is the minimum number of photons of 800-nm light that are needed to equal or exceed the band gap of fused silica glass