Photons begin their existence travelling at the speed of light, they do not "acquire" this speed.
The particle that is light is called the Photon. The photon is massless and can travel faster than any other particle because it has no mass. Any particle that has mass will require infinite energy to reach the velocity of light, which is impossible because the particle will have infinite mass in the process (Remember E=mc^2).
No. The more energy the accelerator can give the particle, the closer the particle can approach to the speed of light, but it can never reach exactly that speed.
No particle can reach the speed of light. Mass increases with speed, and the particle would become infinitely massive as it came closer to the speed of light.
A non-relativistic particle is any particle not traveling at a speed close to the speed of light. This is not a property of particular type of particle; any particle may in general travel at any speed (below the speed of light). An exception are particles which are massless such as photons and gluons, these MUST travel at the speed of light.
transition thoughts. darkness has matter but uncalculated as of yet matter is being caught in deep caves but cannot calculate speed my estimate is lightspeed squared
No, because the orbital is really just an abraction - the electron isn't racing around the orbital like a racecar, so there isn't a speed. The orbital is a better measure of the electrons potential energy.
Well, if it is a particle of light (a photon) it takes about a second and a half. If it is any other particle, one that does not move at the speed of light, then you have to define a speed for it.
No.
In a vacuum, a photon can ONLY move at the speed of light. A regular particle can ONLY move at speeds less than the speed of light.
Engines cannot travel at light speed. The only thing that can travel at this speed is the Photon, the particle of light.
Light can be considered as a wave, or as a particle. As a particle, the particles are called photons. As a wave, light is an electromagnetic wave. In either case, the speed of light (in a vacuum) is approximately 300,000 km/sec.
no, no material particle can approach the speed of light.