im home all night tonight and im super bored what can i do to entertain myself??
something is erroneous or lacking from this concernthere's a bar spinning around a horizontal axis that takes 2 seconds to bypass around, or a million sec to bypass a million/2 way, from appropriate to backsideNo velocities or accelerations are given, so as a manner to make any determination, we ought to make an assumption approximately how the bar exchange into set in actionAny of the lengths must be set to such a state with the perfect preliminary speed, as a thank you to get one specific answer i could assume the bar exchange into released from the perfect of the arc and acted on by way of the earth's gravity, with out preliminary speed(we'd additionally ought to assume no friction, or aerodynamic resistance) so as that, the bar swings back as much as the perfect from the backside interior an identical time it takes to bypass from appropriate to backsidewe desire only evaluate the exchange in vertical place for the middle of the bar ( draw a image ), that's the size of the barUse the equation /x ( a t^2 ) / 2 the place /x (the exchange in vertical place) may be the size of the bar, a is the acceleration, gravity, which 9.80 one m/s^2 and t is the time to bypass from appropriate of circle to backside, a million sec length /x (9.81m a million^2)/2 4.905 m yet that's no longer between the techniques
1 A copper 2 A 3 D 4 i dont know i thought temp influenced speed of air molecules
