Answer:
147,558,601 sqkm
Explanation:
The earth is spherical in shape;
area of sphere = 4πr²
if 70.8% is covered by water then 100-70.8 will be land,
= 29.2%
area occupied by land = (29.2/100) * 4πr²
= 0.292*4*3.142*(6371)²
=147,558,601 sqkm
Answer:
Because of these two trends, the largest atoms are found in the lower left corner of the periodic table, and the smallest are found in the upper right corner (Figure 2.8.
Explanation:
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<u>Answer:</u> The frequency of the light is
<u>Explanation:</u>
The equation used to calculate the energy for a transition, we use the equation:
where,
n = principal energy level
Calculating the energy difference:
To calculate the energy of the light for a given frequency, we use the equation given by Planck, which is:
where,
E = energy of the light =
h = Planck's constant =
= frequency of the light = ?
Putting values in above equation, we get:
Hence, the frequency of the light is
2 chromosomes.
Each chromosome in the pair are pretty much the same other than the fact they have different alleles because each comes from a different parent
Answer: Molecules of gas are usually far apart and can be compressed unlike molecules of liquids.
Explanation:
The molecules of gases are usually far apart, moving freely and randomly, occupying extra space in the containing vessel. Hence, when compressed to become closely packed, gases have lower volume.
However, unlike gases, the molecules of a liquid are restricted, move less freely and occupy no extra space. Hence, liquids cannot be compressed, and their volume remains the same in their containing vessel.