Under some circumstances, a star can collapse into an extremely dense object made mostly of neutrons and called a neutron star. The density of a neutron star is roughly 10¹4 times as great as that of ordinary solid matter. Suppose we represent the star as a uniform solid, rigid sphere, both before and after the collapse. The star's initial radius was 7.0x105 km (comparable to our sun); its final radius is 18 km.

Under some circumstances, a star can collapse into an extremely dense object made mostly of neutrons and called a neutron star. The density of a neutron star is roughly 10¹4 times as great as that of ordinary solid matter. Suppose we represent the star as a uniform solid, rigid sphere, both before and after the collapse. The star's initial radius was 7.0x105 km (comparable to our sun); its final radius is 18 km.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter13: Gravitation

Section: Chapter Questions

Problem 59AP: A neutron star is a cold, collapsed star with nuclear density. A particular neutron star has a mass...

See similar textbooks

Related questions

Q: A spherical planet has an outer radius R; its density p varies as a function of distance r given by…

A: Given data: The density function is, ρr=3-2r2R2.

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

Q: A pulsar may form when a star of medium mass dies. On July 4, 1054 CE, Chinese astronomers witnessed…

Q: Consider a solid sphere (e.g., a planet) with mass M and radius R. The volume mass density for this…

A: Given density of solid sphere with mass M and Radius R To determine value of constant A we need to…

Q: A brown dwarf star has 5 times the mass of the Sun packed into a sphere of diameter of 20 km.…

Q: Jupiter's moon Io has active volcanoes (in fact, it is the most volcanically active body in the…

Q: C6M.9 Astar with mass M and radius R collides with another star of massM and radius R, and coalesce…

A: Given information:Mass of star “A” (Ma) = MRadius of star A (Ra) = RAngular velocity of star A =…

Q: Imagine a particular exoplanet covered in an ocean of liquid ethane. At the surface of the ocean,…

A: Atmospheric pressure = 9.00 ✕ 104 Pa force on a disk-shaped region 2.00 m in radius at the surface…

Q: The escape speed from a planet X is 165 m/s. Calculate the density of the planet if the diameter of…

A: The expression for the planet’s escape velocity is,

Q: Calculate the magnitude of the gravitational attråct between the particle and Neptune to three…

A: Gravitational force between two masses F = Gm₁m₂/r²

Q: Answer the question in full details, thank you very much, Answer on the correct significant figures:…

Q: A typical neutron star may have a mass equal to that of the Sun (m = 1.99x1030kg) but a radius of…

A: Given: The mass of sun is m=1.99 x1030 kg. The radius is R=10 km. The distance of object on star is…

Q: The mass of a star is 1.99·1031 kg and its angular velocity is 1.60E-7 rad/s. Find its new angular…

A: Given data: The mass of the star is m=1.99x1031 kg. The initial angular velocity of the star is…

Q: The mass of the sun is 2.0 x 1030 kg, and the mass of a hydrogen atom is 1.67 x 10-27 kg. If we…

A: Given data: Mass of the Sun = 2.0×1030 kg Mass of one hydrogen atom = 1.67×10-27 kg Required: The…

Q: NOTE: Your answer suggests that you have assumed constant gravitational

A: Explained as, F=-GMMR+y2

Q: Imagine a particular exoplanet covered in an ocean of liquid ethane. At the surface of the ocean,…

Q: mordial solar system 4.5 billion years ago coalesced into Neptune over hundreds of millions of…

A: Answer :- The expression of conservation of angular momentum is, Here and are the initial moment…

Q: Imagine a particular exoplanet covered in an ocean of liquid ethane. At the surface of the ocean,…

Q: At the surface of a red giant star, the gravitational force on 1 kg is only 2.2 x 10-3 N. If its…

Q: An astronaut lands on a new, recently discovered planet in a different star system. The astronaut…

A: Given, Mass of planet,M=7.5×1023kg Acceleration due to gravity,g=12 m/s2

Q: Neptune has a mass of 1.0 × 1026 kg and is 4.5 × 109 km from the Sun with an orbital period of 177.5…

A: Given that, the mass of Neptune is m=1×1026kg the radius of the path is R=4.5×109km And the time…

Q: Jupiter's moon Io has active volcanoes (in fact, it is the most volcanically active body in the…

A: Given: Mass of Io = m = 8.93 × 1022 kg Radius of Io = r = 1821 km Mass of earth = mE = 5.96×1024 kg…

Q: Suppose you could pack neutrons (mass = 1.67 × 10-27 kg) inside a small ball of radius 0.026 m in…

Q: A uniform, spherical cloud of interstellar gas has mass 1.8×1030 kg and radius 1.2×1013 m, and is…

Q: The distance between two stars of masses 3M, and 6M, is the centers of the Earth and the Sun, and M,…

Q: Neptune has a mass of 1.0 ✕ 1026 kg and is 4.5 ✕ 109 km from the Sun with an orbital period of 165…

