For a star that has the same apparent brightness as Alpha Centauri A ( 2.7×10−8watt/m2 is mathematically given as
L=2.7*10^30w
<h3> What is its luminosity?</h3>
Generally, the equation for the luminosity is mathematically given as
L=4*\pi^2*b
Therefore
L=4*\pi^2*b
L=4* \pi *(2.83*10^{18})*2.7*10^{-8}
L=2.7*10^30
In conclusion, the luminosity
L=2.7*10^30w
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The y-component of the acceleration is 
Explanation:
The y-component of the ice skater acceleration can be calculated with the equation

where
is the y-component of the final velocity
is the y-component of the initial velocity
t is the time elapsed
Here we have:
- Initial velocity is
at
, so its y-component is 
- Final velocity is
at
, so its y-component is 
The time elapsed is
t = 8.33 s
Therefore, the y-component of the acceleration is

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One small reason would be renewable resources can be used more and never lose supply on the other hand non-renewable resources will one day run out
Answer:
The islamic believers travel to mecca once during their lives because they perform Hajj ( Pilgrimage) which is one of the pilar of the islam.
Explanation:
First of all it is very important to know what is the Islam.
The Islam is an Abrahamic monotheistic religion teaching that there is only one god ( Allah) .
It is the world's second-largest religion with over 1.8 billion followers or 24 % of the world's population. By the other hand the mecca is the holiest of muslim city.
The forces in some car crashes are greater than others; therefore, the body can be more severely injured by greater and more powerful forces. I hope this helped! :^)