The weight of a star is usually balanced by two forces: the gravitational force, acting inward, and the force created by nuclear reaction, acting outward. Over a long period of time, the force due to nuclear reactions gets weaker, causing the gravitational collapse of the star and crushing atoms out of existence. Under such extreme conditions, protons and electrons are squeezed to form neutrons, giving birth to a neutron star. Neutron stars are massively heavy - a teaspoon of the substance of a neutron star would weigh 100 million metric tons on the Earth. a) Consider a neutron star whose mass is twice the mass of the Sun and whose radius is 13.3 km. (The mass of the Sun is 1.99-1030 kg.) If it rotates with a period of 2.57 s, what is the speed of a point on the Equator of this star? Submit Answer Tries 0/99 b) What is the value of g at the surface of this star? Submit Answer Tries 0/99 c) Compare the weight of a 1.30-kg mass on the Earth with its weight on the neutron star. How many times bigger is this mass on the neutron star than or Earth? Submit Answer Tries 0/99 d) If a satellite is to circle 13.3 km above the surface of such a neutron star, how many revolutions per minute will make? Do not enter unit. Submit Answer Tries 0/99 e) What is the radius of the geostationary orbit for this neutron star?
The weight of a star is usually balanced by two forces: the gravitational force, acting inward, and the force created by nuclear reaction, acting outward. Over a long period of time, the force due to nuclear reactions gets weaker, causing the gravitational collapse of the star and crushing atoms out of existence. Under such extreme conditions, protons and electrons are squeezed to form neutrons, giving birth to a neutron star. Neutron stars are massively heavy - a teaspoon of the substance of a neutron star would weigh 100 million metric tons on the Earth. a) Consider a neutron star whose mass is twice the mass of the Sun and whose radius is 13.3 km. (The mass of the Sun is 1.99-1030 kg.) If it rotates with a period of 2.57 s, what is the speed of a point on the Equator of this star? Submit Answer Tries 0/99 b) What is the value of g at the surface of this star? Submit Answer Tries 0/99 c) Compare the weight of a 1.30-kg mass on the Earth with its weight on the neutron star. How many times bigger is this mass on the neutron star than or Earth? Submit Answer Tries 0/99 d) If a satellite is to circle 13.3 km above the surface of such a neutron star, how many revolutions per minute will make? Do not enter unit. Submit Answer Tries 0/99 e) What is the radius of the geostationary orbit for this neutron star?
Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Chapter2: Matter And Energy
Section: Chapter Questions
Problem 10RQ: Why does an object weigh less on the moon than on earth?
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Transcribed Image Text:The weight of a star is usually balanced by two forces: the gravitational force, acting inward, and the force created by nuclear reaction, acting outward.
Over a long period of time, the force due to nuclear reactions gets weaker, causing the gravitational collapse of the star and crushing atoms out of
existence. Under such extreme conditions, protons and electrons are squeezed to form neutrons, giving birth to a neutron star. Neutron stars are massively
heavy - a teaspoon of the substance of a neutron star would weigh 100 million metric tons on the Earth.
a) Consider a neutron star whose mass is twice the mass of the Sun and whose radius is 13.3 km. (The mass of the Sun is 1.99-1030 kg.) If it rotates with
a period of 2.57 s, what is the speed of a point on the Equator of this star?
Submit Answer Tries 0/99
b) What is the value of g at the surface of this star?
Submit Answer Tries 0/99
c) Compare the weight of a 1.30-kg mass on the Earth with its weight on the neutron star. How many times bigger is this mass on the neutron star than on
Earth?
Submit Answer Tries 0/99
d) If a satellite is to circle 13.3 km above the surface of such a neutron star, how many revolutions per minute will it make? Do not enter unit.
Submit Answer Tries 0/99
e) What is the radius of the geostationary orbit for this neutron star?
Submit Answer Tries 0/99
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