Question
In: Physics
The Earth-atmosphere system absorbs energy from the sun and radiates it back into space as black-body...
The Earth-atmosphere system absorbs energy from the sun and radiates it back into space as black-body radiation. (a) Make an estimate for the overall average temperature of the Earth-atmosphere system. You must explain your reasoning in making this estimate. (b) Use you answer in (a) to determine the wavelength of the most plentiful black-body radiation from the system?
Solutions
genius_generous answered 2 years agoRelated Solutions
The Sun radiates energy at a rate of about 4 × 1026 W. 1) At what...
The Sun radiates energy at a rate of about 4 × 1026 W.
1) At what distance from the Sun is its intensity the same as
that of a 100 W light bulb 1 m away from you?
2) How does that compare to the distance between the Sun and the
Earth?
3) Between which 2 planets’ orbits does this distance lie?
Radiation from the Sun reaching Earth (just outside the atmosphere) has an intensity of 1400 W/m2....
Radiation from the Sun reaching Earth (just outside the
atmosphere) has an intensity of 1400 W/m2. What
would the intensity be at Uranus?
Assuming that Earth (and its atmosphere) behaves like a flat
disk perpendicular to the Sun's rays and that all the incident
energy is absorbed, calculate the force on Earth due to radiation
pressure.
What would it be for Uranus?
What is the force on the Earth due to the sun's gravitational
attraction?
What is it for Uranus?
Radiation from the Sun reaching Earth (just outside the atmosphere) has an intensity of 1.35 kW/m2....
Radiation from the Sun reaching Earth (just outside the
atmosphere) has an intensity of 1.35 kW/m2.
(a) Assuming that Earth (and its atmosphere)
behaves like a flat disk perpendicular to the Sun's rays and that
all the incident energy is absorbed, calculate the force on Earth
due to radiation pressure. (b) For comparison,
calculate the force due to the Sun's gravitational attraction.
Assume that the speed of light and Earth radius are 2.998 ×
108 m/s and 6.37 thousand km...
1. (a) What is the rate at which the Sun delivers energy to the entire Earth...
1. (a) What is the rate at which the Sun delivers energy to the
entire Earth ? Assume that all of the incident energy is absorbed.
(b) From the internet (or whatever information source handy), find
out the total rate at which energy is used by humans per second,
and compare with your estimate in Part (a). What area of solar
panels would be required to provide all the power required by the
Earth’s population ? (Assume the panels have...
When Earth is furthest from the Sun, called aphelion, it is 152,100,000 km from the Sun...
When Earth is furthest from the Sun, called aphelion, it is
152,100,000 km from the Sun and has an orbital speed of 29,290 m/s.
What is its orbital speed at perihelion, when it is 147,090,000 km
from the Sun?
____________ m/s
When Earth is furthest from the Sun, called aphelion, it is 152,100,000 km from the Sun...
When Earth is furthest from the Sun, called aphelion, it is
152,100,000 km from the Sun and has an orbital speed of 29,290 m/s.
What is its orbital speed at perihelion, when it is 147,090,000 km
from the Sun?
In m/s?
Estimate how much energy Earth receives from the Sun every year. The solar constant is about...
Estimate how much energy Earth receives from the Sun every
year.
The solar constant is about 1000 Watts per square meter.
An area scales as a distance squared.
1. Estimate the surface area of the Earth facing the Sun (in
meters2)
2. Estimate how much power reaches the Earth's surface (in
Watt).
3. Estimate how much solar energy reaches the earth per year (in
Joule).
4. Estimate the current annual world consumption of energy per
year (in Joule).
5. Estimate...
Space Weather merges astronomy and meteorology to explain how events on the Sun and in near-Earth...
Space Weather merges astronomy and meteorology to explain how
events on the Sun and in near-Earth space can adversely impact the
operation of Earth-orbiting satellites, communications systems, and
many other systems on or near the Earth. discuss some aspect of
space weather (what it is, how it's studied, its effect on us,
etc.) that you find particularly interesting.
Instructions: Your initial post should be at least 200
words.
32 approximately what percent of the sunlight striking the earth is actually reflected back into space...
32 approximately what percent of the sunlight striking the earth
is actually reflected back into space on any given day?
33 In the evolutionary sense, a measure of an individual
organism's relative fitness is a measure of its_________
34 The light Dependent step in photosynthesis is also known as
the Krebs Cycle (T / F)
Observing the solar system model of concentric circles with center being the sun. The Earth is...
Observing the solar system model of concentric circles with
center being the sun. The Earth is 1 AU from the sun. 1 AU is equal
to about 150 million kilometers (93 million miles). Using a scale
factor of 1010 meters per astronomical unit (AU); let
say that the Earth is 15 meters away from the sun. And let say,
Earth takes on an average 365 days to complete a full cycle around
the sun.
How far Earth travels in its...
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