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1.A 3-kg mass is attached to a relaxed spring withk= 400 N/m and is initially at...

1.A 3-kg mass is attached to a relaxed spring withk= 400 N/m and is initially at rest. A 0.1 kg bulletembeds itself in the block, causing it to move in thepositivexdirection. Find: (a) The initial phaseangle,φ0, of the oscillator. (b) The frequency,f, of the oscillations after collision.

2.Consider a simple harmonic oscillator with amplitudeA. When its acceleration is at its maximum(positive) value, what is its positionx?

Please help me. Thank you

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