You build yourself a carnot engine in your garage with a thermal efficiency of 38%. the hot reservoir has a temperature of 430 c. by how many degrees should the temperature of the cold reservoir be changed (don't forget to specific increased or decreased! ) to raise the engine's efficiency to 64%?
Answers: 1
Physics, 22.06.2019 05:40, thomasalmo2014
Unpolarized light of intensity i_0=750w/m^2 is incident upon two polarizers. after passing through both polarizers the intensity is i_2=280w/m^2. (a) what is the intensity of the light after it passes through the first polarizer in w/m^2? (b) write an equation for the angle between the polarizers in terms of the initial (i_0) and final (i_2) intensities. (c) find the angle between the polarizers in degrees.
Answers: 3
Physics, 22.06.2019 10:10, sadie960
Aclarinetist, setting out for a performance, grabs his 3.350 kg clarinet case (including the clarinet) from the top of the piano and carries it through the air with an upward force of 24.65 n. find the case's vertical acceleration. indicate an upward acceleration as positive and a downward one as negative.
Answers: 1
Physics, 22.06.2019 10:30, tay8556
The uniform slender bar rests on a smooth horizon- tal surface when a force f is applied normal to the bar at point a. point a is observed to have an initial acceleration aa of 20 m/s2, and the bar has a corre- sponding angular acceleration of 18 rad /s2. deter- mine the distance b.
Answers: 1
You build yourself a carnot engine in your garage with a thermal efficiency of 38%. the hot reservoi...
Mathematics, 27.05.2020 05:01
Mathematics, 27.05.2020 05:01
Mathematics, 27.05.2020 05:01