Hello people.
I want to start of with my first question.
What got me thinking about this is actually stock price movements. If a stock rises from 10$ to 15$ on a day, it will have increased by 50% obviously. But what wonders me is what if we break the small movements down. Say that first it...
Actually you're right haha, when i first heard it, it just seemed like too much and i didnt think about it any further but obviously it is. and converting to joules was a task included in the assignment.
Thanks
Hello guys, I am having a bit of trouble with some homework
So I am told that a photon in a light beam has an energy og 2,12 eV. First i have to calculate the energy of it in joules, and since 1 eV is 1,60*10^-19 Joules 2,12 eV in joules is just 2,12*1,60*10^-19 = 3.392*10−19 J i got that.
Then...
Hello guys!
I know what redshift is and all concerning it, so i have a good understanding of it. Though there is something that my 15 year old little head can't really seem to understand... When a star emits its photon, it travels to us and due to the accelerating distance between it and us...
Exacly that's the though part, because normally i would just divide out the t^2 but that won't help in this example as it would leave me with a 1 on the LHS.. and that wouldn't help much,, is there some mechanism or method that i am missing that could solve this? i feel like there's something i...
ok ill try:
c^2t^2 = c^2x^2 + v^2t^2
t^2 = \frac{c^2x^2 + v^2t^2}{c^2}
Dividing both sides by t^2
1 = \frac{c^2x^2 + v^2t^2}{c^2t^2}
im stuck... lol
normally i don't really have trouble when solving for variables but this one irritates me.. can i have another hint ? :)
Hey guys, this is a little silly question but it bothers me. I am not a math genius (yet i hope) and I am still in elementary school so there's a lot to learn. But i just read about the lorenz factor in this example he basically used pythagoras of this light clock in a train, so it started of as...
Woow quite an explanation you made there ! Its really difficult to wrap my head around but i think its starting to settle and I am only in high school so my education level doesn't help me heh.
Now the thing that has been confusing me for a while (which i felt that you clarified here) is the...
Hmm okay. Its just that to me it sounds like when people mention it, that its a well known idea that the universe was a little "ball" to begin with. But guess i just misunderstood it
As far as i understand the current big bang theory, it started as a extremely dense object, finite in size. But we still think (or well it is very accepted to belive) that the universe is infinite. I know inflation should be though as an expansion everywhere at the same time rather than the ball...
Well the magnetic flux describes the TOTAL flux through the surface. There is still magnetic fields flowing out of the surface, but because no monopoles exist, the flux has to equal 0 because the same amount that exist also enters. Referring to amperes law ∇ x B = \frac{∂D}{∂t} + J That saying...