Calculating Energy Released from Mass Defect in Units of Kg and MeV/C2

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Discussion Overview

The discussion revolves around the calculation of energy released from a mass defect, specifically focusing on the conversion between units of kilograms and MeV/c². Participants explore the discrepancies encountered when applying Einstein's equation E=mc² using different unit systems.

Discussion Character

  • Homework-related
  • Technical explanation

Main Points Raised

  • One participant notes that 1 atomic mass unit (u) equals 931.5 MeV/c² and approximately 1.67 x 10-27 kg, but encounters mismatches in calculations when applying E=mc².
  • Several participants request the original poster to provide their calculations to assist in identifying the error.
  • The original poster expresses difficulty in sharing calculations due to typing constraints on a mobile device and requests a demonstration of the energy calculation using both units.
  • Another participant acknowledges that the problem has been resolved without detailing how.

Areas of Agreement / Disagreement

There is no consensus reached in the discussion as the original poster's calculations remain undisclosed, and the specific error is not identified. The conversation reflects a mix of requests for clarification and acknowledgment of resolution.

Contextual Notes

Participants highlight the importance of providing complete calculations for effective assistance, indicating a limitation in the discussion due to the original poster's inability to share detailed work.

Amine_prince
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So 1u = 931.5Mev/c2 = 1.67 10_27 kg . the thing is when i calculate E=mC2 with both units the calculations don't match . i can't understand why .
 
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We can't help you to find your error, if you don't show your calculations.
 
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kith said:
We can't help you to find your error, if you don't show your calculations.
Thank you for the attention sir . unfortunately i am using my phone to type so i cannot write all the calculation . can you please write the Energy released out of a mass defect of 1u by using Kg first then MeV /C2 as the unit of mass ? That can solve my problem
 
The problem is solved . thank you
 
Amine_prince said:
Thank you for the attention sir . unfortunately i am using my phone to type so i cannot write all the calculation . can you please write the Energy released out of a mass defect of 1u by using Kg first then MeV /C2 as the unit of mass ? That can solve my problem

Please note that this is usually not an acceptable excuse to not lay out the full and complete post. It is why the PF Rules also prohibit text-speak.

Zz.
 

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