Homework Statement
max. Turbine work output rate: 6.0MW
Turbine isentropic efficiency: 90%
Turbine exit state (isentropic): 40KPa, x=92%
Turbine and pump actual process are assumed adiabatic
Find turbine inlet state: Pinlet, Tinlet, Sinlet
Homework Equations
W = ΔH
h = hf + xhfg
The Attempt...
I have 24 more upper division math courses to complete over 3 more semesters. I want to go full time which means I need to at least take 12 units (4 classes) of whatever I want. As someone who doesn't know what they want to do with an applied mathematics degree after I graduate, what sort of...
Here's the solution to the problem.
It looks like the book did source transformation, which I didn't think was fair because this problem is before source transformation.
I know nodal analysis and mesh but I thought it was possible to do without them. I thought you could just find the R-total...
Homework Statement
Find voltage across 10 ohm resistor.
Homework Equations
Ohm's law
The Attempt at a Solution
20 // 30 = 12
30 // 60 = 20
That's as far as I can get. The answer is 14.286.
Homework Statement
Homework Equations
KVL and KCL
The Attempt at a Solution
Let V = V1 and the Voltage across the 2 ohm resistor be V2 just for reference.
Step 1: KCL @ Supernode: V1/3 + V2/2 + 21/4 + V3/6 = 0
I think my problem is here somewhere. Does V3 = V2 because...
I'm trying to study the basics right now lol.
I understand I1 = 6, because the voltage is 24 V and the resistor is 4.
What throws me off is the -8V on the other side. How does it behave in the circuit?
I2 is apparently 16A. Is it because the voltage through the resistor is 32V?
Now what...
Homework Statement
Homework Equations
I just need help redrawing the circuit
The Attempt at a Solution
I don't understand how to draw the power sources in correctly. I'm getting mixed on on whether they're in series or parallel with the resistors and such. Any tips would be appreciated.
Homework Statement
Find a polar equation with the graph as xy=16
Homework Equations
r = ed/(1+- cos\theta)? I'm not really sure at all.
The Attempt at a Solution
I also tried using x = rcos\theta and y = r sin\theta but I can't get anything. I know it's a hyperbola.
When you say differentiate under the sum, do you mean differentiate each term in the sequence or do you mean you can actually take the derivative of the series equation? I tried googling and checking my textbook and I don't know how to take a derivative of a series in equation form, with the n's...