How Does Earth's Potential Energy Change from Perihelion to Aphelion?

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Homework Help Overview

The discussion revolves around the change in Earth's gravitational potential energy as it moves from perihelion to aphelion in its elliptical orbit around the Sun. The subject area includes gravitational potential energy and orbital mechanics.

Discussion Character

  • Exploratory, Assumption checking, Mathematical reasoning

Approaches and Questions Raised

  • Participants discuss the formula for potential energy change and the variables involved, questioning the values for mass and gravitational constant. There is an exploration of the necessary parameters to calculate the change in potential energy.

Discussion Status

The discussion is active, with participants providing insights into the variables needed for the calculation. Some have attempted to compute a value for the potential energy change, while others are verifying the units associated with the result. There is no explicit consensus on the final answer yet.

Contextual Notes

Participants are navigating the challenge of identifying the correct values for the constants involved in the potential energy formula, indicating a potential gap in information regarding the mass of the Sun and the gravitational constant.

Robertoalva
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Earth's distance from the Sun varies from 1.47 multiplied by 1011 m at perihelion to 1.52 multiplied by 1011 m at aphelion because its orbit is not quite circular. Find the change in potential energy as Earth goes from perihelion to aphelion.



Homework Equations


ΔU=GMm ((1/r1)-(1/r2))


The Attempt at a Solution



i don't have any idea of what the value of m is
 
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How about M?

You know, this is the internet. You could always look it up.
 
G= gravitational constant
M= mass of the sun( or the object that is being orbited.)
m= the object orbiting.
 
Well,do you know what values to use for G, M, and m?
 
Yes, i got gor answer the following

1.774625476E32
 
Any units which might be associated with this answer?
 
Joules
 

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