Physics
posted by Anonymous .
A spring stretches 4.3 cm when a 13 g object is hung from it. The object is replaced with a block of mass 22 g that oscillates in simple harmonic motion, calculate the period of motion.

Physics 
drwls
Period = 2*pi*sqrt(m/k)
k is the spring constant in Newtons/meter.
k = x*g/(deflection)
Use SI units (kg, m, seconds, and N/m), or else k must be in dynes/cm.
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