What is the energy equivalent of 0.026 kg?

7.8 x 10⁶ J

Explanation:

using the Mass-Energy equivalence formula,

i.e   E = mc²

where

E = energy

m = mass = given as 0.026 kg

c = speed of light = which we will assume to be 3 x 10⁸ m/s

substituting the above into the formula

E = mc²

= 0.026 x (3 x 10⁸ )²

= 0.026 x (9 x 10¹⁶ )

= 2.34 x 10¹⁵ J

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the independent variable, or the one that is intentionally manipulated is the speed.