(Answered) 1nbspthe position of a mass is oscillating on a spring is

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1) The position of a mass is oscillating on a spring is given by x = (18.3cm) cos[(2.35s^-1)t]. What is the frequency of this motion? ((((answer: 0.374 Hz))))

2) How much work is required to stretch a spring 25.2 cm if its force constant is 123 N/m? ((((0.391 J))))

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