A thin stick of mass 0.5 kg and length L = 0.4 m is attached to the rim of a metal disk of mass M = 5.0 kg and radius R = 0.3 m. The stick is free to rotate around a horizontal axis through its other end (see the following figure). (a) If the combination is released with the stick horizontal, what is the speed (in m/s) of the center of the disk when the stick is vertical?
(b) What is the acceleration (in m/s2) of the center of the disk at the instant the stick is released? (Enter the magnitude.)
(c) What is the acceleration (in m/s2) of the center of the disk at the instant the stick passes through the vertical?

answer; (d) spontaneous processes are characterized by the overall conversion of order to disorder;

attach the statements so i can answer : )

im guessing the west of station b

bacteria that live on the ocean floor are sustained by phytoplankton. phytoplankton, microscopic marine photosynthetic organisms, have a vastly significant role to play not only in the marine food web of which they’re part of, but also on a more global scale. despite their infinitely small size in comparison to other marine organisms, these tiny creatures occupy an immensely important ecological niche: they are the foundation of the marine food web, and as primary producers, play key roles in supporting all other organisms in the marine environment, as well as in the regulation of the earth’s climate through the sequestration of carbon, oxygen production, and other related processes. phytoplankton account for roughly half of all global primary productivity; therefore, their significance extends far beyond the marine environment alone. there is an intriguing sense of irony in the realization that these tiny living beings that often live out their existence unnoticed and undetected by the rest of the world, have such a far-reaching impact on the lives of virtually all other living organisms on the planet, particularly on those in the marine environment. the world that we have become accustomed to has been and is continuously shaped by the workings of these miniscule yet vital “plants of the sea”.

hope this !