Homework Statement
So they want me to obtain the general solution for this ODE.
Homework Equations
I have managed to turn it into d^2y/dx^2=(y/x)^2.
The Attempt at a Solution
My question is, can I simply make d^2y/dx^2 into (dy/dx)^2, cancel the power of 2 from both sides of the equation...
I found equations for isobaric and isochoric conditions. Q=nCpΔT and Q=nCvΔT. I still don't know how to solve it as none of the values for Cv and Cp are provided.
Homework Statement
A gas is to be expanded from initial stage i to final stage f along either path 1 or path 2 on a p-V diagram. Path 1 consists of three steps: an isothermal expansion(work is 23J in magnitude), an adiabatic expansion(work is 35J in magnitude), and another isothermal expansion...
Homework Statement
When 0.40 mol of oxygen(O2) gas is heated at constant pressure starting at 0 degrees C, how much energy must be added to the gas as heat to triple its volume? (The molecules rotate but do not oscillate)
Homework Equations
pV=nRT
p1V1/T1=p2V2/T2
Q=mcdT
Value of Cp for Oxygen...
Thanks, I got the answer to that as well.
If you don't mind, I'm curious as to why the geometry doesn't matter though.
Thank you very much for all your help :)
Thanks! I got the answer which was 4.85x10^7m.
As for the second part, I tried drawing a right-angled triangle with the distance being the longer non-hypotenuse. I'm assuming the screen is a square.
The bulb is inside of a hollow sphere I assume? That being said I can't think of any equations that can relate the distance to a circle of 1cm2 in the sphere.
This is as far as I got. I tried drawing pyramids with square bases( the source being the tip of the pyramid and the absorbing surface being the square) as well.
Homework Statement
A 100W sodium lamp(lambda=589nm) radiates energy uniformly in all directions.
(A) At what distance from the lamp will a totally absorbing screen absorb photons at the rate of 1.00 photon/cm2.s?
(B) What is the photon flux on a small screen 2m from the lamp?
Homework...