des suspensions lumineuses sont suspendues dans le salon par les deux fils CB et CA accrochés en C. La masse des suspensions lumineuses (S) est m=600g .Calcule les tensions TCA, TCB. On donne l'angle CAB=45° , l'angle CBA=30° .ps schéma triangulaire ​svp aider moi c'est urgent​

Aperson stands on a platform, initially at rest, that can rotate freely without friction. the moment of inertia of the person plus the platform is ip. the person holds a spinning bicycle wheel with its axis horizontal. the wheel has moment of inertia iw and angular velocity ωw. take the ωw direction counterclockwise when viewed from above. part a what will be the angular velocity ωp of the platform if the person moves the axis of the wheel so that it points vertically upward?

What causes the development of most clouds and precipitation in the atmosphere?

Aa a of 22 m/s at an of 36.9 .be . a. b. c. (3)x y of? (3)go? (4) () it to to ?