If the legendary apple of Newton could be released from rest at a height of 2.5 m from the surface of a neutron star with a mass 1.7 times that of our sun (whose mass is 1.99 x 1030 kg) and a radius of 19 km, what would be the apple's speed when it reached the surface of the star? (b) If the apple could rest on the surface of the star, what would be the difference between the gravitational acceleration at the top and at the bottom of the apple? Take the apple to be a sphere with a radius of 3.6 cm.

Principles of Physics: A Calculus-Based Text
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ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
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Chapter11: Gravity, Planetary Orbits, And The Hydrogen Atom
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 If the legendary apple of Newton could be released from rest at a height of 2.5 m from the surface of a neutron star with a mass 1.7 times that of our sun (whose mass is 1.99 x 1030 kg) and a radius of 19 km, what would be the apple's speed when it reached the surface of the star? (b) If the apple could rest on the surface of the star, what would be the difference between the gravitational acceleration at the top and at the bottom of the apple? Take the apple to be a sphere with a radius of 3.6 cm.

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