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visits member for 2 years, 6 months
seen May 19 at 9:02
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has Exams :((


Aug
20
comment the electromagnetic field
Trust me! Walter Lewin is one of the best teacher I know.
Aug
6
comment Why do rolling disc (coin) move in circular path?
all right thanks!!
Aug
6
comment Why do rolling disc (coin) move in circular path?
@Ankush The coin is moving in circle means it should be spinning ... with period equal to the period of circular motion.
Aug
6
comment Why do rolling disc (coin) move in circular path?
$J$ is angular momentum.
Aug
6
comment Why do rolling disc (coin) move in circular path?
@Ankush since the coin is moving in circle ... something must continuously change the direction of the coin (so that coin follows circular path).
Aug
6
comment Why do rolling disc (coin) move in circular path?
wouldn't that torque be in out direction? please check update.
Aug
6
comment Why do rolling disc (coin) move in circular path?
and thanks for response!!
Aug
6
comment Why do rolling disc (coin) move in circular path?
shouldn't this kind of torque make the coin fall? ... it comes towards us.
Aug
6
comment Why do rolling disc (coin) move in circular path?
could you elaborate a bit please?
Aug
5
comment Why do rolling disc (coin) move in circular path?
can you elaborate your answer on Torque (for thinner disc)?
Aug
5
comment Is it possible to witness a circular rainbow?
i have seen one around the sun ... sun at the center.
Aug
4
comment Why do rolling disc (coin) move in circular path?
hold on ... i'm uploading another one
Aug
4
comment Why do rolling disc (coin) move in circular path?
sorry ... i couldn't find the tool to rotate the disc earlier
Aug
4
comment Why do rolling disc (coin) move in circular path?
can you tell me if the Torque I showed in the figure is right?
Jul
30
comment Why does a photograph of a face look like it is always watching you?
I note gun in movie poster ... no matter through angle which I look ... it always looks it it's going to shoot me :D
Jul
12
comment Lennard-Jones potential - equilibrium
$ \vec F = -{d U \over dr } = 0$
Jul
1
comment Solution to the Maxwell's equation
yeah that's the only part i know!! ... how to get that $ \vec E$ part
Jun
18
comment waves on water generated by a falling object
I'm planning a simulation project .. I'm not in hurry!! We will discuss this later after my exam.
Jun
18
comment waves on water generated by a falling object
thank you ... :)
May
18
comment Can electrons change the frequency of light as they bounce off/around?
en.wikipedia.org/wiki/Compton_scattering