(a) Calculate the average density of the white dwarf (in kg/m). )kg/m³ (b) Calculate the surface free-fall acceleration (in m/s²). )m/s? (c) Calculate the gravitational potential energy (in J) associated with a 5.61 kg object at the surface of the white dwarf. (d) What If? The escape speed from the "surface" of the Sun, or a distance equal to its radius, is 617.5 km/s. What would be the escape speed (in km/s) from | km/s

(a) Calculate the average density of the white dwarf (in kg/m). )kg/m³ (b) Calculate the surface free-fall acceleration (in m/s²). )m/s? (c) Calculate the gravitational potential energy (in J) associated with a 5.61 kg object at the surface of the white dwarf. (d) What If? The escape speed from the "surface" of the Sun, or a distance equal to its radius, is 617.5 km/s. What would be the escape speed (in km/s) from | km/s

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Red Shift

It is an astronomical phenomenon. In this phenomenon, increase in wavelength with corresponding decrease in photon energy and frequency of radiation of light. It is the displacement of spectrum of any kind of astronomical object to the longer wavelengths (red) side.

Question

After the Sun exhausts its nuclear fuel, its ultimate fate will be to collapse to a white dwarf state. In this state, it would have approximately the same mass as it has now, but its radius would be equal to the radius of the Earth.
(a)
Calculate the average density of the white dwarf (in kg/m³).
|kg/m3
(b)
Calculate the surface free-fall acceleration (in m/s).
m/s?
(c)
Calculate the gravitational potential energy (in J) associated with a 5.61 kg object at the surface of the white dwarf.
(d)
What If? The escape speed from the "surface" of the Sun, or a distance equal to its radius, is 617.5 km/s. What would be the escape speed (in km/s) from the surface of the white dwarf?
km/s

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