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categoryفيزياء schoolبكالوريوس event_available2026-07-15

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The next three questions pertain to the situation described below. Seven identical point particles of mass M are arranged in the x-y plane, with one at the origin and the other six equally spaced into a hexagon as shown. The particles are connected into a rigid assembly by twelve identical massless rods of length L. The angle between adjacent rods is 60°. The z-axis is out of the page, and the moment of inertia for rotations around the Z-axis is I₂ = 6ML². 9. (8 points) What is the moment of inertia of the object for rotations around the y-axis? a. I₁ = 6ML² V b. I, = 3ML² c. Ly = 7ML² d. I₁ = 8ML² e. Ly = 4ML² 10. (8 points) What is the moment of inertia of the object for rotations around the x-axis? a. Ix = 4ML² b. Ix = 8ML² c. 1x = 7ML² d. Ix = 6ML² e. Ix = 3ML² 60° L 11. (4 points) What is the moment of inertia for rotations around an axis parallel to the Z-axis but passing through one of the outer six particles? a. 13ML² b. 12ML2 c. 14ML²

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