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Why does only a tiny fraction fraction of the total energy released by the sun reaches earth?
The sun radiates in all directions, towards the earth, away from the earth, at right angles to the earth and so on. It radiates roughly equally in all these directions.
Suppose you could draw a sphere with the sun as its centre and radius = average distance between the earth and the sun (1 astronomical unit). Then the amount of incident energy is proportional to the area of cross section of the earth relative to the surface area of the sphere.
Now, mean earth-sun distance = 1 AU = 149,597,871 km
So surface area of sphere = 4*pi*r2 = 2.813*1017 km2
Radius of earth = 6371 km
Cross-sectional area of earth = 1.275*108 km2
So the earth occupies 1.275*108 /2.813*1017 of the surface area of the sphere and therefore receives 1.275*108 /2.813*1017 of the sun's energy output.
= 4.5*10-10 or approximately one half of one billionths.
What else can I help you with?
How much of earth is covered in water in a fraction?
It is approx 7/10.
What is the fraction of kids on earth?
Since there are no kids in space, I suggest 100%.
What if your weight on the moon would be what fraction of your weight on the earth?
one forth by jaden
What is a fraction in the Earth's crust called?
A fraction in the Earth's crust is commonly referred to as a "fault." Faults are fractures or zones of weakness in the Earth's crust where there has been displacement of rock on either side. They play a significant role in geological processes and can lead to earthquakes when stress builds up along these fractures.
What fraction of earth's history have human-like animals existed show work?
59%
What small fraction of energy reaches Earth?
Roughly one billionth of the Sun's total energy output reaches Earth. This energy is essential for supporting life on our planet, driving weather systems, and powering various natural processes.
What percentage of the energy radiated by the sun reaches earthes surface?
Of the Sun's energy reaching Earth's atmosphere, just under 60% reaches the Earth's surface. Only a small fraction of the Sun's energy reaches Earth, of course. In fact it's only about 0.000000045 percent. So, the answer to the question is: about 0.000000025 percent.
How radiant energy reaches the earth?
It reaches earth as an electromagnetic wave.
What is one energy the reaches earth from the sun?
The energy that reaches the Earth from the sun is known as sunlight.
What fraction of the sun's upcoming energy is absorbed by the earth?
Approximately 30% of the Sun's energy that reaches Earth is reflected back into space, while the remaining 70% is absorbed by the planet. This absorbed energy is utilized in various processes, including heating the atmosphere, oceans, and land, and driving the Earth's weather systems. Therefore, the fraction of the Sun's energy absorbed by Earth is about 0.7 or 70%.
When energy from the sun reaches earth it is not?
absorbed by earth's core
What happens to the majority of the sun's energy before it ever reaches Earth?
The majority of the sun's energy is absorbed by the Earth's atmosphere before it reaches the surface.
Why do tornadoes comes in the Earth?
Tornadoes come from the energy released in a thunderstorm. As powerful as they are, tornadoes account for only a tiny fraction of the energy in a thunderstorm.
What form does suns energy have when it reaches earth?
The Sun's energy is given out mainly as "electromagnetic radiation". Light is a form of electromagnetic radiation. Heat is the main form the Sun's energy has when it reaches Earth, particularly the Earth's surface.
How much energy from the son actually reaches the corn?
Approximately 1-2% of the solar energy that reaches the Earth's surface is absorbed by plants, including corn. This energy is used in the process of photosynthesis, where plants convert sunlight into chemical energy. Factors such as the angle of sunlight, leaf orientation, and environmental conditions can influence the efficiency of this energy capture. Overall, while a small fraction of solar energy reaches the corn, it is sufficient for growth and development.
The suns energy reaches the earth as what type of energy?
The sun's energy reaches the Earth as solar radiation in the form of electromagnetic waves, primarily in the form of visible light and infrared radiation.
What is the main source of energy that reaches earth?
The Sun
