3. The sun can be approximated as a spherical black body with a surface temperature of...
3. The sun can be approximated as a spherical black body
with a surface temperature of 5762 K. The irradiation from
the
sun, as measured by a satellite in earth orbit, is 1353
W/m2. The
distance from the earth to the sun is approximately 1.5 x
1011 m.
Assuming that the sun radiates evenly in all directions,
estimate
the diameter of the sun.
Homework Answers
Add Answer to:
3. The sun can be approximated as a spherical black body
with a surface temperature of...
(a) Calculate the sun’s energy output assuming the sun is a black body radiator at 5800K...
(a) Calculate the sun’s energy output assuming the sun is a black body radiator at 5800K surface temperature, and its diameter is 1.39E+06 km. (b) (And) from the earth orbit diameter calculate the energy actually reaching the top of the earth’s atmosphere, and compare it to the solar constant.
Warm Up The surface of the Earth receives approximately 1000 W/m2 (Watts per square meter) of energy from the Sun....
Warm Up The surface of the Earth receives approximately 1000 W/m2 (Watts per square meter) of energy from the Sun. This number rises to about 1386 W/m2 in the upper atmosphere (r 6.4 x 106 m) The sun is 1 AU (1.496 x 1011 m) away Over what area is the Sun's energy spread at the Earth's distance? How much power is the Sun releasing?
Warm Up The surface of the Earth receives approximately 1000 W/m2 (Watts per square meter)...
Problem 4: Radiation from the Sun The intensity of the radiation from the Sun is 1360...
Problem 4: Radiation from the Sun The intensity of the radiation from the Sun is 1360 W/m2 and frequency is f60 MHz. The distance between the Earth and the Sun is 1.5 x 1011m a) Assuming it radiates uniformly in all directions what is the total power output of the Sun? b) If the frequency increases by 1 MHz what would be the relative change in the power output?
A star can be approximated to a black body mostly constituted of gas with a surface...
A star can be approximated to a black body mostly constituted of gas with a surface temperature T. From the black body density of oscillators we can demonstrate that the power emitted in the forward direction by the star of surface area A per unit wavelength is: A exp( )-1 (Eg.1) Maximum emission Using Equation I , give an approximation of the power Permitted at short wavelengths (λ<<1). c.
12.62 Two plates, one with a black painted surface and the other with a special coating (chemical...
12.62 Two plates, one with a black painted surface and the other with a special coating (chemically oxidized copper) are in earth orbit and are exposed to solar radiation. The solar rays make an angle of 30° with the normal to the plate. Estimate the equilibrium temperature of each plate assuming they are diffuse and that the solar flux is 1368 W/m2. The spectral absorptivity of the black painted surface can be approximated by αλ = o.95 foros λ oc...
At our distance from the Sun, the intensity of solar radiation is 1370 W/m2. The temperature...
At our distance from the Sun, the intensity of solar radiation is 1370 W/m2. The temperature of the Earth is affected by the greenhouse effect of the atmosphere. This phenomenon describes the ef- fect of absorption of infrared light emitted by the surface so as to make the surface temperature of the Earth higher than if it were airless. For comparison, consider a spherical object of radius r with no atmosphere at the same distance from the Sun as the...
need help with part b Problem 4: Radiation from the Sun The intensity of the radiation...
need help with part b
Problem 4: Radiation from the Sun The intensity of the radiation from the Sun is 1360 W/m2 and frequency is f = 60MHz The distance between the Earth and the Sun is 1.5 x 10 เร็3.1. a) Assuming it radiates uniformly in all directions what is the total power output of the Sun? b) If the frequency increases by 1 MHz what would be the relative change in the power output?
Bonus Problem #4: due date May 9 (Thursday). Total bonus points-40 Objective: to determine the surface temperature of the Mars in [K] Given: Distance between the Sun and the Mars -2.28 x 1011 m Diame...
Bonus Problem #4: due date May 9 (Thursday). Total bonus points-40 Objective: to determine the surface temperature of the Mars in [K] Given: Distance between the Sun and the Mars -2.28 x 1011 m Diameter of the Sun -1.39 x 109 m Assume both the Sun and the Mars are blackbodies If two students work together, the credit will be split. Mars 50003 Earth Orbit 1 Earth Year 365 days Mars Year 687 Earth days or 669 sols (martian days)...
I can see here that for question B Stefan–Boltzmann law was used. However, the energy per unit area is being divided per 4. why? The ratio distance of Mars from the Sun 1.5 6. distance of Earth from...
I can see here that for question B Stefan–Boltzmann law was
used. However, the energy per unit area is being divided per 4.
why?
The ratio distance of Mars from the Sun 1.5 6. distance of Earth from the Sun (a) Show that the intensity of solar radiation at the orbit of Mars is about 600 W m2 (b) Determine, in K, the mean surface temperature of Mars. Assume that Mars acts as a black body. 121 (c) The atmosphere...
Problem 3: The Rosetta spacecraft landed a probe on the comet Churyumov-Gerasimenko. It has a mass...
Problem 3: The Rosetta spacecraft landed a probe on the comet Churyumov-Gerasimenko. It has a mass of appeoximately 1 x 10 kg and has an average density of approximately 400 kg/m. It is far from spherical, but for this problem go ahead and assume it is spherical. Estimate the radius, the acceleration due to gravity at the surface and the escape velocity from its surface. (10 points) Problem 4: A GPS satellite has a mass of 1940 kg and is...
