How to convert the energy in Joules to mass in a metric done

AI Thread Summary
To convert energy in Joules to mass in metric tons, the equation E = mc² is essential, where E represents energy and m is mass. The discussion highlights the need for clarity regarding the specific context, such as whether the energy pertains to a moving object or the total energy released from mass conversion. Once the mass in kilograms is calculated using the equation, it can be converted to metric tons by applying the appropriate conversion factor. Participants emphasize the importance of providing more details for accurate assistance. Understanding the relationship between energy and mass is crucial for making the conversion.
bpollard
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any help would be appreciated. not sure where to start.
 
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What do you mean convert energy in joules to mass in a metric done? I don't understand that statement.

What sort of system are you dealing with? Are you just trying to get a rest-mass for something given it's energy?

You have to give us more information, otherwise we can't help
 
sorry, you are right.
Let me try again, can you help me convert energy (in Joules) to a mass (metric Tons)
I can't figure out how to go about this.
 
E = mc2 , I suppose.
 
It's also unclear what exactly you're dealing with.

Is this the energy of a moving object?

Or are you specifically looking for mass of an object which when completely converted into energy gives off a certain amount in Joules?

If it's the latter then you just use E = mc^{2} which will give you the mass in kg, then you just need to find how many kg are in a metric ton.
 

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