PHYSICS
posted by SAN .
A SPRING WITH A CONSTANT K = 8N/m IS STRETCHED 5CM AND RELEASED. IT BOBS UP AND DOWN EVERY 2.5 SECONDS. WHAT IS ITS FREQUENCY, PERIOD, ABD AMPLITUDE

Are not these standard formulas?http://hyperphysics.phyastr.gsu.edu/hbase/shm.html
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