theEric
Name:
School:
About:
Hi! I'm from Pennsylvania in the United States.
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I'm not the quickest learner, and I know school can be too fast-paced, so I like to come here to help people get through it, or get ahead, or satisfy curiosity!
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However, I usually aim to put in about as much effort as the person I try to help! And I have only so much time to answer things sometimes...
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I'm in college physics and computer science programs, excelling more at computer science grade-wise. But I think I have a little more physics knowledge.
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Both of those require math, so I can also help with some math stuff!
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This semester is my craziest so far, so I'm sorry I can't be on more! Also, I'm that much more grateful to anyone who helps me! Thanks!
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Questions Asked
theEric:
Group Title
I need help with a macroscopic systems problem, concerning entropy.
This is for a quiz, so I'm hoping for only relevant information, no pro…
updated 13 days ago
17 replies
2 Medals
Mathematics
theEric:
Group Title
What is the significance of spin? How does it affect the wave function? I just need help putting this into place in my brain.
I know that…
updated 25 days ago
6 replies
2 Medals
Mathematics
theEric:
Group Title
I have questions about drawing a circuit diagram.
And so I'll draw the diagrams in a moment and ask them!
updated 29 days ago
9 replies
1 Medal
Mathematics
theEric:
Group Title
Quantum Physics: Spin:
Any help understanding the concept of spin would be helpful, as I'm not sure where to start the problem!
…
updated one month ago
9 replies
1 Medal
Mathematics
theEric:
Group Title
Hi! I'm having trouble with an ODE. I can solve for solutions in the form
\(x^2y''+\alpha y' +\beta y=0\)
…
updated 6 months ago
25 replies
3 Medals
Mathematics
theEric:
Group Title
Would anybody be able to help me learn oscillatory motion for multiple objects using matrices? In class we've been using the Lagrangian, but…
updated 6 months ago
1 reply
No Medals Yet
Mathematics
theEric:
Group Title
I'm studying harmonic motion by understanding it through potential energy. But there seems to be so many things going on, and I was hoping s…
updated 6 months ago
9 replies
1 Medal
Mathematics
theEric:
Group Title
In thermodynamics, I have to use the partition function to find \(\bar\varepsilon\). I'm not comfortable with this material though, so any h…
updated 6 months ago
61 replies
3 Medals
Mathematics
theEric:
Group Title
This is for mechanics II.
We're working with a particle of mass \(m\) in one-dimensional motion.
The potential energy is given by…
updated 6 months ago
29 replies
2 Medals
Mathematics
theEric:
Group Title
As I go into Lagrangian Mechanics, what should I expect to see?
Just trying to get a feel for it before I have to learn it.
Thanks! :)
updated 7 months ago
1 reply
1 Medal
Mathematics
theEric:
Group Title
Hi! I'm wondering what mathematical principle let's me go from
\(dE=TdS-PdV+\mu dN\)
to…
updated 7 months ago
5 replies
No Medals Yet
Mathematics
theEric:
Group Title
Entropy Question: How can water be heated from 273K to 363K while having entropy change of the entire system be zero?
updated 8 months ago
25 replies
No Medals Yet
Mathematics
theEric:
Group Title
ODE: Finding \(Q(t)\) in \(R\dfrac{\mathrm dQ}{\mathrm dt}+\dfrac{Q}{C}=V\)
Would anyone walk me through an ODE problem? Chapter 1 in a boo…
updated 9 months ago
19 replies
1 Medal
Mathematics
theEric:
Group Title
Hi! I'm looking at an example from my book and I'm hoping somebody can explain this. It's in the first chapter, but I don't want to skip out…
updated 9 months ago
7 replies
No Medals Yet
Mathematics
theEric:
Group Title
(Classical Mechanics) Would somebody be able to help, maybe with hints, on this projectile motion problem? Thanks! It involves cannons! Scen…
updated 11 months ago
37 replies
2 Medals
Mathematics
theEric:
Group Title
(Classical Mechanics (with calc, but algebra could help)) Hi! I am stumped, but I feel like I should be able to get to the answer... A pitch…
updated 11 months ago
31 replies
1 Medal
Mathematics
theEric:
Group Title
(Classical Mechanics (with calc, but algebra could help)) Hi! I am stumped, but I feel like I should be able to get to the answer... A pitch…
updated 11 months ago
9 replies
1 Medal
Mathematics
theEric:
Group Title
I have a circuit that is pretty much a power supply, ammeter, and wires. I want to draw a circuit diagram. For the two important sections of…
updated one year ago
No Medals Yet
Mathematics
theEric:
Group Title
Hi! I have to find the velocity as a function of displacement for some given force functions.
Here is the question:
…
updated one year ago
19 replies
1 Medal
Mathematics
theEric:
Group Title
Hi! Any help with this ODE word problem will be appreciated!
I'll simplify it to the important data:
…
updated one year ago
20 replies
5 Medals
Mathematics
theEric:
Group Title
Hello! I'm working on a finance-related problem, and I'm not sure that I'm solving the ODE well!
Here's the prompt:…
updated one year ago
6 replies
1 Medal
Mathematics
theEric:
Group Title
Hi! This is a finance-based problem, which might be my difficulty. I have the answers from the book. Here is the prompt:
"Suppose that a sum…
updated one year ago
26 replies
2 Medals
Mathematics
theEric:
Group Title
Hi! I am solving a problem, and I think I correctly arrived at \(\ln\left|e^y-2x\ y\right|=C\). At any rate, I think I'll be left with \(\ln…
updated one year ago
8 replies
1 Medal
Mathematics
theEric:
Group Title
I used Wolfram Alpha to see that \(\int x^{-1} dx=\ln\left|x\right|+C\), even though I don't understand why. But what about \(\int f(x)^{-1}…
updated one year ago
7 replies
3 Medals
Mathematics
theEric:
Group Title
Hi! How do I solve \(x^3-x^2-1=0\) for \(x\). Is this simple, despite Wolfram Alpha's solution, or might it have been written incorrectly? T…
updated one year ago
14 replies
1 Medal
Mathematics
theEric:
Group Title
Are the changing ads interfering with anyone else?
On Internet Explorer, it moves the posts up and down. It stops my text from being edit…
updated one year ago
9 replies
5 Medals
Mathematics
theEric:
Group Title
How can I go back to the default font after using \sf?
updated one year ago
30 replies
1 Medal
Mathematics
theEric:
Group Title
How do some people have code in a box? I feel like I knew and used this at one time, but I now forget. The box is shaded dark gray and text …
updated one year ago
10 replies
1 Medal
Mathematics
theEric:
Group Title
Calculus 3 - Find work done along curve in force field. How do I set up the integral? The curve is the upper half of a circle with radius 3,…
updated one year ago
23 replies
1 Medal
Mathematics
theEric:
Group Title
Separation of variables, Schrodinger's Equation.
For the first part of a physics homework question, I am given an equation and am told to se…
updated one year ago
No Medals Yet
Mathematics
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