25 Which model below best represents the relative sizes of celestial objects from largest to smallest? Earth Sun Solar system Universe A Universe Solar system Sun Earth B Earth Solar system Sun Universe C Universe Sun Solar system Earth D

Q: Which of the following statements about stellar parallax is true? A. We observe all stars to exhibit…

A: Stellar parallax is a method used to calculate the distance between the Earth and a star. It is done…

Q: On Earth, the parallax angle measured for the star Procyon is 0.29 arcseconds. If you were to…

A: Write the relation in distance and parallax angle. d=1p

Q: Masses of stars and galaxies are usually expressed in terms of   A) neutron mass B) earth's mass C)…

A: The solar mass is the standard unit of mass in astronomy, equal to approximately 2×1030 kg.

Q: ccording to modern science, the age of the universe is about         a. 6,000 years   b.  14…

A: Question asked : Age of the universe, according to the modern science

Q: If our universe is expanding, what are the implications for the separation between two stars within…

A: C. The distance between the two stars is unaffected

Q: Which of these correctly compares the masses of different objects in the universe O A moon has less…

A: Correctly compared statement is: Moon has less mass then a star and more mass then the planet it…

Q: Which of these is about 100,000 light-years in diamete A The Solar System (B) The Andromeda Star The…

A: we have to tell the correct options from the given options.

Q: A series AC circuit contains a resistor, an inductor of 210 mH, a capacitor of 5.10 µF, and a source…

A:

Q: Table 1: Outer region selected stars data Star Orbital radius of star Measured speed (x 10° m/s)…

A: It is given that,

Q: Describe the purpose of the formula below. Then create a question about the universe that can be…

A: Given :        z = ∆λλ = vcQuestions to answer :  a) Describe the purpose of the formula.  b) Create…

Q: llustrate the Models of the Universe 1. Heliocentric System with circular orbits 2. Geocentric…

A: In this question we define the models of universe for heliocentric, geocentric system, heliocentric…

Q: Measure the length of the meter stick using your ruler. How many ‘rulers’ is equal to the length of…

A: A standard wooden/plastic ruler measures 1 feet i.e. 12 inches or 30 cm.  As a meter stick is 1…

Q: Despite its age, the size of the universe by diameter is the following: a) 13.8 x 10^9 ly  b) 10 x…

A: The age of the universe is considered to be 13.7 billion years. A light-year is a unit of distance.…

Q: What happens when galaxies collide? A. Star collisions will be rare but the shapes of the galaxies…

A: You are correct. The answer is A. A. Star collisions will be rare but the shapes of the galaxies…

Q: Exercise: One parsec is a unit of distance equal to roughly 3.25 light-years. The prefix Mega means…

A: For this problem, it is required to convert the distance 24 Mpc into kilometers. It is given that, 1…

Q: It is important to have an idea about the distances between and relative sizes of celestial objects…

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Q: 4 2.

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Q: How does the age of the universe relate to the Hubble constant?   a. The smaller the constant, the…

A: As we know that the inverse of the Hubble constant gives us the age of the universe and which is…

Q: Compare the values of the number of grains of sand in all earth’s beaches with the number of stars…

A:

Q: distant galaxy has an apparent magnitude of 10 and is 4,000 kpc away. What is its absolute…

A:

Q: QUESTION 20 16 17 Y or 18 Z or 19 x- 20 Y X = %3D

A:

Q: In an open universe, the overall geometry of the Universe would be a. flat b. spherical c.…

A: There are generally three possible shapes of the universe, namely 1)flat universe 2)spherical…

Q: 6. 10 8. Number 7 best represents? Oa. Right Ascension Ob. Declination Oc. the North Celestial Pole…

A: Equator is the line which marks the 0° latitude line and it circles the sky, this is celestial…

Q: How many kilometers make one light year? a) 9.4607 × 1012 km b) 9.4607 × 109 km c) 9.4607 × 1011…

A: To find: How many kilometers make one light year

Q: How big is the universe

A: As of now the observable universe is about 13.7 billion light years across and it is expanding at…

Q: Which of the following is not an implication of Hubble’s law? a) The universe is expanding b) We…

A: Option b

Q: Write the following measurements in scientific notation. All answers should be written up to…

A: Given  1. diameter of the          sun 1391400 km   2. Speed of light 2997792458 m/s…

Q: Of the following groupings of galaxies, the one that is largest in size is the   a. Local…

A: