Answered: Joaquin tells his science class that…

Joaquin tells his science class that galaxies consist of gas, dust, and many planets. What is the most important component of galaxies Joaquin is missing in his description

Stars and Galaxies (MindTap Course List)

10th Edition

ISBN:9781337399944

Author:Michael A. Seeds

Publisher:Michael A. Seeds

Chapter16: Galaxies

Section: Chapter Questions

Problem 32RQ

See similar textbooks

Related questions

Q: The distance to the Andromeda Galaxy is estimated at about 2 x 106 light years. A light year is the…

A: solution is given as

Q: Olbers's paradox is solved in part by the fact that the universe is neither infinitely large nor…

A: Olber's paradox is solved by fact that universe is expanding.

Q: A star, which is 2.3 x 1020 m from the center of a galaxy, revolves around that center once every…

Q: Because the galaxies are moving away from us, the light they emit is shifted toward the shorter,…

A: Question: Because the galaxies are moving away from us, the light they emit________________

Q: e gravitational energy of a pair of colliding galaxies , each of mass 10 Mo separated by a distance…

Q: Observations of distant galaxies show O they appear older than they really are. the size of the…

A: We are able to observe because of light reach us from the stars.

Q: It is believed that there is a black hole with a mass of approximately four million times the mass…

Q: What has occurred after the Big Bang? Objects in the universe have reached a critical density.…

A: The big bang is how astronomers describe the way the universe started. It is the vision that the…

Q: In the image below you see two interacting galaxies; one is nearly face -on and the other is nearly…

A: The shape of the galaxies says the evidence of the tidal disruption.

Q: The Andromeda Galaxy has a mass of around 4 x 10* 42 kg and is 2.4 x 10*22 m away. What is your…

A: Given data: Mass of galaxy (M) = 4×1042 kg Distance from centre of mass (r) = 2.4×1022 m

Q: Galaxy B moves away from galaxy A at 0.519 times the speed of light. Galaxy C moves away from galaxy…

Q: Neutron stars are some of the densest objects in the universe. They form during supernova ex-…

A: Given:- The Density of the Neutron is 5 x 1017 kg/m3 The mass of the earth is M = 5.97 x 1024 kg…

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: Spectroscopy is used to help astronomers analyze and catalogue objects as they map the universe. One…

A: Spectroscopy is a branch of physical sciences which deals with study and observation of spectra…

Q: Which galaxies are moving the fastest away from us?

A: Our nearest galaxy is Milky way.

Q: A star is observed to undergo circular orbit around the black hole located at the centre of the…

A: We have a star which is undergoing a circular orbit of radius R=1000 AU=1.469*1014m with a time…

Q: The evidence leads modern astronomers to conclude that at the cores of active galaxies are…

A: Required : Mass of Supermassive Blackholes in terms of solar mass.

Q: What type of galaxy does this picture represent? O Elliptical O Irregular O Spiral

A: The galaxy of the shape of an ellipse is known as an elliptical galaxy.

Q: a.) Galaxy B moves away from galaxy A at 0.521 times the speed of light. Galaxy C moves away from…

A: Given ( a )Galaxy B moves away from galaxy A at 0.521 times the speed of light Galaxy C moves away…

Q: 17. Which of the following statements BEST describes a black hole? use? A. It does not allow light…

A: Answer:B . It is located at center of of a galaxy. C. It is so dense that not even light can escape.…

Q: What is the frequency of a red laser beam, with a wavelength of 670 nm, which your astronomy…

Q: Fourteen years ago, a quasar was found to be located 8 billion light years away. If the age of the…

Q: The Sun orbits the center of the Milky Way galaxy once each 2.60 × 108 years, with a roughly…

A: Given:

Q: How many galaxies are there in the universe?

A: A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and…

Q: True or False: Dwarf elliptical galaxies and giant ellipticals probably formed in entirely different…

A: To find true or false: Dwarf elliptical galaxies and giant ellipticals probably formed in entirely…

Q: An astronomer observed the motions of some galaxies. Based on his observations, he made the…

Q: The universe is filled with thermal radiation, which has a blackbody spectrum at an effective…

A: According to Wein's Displacement Law,The wavelength of the black body radiation with different peak…

Q: Describe the age and temperature of stars that make up spiral galaxies and their location.

