Auniform thin rod of length 0.8390.839 m is hung from a horizontal nail passing through a small hole in the rod located 0.0310.031 m from the rod's end. when the rod is set swinging about the nail at small amplitude, what is the period of oscillation?

as we probably am aware that our atmosphere or air have various levels, each level has different gasses, and each gas has another porousness. at the point when the light originates from lower porousness to higher penetrability, it alters its course. with the goal that implies that when the light originates from the moon to the earth, it alters it's course a lot more occasions. it essentially implies that the state of the light piece of the moon is changed on the earth.

not copied too! hope this !

joke:

h o h o hope you have a merry christmas!

not too sure thinking all accelerations are pointed down