The scale of a spring balance reading from zero to 180 N is 7.00 cm long. A fish suspended from the balance is observed to oscillate vertically at 2.50 Hz. What is the mass of the fish? Neglect the mass of the spring. ________ kg Attempt k =(180-0)/(7-0) = 25.714 N/m frequency = (m/k)^(1/2) 2.5 = (m/25.714)^(1/2) 6.25 = m/25.714 m = 160.714 kg I am pretty certain this is wrong.