What happens to the duration of the day when polar ice caps melts?
Earth rotates about its polar axis. When ice of polar caps of earth melts, mass concentrated near the axis of rotation spreads out. With increase of I,T will increase i.e., lenght of the day will increase. …
When whole ice of polar caps melt then duration of day become?
If all the ice on the polar caps of the earth melts and is converted into water, then the water will flow away from the axis of rotation and hence the M.I. of the rotating earth will increase. ∴ The duration of the day will be more than 24 hour.
What will be the effect on the length of the day of the polar ice caps of earth do not melt?
When ice of polar caps of earth melts, mass. concentrated near the axis of rotation spreads out. Therefore, moment of inertia ‘I’ increases. As no external torque acts, L=Iω=I(2πT) = constant with increase of I, T will increase i.e., length of the day will increase. .
What is the duration of day when ice at poles melt?
If the ice cap of the poles melts, ice will flow towards the equator, and will increase the moment of inertia of the earth thereby decreasing its frequency of rotation. Due to decrease of the frequency of rotation, the day length increases.
When ice on polar caps of earth melts duration of the day increases r 2 LIIT constant?
When ice of polar caps of earth melts, mass concentrated near the axis of rotation spreads out. Therefore, the moment of inertia I increases. With increase of I,T will increase i.e length of the day will increase.
When ice on polar caps of earth melts duration of the day increases R lii2 constant?
Infact, as ice on polar caps of earth melts, mass near the polar axis spreads out, Moment of inertia I increases. Therefore, T increases i.e. duration of the day increases.
What will be the effect on the length 24 hours of a day if ice on the poles of the earth melts and water comes at the equator?
For example, if the Greenland ice sheet were to completely melt and the meltwater were to completely flow into the ocean, then global sea level would rise by about seven meters (23 feet) and Earth would rotate more slowly, with the length of the day becoming longer than it is today, by about 2 milliseconds.