Find masses on an equilibrium plane

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    Equilibrium Plane
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To calculate the masses A, C, and D for the equilibrium problem involving object B with a mass of 0.785 kg, the lengths L1 to L6 are provided as key dimensions. The equilibrium condition requires that the moments about the pivot point must balance, which can be expressed mathematically. Participants in the discussion emphasize the importance of showing work and calculations to adhere to forum rules. The calculations involve applying the principles of torque and equilibrium to derive the unknown masses based on the given data. Accurate results depend on careful consideration of the distances and the known mass of object B.
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Can anyone help me on how to calculate mass C, mass D, and mass A from the diagram in the atachment whose is in equilibrium if:

The object B has mass of 0.785 kg. Determine the mass of object C. Assume L1 = 30.4 cm, L2 = 7.50 cm, L3 = 14.6 cm, L4 = 5.00 cm, L5 = 16.8 cm and L6 = 5.00 cm. (Neglect the weights of the crossbars.)
 

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Same as your previous questions - show some work and an attempt at a solution, as per the forum rules.
 
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