The energy that would be released if the mass was converted to energy is 9 * 10^-4 J
<h3>What is Einstein equation?</h3>
According to the Einstein equation, mass and energy can be interconverted. This is possible by the use of the equation E = mc^2
Where;
m = mass
c = speed of light
Hence;
E = 1 * 10^-20 Kg * (3 * 10^8 m/s)^2
E = 9 * 10^-4 J
Learn more about Einstein equation:brainly.com/question/10809666
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A would be the answer because thats how long it takes
Explanation:
The sun's gravitational force is very strong. If it were not, a planet would move in a straight line out into space. The sun's gravity pulls the planet toward the sun, which changes the straight line of direction into a curve. This keeps the planet moving in an orbit around the sun