1. If the accretion disk around a neutron star has a radius of 2 × 10 5 km, what is the orbital… 1 answer below »

1. If the accretion disk around a neutron star has a radius of 2 × 105 km, what is the orbital velocity of a particle at its outer edge? (Hint: Use the formula for circular orbit velocity, Chapter 4.) 2. What is the escape velocity at the surface of a typical neutron star? (Hints: The formula for circular orbit velocity is in Chapter 4; escape velocity equals circular orbital velocity times the square root of 2, which is about 1.41.)  

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