Steve4Physics's latest activity
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SSteve4Physics replied to the thread Finding the acceleration of a block on an inclined plane with friction.Welcome to PF! I agree with your results but have some comments. Yes, you have accounted for friction correctly. It is good practice...
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SSteve4Physics replied to the thread Questions about a parallel plate capacitor apparatus for lab experiments.If you are using a medium quality general purpose multimeter it will typically measure resistances up to 20M##\Omega##. I would expect...
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SSteve4Physics replied to the thread Doppler effect: why do I find this exercise so difficult?.That’s a nice approach. A copy of the article can be found here: https://arxiv.org/pdf/2504.18159 Also, the equation...
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SSteve4Physics reacted to physicsstudent21's post in the thread Doppler effect: why do I find this exercise so difficult? with
Like.
After reading the following article, your understanding to the Doppler effect will be much more clear. You may find this article by... -
SSteve4Physics replied to the thread Questions about a parallel plate capacitor apparatus for lab experiments.@DDesulgon, you might find the following link useful - it describes an experiment with the sort of capacitor similar to the one you...
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SI asked my mom's sister to rename herself 'derivative'. Then she'll become my auntie derivative.
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SSteve4Physics replied to the thread How is x-vt a rightward moving wave?.This somewhat repeats what has already been said, but there is an important underlying point that's maybe worth making explicitly...
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SI ended up here looking for an answer to a question and am extremely grateful for the prompt and informative answer. I'm neither...
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SSteve4Physics replied to the thread Find the acceleration of a block (some sort of double Atwood machine?).I get the same equation as you - but don’t forget that you haven’t completely answered the question. You are given values for the...
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SSteve4Physics replied to the thread Find the acceleration of a block (some sort of double Atwood machine?).Yes. Agree 100%. In case there's any confusion, I certainly wasn't (in Post #10) promoting the OP's (Post #1) approach. But in Post...
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SSteve4Physics reacted to jbriggs444's post in the thread Find the acceleration of a block (some sort of double Atwood machine?) with
Agree.
This is fine in isolation. One often picks a sign convention to try to keep all quantities positive. If one guesses wrong, the worst... -
SSteve4Physics replied to the thread Find the acceleration of a block (some sort of double Atwood machine?).@michelp, this is a bit late in the day, but it might explain the misunderstanding... In the case of a simple Atwood machine (with...
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SSteve4Physics replied to the thread Undergrad 20 Megapascals of negative pressure... What? Please explain.A few thoughts... 20MPa is not exceptional. E.g. 20MPa is the tension in a 1mm diameter vertical string with 1.6kg hanging from it...
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SSteve4Physics replied to the thread Vector calculus: line element dr in cylindrical coordinates.I would like to add something as I too remember being confused by this many decades ago. ##\hat {\rho}## is not a unique unit vector...
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SSteve4Physics reacted to kuruman's post in the thread Vector calculus: line element dr in cylindrical coordinates with Like.
##\rho## is the distance (a scalar) and does not depend on. Imagine a circle of radius ##\rho##. It is the same regardless of the...
