Solving Density Problems: Neutron Stars Homework

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SUMMARY

This discussion focuses on solving density problems related to neutron stars in an AP Physics context. The typical mass of a neutron star is 2.7 x 10^28 kg, and its radius is approximately 1.2 x 10^3 m. The density is calculated using the formula density = mass/volume, leading to a straightforward solution. Additionally, the weight of a dime made from neutron star material, with a volume of 2.0 x 10^-7 m³, is determined to be 2.2 pounds.

PREREQUISITES
  • Understanding of density calculations
  • Familiarity with the properties of neutron stars
  • Basic knowledge of volume and mass relationships
  • Proficiency in unit conversions (e.g., kg to pounds)
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  • Research the properties and formation of neutron stars
  • Study the concept of density and its applications in astrophysics
  • Learn about unit conversions between metric and imperial systems
  • Explore advanced physics equations related to stellar structures
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Students in AP Physics, educators teaching astrophysics, and anyone interested in understanding the physical properties of neutron stars and density calculations.

drewsteriam
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Homework Statement


Alright, this chapter in my AP Physics class has been giving me all sorts of problems, so need tons of help. Here is the first problem:
Neutron stars consist only of neutrons and have unvelievably high densities. A typical mass and radius for a neutron star might be 2.7 x 10^28 kg and 1.2 x 10^3 m. (a) Find the density of such a star. (b) If a dime (V=2.0 x 10^-7 meters cubed) were made from this material, how much would it weigh (in pounds)?


Homework Equations


I'm not sure what equations are relevant, but I will give it a try: P+.5p(v)^2+pgy=p+.5pgy


The Attempt at a Solution


I don't really know any of this so I don't know where to start. Any help would be appreciated, Thanks.
 
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Density = mass/volume

2.2 pounds = 1 kg
 
Thanks, that was a lot simpler than I thought it would be.
 

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