The first digit of the six digit number 1abcde is 1.
If the first digit is moved to the last place, we get a new number abcde1.
Given that, abcde1:1abcde = 7:2, find the value of abcde.
The earth's rotation rate is slowing down because of friction against the tidal bulges caused by the gravitation of the moon (major factor) and the sun (lesser factor). The earth's rotational energy is dissipated as heat, but where is the angular momentum going, and what physical mechanism brings that momentum there?
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