Cosmic Rays in general are believed to be created from supernova explosions in our galaxy and possibly from other galaxies. Protons are ejected from the explosion at extremely high velocities, although this doesnt completely explain where the extremely high energy comsmic rays (10^20 eV) come...
for particles with a non-zero rest mass...
m = \frac{m_0}{\sqrt{1 - \frac{v^2/c^2}}}
This equation gives you the mass of a particle relative to you, going at velocity v.
particles with a zero rest mass, for example, photons, naturaly travel at the speed of light, they cannot travel slower...
start off with the definition of acceleration...
a = \frac{v_f-v_0}{t}
v_f = v_0 + at
Definition of average velocity...
v_{ave} = d/t
d = \frac{v_f + v_0}{2}t
substitute...
d = \frac{(v_0+at) + v_0}{2}t
d = \frac{2v_0 + at}{2}t
d = v_0t + \frac{1}{2}at^2
For the second...
By saying "fast enough" im guessing you mean faster than the speed of light, which we all know is impossible. So from your example it would be impossible to time travel into the past, but it would be possible to time travel into the future because of time dilation.
As for time travel to the...
This is impossible, the mass of the proton is 1.67262158 × 10-27 kilograms, while the mass of the electron is 9.10938188 × 10-31 kilograms. This means that the proton has a mass more than 10^4 times that of the electron.
1) The direction of the atoms are completely random according to the Kinetic Molecular Theory.
2) Only the atoms move, the protons and neutrons are fixed in the atom as being the nucleus with electrons "rotating" around the nucleus. If the atoms move fast enough, some atoms will get ionized...
Neutrinos are definitly not massless, they have a rest mass. Particles with no rest mass, for example photons, DO have energy, which can be calculated by using the equation...
E = h \nu Where E is the energy, h is plank's canstant and \nu is frequency of the light.
I dont know much about black holes, but that equation you gave can be determined by knowing the mass of the black hole, since G and c are both constants. That bothers me a little, that you can calculate length from mass.
Cadendish used a laser to bounce off a mirror on the balls and see the angle that the light beam creates after the balls attract each other. I dont know how he exactly used this to calculate it, I've heard that Cavendish calculated G by accident, that he was origionally trying to calculate the...
This is a well known and often used equation, if u want to see derivations just google it.
I found some by googling "derivation root mean square velocity".
http://itl.chem.ufl.edu/2041_f97/kin_thr/kin_thr.html [Broken]
http://pitons.uwaterloo.ca/chem350/Resources/pressurederiv.pdf [Broken]
I dont think we will ever know why the constants of our universe are what they are, not only the speed of light, but also, planks constant, the gravitational constant, ect.
Its actually a manipulation of the ideal gas law combined with the equation for the rms of a molecule.
PV = nRT
PV = \frac{mRT}{M} where m = mass of molecule and M = moler mass.
P = \frac{(m/V)RT}{M} = \frac{\rho RT}{M}
c_r_m_s = \sqrt{\frac{3RT}{M}}
c_r_m_s^2 =...
Electric field, E = \frac{kq}{r^2}
Since you have two particles with charges, lets call the unknown charge q1, and the known charge q2, where
Since E = 0, \frac{kq_1}{r^2} + \frac{kq_2}{r^2} = 0, where r is the distance from the charge to the point of zero electric field. Therefore...
For...
Since everyday speeds are nothing compared to the speed of light, the length contraction/time dilation/mass increase are neglected. When moving at relativistic speeds (close to the speed of light) these effects are very noticable. For example, mass is a little more than 2 times greater at .9c...
Temperature is the measure of the kinetic energy of the particles, and relativistic KE is...
KE = m_0c^2(\frac{1}{\sqrt{1-\frac{v^2}{c^2}}}-1)
as v -> c, KE -> infinity
Actually, the exact opposite is true about what you said. First of all, pressure increases with temperature, and increasing pressure or temperature causes density to go down. Hence why hotter air rises and cooler air sinks. In fact a "high pressure system" that they refer to in forcasts always...
Interesting, I think i'll measure the weight of a lightbulb and then measure it again a few years later. That should be enough time for a significant change.
So then what mass-energy conversion is going on when an electron and positron annihilate to create two gamma rays, if both the pair...
But water vapor in the atmosphere isnt "impure" like liquid water is from the ions disolved in it. The water vapor is pure water since you cant evaporate ions that were once in the liquid water. So, if what I say is true, then the reason why static charge builds up better in dry air is because...
You did, the speed of light will never be reached or surpassed, even relative to another velovity. But people will eventually be able to have "warp drive". It sounds like something from Star Trek, lol and it is, but science fiction always has a potential of becoming science fact. Although it...
Yes, that is exactly how I define as relativistic mass. The relationship come from Lorentz transformation. I dont know how that equation is derived, but do know how a similar one is, the equation for relativistic time. I love derivations so i'll make sure to find one online and take a look...
I think you can derive it by simply using newtonian physics, but im not sure...
F = \frac{p}{t}
E = Fd = \frac{pd}{t} = \frac{mvd}{t}
m = \frac{Et}{vd}
p = mv
p = (\frac{Et}{vd})v
p = \frac{Et}{d} = \frac{E}{d/t}
p = \frac{E}{v}
Since light travels at c...
p =...