Help with This for Finding Solutions

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    Chemistry
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Discussion Overview

The discussion revolves around finding solutions related to the moment of inertia, specifically for a collection of point particles. Participants are exploring relevant equations and attempting to clarify their understanding of the topic.

Discussion Character

  • Homework-related, Technical explanation

Main Points Raised

  • One participant expresses uncertainty about their calculations for the moment of inertia, presenting equations for IH and ID.
  • Another participant emphasizes the importance of showing an attempt and asks for relevant equations to be identified.
  • A later reply questions the general definition of the moment of inertia for point particles and seeks to confirm if the presented equations align with this definition.
  • The same participant acknowledges the definitions of ##r_H## and ##r_C## as seen in the original post, stating that the moment of inertia equations appear to be correct and inquires about the next steps.

Areas of Agreement / Disagreement

Participants do not reach a consensus, as there is uncertainty expressed by the original poster and a request for further clarification on the next steps in the problem-solving process.

Contextual Notes

There are limitations in the discussion regarding the assumptions made in the equations and the definitions of the variables involved, which remain unresolved.

Vanillasyrup
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Homework Statement
From the moment of inertia of C2H2 and C2D2, I have to calculate the C≡C and C-H (C-D) bond lengths. I am confused on how to form the 2 simultaneous equations.
Relevant Equations
rH=
rC=
I really need help with this.
 

Attachments

  • Bond length.jpeg
    Bond length.jpeg
    20.3 KB · Views: 183
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You need to at least show an attempt. What are the relevant equations?
 
Thank you for your reply. This is what I got so far but I am very unsure.
IH=(mCrC^2 + mHrH^2)x 2
ID=(mCrC^2+ mDrH^2)x 2
 

Attachments

  • Screenshot 2022-03-06 171600.png
    Screenshot 2022-03-06 171600.png
    1.9 KB · Views: 203
What is the moment of inertia for a collection of point particles in general? Does this match what you have written?

Edit: my apologies. I see from the picture in OP how you have defined ##r_H## and ##r_C##. Your moment of inertia equations are correct. What is the next step?
 
Last edited:

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