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bremenfallturm's latest activity
bremenfallturm
replied to the thread
Test question: What is true for a mechanical impact?
.
Thank you everybody for your input! I also re-read the section on impact in one of my mechanics books that stated that kinetic energy is...
May 10, 2024
bremenfallturm
reacted to
kuruman's post
in the thread
Find work given two conservative forces and a nonconservative force
with
Like
.
We are not formal in that regard. Once the OP (original poster) provides a solution as you have in post #6, that’s it. Thank you for...
May 10, 2024
bremenfallturm
replied to the thread
Find work given two conservative forces and a nonconservative force
.
(Is there any way I can mark a thread as solved? Still new to this forum :smile:)
May 10, 2024
bremenfallturm
replied to the thread
Find work given two conservative forces and a nonconservative force
.
Hm, okay. You're right, I re-read the statement. It says that the particle "stops" at B in situation 4 and "moves" to B in the other...
May 10, 2024
bremenfallturm
replied to the thread
Find work given two conservative forces and a nonconservative force
.
Alright! So for path (4), we simply know that $$U_{1-2}=\underbrace{\frac{1}{2}mv_b^2}_{=0}-\underbrace{\frac{1}{2}mv_a^2}_{=0}$$...
May 10, 2024
bremenfallturm
replied to the thread
Find work given two conservative forces and a nonconservative force
.
Megasuperdupersorry, copy paste let me down. I've clarified, see #1.
May 9, 2024
bremenfallturm
posted the thread
Find work given two conservative forces and a nonconservative force
in
Introductory Physics Homework Help
.
The figure provided with the question is: I set up the following equation for path 4 ##U_{path 4}=U_{Fk1, path 4}+U_{Fk2, path...
May 9, 2024
bremenfallturm
replied to the thread
Test question: What is true for a mechanical impact?
.
Ah, why doesn't it work in the second case? If we apply it to the whole system, can't we still use those relations even with an...
May 9, 2024
bremenfallturm
posted the thread
Test question: What is true for a mechanical impact?
in
Introductory Physics Homework Help
.
TL;DR Summary: I'm trying to figure out why this answer is not correct for a mechanical impact: "Conservation of energy and...
May 9, 2024
bremenfallturm
replied to the thread
I
Runge-Kutta 4 w/ some sugar on the top: How to do error approximation?
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Aha, thank you! So a relative error of ##0.5\cdot 10^{-n}## implies ##n+1## safe digits? According to...
Apr 29, 2024
bremenfallturm
replied to the thread
I
Runge-Kutta 4 w/ some sugar on the top: How to do error approximation?
.
Aha, I see you. Embarrasing, sorry! I've always thought that a relative error of ##0.5\cdot10^{-n}## where ##n## is the number implies...
Apr 29, 2024
bremenfallturm
replied to the thread
I
Runge-Kutta 4 w/ some sugar on the top: How to do error approximation?
.
I double-checked my table, looks like you're right. k_x down gives −0,352986712689222. I have another question. I have from above an...
Apr 27, 2024
bremenfallturm
replied to the thread
I
Runge-Kutta 4 w/ some sugar on the top: How to do error approximation?
.
Thank you guys! So now I'm actually finalizing the thing that the topic title asks about: I'm putting together an answer! Once again...
Apr 27, 2024
bremenfallturm
replied to the thread
I
Runge-Kutta 4 w/ some sugar on the top: How to do error approximation?
.
I see what you mean, it has of course frustrated me a bit too. We're supposed to consider two scenarios: the first one assuming that the...
Apr 27, 2024
bremenfallturm
replied to the thread
I
Runge-Kutta 4 w/ some sugar on the top: How to do error approximation?
.
Aha, I see what you mean. I copied it from where I have noted the data and it ended up like that. Thanks for pointing it out!
Apr 27, 2024
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