theEric
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Hi! I'm from Pennsylvania in the United States.
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!
I'm in college physics and computer science programs, excelling more at computer science grade-wise because it hasn't gotten tough yet. But I think I have more physics knowledge, since I get more experience with physics.
Both of those require math, so I can also help with some math stuff!
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Questions Asked
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 2 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 3 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 3 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 3 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 3 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 4 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 4 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 5 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 6 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 6 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 8 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 8 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 8 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 9 months 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 10 months 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 10 months 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 10 months 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 10 months 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 10 months 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 10 months 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 10 months 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 11 months ago
9 replies
5 Medals
Mathematics
theEric:
Group Title
How can I go back to the default font after using \sf?
updated 11 months 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
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
45 replies
1 Medal
Mathematics
theEric:
Group Title
In OpenStudy, the \[\LaTeX\] editor produces slanted font by default. Can this be changed to normal font?
updated one year ago
4 replies
3 Medals
Mathematics
theEric:
Group Title
In calculus 3, how can I find \[\Delta z\]in the form \[\Delta z =dz+ \epsilon_1\Delta x+\epsilon_2\Delta y\]? I know dz.... and z.... But I…
updated one year ago
No Medals Yet
Mathematics
theEric:
Group Title
Hi! I'm trying to use the following equation in calculus 3:\[\Delta z = dz + \epsilon _1 \Delta x + \epsilon _2 \Delta y\]
I know the value…
updated one year ago
No Medals Yet
Mathematics
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