Steve4Physics's latest activity
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SSteve4Physics reacted to jbriggs444's post in the thread I've come across another fluid pressure problem I don't understand with
Agree.
I do not disagree with this at all. If we are working with absolute pressures and ignoring surface tension then water pressure is always... -
SSteve4Physics replied to the thread I've come across another fluid pressure problem I don't understand.Yes. Post #26 was intended for the OP - in case they didn't understand the underlying physics. My school physics teacher (from many...
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SSteve4Physics replied to the thread I've come across another fluid pressure problem I don't understand.You may have some misundestandings - even about the forces in Fig. 1. Try working through this: Consider the simple Fig. 1 setup...
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SSteve4Physics reacted to jbriggs444's post in the thread I've come across another fluid pressure problem I don't understand with Agree.
For a massless piston assembly subject to no external forces other than water pressure, the calculation for ##F_3## is immediate and...
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SSteve4Physics replied to the thread I've come across another fluid pressure problem I don't understand.Some general comments... Units for ρ and g are essential. If the correct units aren’t clear, sometimes terrible things happen! E.g. see...
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SSteve4Physics replied to the thread Adding and subtracting vectors using vector diagrams.The OP has incorrectly drawn the Post #1 diagram, believing (wrongly) that ##\vec s = \vec a + \vec b##. Then they have ignored their...
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SSteve4Physics replied to the thread Adding and subtracting vectors using vector diagrams.It would be best to sort out part a) first. There are some mistakes. The first two are: 1) The diagram is wrong. When adding vectors...
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SSteve4Physics replied to the thread How can we teach students the difference between sequences and series?.The difference between sequences and series is trivial. Are you sure you’ve asked what you intended? But there could be casual misuse...
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SYes this was the intended question , my instructor wrote it in class on the blackboard and then he just solved it, this was the diagram...
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SIt seems a lot of confusion is created for the OP when the full original problem statement is not provided. The learner may not be able...
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SSteve4Physics replied to the thread Minimum mass of a block.The intended original question is probably something like this: Block B (mass ##M##) is initially at rest, in equilibrium, on the...
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SSteve4Physics replied to the thread Minimum mass of a block.In Posts #5 and #8 I was referring only to the case of a non-oscillating mass(A) in equilibrium. I hope this was clear from what I...
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SSteve4Physics replied to the thread Minimum mass of a block.At the point when slipping starts, the tension (##kx##) must be equal to both ##mg## and ##Mg \sin \theta + \mu Mg \cos \theta##...
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SSteve4Physics replied to the thread Minimum mass of a block.I’m not entirely sure what the difficulty is, but this might help... Imagine gradually adding weights to to A, i.e. gradually...
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SSteve4Physics reacted to nasu's post in the thread Different way to find center of mass of Hollow hemisphere with Agree.
You may get better/more answers if you formulate a more specific question rather than just this "check my work" format with three pages...
