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In this lesson, we will learn how to determine the compositional and kinematic properties of neutron stars.

Q1:

Which of the following statements is the correct definition of a pulsar?

Q2:

A neutron star has a radius of 10.0 km and a mass of 2.40šā. What is the average density of the neutron star? Use a value of 1.99Ć10ļ©ļ¦kg for the mass of the Sun. Give your answer to 3 significant figures.

Q3:

A neutron star has a mass of 1.81šā. Assuming that Newtonian gravity applies, at what radius from the neutron star would the acceleration due to gravity from the star be equal to that on the surface of Earth? Use a value of 1.99Ć10ļ©ļ¦ kg for the mass of the Sun, 6.67Ć10ļ±ļ§ļ§ m^{3}/kgā s^{2} for the universal gravitational constant, and 1.50Ć10ļ§ļ§ m for the length of 1 AU. Give your answer in astronomical units to 3 significant figures.

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