Celestial Mechanics: Calc Mass & Velocity of Proton

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SUMMARY

This discussion focuses on calculating the mass and velocity of a proton based on its kinetic energy being half of its total energy. The mass of the proton is established as 3.34 x 10^-27 kg, derived from the known mass of a proton (1.67 x 10^-27 kg). The velocity of the proton is calculated to be 0.87 times the speed of light (0.87c). The primary equation referenced is Einstein's mass-energy equivalence, E = mc^2, which is essential for understanding the relationship between mass and energy in this context.

PREREQUISITES
  • Understanding of Einstein's mass-energy equivalence (E = mc^2)
  • Familiarity with kinetic and total energy concepts in physics
  • Basic knowledge of gravitational equations, specifically E(kinetic) = Gm(1)m(2)/R^2
  • Concept of relativistic mass and its implications in high-velocity scenarios
NEXT STEPS
  • Study the implications of relativistic mass in particle physics
  • Learn about gravitational potential energy and its role in celestial mechanics
  • Explore the derivation and applications of the equation V(orbit) = sqrt(GM/r)
  • Investigate the effects of velocity on mass and energy in high-speed particles
USEFUL FOR

Students and educators in physics, particularly those focusing on celestial mechanics, particle physics, and energy-mass relationships. This discussion is also beneficial for anyone seeking to deepen their understanding of relativistic effects on mass and velocity.

a.a
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Homework Statement


a) Calculate the mas of a proton ( ms = 1.67 * 10^-27 kg) whose kenetic energy is half its toral energy. (ANS. 3.34 * 10^ -27 kg)
b) How fast is it travelling? ( ANS. 0.87c) c- speed of light


Homework Equations



E(kenetic) = Gm(1)m(2) all over R^2

E(total) = -0.5Gm(1)m(2) all over R

V(orbit) = sqrt. GM/r, where M is the mass of planetary object

E = mc^2


The Attempt at a Solution



The most I can come up with is that there is no gravitational potential energy because
1/2E(k) = E(total)
 
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a.a said:
a) Calculate the mas of a proton ( ms = 1.67 * 10^-27 kg) whose kenetic energy is half its toral energy. (ANS. 3.34 * 10^ -27 kg)
I believe the question is asking for the proton's relativistic mass.
 

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