Steve4Physics's latest activity
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SSteve4Physics reacted to eneacasucci's post in the thread I Lennard-Jones potential and interatomic distance with
Like.
This explanation is super informative and accurate, I cannot thank you enough for this. My notes were wrong and I was so confused about it. -
SSteve4Physics replied to the thread I Lennard-Jones potential and interatomic distance.@eneacasucci, I'd like to add this to what @Charles Link has said. That's not what the graph shows. The graph shows the potential...
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SSteve4Physics replied to the thread I Is this Lennard Jones potential image wrong on the Wikipedia Italian page?.I agree. It would appear that ##- \frac {\partial F}{\partial r}## should be ##- \frac{dU} {dr} ##, which is the force, ##F(r)##...
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SSteve4Physics replied to the thread Irodov- 1.123- Simple conceptual question with two masses connected by a spring.Yes, but the equilibrium position is not relevant. It’s essential to realise that to find the minimum value of ##F##, we must consider...
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SSteve4Physics replied to the thread Irodov- 1.123- Simple conceptual question with two masses connected by a spring.It explains why your approch in Post #7 is wrong. In Post #7 you wrote : There is no force balance*. Forces aren't balanced because...
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SSteve4Physics replied to the thread Irodov- 1.123- Simple conceptual question with two masses connected by a spring.When ##m_1## first comes to rest, its acceleration will be maximum (not zero). So the net force on it will be maximum. Have you...
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SSteve4Physics replied to the thread A Gas sensing using VASP software (computational physics).Totally unfamiliar territory for me but, out of curiosity (and the desire to delay starting some repair/painting work), I did a bit of a...
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SSteve4Physics replied to the thread Vertical Circular motion- A confusing question.Your correction repeats the mistake! You mean ##\arccos (\frac 23)## to the vertical - as you correctly show in your diagram. A...
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SSteve4Physics replied to the thread Vertical Circular motion- A confusing question.I think you’ve got it but I would have said it slightly differently, such as: "The bob+string can not reach the top of the circle...
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SSteve4Physics reacted to palaphys's post in the thread Vertical Circular motion- A confusing question with Like.
okay, so you are saying that the string can only reach the top slack, with the given speed in the question, that too in a hypothetical...
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SSteve4Physics replied to the thread Vertical Circular motion- A confusing question.Have you not met the term 'compression'? Hold a pencil horizontally – one end in your left hand, the other end in your right hand...
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SSteve4Physics replied to the thread Vertical Circular motion- A confusing question.If the bob were mounted on a (light) rigid rod, the bob would just have enough energy to reach the top position. In this case, at the...
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SSteve4Physics reacted to erobz's post in the thread Problem with pulleys - two fixed and one movable with Like.
I second @Steve4Physics suggestion. Try a simpler scenario like this first: Will blocks ##A,B## experience the same accelerations...
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SSteve4Physics replied to the thread Problem with pulleys - two fixed and one movable.Can I add this. It may be helpful to consider the simple case where ##m_2## is held fixed but ##m_1## and ##M## are still free to move...
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SSteve4Physics replied to the thread Problem with pulleys - two fixed and one movable.@brotherbobby, if you haven’t yet cracked it, here’s a short exercise which might help you see what's going on. Let ##L## be the...
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