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seen Jul 16 at 10:12

A student and enthusiastic programmer. Love learning Physics! And I make android apps as a hobby.

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Jul
9
comment Sign convention of the lens formula and its application
You could add an example to answer the question better
Jul
9
suggested suggested edit on Is sound relative?
Jul
9
answered Is sound relative?
Jul
9
revised Reconciliation of a particle's rest frame and the uncertainty principle
Formatting
Jul
9
suggested suggested edit on Reconciliation of a particle's rest frame and the uncertainty principle
Jul
9
asked How can we consider charge to be continuous?
Jul
9
comment Extreme heating by Sun on Earth- Can eggs be fried?
So keeping the egg in an evacuated chamber with a thermally insulated base would cook the egg? How much time would it take?
Jul
9
reviewed No Action Needed How early might a moon-sized asteroid be detected?
Jul
9
comment Beads in 'perpetual motion'?
Hey, I added the answer in the edit.
Jul
9
revised Beads in 'perpetual motion'?
Added to answer for question asked by OP in comments
Jul
9
revised Perfect pinhole diffraction pattern with sharp fringes using a 632nm laser
Changed a few words regarding question
Jul
8
comment Center of a mass of a hemisphere
You must have calculated inertia using $\int dm r^2$, where $r$ is the perpendicular dist. from an axis. Well, the position of center of mass is given by $\int dm \vec r$, where $\vec r$ is the position vector of an elementary mass $dm$. Maybe that helps!
Jul
8
answered Beads in 'perpetual motion'?
Jul
8
revised How does sun light after it has passed window's pane still heat me up?
Grammar corrections.
Jul
8
comment Why is the angle of impact complementary to the angle of launch in the simple equations for the range of a projectile?
Is $\theta=\frac \pi 4$ when range is maximum even for uneven ground? This seems a little strange to me.
Jul
8
reviewed Reviewed Perfect pinhole diffraction pattern with sharp fringes using a 632nm laser
Jul
8
suggested suggested edit on Perfect pinhole diffraction pattern with sharp fringes using a 632nm laser
Jul
8
comment Taking length/area element when trying to find E.resistance
In the second case, you cannot say $dA=2\pi(b-a)dz$, because even if the resistivity is constant radially, the resistance changes because the area through which the current is passing increases with every increment of $dr$. The equation @Ali suggests for $dA$ is correct and it will give you a dual integral, first through $r$ fro every $dz$ and then through $z$
Jul
8
answered Costant volume gas thermometer
Jul
8
comment Explaining lightyear to non technical people
Just like @annav describes, we usually approximate walking distances to "5 minutes away" or "10 minutes away". It's extremely similar to using light year as a measure of distance. If they are teenagers, you could joke about describing distances as "2 or 3 songs away" where 1 "song" is approximately 3 minutes!