A block of mass 4KG hangs from a spring of force constant k=400N/M. The block is pulled 15cm below equilibrium and
released. Find
a) The differential equation of motion
b) Position of the mass at later time t
c) Amplitude and period of motion

Sequoia national park  /  inyo national forest, california, u.s. mount whitney is the tallest mountain in california, as well as the highest summit in the contiguous united states and thesierra nevada—with an elevation of 14,505 feet (4,421 m).

Jobs that people can do to earn a living in southwest asia are being a diving instructor, a journalist, a teacher, a photographer, a dj, a tour guide, a web designer, a fitness instructor, and more.

Why you put last one a? i think is b.