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05.12.2019 •
Physics
What percentage of the earth's surface is currently covered by oceans?
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Ответ:
More than 70% of the earth's surface is covered with oceans.
Ответ:
Gravitational potential energy = 524.85 kJ
Explanation:
Refer the figure.
Gravitational potential energy = mgh
Mass, m = 75 kg
Acceleration due to gravity, g = 9.81 m/s²
We have
Gravitational potential energy = 75 x 9.81 x 713.36 = 524854.62 J = 524.85 kJ