Recent content by ts547

Apphysicist - Haha good simplification. Not very useful I don't think. :) Never mind ill stick with the numerical approach. HallsofIvy - Ok no its not a polynomial. Didnt know what else to call it at the time. If your so clever help me with this...

Yeh that's it. I haven't learned how to do the fancy writing yet. I didnt think there would be an easy way of doing this.

Homework Statement Solve for x, 225*sin(x)/x^6-225*cos(x)/x^5-90*sin(x)/x^4+15*cos(x)/x^3-5/(2*x^3)=0 Homework Equations Finding this very complicated to solve, are there any useful hints or techniques we should know about? The Attempt at a Solution Have used numerical...

Ok try this, as dv=0, dU=dQ, dU=CdT=dQ, dS=CdT/T for both reservoirs with relavant limits, deltaS=Cln(T/Th)+Cln(T/Tc)=0 => T/Th=Tc/T => T=sqrt(ThTc)=319.26K I presume my max work theory was ok. Also while your here, I am getting confused again. I don't know wots wrong...

Ok so I've got, Change in entropy of hot reservoir: ds_h=dQ/T_h=> deltaS_h = C(T-T_h)/T_h where T is the final equilibrium temperature, Q is for constant volume process Change in entropy of cold reservoir: deltaS_c = C(T-T_c)/T_c and change in entropy of the engine system...

Homework Statement A 200 litre container of boiling water and a 200 litre container of ice cold water are used as heat source and sink for a Carnot engine. Calculate the maximum amount of useful work that can be obtained from the system and the final temperature of the two containers of...

Oh right, mental block over! I think Mr green has the solution! Thanks for the help :)

Homework Statement A string under tension T is stretched between O and L , and a transverse force distribution F(x) = Ax(L-x) is applied (A a constant). Find the transverse displacement pattern. Homework Equations Possibly the wave equation lots of integrals The Attempt...