A: A galaxy can be bombarded by other, smaller galaxies. Even if a galaxy is isolated, internal…

Q: Quasars are among the most distant objects in the universe and are moving away from us at very high…

A: Doppler Effect refers to the change in wave frequency during the relative motion between a wave…

Q: Galaxy B moves away from galaxy A at 0.501 times the speed of light. Galaxy C moves away from galaxy…

Q: Through the use of various measurement techniques, it has been found that most galaxies are rapidly…

A: Through the use of various measurement techniques, it has been found that most galaxies are rapidly…

Q: The famous debate where one person argued that faint objects were part of our system and the other…

A: The famous debate also called as the Shapley-Curtis debate. This debate was held on 26th April…

Q: Hubble's galaxy classification diagram (the "tuning fork"), suggests the existence of black holes…

A: Hubble's galaxy classification diagram (the "tuning fork")

Q: Astronomers are always seeking to build bigger, more powerful telescopes, which will allow them to…

A: Astronomers are always seeking to build bigger, more powerful telescopes, which will allow them to…

Q: When two galaxies collide, the stars inside them are not likely to be much affected, because the…

A: When two galaxies collide, the stars inside them are not likely to be much affected, because the…

Q: In a spiral galaxy, the orbital speeds of stars far from the galaxy's center distance from the…

A: Question: In a spiral galaxy, the orbital speeds of stars far from the galaxy's center _______ as…

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

Concept explainers

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.

Question

Joaquin tells his science class that galaxies consist of gas, dust, and many planets. What is the most important component of galaxies Joaquin is missing in his description

Expert Solution

Step 1

Galaxies consist of gas, dust, constellations, stars, comets and many planets.

Some examples of galaxy are:

Milky way
Andromeda
LMC
Cigar
Whirlpool

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

Based on your analysis of galaxies in Table 26.1, is there a correlation between the population of stars and the quantity of gas or dust? Explain why this might be.
How many galaxies like our own would it take if they were placed edge-to-edge to reach the nearest galaxy? (Hint: See Problems 11 and 12.)
The nearest neutron star (a collated star made primarily of neutrons) is about 3.00 1018 m away from Earth. Given that the Milky Way galaxy (Fig. P1.81) is roughly a disk of diameter 1021 m and thickness 1019 m, estimate the number of neutron stars in the Milky Way to the nearest order of magnitude. Figure P1.81
The best evidence for a black hole at the center of the Galaxy also comes from the application of Kepler’s third law. Suppose a star at a distance of 20 light-hours from the center of the Galaxy has an orbital speed of 6200 km/s. How much mass must be located inside its orbit?
The first clue that the Galaxy contains a lot of dark matter was the observation that the orbital velocities of stars did not decreases with increasing distance from the center of the Galaxy. Construct a rotation curve for the solar system by using the orbital velocities of the planets, which can be found in Appendix F. How does this curve differ from the rotation curve for the Galaxy? What does it tell you about where most of the mass in the solar system is concentrated?
The dwarf galaxy in Sagittarius is the one closest to the Milky Way, yet it was discovered only in 1994. Can you think of a reason it was not discovered earlier? (Hint: Think about what else is in its constellation.)
Describe the main distinguishing features of spiral, elliptical, and irregular galaxies.
Most distances in the Galaxy are measured in light-years instead of meters. Why do you think this is the case?
Starting with the determination of the size of Earth, outline a sequence of steps necessary to obtain the distance to a remote cluster of galaxies. (Hint: Review the chapter on Celestial Distances.)
When comparing two isolated spiral galaxies that have the same apparent brightness, but rotate at different rates, what can you say about their relative luminosity?
Assume that the Sun orbits the center of the Galaxy at a speed of 220 km/s and a distance of 26,000 lightyears from the center. A. Calculate the circumference of the Sun’s orbit, assuming it to be approximately circular. (Remember that the circumference of a circle is given by 2pR, where R is the radius of the circle. Be sure to use consistent units. The conversion from light-years to km/s can be found in an online calculator or appendix, or you can calculate it for yourself: the speed of light is 300,000 km/s, and you can determine the number of seconds in a year.) B. Calculate the Sun’s period, the “galactic year.” Again, be careful with the units. Does it agree with the number we gave above?
Astronomers recently claimed to have discovered the most distant galaxy known. How would they have determine this distance?