Using the formula e=mc^2, how many joules of energy would 1 kilogram of matter yield?

Watt made you think I’d give you the correct answer??

We don’t usually do homework questions here, Brian.
What we do do (doodoo) is helping you with directions, as to how you can go about finding an answer.
I’m sure some Jelly with more brains than me will come and do that.
Welcome to Fluther.
~

@lucillelucillelucille

Because I know that you’re Neil degrasse Tyson IRL! ;-o

@Brian1946 I just play him on tv My hair however wants me to be Giorgio A. Tsoukalos

It depends on who owns the 1kg of matter.

If it’s something that you inherited from your father, you want to protect the family joules.

It’s easy enough To simply substitute the actual values for the letters in the equation to arrive at the answer. The trouble is that when confronted with the enormity of c squared, you wouldn’t want to be stranded on a planet where a kilo of matter might be instantly converted to energy.

The actual reason I’m asking this is because although I know that c stands for the speed of light, I wasn’t sure what numerical value to use for it.

Would it be 186,000 (miles per second), the value in feet per second, or something else?

The answer is meters/second.

@Brian1946 Using the formula e=mc^2, how many joules of energy would 1 kilogram of matter yield?

90 petajoules.

https://en.wikipedia.org/wiki/Mass%E2%80%93energy_equivalence