Answer:
See below
Explanation:
vf = vo + at subtract vo from both sides
vf - vo = at now divide both sides by t
(vf-vo) / t = a
The speed of a beam of light will appear the same to all observers.
<h3>Speed of light:</h3>
The exact distance that light travels in a vacuum in a second is 299,792,458 meters (983,571,056 feet). This is roughly 186,282 miles per second, or "c," the symbol for light speed in mathematics.
According to Einstein's theory of special relativity, an object (such as a single photon of light) cannot appear to move faster than the speed of light. This physical rule is not broken by Nemiroff's experiment since the laser pointer emits a stream of photons rather than a single photon.
Nothing can move faster than light in a vacuum, according to one of physics' most revered rules. However, in a recent experiment, this speed restriction was broken when a laser pulse traveled at more than 300 times the speed of light.
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Alpha Centauri A
The two main stars are Alpha Centauri A and Alpha Centauri B, which form a binary pair. They are an average of 4.3 light-years from Earth. The third star is Proxima Centauri. It is about 4.22 light-years from Earth and is the closest star other than the sun
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Answer:
The lever is a movable bar that pivots on a fulcrum attached to a fixed point. The lever operates by applying forces at different distances from the fulcrum, or a pivot. As the lever rotates around the fulcrum, points farther from this pivot move faster than points closer to the pivot.
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The magnetic field B generated by wire 1 at distance r (where wire 2 is located) is
where I1 is the current in wire 1. So, the force exerted on a segment
of wire 2 is
By susbstituting B inside the expression of F, we find the formula for the force per unit of length between the two wires:
where r is the distance between the two wires.
By susbstituting the numbers of the problem, we get