Good day.
We know how simple objects, such as 1D wires behave when a simple harmonic wave travels along a wire, or two wires knotted togethe.We also know what happens if you excite a circular thin disc with a single frequency.
Are there some material I can read on, that considers the effect...
I have been revisiting my notes from my 2nd and 3rd year physics degree - especially the ones covering Fourier Optics, and other classical wave optics - and it is quite rewarding to revisit the historical / exploratory aspect of the series of discoveries, that built the foundations of this...
Homework Statement
Let 0≤p≤1.
Let there be k distinct numbers (they can be natural numbers) a1, a2, ... , ak, each repeating respectively b1, b2, ... , bk times.
Let q < ∑r=1k br
Determine the minimal values of b1 ... bk such that the probability of q numbers chosen out of ∑r=1k br numbers...
@ enthalpy, i am afraid, no. a lquid will take a round drop shape only when
1) either it has a high surface tension, and the medium it is on has a low adhesion (mercury and glass for example) - for lava on rock that is not the case
2) in microgravity, in Mars that is not the case either.
should the caracasses be transported to the burial ground by water, then you might want to guess the flow was torrential enough to carry them. the matrix of a sedimentary rock in torrential water is uneven, and random sizes of granules make such a matrix. if you see such kind of rockbed, you...
there is another factor coming to play, the temperature, and the erosion by lavaflow erosion is rather changing the chemical signature of the contact zone (consider that rocks are poor conductors), and often lava is more viscous than water hence flow is very very slow, hence you will not expect...
my two cents:
Mars _does_ have a water cycle albeit *not* earthlike. What happens is that the polar cap, does not just melt, it vaporizes, releasing carbon dioxide and water vapor in the summer hemisphere, and that results in highspeed winds. this wind drives dust, and ice crystals and water...
Hi community.
Once again, a stupid question:
if radio waves are electromagneetic waves, generating an electric field in the antenna, then why can't one just shine visual light (also electrromagnetic waves) on same antenna and use that for communication?
thanks
s
ok, found it
For those who might want to know the answer, <A>, <B> are scalers, not operators, so they commute with each other, and the operators, A and B