The circuit shown uses ideal opamp powered from a supply $V_{CC}=5 V$. If the charge $q_p$ generated by the piezoelectric sensor is of the form $q_p=0.1 \sin(10000\pi t) \mu C$, the peak detector output after 10 cycles of $q_p$ $\text{(in volts, rounded off to one decimal place)}$ is ______.
