Recent content by sportsrules

for the pentagon, there is a + charge at 1, - @2, - @3, + @4, - @5, and + @6. In part A, we are asled to find the net electric field at point P, which is half way between 1 and 2. Each side is 2 mm long, and each charge is an elemental charge. So, I did- E1=E2=kq/(r^2)...for r I used...

yes it was...but how about the last part...what else would I need to know? Just the size of the building?

The question reads... A heat pump is a refrigerator that uses the inside of a building as a hot-temp reservoir in the winter and the outside of the building as a hot-temp reservoir in the summer. So... For a carnot refrigerator engine operating between 25C and 40C in the summer, what is the...

For a brayton cycle on a pressure and temperature diagram, using helium gas, is it reasonable to have the net work for the cycle and the change in Q for the cycle to come out to be equal to each other?

The question shows a pic of a brayton cycle on a pressure temperature graph. The gas is helium, and there are two moles. We are given two temperatures and asked to find the other two. I did this just fine. But, then we are asked to find the heat flows per kilogram of helium in each cycle and...

also...in a brayton cycle, will the net work and the total change in heat flow, Q, be equal for one complete cycle?

thermodynamics! Another question regarding this question : The question gives a picture of a brayton cycle with temperature on the x-axis and pressure on the y-axis. It is for the monatomic gas, helium, and we are told that there are two moles of helium. The diagram consists of two adiabatic...

The question reads... A heat pump is essentially a refrigerator engine that uses the inside of a building as a hot reservoir in the winter and the outside of the building as the hot reservoir in the summer. A) For a carnot refrigerator engine operating between 25 C and 40 C in the summer, what...

The question gives a picture of a brayton cycle with temperature on the x-axis and pressure on the y-axis. It is for the monatomic gas, helium, and we are told that there are two moles. The diagram consists of two adiabatic processes and two isobaris processes. You are given two temparatures...