A vertical spring scale can measure weights up to245 NN . The scale extends by an amount of 10.0 cmcm from its equilibrium position at 0 NN to the 245 NN mark. A fish hanging from the bottom of the spring oscillates vertically at a frequency of 2.95 HzHz

Ignoring the mass of the spring, what is the mass mmm of the fish?Express your answer in kilograms.