Social Studies, 04.04.2020 13:04 zeesharpe05
Wilhelmina and Darcy are thinking about the possibility of the ice cap at the North Pole melting. Wilhelmina asks Darcy if this melting will affect the length of an Earth day, and if so, how. Which of Darcy's responses is correct?
a. "When the ice is concentrated at the North Pole, Earth has a lower moment of inertia than when the melted water is distributed on its surface. Because angular momentum is conserved, when the moment of inertia is larger, the angular speed is smaller. This means the day will belong."
b. "When the ice is concentrated at the North Pole, Earth has a lower moment of inertia than when the melted water is distributed on its surface. Because angular momentum is conserved, when the moment of inertia is larger, the angular speed is larger. This means the day will be shorter."
c. "When the ice is concentrated at the North Pole, Earth has a greater moment of inertia than when the melted water is distributed on its surface. Because angular momentum is conserved, when the moment of inertia is larger, the angular speed is smaller. This means the day will be longer."
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Wilhelmina and Darcy are thinking about the possibility of the ice cap at the North Pole melting. Wi...
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