Steve4Physics's latest activity
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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...
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SSteve4Physics reacted to Greg Bernhardt's post in the thread Announcement Easy ways you can support Physics Forums with Like.
We are all members of an amazing community of science and math passionate people from all over the globe. However, "amazing" doesn't...
