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Question 8 Hunting a black hole. Observations of the light from a certain star indicate that...
Hunting a black hole. Observations of the light from a certain star indicate that it is...
Hunting a black hole. Observations of the light from a
certain star indicate that it is part of a binary (two-star)
system. This visible star has orbital speed v = 270 km/s,
orbital period T = 21.5 days, and approximate mass
m1 = 5.3Ms, where
Ms is the Sun's mass, 1.99 x 1030
kg. Assume that the visible star and its companion star, which is
dark and unseen, are both in circular orbits (see the figure). Find
the ratio of...
Hunting a black hole. Observations of the light from a certain star indicate that it is...
Hunting a black hole. Observations of the light from a
certain star indicate that it is part of a binary (two-star)
system. This visible star has orbital speed v = 260 km/s,
orbital period T = 16.0 days, and approximate mass
m1 = 6.6Ms, where
Ms is the Sun's mass, 1.99 x 1030
kg. Assume that the visible star and its companion star, which is
dark and unseen, are both in circular orbits (see the figure). Find
the ratio of...
Hunting a black hole. Observations of the light from a certain star indicate that it is...
Hunting a black hole. Observations of the light from a
certain star indicate that it is part of a binary (two-star)
system. This visible star has orbital speed v = 280 km/s,
orbital period T = 14.4 days, and approximate mass
m1 = 6.1Ms, where
Ms is the Sun's mass, 1.99 x 1030
kg. Assume that the visible star and its companion star, which is
dark and unseen, are both in circular orbits (see the figure). Find
the ratio of...
It is said that at the center of every galaxy is a supermassive black hole (the...
It is said that at the center of every galaxy is a supermassive black hole (the picture below shows a picture towards the center of the Milky Way from the Keck Observatory). By observing the orbits of nearby stars, you can get a crude estimate of the mass of this black hole by assuming the stars have a circular orbit. Consider the star SO-2, which has an orbital period of 16.3 years. Its average distance from the black hole is...
choose correct answer. no explanation needed QUESTION 36 What does the apparent magnitude of a star...
choose correct answer. no explanation needed
QUESTION 36 What does the apparent magnitude of a star tell us about that star? its mass how bright it appears from Earth its radius how much energy it is emitting QUESTION 37 What is the reason sunspots appear darker than surrounding regions on the Sun's surface? They actually are fairly bright, but appear dark against the even brighter background of the surrounding photosphere. They are too cold to emit any visible light. They...
A star near the visible edge of a galaxy travels in a uniform circular orbit. It...
A star near the visible edge of a galaxy travels in a uniform circular orbit. It is 42,700 ly (light-years) from the galactic center and has a speed of 275 km/s. Estimate the total mass of the galaxy based on the motion of the star. Gravitational constant is 6.674×10−11 m3/(kg·s2) and mass of the Sun Ms=1.99 × 1030 kg. The total visible mass (i.e., matter we can detect via electromagnetic radiation) of the galaxy is 1011 solar masses. What fraction...
In a newly discovered exoplanetary system one planet orbits its star in 56 days with an...
In a newly discovered exoplanetary system one planet orbits its star in 56 days with an average orbital radius of 107,588,122 kilometers. It is observed that another planet in the same system has orbital period of 373 days. What is its average orbital radius of the second planet? Express your answer in kilometers, use scientific notation and round the coefficient to two decimals. In a newly discovered exoplanetary system one planet orbits its star in 57 days with an average...
Before leaving Alpha Centauri, you change from the shuttle to a light speed interstellar cruiser and head out deep into the galaxy to visit another binary star system - but this one is composed...
Before leaving Alpha Centauri, you change from the shuttle to a light speed interstellar cruiser and head out deep into the galaxy to visit another binary star system - but this one is composed of dead stars! To occupy your waking travel time by reading about this star system in the "Outer Space Tourbook": Stars spend most of their lifetimes undergoing nuclear fusion in their cores, which is why they give off so much light. However, when the material necessary...
