Each ordinance or resolution providing for the appropriation of money or for an annual tax levy, or for improvements petitioned for by the owners of 51% or more of the land area or the foot frontage of property to be specially assessed therefor, and any emergency ordinance or resolution necessary for the immediate preservation of the public peace, property, health, safety or welfare of the City, or providing for the usual daily operation of a municipal department shall take effect, unless a later date be therein specified, upon its approval by the Mayor, or upon the expiration of the time within which it may be vetoed by the Mayor, or upon its passage over the Mayor's veto, as the case may be. No other ordinance or resolution shall become effective until after the expiration of thirty (30) days following its approval by the Mayor or thirty (30) days after the expiration of the time (10 days) within which it may be vetoed by the Mayor or thirty (30) days after its passage by Council over the Mayor's veto, as the case may be.