Recent content by jofree87

Homework Statement Consider a flat plate subject to parrallel flow (top and bottom) characterized by u∞ = 5 m/s and T∞ = 20°C. Determine the average convection heat transfer coefficient and convective heat transfer rate with an L = 2m long and w = 2m wide flat plate for airflow and...

Air at 1175 K, 8 bar enters a turbine operating at steady state and expands adiabatically to 1 bar. The isentropic turbine efficiency is 92%. Employing the ideal gas model with k=1.4 for the air, determine (a) the work developed by the turbine, in kJ per kg of air flowing, and (b) the...

ya, I think I might be interpreting the problem incorrectly. I think there is only one block of mass hanging and the other "block mass" is actually a fixed support? Here is the actual picture of the problem

"Consider the massless pulley connected by a spring at the pivot. What is the displacement x at equilibrium after the mass m has been added? Determine x in terms of m, g, and k."

only one mass is given. If it reaches equilibrium, wouldn't that mean both masses are the same though?

Consider the massless pulley connected by a spring at the pivot. What is the displacement x at equilibrium after the mass m has been added? Determine x in terms of m, g, and k. I drew picture of the problem and tried to work it out in the pic below. The answer should be x = 4mg/k, but I don't...

ok, I see now. Thanks for the help!

Ive attached the problem and my work in the pic. Questions: Am I even applying the taylor polynomial the correct way? (I never learned taylor series, but I was supposed to be taught in the pre-requisite class) Am I suppose to plug in c=4? I am not so sure about how the U4(t) works...

I am having a trouble understanding why the solutions manual is using u-substitution here. Am I forgetting a rule or something? I don't know how to post in the correct notation so I'll post pictures instead. I am suppose to integrate equation (4) in the picture. The solutions manual shows...

I have the solution's manual for this particular problem, but I'm having hard time understanding the steps they've taken. I've attached pictures of the problem below. For the shear, are they using 1/2*x*(wx/L) because it is equal to the area of the force? And for the bending moment, where are...

What is the voltage across vc(0) in the diagram below? The solution says its 10V but I don't know how they got that. Through KVL, I got 0V. Since all the current flows through the left most circuit, iA = 10/1000 = .01A 3k and 1k(right) resistors have no current. -10 + 1000iA + vc = 0 vc =...

I think I am starting to get it now, but where did you get V = I in the first integral? Thanks for helping me out btw

Here is my attempt at nodal voltage analysis attached below. Can somebody look it over? My answer doesn't seem right.

By v(t), I meant the voltage cross the capacitor, I'll just call it vc(t). And I need to find ic(t) which is the current through the capacitor. I don't think the dependent source and vc(t) are the same since they're not parallel, right? So I need to find vc(t) to get ic(t). How do I find...

Diagram of problem attached below. I don't know where to begin with this problem. How can I find i(t) if I am not given v(t)? Since i = C dv/dt , don't I need the function v(t) to solve this problem? Is it possible to use the function v(t) = v(0) e-t/(RC) , if so, then what would the...