An electric ceiling fan is rotating about a fixed axis with an initial angular velocity magnitude of $0\mathrm{.}210$ rev$/$srev$/$s $.$ The magnitude of the angular acceleration is $0\mathrm{.}915$ rev$/$s$2$rev$/$s$2.$ Both the the angular velocity and angular accleration are directed counterclockwise. The electric ceiling fan blades form a circle of diameter $0\mathrm{.}760$ mm $.$ Compute the fan's angular velocity magnitude after time $0\mathrm{.}209$ ss has passed. Through how many revolutions has the blade turned in the time interval $0\mathrm{.}209$ ss from Part A$?$ What is the tangential speed vtvt of a point on the tip of the blade at time tt $=0\mathrm{.}209$ ss $?$ Calculate the magnitude atat of the tangential acceleration of a point on the tip of the blade at time tt $=0\mathrm{.}209$ ss $.$ Calculate the magnitude arar of the radial $($or centripetal$)$ acceleration of the point at the end of the fan blade.