20 i need creating a drawing or diagram of one of these three options a: photosynthesis b: cellular respiration c: the carbon cycle plz

The bar of prob. 5/82 is repeated here. the ends of the 0.4-m bar remain in contact with their re- spective support surfaces. end b has a velocity of 0.5 m/s and an acceleration of 0.3 m/s2 in the di- rections shown. determine the angular accelera- tion of the bar and the acceleration of end a.

Which substance partical has negligible massand travels around outsidethe nucleus

Do you think you could give me the answers to #29?