half the area of the earth (times...?) the area of the earth minus the area of the sun. 1/2 x 4/3 x pi x radius of earth squared) minus 4/3 x pi x radius of sun squared ---- I figured it a little differently... All the energy radiating from the Sun will pass through a sphere the size of the Earth's orbit, which, as we all learned in grammar school, is roughly 93 million miles. So, the area of that sphere is 4 times pi times 93 million squared, roughly 1017, or one hundred million billion square miles.
You could say the amount hitting the Earth is what hits a disc whose area is that of a circle the radius of the Earth; if the Earth's diameter is about 8000 miles, another factoid from grammar school, that makes the disc area about 50 million square miles.
The ratio of these areas gives the fraction of the Sun's radiation striking the Earth. Do the math, and you get 5x10-10 or about 5 ten-billionths!
On a hot summer's day, you can appreciate that we don't get all the Sun's radiant energy or else we'd need sunblock with SPF 250,000,000,000.
The surface temperature of the sun is approx. 5,500 °C Heating power: The solar constant on earth is 4000/3 watts/m^2. Given the sun is 150Gm away the heat given off at the sun is the solar constant times the area covered, 4pi r-squared, (4e3/3)x4pi (150e9)^2= 377 e24 watts. This is a lot of heating power.
Yes, that's a pretty good approximate number to keep in mind as a comparison between the diameters of earth and sun. I get 108.97. Sun equatorial diameter: 1,390,000 km (863,705 miles) Earth equatorial diameter: 12,756 km (7,926 miles)
As a percentage of the Sun's total output, the fraction that reaches Earth is incredibly small. However, of the energy that reaches Earth's atmosphere, an average of about reaches 18% reaches the surface (250 watts/meter of the 1366 watts/meter in the upper atmosphere, with a maximum of 1000 watts/meter where the sunlight hits perpendicularly).
It doesn't generate heat, it's cooling off.
If you're talking about the greenhouse effect, that heat comes from the sun and it trapped here by certain elements in our atmosphere.
The sun's temperature ranges from about 27 million degrees F near its inner core to about 11,000 degrees F at its surface.
Try this: http://www.sciencenetlinks.com/interactives/messenger/psc/PlanetSize.html
I read on Wikipedia that they can giv off as much as 6 x 1025 joules of energy. I pasted the link below: http://en.wikipedia.org/wiki/Solar_flares
Earth's equatorial diameter = 7,926 miles
Sun's equatorial diameter = 864,000 miles, roughly 109 times earth's diameter.
The sun's radius is about 109 times the earth's radius.
The process that Earth receives heat from the sun is called radiation.
The sun warms the earth. The heat (energy) from the earth then heats the air.
sun
By shining on it. The Earth will absorb the heat and rays from the sun. ANSWER: to be more exact ultraviolet radiation from the sun is absorbed by earth in the form of heat uv rays are deadly to humans and most carbon based lifeforms but our ozone layer filters out most of the harmful radiation leaving us the heat
The sun transfers heat to the Earth through radiation - solar radiation.
The sun gives energy, in the form of heat and light.
yes
the sun is much closer to earth than the other stars.
The energy of the sun is produced by the process of nuclear fusion, and a portion of this energy reaches the Earth in the form of sunlight, which heats the Earth.
The Sun is a huge star that is seen during the day on Earth. It gives the Earth many things, it give energy, vitamins, heat and helps things live.
Heat from the sun transfers to Earth through radiation.
0% because the sun is radiation and radiation can not be burnd
yes
From the sun to the earth it is radiant heat
Radioactive and solar energy (or light and heat).
The distance in between the Earth and the Sun is 93000000 miles. In space the temperature in the sun is 10 times that on Earth. The sun produces such incredible heat energy that it is able to reach Earth. The heat is much less here than it would be if we were closer to the sun. The sun creates its heat by burning the gasses that make it up.
Yes it does but the planets closer to the sun get more heat and the planets that are farther away get less heat. That is why Venus is hotter than our Earth and Mars is colder.