I THINK IT IS THE RED ONE, GOOD LUCK LET ME KNOW IF I WAS CORRECT
How fine do you want them categorized for the ranking ?
What's the population to be ranked ?
The 4000 naked-eye-visible stars ?
The stars within, say, 50 light years from Earth ?
All 200-400 billion stars in the Milky Way galaxy ?
All the stars in some other galaxy ?
Or did you have a list of items to be ranked that you decided not to share ?
That would be a lot like asking us to seat a class of sixth graders alphabetically,
and then not telling us their names.
And how do we drag one star on top of another ?
And if I do that here, how will you know about it ?
The solar UV reaches the equator, so... 95 of the <span>percent is UVA and 5 percent is UVB. It reaches Earth's surface because the ozone</span> molecular oxygen is in the upper <span>atmosphere it completely asorb the UV waves...
learned this in my class.. Hope it helps. :)</span><span>
</span>
Answer: Electron affinity increases on moving across a period.
Explanation:
When an electron is added to a neutral atom to convert it into a negative ion, the tendency is known as electron affinity.
Smaller is the size of an atom more readily an electron will be gained by it because of strong force of attraction exerted by its nucleus towards the electron.
As moving from left to right in a period, more and more electrons get added up in the same shell and the attraction between the last electron and nucleus increases, which results in the shrinkage of size of an atom.
Also, size of atoms decreases from left to right in a periodic table, thus tendency to gain electrons will also increase on moving from left to right.
So, on moving across a period, there will be an increase in electron affinity.
Answer:
<em>529.2N </em>
Explanation:
Given parameters:
Mass of the object = 54kg
Unknown:
Gravitational force acting on the mass = ?
Solution:
To solve this problem, the gravitational force acting on this body is tantamount to the weight of the object.
So;
Weight = mg
m is the mass
g is the acceleration due to gravity
Now;
Weight = 54 x 9.8 = <em>529.2N </em>
The gravitational force acting on the object is <em>529.2N </em>