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It’s 186,000 miles per second right but how did they find that out?
I guess no one here knows
Thanks guyz

How do we know its exactly 186,282 m/s? I mean it is not like we can measure that type of speed. In less than a second light would have circled around the world 7 times.
Then I guess my question should be “how is the speed of light defined?”

one more thing if we travel with the speed of light we will se light travelling as usual,and our time will change,what about the distance liggt traveks frm my frame of reference.

If I understand light correctly, it’s matter. It’s a bunch of photons. These move at the speed of, well, itself – light, which is very fast. But there must be an energy source to propel that matter to that speed. What is it?

In an amusement park rocket ride, cars are suspended from L = 4.14-m cables attached to rotating arms at a distance of d = 6.05 m from the axis of rotation. The cables swing out at an angle of θ = 54.6° when the ride is operating. What is the angular speed of rotation?

Please help. I’m stuck.

A boat can cruise at 25 mph in still water.
(a) What is its cruising speed upstream against a current of 3 mph?
(b) What is its cruising speed downstream with a current of 3 mph?

At the end of an amusement park ride, a boat lands in a pool, splashing out a lot of water. Three inlet pipes, each working alone, can fill the pool in 5 seconds, 15 seconds, and 20 seconds, respectively. How long would it take to fill the pool if all three inlet pipes are used

An amusement park ride consists of a rotating
circular platform 11.4 m in diameter from
which 10 kg seats are suspended at the end
of 1.54 m mass-less chains. When the system
rotates, the chains make an angle of 32.3 with
the vertical.
The acceleration of gravity is 9.8 m/s2 .

What is the speed of each seat?
Answer in m/s.

We see images when the light bounce of the surface of other objects and into our eyes. Assume that we could travel at the speed of light or faster than the speed of light, would we be thus looking into the past as we catch up and see the light particles that were reflected from earlier events?
If we look backwards, would we be seeing a “Black” as no other light particles could reach our eyes? (other than those bounce of from ourselves since they travel at the same speed as us)..

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