# He position of a mass-on-a-spring oscillator is given by y = A sin(15t), where the value...

###### Question:

he position of a mass-on-a-spring oscillator is given by

y = A sin(15t),
where the value of t is in seconds and
A = 0.34 m.
(a) What is the maximum kinetic energy of an oscillator of mass 2.2 kg?
J

(b) Suppose the amplitude is increased so that the maximum kinetic energy is doubled. What is the new value of A?
m

2) A guitar string of diameter 0.6 mm and length 0.69 m is subject to a tension of 146 N. If the string stretches an amount 0.41 mm, what is Young's modulus of the string?
Pa

3)The displacement of a harmonic oscillator is given by y = 2.2 sin(23t), where the units of y are meters and t is measured in seconds.
(a) Find the amplitude.
m

(b) Find the frequency.
Hz

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