/sci/ - Science & Math

>>1361376
>You people have one hell of a display of ignorance of science and math here

It would have been funnier if you said you only saw inane comments.

OP: i was shining a laser pointer the other day, and I noticed this weird tiny "fuzz" which surrounds the dot, which look really weird.

I think it is a diffraction pattern. Is this correct?

So, an object is constrained by a cord to move in a circular path of radius .5m on a horizontal frictionless surface. the cord will break if its tension exceeds 16N. What is the maximum kinetic energy the object can have?

The second law of thermodynamics says that the universe could not have become more organized after the Big Bang. Prove me wrong.

What subfield of physics do you specialize in?

A physicist with poor grammar skills; what a surprise.

Why do so many physicists think they are biologist?

>>1361376
TROLL

0/10

Although I have had it explained to me before I still don't understand why water evaporates at less than 100 degrees celsius.

oh look it's this thread.

>>1361437

I feel like that semi-colon was not well done. I don't think that "what a surprise" is a clause; I think it is a phrase. Thoughts?

How many papers OP?

>>1361376

Since youre so good with physics wats my future OP (but i bet youre a liar and a charlatan)

OP IS A FAG.

>>1361464

The molecules that evaporate ARE at 100* C, if I remember correctly. Because temperature of the liquid is just its average, some of the molecules are slower, and some are faster, averaging to whatever < 100*.

Question for OP: what would happen if I was floating on a mile x 10 x 10 meter chunk of water that fell from a height of 5000 feet?

>>1361413
not OP but 4J?

bumping for pascal's knowledge

>>1361536
that's what they figured out in the other thread. someone came with the answer a minute after I asked here.
>>1361569
Thanks, but I wasn't asking for myself. but another poster in a different thread.

>>1361579
oh I just wanted to know if I got it right

megalolz
but good on ya
1/2 decent tripfags here

>>1361587
I told him 4 also, but my answer was a lucky guess.

>>1361609
a = v^2 / r
F=ma
m = F / a = F*r / V^2
E = .5mv^2 = F*r*.5 = 16 (.5) (.5) = 4

>>1361376
Original Poster, if you're sincere then you must be new. Welcome to 4chan, it's mostly children here and they are rather ignorant. But most especially welcome to the /sci/ board, one of the most fun boards on 4chan, still filled with children but hey, it's /sci/ence here and that leads to the fun stuff.

Whats the highest level of Math you know? Needed for astrophysics?

Can you explain Electric Potential in a short, but meaningful way?

>>1361703
stop asking, OP was a troll and hasn't answered anything.

>>1361703
GR = Tensor Cal

what area of physics

>>1361709
It is like the "pressure" in a pipe. (the electrons being the water in the pipe)

NOT OP

>>1361703
Not OP, but I am one year away from a BS in physics.

Astrophysics is a broad field, if you want to study things like black holes in depth you need all the math you can get, I'm talking about everything from basic algebra to linear algebra to vector calculus...

Really the math you need depends on what exactly you want to study

>>1361721
Its not that simple. Electric potential is not limited to wires. It is a field that technically extends to infinity.

>>1361709
In a short but meaningful way, electric potential represents the energy you would need to move, for example, a single electron toward/away from a charged source.

Rough idea there.

>>1361776
yeah, agreed

>>1361770
Exactly how can Math explain cosmic entities? Excuse my unawareness, I just never understood it.

>>1361770
vector cal = shit tier
yeah, I can tell you are still in undergrad

The highest math you need is for astro is Tensor Cal.

>>1361795
Not mathematics alone, mathematics and physics together. The same way math and physics can explain terrestrial and predict terrestrial behavior.

>>1361795
Troll or really dumb little kid?
either way 0/10

Can you explain the Hafele-Keating experiment, more specifically why the eastward plane's clock runs faster, and the westward clock slower?

>>1361454
>>1361477
>saging with image
you really are helping /sci/!

>>1361840
Velocity is measured relative to the earth's surface, which itself is moving. Therefore the absolute velocities of the planes are not identical and because relativistic effects are proportional to the square of velocity, a discrepancy arises.

>>1361413
now if only you could apply that bullshit detection to the other stupid shit you believe.