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Answers by Amy C.

Find the GCF? (answer)

One method of finding GCF is to divide the larger by the smaller.  Then splitting the numerator and denominator into factors.   40m9/10m5 4(10)m5m4/10m5 (4m4)(10m5)/10m5 So the GCF is 10m5  

Physics Question (answer)

Use conservation of energy.  Initial energy = final energy potential spring = kinetic energy 1/2 k x2 = 1/2 m v2 v2 = k x2 / m v = sqrt[k x2 / m] = sqrt[1.0e4N/m (0.15m)2 / (1.2kg)] v = 13.7 m/s