1 Reaction C: Copper(II) Hydroxide to Copper(IT) Oxide Observations: The solntich goes from a light blue...
1 Reaction C: Copper(II) Hydroxide to Copper(IT) Oxide Observations: The solntich goes from a light blue to a dark blue. when heated the solution turns to a green/black color. Balanced Molecular Equation: Balanced Net lonie Equation: Reaction D: Copper(IT) Oxide to Copper(II) Sulfate Observations: "The back sond is dissolved in the acid. This creates a light blue / Clear solurich Balanced Molecular Equation: Balanced Net Ionic Equation: Reaction E: Copper(II) Sulfate to Copper Metal (and Dissolution of excess Mg) Observations:...
Hunting a black hole. Observations of the light from a
certain star indicate that it is part of a binary (two-star)
system. This visible star has orbital speed v = 270 km/s,
orbital period T = 21.5 days, and approximate mass
m1 = 5.3Ms, where
Ms is the Sun's mass, 1.99 x 1030
kg. Assume that the visible star and its companion star, which is
dark and unseen, are both in circular orbits (see the figure). Find
the ratio of...
Hunting a black hole. Observations of the light from a
certain star indicate that it is part of a binary (two-star)
system. This visible star has orbital speed v = 260 km/s,
orbital period T = 16.0 days, and approximate mass
m1 = 6.6Ms, where
Ms is the Sun's mass, 1.99 x 1030
kg. Assume that the visible star and its companion star, which is
dark and unseen, are both in circular orbits (see the figure). Find
the ratio of...
Hunting a black hole. Observations of the light from a
certain star indicate that it is part of a binary (two-star)
system. This visible star has orbital speed v = 280 km/s,
orbital period T = 14.4 days, and approximate mass
m1 = 6.1Ms, where
Ms is the Sun's mass, 1.99 x 1030
kg. Assume that the visible star and its companion star, which is
dark and unseen, are both in circular orbits (see the figure). Find
the ratio of...
It is said that at the center of every galaxy is a supermassive black hole (the picture below shows a picture towards the center of the Milky Way from the Keck Observatory). By observing the orbits of nearby stars, you can get a crude estimate of the mass of this black hole by assuming the stars have a circular orbit. Consider the star SO-2, which has an orbital period of 16.3 years. Its average distance from the black hole is...
choose correct answer. no explanation needed
QUESTION 36 What does the apparent magnitude of a star tell us about that star? its mass how bright it appears from Earth its radius how much energy it is emitting QUESTION 37 What is the reason sunspots appear darker than surrounding regions on the Sun's surface? They actually are fairly bright, but appear dark against the even brighter background of the surrounding photosphere. They are too cold to emit any visible light. They...
In a newly discovered exoplanetary system one planet orbits its star in 56 days with an average orbital radius of 107,588,122 kilometers. It is observed that another planet in the same system has orbital period of 373 days. What is its average orbital radius of the second planet? Express your answer in kilometers, use scientific notation and round the coefficient to two decimals. In a newly discovered exoplanetary system one planet orbits its star in 57 days with an average...
Before leaving Alpha Centauri, you change from the shuttle to a light speed interstellar cruiser and head out deep into the galaxy to visit another binary star system - but this one is composed of dead stars! To occupy your waking travel time by reading about this star system in the "Outer Space Tourbook": Stars spend most of their lifetimes undergoing nuclear fusion in their cores, which is why they give off so much light. However, when the material necessary...
1 Reaction C: Copper(II) Hydroxide to Copper(IT) Oxide Observations: The solntich goes from a light blue to a dark blue. when heated the solution turns to a green/black color. Balanced Molecular Equation: Balanced Net lonie Equation: Reaction D: Copper(IT) Oxide to Copper(II) Sulfate Observations: "The back sond is dissolved in the acid. This creates a light blue / Clear solurich Balanced Molecular Equation: Balanced Net Ionic Equation: Reaction E: Copper(II) Sulfate to Copper Metal (and Dissolution of excess Mg) Observations:...
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