A: Conservation of angular momentum is given by Iiωi=Ifωfmri22πTi=mrf22πTfTf=Tirfri2=165 years1011…

Q: The Sun’s mass is 2.0 × 1030 kg, its radius is 7.0 × 105 km, and it has a rotational period of…

A: According to the conservation of angular momentum, I1ω1=I2ω2⇒I12πT1=I22πT2⇒T2=T1I2I1Now,I1=mr12 and…

Q: A typical neutron star may have a mass equal to that of the Sun (m =1.99x10 30 kg) but a radius of…

A: a) Let the radius of the star be R and the mass of the star be m. In this case, R = 10×103 m m =…

Q: Neptune has a mass of 1.0 × 1026 kg and is 4.5 × 109 km from the Sun with an orbital period of 165…

A: Given: The mass of Neptune is M=1.0×1026 kg. The distance of Neptune from sun is Rf=4.5×109 km. The…

Concept explainers

Density of Solids

The density of a substance refers to how much matter is present in a given amount of space. It is expressed as the ratio of the mass of the substance to its volume.

Question

100%

Under some circumstances, a star can collapse into an extremely dense object made
mostly of neutrons and called a neutron star. The density of a neutron star is roughly 10¹4
times as great as that of ordinary solid matter. Suppose we represent the star as a uniform,
solid, rigid sphere, both before and after the collapse. The star's initial radius was 7.0×105
km (comparable to our sun); its final radius is 18 km.

Transcribed Image Text:If the original star rotated once in 35 days, find the angular speed of the neutron star.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

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

The planet Saturn has an average radius of 9 Earth radii and a density of 0.7 g/cm3 (yes, less dense than water!). How many Earth radii must a moon remain beyond the center of this giant planet, if the moon is made of water ice (0.9 g/cm3)? (i) How many Saturn radii does this equal?
Jupiter's moon Io has active volcanoes (in fact, it is the most volcanically active body in the solar system) that eject material as high as 500 km (or even higher) above the surface. Io has a mass of 8.93×1022kg8.93×1022kg and a radius of 1821 km. How high would this material go on earth if it were ejected with the same speed as on Io? (RE = 6370 km, mE=5.96×1024kg)
The planet Jupiter has a mass of 1.9 × 1027 kg and a radius of 72,000 km. The Earth, meanwhile, has a mass of 6.0 × 1024 kg and a radius of 6,400 km. What is the volume of Earth in m^3?
A spherical planet has an outer radius R; its density p varies as a function of distance r given by p(r) = 3 – 2(r²/R²) (so the density is 3 units at the centre, and 1 at the surface r = R). Calculate the mass of the planet.
Please asap
C6M.9 Astar with mass M and radius R collides with another star of massM and radius R, and coalesce to form a new star at rest whose radius is R. Assume that initially the colliding stars had angular velocities with opposite direc- tions but the same magnitude | What is the magnitude and direction of the final star's angular velocity? (Express the magnitude as a fraction of )
Suppose you could pack neutrons (mass = 1.67 × 10-27 kg) inside a small ball of radius 0.026 m in the same way as neutrons and protons are packed together in the nucleus of an atom. (a) Approximately how many neutrons would fit inside the ball? (b) A small object is placed 3.7 m from the center of the neutron-packed ball, and the ball exerts a gravitational force on it. When the object is released, what is the magnitude of the acceleration that it experiences? Ignore the gravitational force exerted on the object by the earth.
Jupiter's moon Io has active volcanoes (in fact, it is the most volcanically active body in the solar system) that eject material as high as 500 km (or even higher) above the surface. Io has a mass of 8.93×1022kg and a radius of 1821 km How high would this material go on earth if it were ejected with the same speed as on Io? (REarth = 6370 km, mEartg=5.96×1024kg) NOTE: Your answer suggests that you have assumed constant gravitational acceleration over the whole height of the ejected debris. Note that the gravitational field changes quite significantly over this height.
Can you please help w/ the question in the pic? This is the data I have so far: 1. Determine the mass M of the massive object at the center of the Milky Way galaxy. Take the distance of one light year to be 9.461x10^15: answer= 4.26*10^37 2.Express your answer in solar masses instead of kilograms, where one solar mass is equal to the mass of the sun, which is 1.99*10^30: answer=2.14*10^7 TIA
Jupiter's moon Io has active volcanoes (in fact, it is the most volcanically active body in the solar system) that eject material as high as 500 kmkm (or even higher) above the surface. Io has a mass of 8.93×10^22kg and a radius of 1821 km. How high would this material go on earth if it were ejected with the same speed as on Io? (RE = 6370 km, m_E=5.96×10^24kg) Express your answer with the appropriate units.
Consider a solid sphere (e.g., a planet) with mass M and radius R. The volume mass density for this planet is given by r2 p(r) = for rR where A is a constant with the units of kg/m'.
An astronaut lands on a new, recently discovered planet in a different star system. The astronaut measures the acceleration due to gravity on the planet to be 12m/s2, and the mass of the planet is measured to be 7.5E23kg. What is the radius of the new planet?