Why do millisecond pulsars spin so fast?
Q: What is the acceleration of gravity at the surface if the white dwarf has 1.5 the mass of the sun…
A: Given, Mass of white dwarf, Mw=1.5×Ms=1.5×1.989×1030 kg=2.98×1030 kg, and the radius of the white…
Q: Astronomers discover a binary system with a period of 90 days. Both stars have a mass twice that of…
A: Mass of binary system is given by, M=4π2r3GT2 where, M is…
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: In this question we have to answer what would be the period of the Sun if it collapses into a white…
Q: A Spinning Star has a period of rotation of T. Over a period of a million years, its radius…
A: Write the expression for the initial period of the given star, and solve for its initial angular…
Q: If a pulsar’s period is 0.05 seconds, how many times does it spin in one day?
A: Given data, Time period of the pulsar = 0.05 seconds
Q: A 1.5 M neutron star and a 0.7 M white dwarf have been found orbiting each other with a period of 10…
A: The expression for the Kepler’s third law for binary stars is as follows: MA+MB=a3p2…
Q: what would its period (in s) be if no mass were ejected and a sphere of uniform density can model HD…
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Q: СМ m2 m 12
A: Given, r2 = 2r1 consider the center of of the system is at the origin. mass of binary star 1 is m1…
Q: The density of Sirius B is 2×106 g/cm3 and its mass is 1.95×1030 kg. What is the radius of the white…
A: The given data are: ρ=2×106 g/cm3=2×109 kg/m3m=1.95×1030 kg Here, ρ and m represent the density and…
Q: Given the density of a pulsar, an extremely dense rotating star made of neutrons, is about 1011…
A: The density of a material defines how closely spaced the material has been packed. If the material…
Q: How close, r, to the center of a neutron star would a manned satellite be orbiting if it were at the…
A: Gravitational force of earth’s surface = Gravitational force of star GMN mr2=mg r= G MNg
Q: An astronaut is in space at the midpoint between two stars of equal mass. Everything else is…
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Q: What is the orbital period of Proxima Centauri and alpha Centauri about each other if the alpha…
A: Kepler's law is used to describe planetary motion. Kepler's third law describes the…
Q: Which of the below rotation curves best represents the orbital speeds stars in the Milky Way Galaxy…
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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…
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Q: Radio telescopes are an essential tool for modern astrophysics. They played a crucial role in…
A: A pulsar is a compact star, including neutron star and white dwarfs, which is highly magnetized and…
Q: From this new rotation rate (0.175 RATE), the neutron star is slowed to a halt in 3 billion years.…
A: new rotation rate (0.175 RATE)
Q: The orbit of the binary pulsar PSR 1936+16, studied by Taylor and Hulse, a. is so small that the…
A: Pulsars are a kind of highly magnetized compact neutron rotating very dense stars having a short…
Q: Determine current, power and voltage drop on each resistors. 61 20 30 121
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Q: The tidal force is a differential force: dF/dr, which is the difference between the force at one…
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Q: stated to 2 decimal precision for the calculated magnitudes of proper motion. Using Equation 1.10,…
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Q: A binary pulsar orbits with radial velocity 0.00004 times the speed of light. If the difference…
A: Solution: As per the given data,
Q: the sun, which has a rotational period of 25 days, collapses from its current radius (700,000 km) to…
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Q: As shown in the figure below, a uniform beam is supported by a cable at one end and the force of…
A: Let the tention in the string be T. T will have two components, one upward (Tsinθ) and another…
Q: A gravitational dead zone is found between two hyper giant stars, HG A and HG B, 34 million km from…
A: At point X the gravitational intensities of A and B must be equal and opposite,
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