Question
In: Physics
Question 2: On August 21, 2017, the Sun was at a distance of ~1.0115 AU from...
Question 2: On August 21, 2017, the Sun was at a distance of ~1.0115 AU from Earth, and most of the continental United States experienced a solar eclipse.
a) Calculate the angular size of the Sun as seen from Earth on that date.
b) Given that the Moon's angular size varies over the course of its orbit as given by the plots you created for Question 1, over approximately what fraction of the Moon's orbit does it appear to be large enough to create a total eclipse if the Sun were always the apparent size it was on August 21?
c) Without doing a detailed calculation, can you come up with a rough estimate for how frequently we should expect solar eclipses to be annular vs. total?
Solutions
genius_generous answered 2 years agoRelated Solutions
A planet orbits a Sun-like star at an orbital distance of 40 AU. What is its...
A planet orbits a Sun-like star at an orbital distance of 40 AU.
What is its orbital period?
The Earth orbits the Sun once every year at a distance of 1 AU. What would...
The Earth orbits the Sun once every year at a distance of 1 AU.
What would the semimajor axis (orbital distance from the Sun) need
to be for another planet to have an orbital period of exactly two
years (i.e., an orbital period twice as long as Earth’s)?
The Earth orbits the Sun once every year at a distance of 1 AU. What would...
The Earth orbits the Sun once every year at a distance of 1 AU.
What would the semimajor axis (orbital distance from the Sun) need
to be for another planet to have an orbital period of exactly two
years (i.e., an orbital period twice as long as Earth’s)? Using
Keplers Third Law
3-part question based on this data: Planet Distance from Sun (in millions of miles) Years (as...
3-part question based on this data:
Planet
Distance from Sun
(in millions of
miles)
Years (as a
fraction of Earth
years)
ln(Dist)
ln(Year)
Mercury
36.19
0.2410
3.5889
-1.4229
Venus
67.63
0.6156
4.2140
-0.4851
Earth
93.50
1.0007
4.5380
0.0007
Mars
142.46
1.8821
4.9591
0.6324
Jupiter
486.46
11.8704
6.1871
2.4741
Saturn
893.38
29.4580
6.7950
3.3830
Uranus
1,794.37
84.0100
7.4924
4.4309
Neptune
2,815.19
164.7800
7.9428
5.1046
Pluto
3,695.95
248.5400
8.2150
5.5156
a) Draw a scatterplot of Distance vs. Year (using the
untransformed data)...
At our distance from the Sun, the intensity of solar radiation is 1370 W/m^2. As discussed...
At our distance from the Sun, the intensity of solar radiation
is 1370 W/m^2. As discussed in class and in the textbook, the
temperature of the Earth is affected by the greenhouse effect of
the atmosphere. This phenomenon describes the effect of absorption
of infrared radiation by the surface so as to make the surface
temperature of the Earth higher than if it were airless. The
average global surface temperature of the Earth is ~288 K.
Calculate the surface temperature...
2017 Eclipse: Describe the eclipse that occurred on August 21, 2017, tell its type why it...
2017 Eclipse: Describe the eclipse that occurred on August 21,
2017, tell its type why it was special to the viewers, how it
looked and how it was safely viewed (as with other eclipses).
From the solar constant and the average distance between the sun and the earth, estimate (a)...
From the solar constant and the average distance between the sun
and the earth, estimate (a) the total power emitted by the sun, in
megawatts, and (b) the mass loss of the sun, in tons per day
Jupiter is at an average distance from the Sun of 778,000,000 kilometers. It has a radius...
Jupiter is at an average distance from the Sun of 778,000,000
kilometers. It has a radius of 71,492 kilometers and a mass of
1.898 x 1027 kilograms. The Sun has a mass of 1.989 x 1030
kilograms. Answer the following:
*What is the acceleration due to gravity on Jupiter?
*How long does it take to revolve around the Sun in
Earth-years?
*How fast is it moving in its orbit around the Sun?
*What is the magnitude of the force of...
The maximum distance from the Earth to the Sun (at aphelion) is 1.521 1011 m, and...
The maximum distance from the Earth to the Sun (at aphelion) is
1.521 1011 m, and the distance of closest approach (at perihelion)
is 1.471 1011 m. The Earth's orbital speed at perihelion is 3.027
104 m/s. Ignore the effect of the Moon and other planets. (a)
Determine the Earth's orbital speed at aphelion. m/s (b) Determine
the kinetic and potential energies of the Earth
The Venus-Sun distance is 108 million kilometers, and the Earth-Sun distance is 150 million kilometers. Suppose...
The Venus-Sun distance is 108 million kilometers, and the
Earth-Sun distance is 150 million kilometers. Suppose an imaginary
line from Venus to the Sun forms a right angle with an imaginary
line from Earth to the Sun. How long would it take light to travel
from the Sun to a spaceship halfway along the straight-line path
between Venus and Earth? The time is in minutes.
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