You can't travel at the speed of light. Accelerating a finite mass to lightspeed requires an infinite amount of energy.
If you were traveling at nearly the speed of light, relativity says the beam of light from the torch would appear to you to be traveling just as fast as it would if you were standing still.
Uh, it's a bit academic, but in reality there's nothing that says a mass can't travel faster than light. While it's true that a mass can't be accelerated to the speed of light from any lesser velocity, it doesn't rule out masses that might always have had a velocity greater than the speed of light.
The theory of relativity explains that as a spaceship moves closer to the speed of light, time for the people on the spaceship appears to slow down compared to those on Earth. This is known as time dilation, where time passes differently for objects in motion at high speeds.
The initial speed of spaceship 1 can be calculated using the formula: initial momentum = mass * velocity. Therefore, the initial speed of spaceship 1 would be 6 m/s.
The speed of light from the flashlight would still be the speed of light, which is a constant value in a vacuum regardless of the observer's motion. This is one of the fundamental principles of Einstein's theory of relativity.
To find the initial speed of spaceship one, we need to apply the principle of conservation of momentum. Since the two spaceships have equal masses, their momenta will be equal and opposite. The momentum of spaceship two is given by 150 kg * V2, where V2 is the initial speed of spaceship two. The momentum of spaceship one is given by 150 kg * V1, where V1 is the initial speed of spaceship one. Since they have equal magnitudes, we have 150 kg * V1 = 900 kg * (-V2). Solving for V1 gives V1 = - 6 V2. Since we want the initial speed in magnitude, the initial speed of spaceship one is 6 times the initial speed of spaceship two in magnitude.
The initial speed of spaceship 1 can be calculated using the formula: momentum = mass x velocity. Thus, velocity = momentum / mass. Plugging in the values, the initial speed of spaceship 1 is 3 m/s.
Travelling faster than the speed of light is not possible, therefore no galaxies have travelled or are travelling faster than the speed of light.
Photons begin their existence travelling at the speed of light, they do not "acquire" this speed.
We don't know where the farthest planet is. But if we assume it's at the edge of the observable universe, then it depends on how fast we go:A spaceship travelling as fast as we can go in 2017 would take 838 trillion years.A spaceship travelling at the speed of light (which is virtually impossible) would take 45 billion years.A star trek Starship travelling at variable warp speeds would take about 45 million years
it is impossible to fire a bullet a the speed of light
The part about the spaceship going with the speed of light is not real. I don't understand the earlier part of the question.
radiation
I'd imagine it would go the speed of light because time would slow down to make sure the light wouldn't go faster than the speed of light.
About 4.2 years.
None or Infinity. What speed are you travelling? Are we walking or travelling the speed of light? Temporal distance is entirely dependant on velocities.
Not in the near future. Other galaxies are hundreds of thousands, or millions, of light-years away; travelling at the speed of light, it would thus take millions of years to travel to most galaxies; travelling at a lower speed would, of course, take longer.Not in the near future. Other galaxies are hundreds of thousands, or millions, of light-years away; travelling at the speed of light, it would thus take millions of years to travel to most galaxies; travelling at a lower speed would, of course, take longer.Not in the near future. Other galaxies are hundreds of thousands, or millions, of light-years away; travelling at the speed of light, it would thus take millions of years to travel to most galaxies; travelling at a lower speed would, of course, take longer.Not in the near future. Other galaxies are hundreds of thousands, or millions, of light-years away; travelling at the speed of light, it would thus take millions of years to travel to most galaxies; travelling at a lower speed would, of course, take longer.
Unless I am travelling in the speed of light, yes.
1.27 seconds