Respuesta :
[tex]Given:\\m=3kg\\E=2.7\cdot 10^{17}J\\\\Find:\\c=?\\\\Solution:\\\\E=mc^2\\\\c^2= \frac{E}{m} \\\\c= \sqrt{\frac{E}{m}} \\\\c= \sqrt{ \frac{2.7\cdot 10^{17}J}{3} } = (2.7\cdot 10^{16} \frac{m^2}{s^2} )^{ \frac{1}{2} }=3\cdot 10^{8} \frac{m}{s}[/tex]
From Einstein's energy equation, the speed of light is calculated as; 3 * 10⁸ m/s
How to work with the energy equation?
We know that Einstein's energy equation is;
E = mc²
where;
E = energy
m = mass
c = speed of light
We are given;
m = 3 kg
E = 2.7 * 10¹⁷ J
Thus;
2.7 * 10¹⁷ = 3c²
c = √(2.7 * 10¹⁷/3)
c = 3 * 10⁸ m/s
Read more about energy equation at; https://brainly.com/question/2772265
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