A star rotates with a period of 30 days about an axis through its center. The period is the time interval required for a point on the star's equator to make one complete revolution around the axis of rotation. After the star undergoes a supernova explosion, the stellar core, which had a radius of 1.0 x 104 km, collapses into a neutron star of radius 3.0 km. Determine the period of rotation of the neutron star.
Q: a. When very massive stars die (stars at least 10 times larger than our sun) they undergo a…
A:
Q: ole at which the escape speed is the speed of light, 3.00 × 108^8 m/sm/s, making all escape…
A: Given:- A black hole with a mass 7.5 times the mass of the sun. Nothing can escape the event…
Q: A pulsar may form when a star of medium mass dies. On July 4, 1054 CE, Chinese astronomers witnessed…
A:
Q: Calculate Earth's mass given the acceleration due to gravity at the North Pole is 9.830 m/s² and the…
A: Given Data: Acceleration due to gravity at the North Pole gn=9.830 ms2 The radius of the earth at…
Q: The earth's radius is 6.37×106m6.37×106m; it rotates once every 24 hours. What is the speed of a…
A:
Q: Consider a neutron star with a mass equal to the sun, a radius of 18 km, and a rotation period of…
A: Given: M=Ms=1.99*1030 kgR=18 km=18000 mperiod T = 1.0s
Q: A very massive star with an M mass has a geometric shape of a sphere hollow, where the mass is…
A:
Q: 1. The Soyuz are a Russian spacecraft used to take astronauts to the International Space Station…
A:
Q: The earth does not have a uniform mass distribution. The core of the earth has a radius of 3490 km…
A: The expression for the gravitational acceleration can be given by, where, G is the gravitational…
Q: It is believed that there is a black hole with a mass of approximately four million times the mass…
A:
Q: While looking through the Mt. Palomar telescope, you discover a large planetary object orbited by a…
A:
Q: Pulsars. When a star with a mass at least ten times that of the Sun explodes outward in a supernova,…
A: Given that:a) Time of separation of the pulses: t=1.3373 secb) Fastest angular speed, ωmax=716…
Q: Plaskett's binary system consists of two stars that revolve in a circular orbit about a center of…
A:
Q: Plaskett's binary (also known as HD 47129) in the constellation Monoceros is a star system of two…
A: Given: Orbital speed of the stars = 250 km/sec = 250,000 m/s Period of the star = 14.4 days Suppose…
Q: A star has a mass of 1.5 x 10^30 kg and is moving in a circular orbit about the center of its…
A:
Q: You are riding your bike, which has 62.8 centimeter-diameter wheels, when you get a pebble stuck in…
A: Diameter=62.8 cmTo determine: Number of times the pebble make orbit
Q: Around 2.5 centuries ago, several physicists of the time came up with the notion of a dark star.…
A: Escape velocity is the minimum velocity required for an object to escape from the gravitational…
Q: A planet has a mass of 5.98 x 10²4 kg. It has an average orbital speed of 2.978 x 104 m/s as it…
A:
Q: M XCM M A binary system is shown by the image above. It consists of two stars of equal mass. These…
A: This problem can be solved using the concept of reduced mass.
Q: The star Sirus A has a mass of 2.06 MO and a radius of 1.71 RO, where M0 is the mass of the Sun…
A:
Q: A star has a mass of 1.87 x 1030 kg and is moving in a circular orbit about the center of its…
A: mass of star (m) = 1.87×1030 kg radius of orbit (R) = 2.3×104 light years = 2.3×104×9.5×1015 m =…
Q: 6. Three uniform spheres of W masses in 4.00 kg. and m = 6,00 kg are placed at the corners of a…
A:
Q: Answer the question in full details, thank you very much, Answer on the correct significant figures:…
A:
Q: A star with mass m = 2.624 x 1030 kg revolves around the center of mass of the Milky Way galaxy in…
A: Given, Radius of orbit is 3.7*1020 meter and velocity is 400,000 m/s
Q: AU is a unit of distance. If the orbital speed of Earth at aphelion is v, what is the orbital speed…
A: Angular momentum of earth about sun is conserved which means that at any point in the path of earth…
Q: The diagram represents a space station shaped like a wheel and having a radius of 40. meters. The…
A: Using the Newton’s law
Q: Assume the Earth is a uniform sphere with constant density. Let R represent the radius of the Earth…
A:
Q: A star orbits a black hole in a circular orbit at a distance of 3.9x1012 meters and a period of 4…
A:
Q: A star rotates in a circular orbit about the center of its galaxy. The radius of the orbit is 2.9 x…
A:
Q: A spacecraft in the shape of a long cylinder has a length of 100 m, and its mass with occupants is 1…
A: Given, Length of cylinder = 100 m Its mass with occupants is 1050 kg The distance between the nose…
Q: A. Use the definition of the center of mass to determine the maximum “wobble” velocity of a star of…
A:
Q: A star in the shape of a sphere has a uniform density ρ. What is the smallest orbital period of an…
A: Given data The uniform density is given as ρ. The mathematical expression of the centripetal force…
Q: Calculate the dark star radius from the mass of the star and the escape speed. Answer in…
A: Mass , M = 2.4*1030 kg To find = radius
Q: Nothing can escape the event horizon of a black hole, not even light. You can think of the event…
A: To determine Schwarzschild radius for a black hole with a mass 7.5 times the mass of the sun.
