When two galaxies collide, the stars inside them are not likely to be much affected, because the __________ stars is so large compared to their diameters. However, the _______ of stars and gas can be changed, altering the appearance of the galaxies. Astronomers have determined that such collisions are seen more often in ____________. When two galaxies of roughly equal size collide, astronomers call it a _______ of galaxies; but when a small galaxy collides with a much larger one, the process is called ___________. When a galaxy has a significant amount of its interstellar gas compressed by a collision, leading to the birth of many new stars, astronomers call it a __________ galaxy.

Q: 1- As the universe expands, a galaxy which is at a distance of  5.0 x 106 pc, is moving away from…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: Determine the coordinates of the hole, if any.

A: The rational function is, R(x)=x-4x-2x+3x-4   thus, the common factor is x-4, thus the x co-ordinate…

Q: Problem 3: Two stars, M and N, from the same galaxy (at the same distance from earth) are observed…

A: The both stars emit same amount of energy per unit time.  Luminosity is given as  L=4πR2σT4, where R…

Q: It can be shown that if an object orbiting a star of mass M in a circular orbit of radius R has…

A:

Q: The most mass of our Milky Way is contained in an inner region close to the core with radius Ro.…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: Two galaxies are moving away from each other at 8000 km/sec and are 4x103 light-years apart. It was…

A: The speed or velocity of an object is defined as the ratio between the distance traveled by an…

Q: Distances to local galaxies are determined by measuring the brightness of stars, called Cepheid…

A: Absolute brightness is a constant and is 10 parsecs from Earth whereas measured brightness depends…

Q: The most mass of our Milky Way is contained in an inner region close to the core with radius Ro.…

A:

Q: The most mass of our Milky Way is contained in an inner region close to the core with radius Ro.…

A: Given, The radius of the inner region close to the core =  R0 As we know that, ρ(r)={ρ0,r≤R0…

Q: The nuclei of some galaxics are thought to contain supermassive black holes with M = 3 x 10°M9. How…

A: The Schwarzschild radius of a supermassive black hole can be estimated using an empirical…

Q: The most mass of our Milky Way is contained in an inner region close to the core with radius Ro.…

A:

Q: The most mass of our Milky Way is contained in an inner region close to the core with radius Ro.…

A:

Q: Problem 5: L. Bone SENS Muscle 100° 30 cm 4 cm 40 cm Fm W A simplified model of a human arm holding…

A: Given:length of the forearm; l = 40cm = 0.4 mmass og the fore arm, m = 1.7 kgtherefore weight of the…

Q: Edwin Hubble established the existence of separate, distant galaxies when he found __________ stars…

A:

Q: What is the radius of gyration of a thin disc of radius 4 cm about a diameter?

A: Radius of thin disc is r=4 cm

Q: The most mass of our Milky Way is contained in an inner region close to the core with radius Ro.…

A:

Q: (a) Estimate the height (z) above or below the Galactic plane for the globular cluster M13 (1,b =…

A: The galactic plane is the plane on which the majority of a disk-shaped galaxy's mass lies. Distance…

Q: All Radio Galaxies have the following number of plasma jets and lobes a) 2  b) 5  c) 1  d) 4…

A: Radio galaxies have two plasma jets and lobes.

Q: Joaquin tells his science class that galaxies consist of gas, dust, and many planets. What is the…

A: Galaxies consist of gas, dust, constellations, stars, comets and many planets. Some examples of…

Q: Distances to very remote galaxies are estimated based on their apparent type, which indicate the…

A: The relation of brightens of the star is inversely proportional to the square root of the distance…

Q: The most mass of our Milky Way is contained in an inner region close to the core with radius Ro-…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: Where did this equation come from?

A: The equation you provided is derived from the physics of standing waves, which occur when two waves…

Q: For a circular velocity profile of the type (r) = ar¹/9, where a is a constant and r is the radial…

A: Step 1: Step 2: Step 3: Step 4:

Q: A galaxy with a spherically symmetric distribution of matter has a mass density profile of the type…

A:

Q: Observations of quasars have shown us that many are extremely _________, emitting more energy than…

A: Required : Fill in the gaps.

Q: solved

A: Given that the sphere has a uniform polarization  P=P0 hat z, we can write the electric polarization…

Q: On average, how far away are galaxies that are moving away from us at 2.0% of the speed of light?

A:

Q: The density profile of a galaxy's extended dark matter halo is given in the provided image. r0 and…

A:

Q: The orbital speed of a star about the center of the Milky Way is determined by its distance from the…

A: The galactic center is orbited by the Sun. Therefore, if we are able to calculate the Sun's speed…

Q: A galaxy is found to be receding at a velocity of 3.0 x 104 km-s-1. Calculate the distance to the…

A: Edwin Hubble discovered through observation that the Universe is expanding. Galaxies are moving away…

Q: In the deep space between galaxies, the number density of atoms is as low as 106 atoms/m3 and the…

A: Given Data : The density of the atoms in the space between the galaxies is ρ=NV=106 atomsm3 Here N…

Q: The most mass of our Milky Way is contained in an inner region close to the core with radius Ro.…

A: As per guidelines, the first three sub-parts have been answered.

Q: Calculate the Schwarzschild radius for the sun and Earth.

A: Every object has a radius within which the gravitational force is so large that it prevents matter…

Q: A black hole (m = 2.90 x 10^9 Ms) sits in the middle of the M87 galaxy. Calculate its gravitational…

A: mass of black hole = 2.90×109 MsMs = 1.99×1030 kg

Q: In 1987, a supernova was observed in a neighboring galaxy.Scientists believed the galaxy was 1.66 x…

A:

Q: star is 1.0 x 104 ly (light-years) from the center of its galaxy and is moving in a circle around…

A: Given : r = 1 × 104 ly = (1 × 104)(9.46 × 1012) = 9.46 × 1016 km v = 110 km/s t = 5.6 x 109 years =…

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

A:

Q: The most mass of our Milky Way is contained in an inner region close to the core with radius Ro-…

A:

Q: The most mass of our Milky Way is contained in an inner region close to the core with radius Ro.…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: Which of these expressions is used to obtain an eigenvalue of a dynamical variable or an observable…

A: From the given question, we have to find the expression used to obtain an eigenvalue of a dynamical…

Q: The most mass of our Milky Way is contained in an inner region close to the core with radius Ro.…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: The most mass of our Milky Way is contained in an inner region close to the core with radius Ro-…

A:

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.