### What is the amplitude of vibration

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Q1. A 0.50-kg object is attached to an ideal massless spring of spring constant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.7 m/s at the equilibrium position.

What is the amplitude of vibration?

Q2. A heavy piece of hanging sculpture is suspended by a 91 cm long, 5.0 g steel wire. When the wind blows hard, the wire hums at the frequency of 80 hz. What is the mass of the sculpture?

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