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May
25
comment Programming in physics
Interesting question, but I am afraid it will be closed as primarily opinion based. If not, I can write a long story on my opinion on this issue. Basically do as many physicists do: learn as you need. Most physicists are very lousy programmers, so don't worry to much about it.
May
24
comment Can I do something for being heavier to be lifted?
@GlenTheUdderboat And, standing on one side, it would be easier to lift a 2m stick, than a 4m stick of the same mass.
May
24
comment Soliton solution for a diffusive system
Also, this may be more appropriate on the math stackexchange.
May
24
comment Soliton solution for a diffusive system
@sailx Ok, I understand your question better now. You may want to look into the error function, as it might help you. I am however a bit afraid for the quadratic term in the equation.
May
23
comment How can tangential acceleration from a radial force be explained?
You just give an overview of fictitious forces. I don't see how it answer the question in any specifics way. Therefore I downvoted this answer.
May
17
comment Which point in the graph does a parachute open?
1. It does not instantly open, right, it takes time. 3. What do you know about terminal velocity?
May
15
comment Is it possible to build an air compressor with no moving parts?
I'm voting to close this question as off-topic because it has been crossposted on engineering.SE ( engineering.stackexchange.com/questions/2832/… )
Mar
16
comment Production of electric field
@SHYAMANANDANINGOMBAM jabirali asks what you mean with "reason".
Mar
1
comment To what fraction of the speed-of-light has any multi-atom molecule (or polyatomic ion) been accelerated?
Do I understand correctly that you actually have two questions here? On about man-made velocities, and one about observed velocities?
Feb
22
comment Dynamics inside a rotating spaceship
Your question is not clear. First, what is the axis of rotation? You have two options for a cylinder. Second, I do not really get where you are going with linearly increasing anglar velocity.
Feb
7
comment Application of Bernoulli's theorem
@pcforgeek Please, first read the guidelines that John linked. Then improve your question a bit accordingly. Especially, what part of the Bernoulli theorem is causing troubles for you? You can demonstrate that with your examples, but your example should not be leading in your question.
Jan
25
comment Why do soap bubbles rise?
@kristjan Interesting thought. Any quick calculation that compares it to the temperature effect?
Jan
11
comment Accelerometer validation trace
@Hypnosifl Did you consider to add another answer?
Jan
11
comment Accelerometer validation trace
@Hypnosifl Useful references, see also Carls comments below. But it basically comes down to whether you take it the acceleration relative to free fall or a coordinate system. I would naturally choose for the latter one for practical purposes on earth.
Jan
8
comment Ripples of flowing water on a smooth road surface
possible duplicate of Why do rain waves form and what is their connection to the texture of the surface they're on?
Jan
3
comment The amplitude of oscillations in sound waves
I think that there is an interesting question hiding here, but it needs some more improvement...
Dec
14
comment How to calculate the value of gravitational acceleration of my town
You say that the centrifugal contribution is really small, but what about that height variation? From see level to $2km$ height, it gives less than $0.1\%$ deviation. You should give more number to support your statement that the answer by @Paul is not relevant.
Dec
8
comment Heat equation with heat radiation and heat transfer
I don't think the matrix solving part is particularly relevant here (just use a standard library). On the other hand, you completely skip over boundary conditions, which is important from a physical point of view.
Nov
27
comment Maximum velocity in a viscous fluid
@Gummybears I recommend you to consult a textbook on fluid mechanics. Otherwise, start here: en.wikipedia.org/wiki/Reynolds_number (and follow the link to the pages "Laminar flow" and "Turbulence")
Nov
26
comment Maximum velocity in a viscous fluid
For laminar flows, yes: en.wikipedia.org/wiki/… . For turbulent flows the problem is much, much more complex.