Suppose a galaxy’s spectrum is redshifted by 15.8%. What is the recession velocity of this...
Suppose a galaxy’s spectrum is redshifted by 15.8%. What is the recession velocity of
this galaxy?
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Suppose a galaxy’s spectrum is redshifted by 15.8%. What is the
recession velocity of
this...
3. The observed recession velocity of a galaxy is the sum of its Hubble flow velocity,...
3. The observed recession velocity of a galaxy is the sum of its Hubble flow velocity, UH = Hod, and the line-of-sight (LOS) component of its peculiar velocity, vp, due to local gravitational effects. a) Suppose we measure Ho by measuring the distance and redshift for a single galaxy velocity of the galaxy?10 b) At what distance can we measure Ho to 5%? Assume the true value of Ho is 74 kin s-"Mpc-1 and a typical LOS peculiar velocity is...
The observed recession velocity of a galaxy is the sum of its Hubble flow velocity, vH...
The observed recession velocity of a galaxy is the sum of its Hubble flow velocity, vH = H0d, and the line-of-sight (LOS) component of its peculiar velocity, vp, due to local gravitational effects. a) Suppose we measure H0 by measuring the distance and redshift for a single galaxy. Write an expression for how the error in our measurement depends on the peculiar velocity of the galaxy? b) At what distance can we measure H0 to 5%? Assume the true value...
Suppose that a galaxy's 21-cm line of atomic hydrogen is shifted to 22.8 cm. a. What...
Suppose that a galaxy's 21-cm line of atomic hydrogen is shifted to 22.8 cm. a. What is the redshift of the galaxy? z = b. What is its recession velocity? km/s
(c) The following galaxies have had their redshifts measured, and from those, their recession velocities inferred....
(c) The following galaxies have had their redshifts measured, and from those, their recession velocities inferred. Using the formulas introduced in the above lesson (under the heading A Shortcut to Galaxy Distances), complete the following table. Assume H 70 km/(s/Mpc). Distance d (Mpc) Redshift z Galaxy Velocity v (km/s) 0.0046 NGC 1326 1,370 NGC 2410 4,600 65.7 NGC 3506 0.021
The Hubble Parameter The constant describing the rate of this recession, called the Hubble parameterHubble parameterA...
The Hubble Parameter
The constant describing the rate of this recession, called the
Hubble parameterHubble parameterA measure of the rate of expansion
of the universe, which is the average value of the velocity of
recession divided by distance: about 70 km/s/megaparsec. Hubble
parameter A measure of the rate of expansion of the universe, which
is the average value of the velocity of recession divided by
distance: about 70 km/s/megaparsec. , is used to determine the age
and size of the...
Suppose that, during the onset of the last recession, the velocity of base money fell. Show...
Suppose that, during the onset of the last recession, the velocity of base money fell. Show the effect of this using a graph of the market for non-money goods (AD-AS) and a money market graph where the supply of money is perfectly inelastic. Show the effect of this using a graph of the market for non-money goods (AD-AS) and a money market graph where the supply of money is relatively elastic. (Be sure to show how the change in the...
Light and the Electromagnetic Spectrum Examples 1) The distance from the Sun to Earth is 1.50...
Light and the Electromagnetic Spectrum Examples 1) The distance from the Sun to Earth is 1.50 x 1011 m. How long does it take for light to cover this distance? 2) Suppose a particular galaxy emits orange light with a frequency of 5.000 x 1024 Hz. If the galaxy is moving away from Earth with a speed of 3325 km/s, what is the frequency of the light when it is observed on Earth?
What is the distance of a galaxy with a recession speed of 320,000 km/sec? (use H = 80 km/sec/Mpc) 4,000 km ...
What is the distance of a galaxy with a recession speed of 320,000 km/sec? (use H = 80 km/sec/Mpc) 4,000 km 25,600,000 Mpc 4,000 Mpc 25,600,000 km
Question 1 Suppose that the empire of Arendelle is still in a recession. Queen Elsa now...
Question 1 Suppose that the empire of Arendelle is still in a recession. Queen Elsa now cannot stand the sight of you and has relocated you to the Central Bank of the empire. Free from the political and governmental constraints, you focus on what you can do to help stabilize the economy. a) What type of monetary policy should be used to help the empire get out of recession? b) Detail the processes of the above policy in regards to...
11. The economy is experiencing a recession. Suppose ramen noodles is an inferior good. What happens...
11.
The economy is experiencing a recession. Suppose ramen noodles is
an inferior good. What happens to the equilibrium quantity of ramen
noodles?
8:29 CH Th 6 30 thg 989% Times New Roma 14 BIA 1 11. The economy is experiencing a recession. Suppose ramen noodles is an inferior good. What happens to the equilibrium quantity of ramen noodles? 12. Consider the following graph which shows the market for laptops. Give one possible scenario such that demand curve shifts from...
3. The observed recession velocity of a galaxy is the sum of its Hubble flow velocity, UH = Hod, and the line-of-sight (LOS) component of its peculiar velocity, vp, due to local gravitational effects. a) Suppose we measure Ho by measuring the distance and redshift for a single galaxy velocity of the galaxy?10 b) At what distance can we measure Ho to 5%? Assume the true value of Ho is 74 kin s-"Mpc-1 and a typical LOS peculiar velocity is...
(c) The following galaxies have had their redshifts measured, and from those, their recession velocities inferred. Using the formulas introduced in the above lesson (under the heading A Shortcut to Galaxy Distances), complete the following table. Assume H 70 km/(s/Mpc). Distance d (Mpc) Redshift z Galaxy Velocity v (km/s) 0.0046 NGC 1326 1,370 NGC 2410 4,600 65.7 NGC 3506 0.021
The Hubble Parameter
The constant describing the rate of this recession, called the
Hubble parameterHubble parameterA measure of the rate of expansion
of the universe, which is the average value of the velocity of
recession divided by distance: about 70 km/s/megaparsec. Hubble
parameter A measure of the rate of expansion of the universe, which
is the average value of the velocity of recession divided by
distance: about 70 km/s/megaparsec. , is used to determine the age
and size of the...
Light and the Electromagnetic Spectrum Examples 1) The distance from the Sun to Earth is 1.50 x 1011 m. How long does it take for light to cover this distance? 2) Suppose a particular galaxy emits orange light with a frequency of 5.000 x 1024 Hz. If the galaxy is moving away from Earth with a speed of 3325 km/s, what is the frequency of the light when it is observed on Earth?
Question 1 Suppose that the empire of Arendelle is still in a recession. Queen Elsa now cannot stand the sight of you and has relocated you to the Central Bank of the empire. Free from the political and governmental constraints, you focus on what you can do to help stabilize the economy. a) What type of monetary policy should be used to help the empire get out of recession? b) Detail the processes of the above policy in regards to...
11.
The economy is experiencing a recession. Suppose ramen noodles is
an inferior good. What happens to the equilibrium quantity of ramen
noodles?
8:29 CH Th 6 30 thg 989% Times New Roma 14 BIA 1 11. The economy is experiencing a recession. Suppose ramen noodles is an inferior good. What happens to the equilibrium quantity of ramen noodles? 12. Consider the following graph which shows the market for laptops. Give one possible scenario such that demand curve shifts from...
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