Warm Up The surface of the Earth receives approximately 1000 W/m2 (Watts per square meter) of energy from the Sun. This number rises to about 1386 W/m2 in the upper atmosphere (r 6.4 x 106 m) The sun is 1 AU (1.496 x 1011 m) away Over what area is the Sun's energy spread at the Earth's distance? How much power is the Sun releasing?
Warm Up The surface of the Earth receives approximately 1000 W/m2 (Watts per square meter)...
Problem 4: Radiation from the Sun The intensity of the radiation from the Sun is 1360 W/m2 and frequency is f60 MHz. The distance between the Earth and the Sun is 1.5 x 1011m a) Assuming it radiates uniformly in all directions what is the total power output of the Sun? b) If the frequency increases by 1 MHz what would be the relative change in the power output?
A star can be approximated to a black body mostly constituted of gas with a surface temperature T. From the black body density of oscillators we can demonstrate that the power emitted in the forward direction by the star of surface area A per unit wavelength is: A exp( )-1 (Eg.1) Maximum emission Using Equation I , give an approximation of the power Permitted at short wavelengths (λ<<1). c.
12.62 Two plates, one with a black painted surface and the other with a special coating (chemically oxidized copper) are in earth orbit and are exposed to solar radiation. The solar rays make an angle of 30° with the normal to the plate. Estimate the equilibrium temperature of each plate assuming they are diffuse and that the solar flux is 1368 W/m2. The spectral absorptivity of the black painted surface can be approximated by αλ = o.95 foros λ oc...
At our distance from the Sun, the intensity of solar radiation is 1370 W/m2. The temperature of the Earth is affected by the greenhouse effect of the atmosphere. This phenomenon describes the ef- fect of absorption of infrared light emitted by the surface so as to make the surface temperature of the Earth higher than if it were airless. For comparison, consider a spherical object of radius r with no atmosphere at the same distance from the Sun as the...
need help with part b
Problem 4: Radiation from the Sun The intensity of the radiation from the Sun is 1360 W/m2 and frequency is f = 60MHz The distance between the Earth and the Sun is 1.5 x 10 เร็3.1. a) Assuming it radiates uniformly in all directions what is the total power output of the Sun? b) If the frequency increases by 1 MHz what would be the relative change in the power output?
Bonus Problem #4: due date May 9 (Thursday). Total bonus points-40 Objective: to determine the surface temperature of the Mars in [K] Given: Distance between the Sun and the Mars -2.28 x 1011 m Diameter of the Sun -1.39 x 109 m Assume both the Sun and the Mars are blackbodies If two students work together, the credit will be split. Mars 50003 Earth Orbit 1 Earth Year 365 days Mars Year 687 Earth days or 669 sols (martian days)...
I can see here that for question B Stefan–Boltzmann law was
used. However, the energy per unit area is being divided per 4.
why?
The ratio distance of Mars from the Sun 1.5 6. distance of Earth from the Sun (a) Show that the intensity of solar radiation at the orbit of Mars is about 600 W m2 (b) Determine, in K, the mean surface temperature of Mars. Assume that Mars acts as a black body. 121 (c) The atmosphere...
Problem 3: The Rosetta spacecraft landed a probe on the comet Churyumov-Gerasimenko. It has a mass of appeoximately 1 x 10 kg and has an average density of approximately 400 kg/m. It is far from spherical, but for this problem go ahead and assume it is spherical. Estimate the radius, the acceleration due to gravity at the surface and the escape velocity from its surface. (10 points) Problem 4: A GPS satellite has a mass of 1940 kg and is...
Most questions answered within 3 hours.
-
Arbitration of disputes under the purview of "lemon laws" under
state statute is:
not required by...
asked 3 minutes ago -
Describe three pieces of evidence that mitochondria and evolved
from symbiotic mutualisms between a eukaryote (or...
asked 11 minutes ago -
An AM transmitter with a carrier power of 20 kW is connected to
a 50 Ω...
asked 19 minutes ago -
JAVA
Beginnings of a paper-rock-scissors game.
Paper-rock-scissors is a game often used to make decisions.
There...
asked 24 minutes ago -
Consider a concept learning example of 5 attributes. Attributes
can take one of (5,3,2,2,6) values respectively....
asked 30 minutes ago -
Red light of wavelength 675 nm is incident on a slit of width
4.56 × 10−6...
asked 40 minutes ago -
An object 4.0 mm high is on the optical axis of two lenses with
focal lengths...
asked 36 minutes ago -
Suppose that each team in a league has a demand curve for
generic advertising (a league-wide...
asked 36 minutes ago -
1. The WJC purchases denim. The avg. daily demand of
western is 1000 yards and the...
asked 45 minutes ago -
Memory Allocation
a) Is it possible to have both internal and external
fragmentation with fixed partition...
asked 46 minutes ago -
Steven can afford car payments of $300 a month for 72 months.
The bank will lend...
asked 1 hour ago -
Embedded
System..
1.
Analyze
the instruction
sets below.
LDR R1, [R0,
#0x08]
SUB R1, R1,
R2,...
asked 1 hour ago