Question

A star with an initial radius of 1.0 x 108 m and a period of 30.0...

A star with an initial radius of 1.0 x 108 m and a period of 30.0 Earth days collapses suddenly to a radius of 1.0 x 104 m, while keeping essentially the same mass. This collapsed star is probably a neutron star.

(a) What will be the angular velocity of the neutron star in rad/s and rot/s?

(b) What will be the speed, in m/s of an indestructible person standing on the equator of the neutron star?

(c) What per cent of the speed of light will the person be traveling on the neutron star?

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A star with an initial radius of 1.0 x 108 m and a period of 30.0...
A star with an initial radius of 1.0 x 108 m and a period of 30.0 Earth days collapses suddenly to a radius of 1.0 x 104 m, while keeping essentially the same mass. This collapsed star is probably a neutron star. What will be the angular velocity of the neutron star in rad/s and rot/s? What will be the speed, in m/s of an indestructible person standing on the equator of the neutron star? What per cent of the...
A certain star of radius 6.34 million meters, rotates twice around its axis in one earth...
A certain star of radius 6.34 million meters, rotates twice around its axis in one earth day. Find its angular frequency. This star has a mass of 1.00x1032 kg. When this star collapses to a neutron star, its radius shrinks by a factor of 104 while it loses 30% of its mass. Find the angular velocity of this star after the collapse. Assume that the spherical shape and density of the star remain unchanged . Find the speed and centripetal...
Suppose a star with the Sun’s mass and radius (the radius of the Sun is 6.96×108...
Suppose a star with the Sun’s mass and radius (the radius of the Sun is 6.96×108 m) is rotating with a period of 25 days. The star first blows off its outer layers and loses mass and angular momentum before the actual collapse, thereby reducing its radius while maintaining the same density. Then, with a mass that is 59 % of the Sun’s mass, it collapses to a white dwarf with a rotation period is 131 s. A) What is...
Calculate the density of a neutron star with a radius 1.7 x 104 m, assuming the...
Calculate the density of a neutron star with a radius 1.7 x 104 m, assuming the mass is distributed uniformly. Treat the neutron star as a giant nucleus and consider the mass of a nucleon 1.675 x 10-27 kg. Your answer should be in the form of N x 1017 kg/m3. Enter only the number N with two decimal places, do not enter unit.
A star rotates in a circular orbit about the center of its galaxy. The radius of...
A star rotates in a circular orbit about the center of its galaxy. The radius of the orbit is 1.3 x 1020 m, and the angular speed of the star is 4.2 x 10-15 rad/s. How long (in years) does it take for the star to make one revolution around the center?
A wheel of radius 1.0 m is rotating with a constant angular speed of 2.0 rad/s....
A wheel of radius 1.0 m is rotating with a constant angular speed of 2.0 rad/s. How long will take the wheel to make 20 rotations?
A flat uniform circular disk (radius = 3.00 m, mass = 1.00 ✕ 102 kg) is...
A flat uniform circular disk (radius = 3.00 m, mass = 1.00 ✕ 102 kg) is initially stationary. The disk is free to rotate in the horizontal plane about a frictionless axis perpendicular to the center of the disk. A 50.0 kg person, standing 1.75 m from the axis, begins to run on the disk in a circular path and has a tangential speed of 2.60 m/s relative to the ground. Find the resulting angular speed of the disk (in...
A flat uniform circular disk (radius = 5.44 m, mass = 320 kg) is initially stationary....
A flat uniform circular disk (radius = 5.44 m, mass = 320 kg) is initially stationary. The disk is free to rotate in the horizontal plane about a frictionless axis perpendicular to the center of the disk. A 66.4-kg person, standing 2.40 m from the axis, begins to run on the disk in a circular path and has a tangential speed of 2.97 m/s relative to the ground. Find the magnitude of the resulting angular speed (in rad/s) of the...
A 5.0-m radius playground merry-go-round with a moment of inertia of 2000 kg?m2 is rotating freely...
A 5.0-m radius playground merry-go-round with a moment of inertia of 2000 kg?m2 is rotating freely with an angular speed of 3.0 rad/s. Two people, each having a mass of 60 kg are standing right outside the edge of the merry-go-round. One person radially steps on the edge merry-go-round with negligible speed and the angular speed changes to ?1. A few seconds later, the second person radially steps on the merry-go-round with negligible speed but at distance of 4.0 m...
A 5.0-m radius playground merry-go-round with a moment of inertia of 2000 kg?m2 is rotating freely...
A 5.0-m radius playground merry-go-round with a moment of inertia of 2000 kg?m2 is rotating freely with an angular speed of 3.0 rad/s. Two people, each having a mass of 60 kg are standing right outside the edge of the merry-go-round. One person radially steps on the edge merry-go-round with negligible speed and the angular speed changes to ?1. A few seconds later, the second person radially steps on the merry-go-round with negligible speed but at distance of 4.0 m...