It does, but it's in the form of uf and ug. I can work out u1 with the given data, but not u2 since its state is unknown.
This is the only part that I do not understand. Why is the pressure constant here? W=PΔV only applies to isobaric processes. P2 has a magnitude of 1.32 b while P1 has a...
Hey guys, thanks a lot for the replies!
Q-W = DeltaU
Q = 0 since the process is adiabatic
h = u+PV -> u = h-PV
Therefore:
W = -DeltaU = m(u1-u2) = m (h1 - P1V1 - h2 +P2V2) (1)
Is this right? h2 is unknown...
v2 = V2/m
From equation (1):
w = h1 - P1V1 - h2 +P2V2
Sorry I don't really...
Homework Statement
[/B]
An insulated cylinder containing water has a piston held by a pin. The water is initially saturated vapour at 65°C and a volume of 5L. The piston has a total mass of 10kg, its area is 0.003 m^2 and the atmospheric pressure is 100kPa. The pin is then released, allowing...
No problems.
Yes, it makes sense now. However, I still got the wrong answer. This is my working out:
I don't know where I went wrong. All y-reactions are intially assumed upwards and the moment reaction at A is assumed clockwise. The actual answer is 35 kN/m.
Thanks for your help so...
Sorry, I don't understand what you mean by that. Does that mean the moment load M2 cannot affect the bending moments of the cantilever beam, so we can just ignore the second beam entirely when considering bending moments of the cantilever beam? Or does that mean the bending moments around point...
Hey guys, first-year Mechanical Engineering student here and a new forumer of this site too. I got a static question that I need help with.
Question:
Relevant Equations:
Sum of all forces in the y direction = 0
Sum of all moments = 0
Attempted Working:
I just need help finding the...