Two light waves meeting one another meet at the speed of light, due to relativistic effects.
The relative speed, V, of two objects travelling at relative velocities, Va and Vb, is given by
V= (Va+Vb)/ (1-(VaVb/c2)) where c is the speed of light.
if Va = Vb =c, which is the case that you are asking about;
V = (c+c)/(1-c2/c2)
= 2c/2
=c
i.e. the two waves travelling at the speed of light meet at a combined relative speed of the speed of light. It is a counterintuitive result, but a direct result of relativity and the distortion of space-time.
It would be if it wasn't for the fact that time relative the object moving at high speed slows down as you approached the speed of light, and completely stops when you reach it. This is what prevents things from going faster than the speed of light.
The relative refractive index describes the change in speed of light as it moves from one medium to another, indicating how much the light bends or refracts at the interface of the two media. It is calculated as the ratio of the speed of light in a vacuum to the speed of light in the medium in question. The larger the relative refractive index, the more the light is bent or refracted as it enters the medium.
The significance of the relative speed of light in the theory of special relativity is that it serves as a universal constant, meaning that the speed of light is the same for all observers regardless of their relative motion. This principle leads to the concept of time dilation and length contraction, which are fundamental aspects of special relativity that explain how time and space are perceived differently by observers in motion relative to each other.
due to relativistic effects such as time dilation, an observer in either object (an observer in the same inertial frame of reference) will see the other object moving at the speed of lightsee http://math.ucr.edu/home/baez/physics/Relativity/SR/velocity.html for the mathematics behind it
-- If you are not attached to either of those light waves, then you see each of them moving at the speed of 'c'. -- If you are attached to either one and traveling with it, then you see the other one approaching you at the speed of 'c'.
Speed is relative to the speed of light and gravity. So gravity could effect speed.
The speed of collision refers to the relative velocity of two objects right before they collide. It is the rate at which their positions change with respect to each other as they come into contact. This speed is a crucial factor in determining the impact force and damage caused during a collision.
The time to collision formula is used to calculate the time it will take for two objects to collide. It is calculated by dividing the distance between the two objects by the relative speed at which they are moving towards each other.
Time does not stop at the speed of light; rather, time appears to slow down for an object moving at the speed of light relative to an observer.
The short answer is: they can't. Protons, or any other particle that has mass, can't go at the speed of light because it would take infinite energy to get it going that fast. In particle accelerators, they make protons collide at a speed very slightly less than the speed of light, something like 99.99% of the speed of light. It takes a lot of energy to get the protons going that fast, and all of that energy is released in the collision, hopefully making some interesting results.
NO! Nothing (according to Einsteinian physics moves faster than light. A vehicle cannot be accelerated to the speed of light nor very close to it but in thought experiments (Einsteins favorites) you can imagine it.Even if you were to have two vehicles moving towards each other (one from the "east" and the other from the "west" in some frame of reference both moving at close to the speed of light relative a "stationary" observer, The relative speeds between the vehicles would not exceed the speed of light.
Hypothetically, yes. The speed of light is relative to the observer, so no matter how fast one is traveling, light always appears to travel at the same speed.