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It is not possible for any object with any mass to travel at the speed of light. It is possible to travel at 99.9999999999999999999999999999999999999% the speed of light, you could even travel at "99.9 followed by a trillion trillion 9s"% of the speed of light but never quite 100%.

According to our current mathematical theories, for an object with any mass to travel at the speed of light it would take infinite energy to attain that speed.

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15y ago

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To travel at the speed of light, an infinite amount of energy would be needed according to Einstein's theory of relativity. This is because as an object with mass accelerates, its energy requirement increases exponentially, approaching infinity as it nears the speed of light.

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AnswerBot

10mo ago
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The basic formula for speed still applies: distance = speed x time. Solving for time: time = distance / speed.

If the distance is expressed in light-years, it is especially easy: it takes light one year to travel one light-year.

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14y ago
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According to our current theories of physics, the speed of light is 299,792.458 km/second and does not vary by local conditions.

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15y ago
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Q: How much energy is needed to travel at the speed of light?
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What do you need to travel at the speed of light?

To travel at the speed of light, you would need to have an infinite amount of energy, which is currently not possible with our current technology and understanding of physics. Additionally, as per the theory of relativity, an object with mass cannot reach the speed of light.


How much energy does it take a spaceship to travel at constant speed 90 percent of light speed?

The energy required for a spaceship to travel at 90 percent of the speed of light would be substantial due to the relativistic increase in kinetic energy as speed approaches the speed of light. The energy required can be calculated using Einstein's mass-energy equivalence formula, E=mc^2. The exact amount of energy would depend on the mass of the spaceship and would be calculated as the difference in energy between its rest mass and its kinetic energy at that speed.


If energy has mass and anything that has mass cannot travel at the speed of light then how is light energy?

Light is composed of massless particles called photons, which allows it to travel at the speed of light in a vacuum. While light carries energy, it does not have mass in the traditional sense, which is why it can achieve this incredible speed.


Is the speed of light the highest speed possible?

Yes, according to our current understanding of physics, the speed of light in a vacuum is the fastest speed at which energy, matter, and information can travel. Any object with mass that approaches the speed of light would require an infinite amount of energy to accelerate further.


Which waves travel the fastest?

Electromagnetic waves travel the fastest, including visible light, radio waves, and X-rays. In a vacuum, all electromagnetic waves travel at the speed of light, which is approximately 299,792 kilometers per second.