Q: A simple pendulum consists of a pendulum bob of mass M at the end of a "mass-less" string of length…
A: Given: The free-body diagram of the given system is:
Q: A star has a mass of 1.03 x 1030 kg and is moving in a circular orbit about the center of its…
A:
Q: The figure below shows a spherical hollow inside a lead sphere of radius R = 4.00 cm. The surface of…
A:
Q: Nothing can escape the event horizon of a black hole, not even light. You can think of the event…
A: Schwarzschild radius, also known as gravitational radius, the radius beneath which the gravitational…
Q: Suppose we represent an ordinary star as a uniform solid rigid sphere. The star’s initial radius is…
A: Given: R1=644000 kmR2=18.3 kmT1=30 daysT2=?
A star rotates with a period of 30 days about an axis through its center. The period is the time interval required for a point on the star's equator to make one complete revolution around the axis of rotation. After the star undergoes a supernova explosion, the stellar core, which had a radius of 1.0 x 104 km, collapses into a neutron star of radius 3.0 km. Determine the period of rotation of the neutron star.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
- A non-rotating black hole has an ‘edge’ at what’s called it’s Schwartzschildradius. For a black hole of mass M, the Schwartzschild radius isRSch = 2GM/(c^2) where G is the gravitational constant and c is the speed of light. Close to black holes, we really should use Einstein’s theory of gravity (General Relativity) instead of Newton’s, but Newton’s is still a good approximation.Using Newtonian Gravity, find the gravitational force on a mass m at theSchwartzschild radius of a black hole. (Your answer for this should look likeFgrav = an expression in terms of G, M, m, c and numbers.) Is the forcesmaller or larger for a more massive black hole?Around 2.5 centuries ago, several physicists of the time came up with the notion of a dark star. This was a star so dense, with so much gravity, that not even light could escape. The calculations used Newtonian mechanics. In class, we calculated the escape speed from the surface of the earth or the distance from the sun, and the mass of the planet or star. Here, the process is partially reversed. Calculate the dark star radius from the mass of the star and the escape speed. Answer in kilometers. c = 3*108 m/s M = 3.2*1030 kg G = 2/3 * 10-10 N*m2/kg2A star has a mass of 2.62 x 10³0 kg and is moving in a circular orbit about the center of its galaxy. The radius of the orbit is 3.0 x 104 light-years (1 light-year = 9.5 x 1015 m), and the angular speed of the star is 1.6 x 10-15 rad/s. (a) Determine the tangential speed of the star. (b) What is the magnitude of the net force that acts on the star to keep it moving around the center of the galaxy? (a) Number i (b) Number i Units Units
- 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 years. Planetesimals in the outer primordial solar system 4.5 billion years ago coalesced into Neptune over hundreds of millions of years. If the primordial disk that evolved into our present day solar system had a radius of 10¹1 km and if the matter that made up these planetesimals that later became Neptune was spread out evenly on the edges of it, what was the orbital period of the outer edges of the primordial disk? Express your answer rounded to the nearest year, and be sure not to do any rounding before expressing your final answer. P = yearsPlaskett's binary system consists of two stars that revolve in a circular orbit about a center of mass midway between them. This statement implies that the masses of the two stars are equal (see figure below). Assume the orbital speed of each star is V = 240 km/s and the orbital period of each is 12.1 days. Find the mass M of each star. (For comparison, the mass of our Sun is 1.99 x 1030 kg.) solar masses XCM MA neutron star is an astrophysical object having a mass of roughly 2.8 × 1030 kg (about 1.4 times the mass of the sun) but a radius of only about 12 km. If you were in a circular orbit of radius 320 km (about 200 mi), how long would it take you to go once around the star? It would take about _______ s to go once around the star.
- Black holes are difficult to observewith telescopes because they, bydefinition, don’t emit or reflect any light. They can be found by look-ing for other nearby objects orbit-ing them, however. Here is a dia-gram of a star in a circular orbit around a black hole. a. The period of the star’s orbit is 90 days, and its orbital radius around the black hole isobserved to be 3.6 : ×10^11 m. Find the orbital velocity of the star in units of m/s. (You need to convert 90 days to seconds, first). The circumference of a circle is 2πr. b. The mass of the star is known to be 4 × 10^30 kg. Find the centripetal acceleration of thestar and the strength of the gravitational force on the star. c. Find the mass of the black hole.The evolution of a star depends on its size. If a star is sufficiently large, the gravity forces holding it together may be large enough to collapse it into a very dense object composed mostly of neutrons. The density of such a neutron star is about 1014 times that of the Earth. Suppose that a star initially had a radius of 7 x 108 km, and it rotated once every 26 days. What would be the period of rotation if the star collapsed to a radius of 15 km? (1.19 x 10-14 days)A star has a mass of 2.42 x 1030 kg and is moving in a circular orbit about the center of its galaxy. The radius of the orbit is 1.5 x 104 light-years (1 light-year = 9.5 x 1015 m), and the angular speed of the star is 1.8 x 10-15 rad/s. (a) Determine the tangential speed of the star. (b) What is the magnitude of the net force that acts on the star to keep it moving around the center of the galaxy?
- A star has a mass of 1.03 x 1030 kg and is moving in a circular orbit about the center of its galaxy. The radius of the orbit is 2.4 x 104 light-years (1 light-year = 9.5 x 1015 m), and the angular speed of the star is 1.0 x 10-15 rad/s. (a) Determine the tangential speed of the star. (b) What is the magnitude of the net force that acts on the star to keep it moving around the center of the galaxy?Plaskett's binary system consists of two stars that revolve in a circular orbit about a center of mass midway between them. This statement implies that the masses of the two stars are equal (see figure below). Assume the orbital speed of each star is V = 210 km/s and the orbital period of each is 11.5 days. Find the mass M of each star. (For comparison, the mass of our Sun is 1.99 x 1030 kg.) solar masses M XCM MA super massive black hole has a mass of 1.9 x 1039kg and a radius of 3 x 1012m. How fast must a rocket travel to escape from the black hole? Conservation of energy.