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This means to the power 15, ie 1 petawatt = 1015 watts
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Express the value of 173 thousand trillion watts in exponential form and include units?
1.73 *1017 watts or 1.73 *102 PetaWatts
How much of the sun's energy does the earth receive?
The Earth receives about .00000005% of the Sun's energy (but only absorbs about 70% of what it receives), which ends up being about 174 petawatts.
What is the energy from the sun is called?
Solar Energy. The total solar energy absorbed by Earth's atmosphere, oceans and land masses is approximately 3,850,000 exajoules (EJ) per year. The Earth receives 174 petawatts of incoming solar radiation at the upper atmosphere.
How much energy could you extract from the sun if it would be harvested?
The amount of solar energy that falls on the Earth is about 174 PW (petawatts), that is, 1.74 x 1017 watts. Its total energy production is roughly 2 billion times greater: about 3.846×1026 W. A watt is a joule per second.
What type of energy enters the Earth's atmosphere from the sun?
The energy Earth receives from the Sun is often called solar energy. The rate at which this energy arrives at Earth is about 174 petawatts ( 1 petawatt = 1,000 trillion watts) at the upper atmosphere. About 30% is reflected back to space. The sun energy at the Earth's surface is mostly in the visible and near-infrared ranges with a small amount in the near-ultraviolet.
Is half of the suns energy is absorbed by earths surface?
The Earth receives 174 petawatts [See Link] of incoming solar radiation (insolation) at the upper atmosphere. Approximately 30% is reflected back to space while the rest is absorbed by clouds, oceans and land masses. For a pictorial description of insolation losses [See Link]
Use The Sun To Tell Time All Night Long?
More DIY videos at 5min.comIt doesn't take much to help contribute to the renewable energy movement at an individual level. Beyond the tried and true methods such as recycling and conservation, even the little people of the world can harness the 174 petawatts emitted by the Sun annually. In this case, all you need is a battery operated clock, some glue, and around five dollars.Once you have selected a battery operated clock to convert to solar, you need to measure the power requirements of the clock with a multimeter. Most small clocks need only 60-120 milliamps to operate. After determining this figure, you have to order a solar panel that will provide you with the appropriate power. Ebay is an excellent place to find these panels and they should not cost more than five dollars.With the solar panel in possession, you can connect the wires from the solar panel to the correct battery terminal. Is is then necessary to affix the panel itself to the clock with a glue gun. Apply liberally to ensure that the panel will remain attached to the clock. Positioning the panel near the top of the clock would be wise for catching sunlight without obstruction.With the panel attached the clock may be unbalanced and unable to stand. If this is so, attach small bits of plastic or wood to the base of the clock to the legs of the clock. This will offset the weight of the panel. Finally, look for a location in your home where you can place the clock in direct sunlight. Now you have a solar clock that will run on the sun as long as it shines!
Solar radiation warms the surface of the planet and then is radiated back in the form of?
Electro-magnetic Radiant Energy, that can be referred to as the electromagnetic radiation in all the the EM bands. As well, the Solar wind contains physical particles that bombard - in a streaming function - the Surface of the Earth and produce the Aurora Borealis.
How many of the suns photons are absorbed by earth?
The sum of these little guys, photons covering all frequencies and covering all the earth (without being reflected or scattered off) is a really, really, really big number. Even over a short period of time. (And the answer would have to be averaged for a number of reasons.) Something like 2 x 10really big number per day would be close.
What percentage of the sun energy that reaches the earth is absorb by earths surface?
About 50 percent of the Sun's incoming energy is absorbed by the Earth's surface. In addition, about 9 percent is reflected.About 22 percent of the Sun's incoming energy is reflected by clouds and the atmosphere.About 19 percent of the Sun's incoming energy is absorbed by clouds and the atmosphere.
About how much of the solar energy that reaches earth passes through the atmosphere and is absorbed by the surface of earth?
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 much fossil fuel does Germany use up in one year?
In 2008, total worldwide energy consumption was 474 exajoules (474×1018J) with 80 to 90 percent derived from the combustion of fossil fuels.[1] This is equivalent to an average annual power consumption rate of 15 terawatts (1.504×1013W). Not all of the world's economies track their energy consumption with the same rigor, and the exact energy content of a barrel of oil or a ton of coal will vary with quality.Despite advances in efficiency and sustainability, of all the energy harnessed since the industrial revolution, more than half has been consumed in the last two decades.[11] However, when considering this fact, it should not be overlooked that this is primarily the result of global increases in the standard of living and of the increase in world population, and not as a failing of energy management as a whole.In 2009, world energy consumption decreased for the first time in 30 years (-1.1%) or 130 Mtoe (Megaton oil equivalent), as a result of the financial and economic crisis (GDP drop by 0.6% in 2009).[12] This evolution is the result of two contrasting trends. Energy consumption growth remained vigorous in several developing countries, specifically in Asia (+4%). Conversely, in OECD, consumption was severely cut by 4.7% in 2009 and was thus almost down to its 2000 levels. In North America, Europe and CIS, consumptions shrank by 4.5%, 5% and 8.5% respectively due to the slowdown in economic activity. China became the world's largest energy consumer (18% of the total) since its consumption surged by 8% during 2009 (from 4% in 2008). Oil remained the largest energy source (33%) despite the fact that its share has been decreasing over time. Coal posted a growing role in the world's energy consumption: in 2009, it accounted for 27% of the total.Most of the world's energy resources are from the sun's rays hitting earth. Some of that energy has been preserved as fossil energy, some is directly or indirectly usable; for example, via wind, hydro- or wave power. The term solar constant is the amount of incoming solar electromagnetic radiation per unit area, measured on the outer surface of Earth's atmosphere, in a plane perpendicular to the rays. The solar constant includes all types of solar radiation, not just visible light. It is measured by satellite to be roughly 1366 watts per square meter, though it fluctuates by about 6.9% during a year-from 1412 W m−2 in early January to 1321 W m−2 in early July, due to the Earth's varying distance from the sun, and by a few parts per thousand[clarification needed] from day to day. For the whole Earth, with a cross section of 127,400,000 km2, the total energy rate is 174 petawatts (1.740×1017W), plus or minus 3.5%. This value is the total rate of solar energy received by the planet; about half, 89 PW, reaches the Earth's surface.[citation needed]The estimates of remaining non-renewable worldwide energy resources vary, with the remaining fossil fuels totaling an estimated 0.4 YJ (1 YJ = 1024J) and the available nuclear fuel such as uranium exceeding 2.5 YJ. Fossil fuels range from 0.6-3 YJ if estimates of reserves of methane clathrates are accurate and become technically extractable. Mostly thanks to the Sun, the world also has a renewable usable energy flux that exceeds 120 PW (8,000 times 2004 total usage), or 3.8 YJ/yr, dwarfing all non-renewable resources.
