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The speed of light is constant in a vacuum and is approximately 299,792 kilometers per second. Light from a star travels at this speed from the star to Earth without acceleration.

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1y ago

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Light from a star travels to earth in a straight line at a constant speed of almost 300000 km s what is the acceleration of light?

The speed of light is constant at about 300,000 km/s in a vacuum, so light does not experience acceleration.


Light from a star travels from earth in a straight line at a constant speed of 300000 kilometers per second What is the acceleration of the light?

The speed of light is a constant, so the acceleration is zero. However, light IS affected by gravity, and gravity causes an acceleration. How does this balance? The light moves at the same speed - the speed of light, abbreviated "c" - but loses or gains energy as the light moves toward or away from the gravity source. In gaining energy (without speeding up!) the frequency of the light is increased and the wavelength of the light (or any electromagnetic energy) is decreased, In losing energy, the wavelength is increased and the wavelength decreased. This could be a trick question, of course. Light from a star wouldn't be travelling from earth, unless we are talking about reflected light, which would not be particularly intense, but it is not out of the question.


What are exmaples of acceleration?

When you are stopped at a light, and it turns green, you start to drive forward. That is acceleration.


What information does the light of a star or other heavenly bodies give us?

Spectral analysis of that light can identify the object's elemental composition, measure its velocity towards or away from us, measure its acceleration towards or away from us, etc.


When was Star Light created?

Star Light was created in 1971.


What does these words have in common house star street?

The answer is light Light house Star light Street light


The amount of light a star gives of is called its?

The sun give light to the star because the sun reflects on the star to give them light.


How many pages does Star Light have?

Star Light has 279 pages.


When a car slows at a traffic light it is?

acceleration, I think


What are the following terms-angular acceleration-centripetal acceleration-instantaneous acceleration-ballistic pendulum-angle of deviation-therionic emission of light-first law of thermodynamic?

instantaneous acceleration is the acceleration at one point. yeah, it's true


A car approaching a red light is an example of?

Negative acceleration


The star have light?

because the star is luminous.