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.
That is short for "light-year" - the distance light travels in a year. Approximately 9.5 million million kilometers.
A "Light year" is a distance. It's the distance light travels in one year, in vacuum.5,878,450,000,000 miles (rounded)9,460,450,000,000 kilometers (rounded)
281 1/4 km.
Santa travels about 160 million kilometers on Christmas Eve to deliver his presents to all the good boys and girls of the world. That is farther than the distance of the sun.
The circumference of the earth at the equator is 40,075.02 Km. So therefore the distance travels in 1 hour is equal to 40075.02/24 which equals 1669.79 Km each hour that is a rough calculation, where the distinction between solar days and celestial days is not taken into account. in a solar day, the earth actually rotates 360 plus 360/365 degrees. roughly 1.003 revolutions, which is 40,185 km. this divided by 24 equals 1674 km
If a car travels in a straight line with a constant speed, then the car has a constant velocity (determined by direction and speed), and the acceleration is 0.
The acceleration of an object that travels in a constant straight line velocity is zero.
Straight line at a constant speed = no acceleration
Trick question. A "constant speed" automatically means zero acceleration -- there is no change in speed.
The acceleration is zero in this case.
zero
Zero!!
if the velocity is constant, the acceleration is zero. The acceleration is the rate at which the velocity changes, so if it stays the same, the car isn't accelerating.
a = (v2-v1)/t if velocity never changes then acceleration is always zero
What kin of acceleration travels at a consent speed in a circular motion
That's the definition of constant velocity. Also a good description of zero acceleration.
It goes faster