Question $4$

A $0\mathrm{.}500$ kg mass oscillates in simple harmonic motion at the end of a spring of constant $\backslash (150\backslash$mathrm$\{$~N$\}/\backslash$mathrm$\{$m$\}\backslash ).$ The total energy of the system is $2\mathrm{.}50$ J $.$ What is the amplitude of the motion $($in m$)?$

Enter a number with $2$ digits behind the decimal point.

Question $5$

What is the time period of a $6$ cm long pendulum near the surface of Earth?