$12.$ Ch $13$ A pendulum with a pendulum length of $1\mathrm{.}40$ m undergoing SHM and pendulum bob mass $250.$ g oscillates when released from an angle of $\backslash (7\mathrm{.}00^\{\backslash$circ$\}\backslash )$ to the vertical $($starts from rest at this angle$).($a$)$ Draw a picture and label relevant variables and known quantities. State any reasonable assumptions. $($b$)$ Determine the period, frequency, and angular frequency of the motion. $($c$)$ Determine the maximum speed of the pendulum bob and the time that it takes to reach this speed. $($d$)$ Determine the total energy stored in this oscillation assuming no losses due to friction or air resistance