Answer:
Speed of the cosmic rays, [tex]v=4.64\times 10^8\ km/hr[/tex]
Explanation:
It is given that, Cosmic rays are highly energetic particles which can travel at great speeds through outer space.
The speed of the cosmic rays, [tex]v=1.29\times 10^8\ m/s[/tex]
We need to convert the speed of cosmic rays to kilometers per hour. We know that :
1 kilometers = 1000 meters
1 hour = 3600 seconds
[tex]v=1.29\times 10^8\ m/s=\dfrac{1.29\times 10^8\times (1/1000\ km)}{(1/3600\ h)}[/tex]
On solving the above expression,
[tex]v=464400000\ km/h[/tex]
or
[tex]v=4.64\times 10^8\ km/hr[/tex]
So, the speed of the cosmic rays is [tex]4.64\times 10^8\ km/hr[/tex]. Hence, this is the required solution.
