Energy in a spring$-$mass system

A horizontal spring$-$mass system has low friction, spring stiffness $160$ N$/$m$,$ and mass $0\mathrm{.}3$ kg$.$ The system is released with an initial compression of the spring of $13$ cm and an initial speed of the mass of $3$ m$/$s$.$

$($a$)$ What is the maximum stretch during the motion?

m

$($b$)$ What is the maximum speed during the motion?

m$/$s

$($c$)$ Now suppose that there is energy dissipation of $0\mathrm{.}03$ J per cycle of the spring$-$mass system. What is the average power input in watts required to maintain a steady oscillation?

watt