Changing the spring constant also changes the period, if k 2 k 1 then T 2 T 1 For simple harmonic motion the period is independent of amplitude, i.e. extension does not affect the period of oscillation, hence stretching the spring more to start with makes no difference to period.
Manila is located on the northwestern coast of the Philippines. Its population of 1.6 million is divided between a booming business district in Makati City and destitute communities on the fringes. In the poorest regions, multiple families live in close quarters in makeshift communities.
Manila (and more broadly speaking, Metro Manila) is the economic and political capital of the Philippines, home to extensive commerce and some of the most historically and culturally significant landmarks in the country, as well as the seat of the executive and judicial branches of the government.