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2d
comment What's the difference between $10\%$ of $10\text{ cm}$ and $1\text{ cm}$?
One is relative, the other absolute.
Apr
8
comment Could water physically makeup the core of a planet or otherwise large celestial mass?
@irth Read carefully, there is not litterally an ocean under water.
Apr
8
comment Could water physically makeup the core of a planet or otherwise large celestial mass?
nature.com/nature/journal/v507/n7491/full/507174a.html
Apr
4
comment Does car have more kinetic energy when turning?
Basically: "You are counting double"
Apr
4
comment The scissor paradox: can we pass the information faster than light?
Your assumption that the scissors are not bending can not be right. If the width is smaller, it is even easier to bend, as far as my understanding goes.
Apr
4
comment Can a submerged capsized vessel be turned into a sort of diving bell and propelled forward like a submarine?
I suppose such a situation might exist, but it seems unlikely to me that such a situation can be obtained by capsizing.
Apr
4
comment Heat transfer and temperature difference of 2 liquids
@John If you are giving equations, it is more intuitive to write it as $exp(-t/\tau)$, with $\tau$ a timescale, which is a kind of thermal relaxation time.
Apr
1
comment Faster than critical damping for harmonic oscillator?
Not me, but I can imagine that it makes a difference.
Apr
1
comment Faster than critical damping for harmonic oscillator?
Nice explanation, but it doesn't completely address the question, i.e., what if the damping is non-linear?
Mar
30
comment How fast would a truck have to go to pull a pedestrian onto the road?
@user6972 And how slippery the sidewalk is.
Feb
28
comment Force applied to two blocks
What did you try?
Feb
22
comment Surface Area: Volume and its relation with heat
You can, by the way, incorporate all effects of conduction and radiation inside the $k$ of equation (1)
Feb
22
comment Surface Area: Volume and its relation with heat
Please take care about formatting. You do use a lot of bold-face, but no capitals, this makes your answer very hard to read.
Feb
22
comment Surface Area: Volume and its relation with heat
Only radiation is important? What do we define windchill temperature you think?
Feb
22
comment Surface Area: Volume and its relation with heat
Sidenote: For animals hopefully $dT/dt=$ because of internal heat production :)
Feb
17
comment The physics of breaking eggs
@jinawee Would all the references you find there be publicly accessible for high school students?
Feb
17
comment Is it fair to judge this speedskating race by only 3 thousands of a second?
Did you take the Coriolis force into account here?
Feb
12
comment Being in a solid state, why is ice slippery?
You might find this interesting: fuckyeahfluiddynamics.tumblr.com/post/76227278265/…
Feb
9
comment The Achilles Paradox
@Dvji The figures in the wiki-link by QMechanic explains more than most extensive explanations would.
Feb
7
comment Regarding the centrifugal force in a 3-body system
@Kvothe Of course you have to add some information, and show that it reduces to $m$.