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Calculate the moment of inertia of each of the following uniform objects about the axes indicated. A thin 2.50 kg rod lenght 75.0 cm about an axis perpendicular to it and passing a.)(i) through one end (ii) through its center, and (iii) about an axis parallel to the rod and passing through it. b.) A 3.00 kg sphere is (i) solid and (ii) A thin walled hollow shell c.) An 8.00 kg cylinder of lenght 19.5 cm cylinder if the cylinder is (i) thin-walled and hollow and (i) solid.

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Final answer:

The moment of inertia of each object can be calculated using specific formulas. For a thin rod, it depends on the axis of rotation. For a solid sphere, it depends on whether it is solid or hollow. For a cylinder, it depends on whether it is thin-walled and hollow or solid.

Step-by-step explanation:

The moment of inertia of a thin rod can be calculated using the formula I = 1/3 * ML^2, where M is the mass of the rod and L is its length. For a rod with a mass 2.50 kg and length of 75.0 cm:

a)(i) When the axis is perpendicular to the rod and passes through one end, the moment of inertia is equal to 1/3 * 2.50 kg * (0.75 m)^2 = 0.46875 kg·m^2.

(ii) When the axis is perpendicular to the rod and passes through the center, the moment of inertia is equal to 1/3 * 2.50 kg * (0.375 m)^2 = 0.234375 kg·m^2.

(iii) When the axis is parallel to the rod and passes through it, the moment of inertia is equal to 1/12 * 2.50 kg * (0.75 m)^2 = 0.15625 kg·m^2.

b)(i) For a solid sphere with a mass of 3.00 kg and radius of 20.0 cm, the moment of inertia is equal to 2/5 * (3.00 kg) * (0.20 m)^2 = 0.96 kg·m^2.

(ii) For a thin-walled hollow shell with the same mass and radius, the moment of inertia is equal to 2/3 * (3.00 kg) * (0.20 m)^2 = 1.28 kg·m^2.

c)(i) For a thin-walled and hollow cylinder with a mass of 8.00 kg and length of 19.5 cm, the moment of inertia can be calculated using the formula I = 1/2 * m * R^2, where R is the radius of the cylinder. Assuming the radius is small, the moment of inertia is approximately equal to 1/2 * 8.00 kg * (0.0975 m)^2 = 0.03705 kg·m^2.

(ii) For a solid cylinder with the same mass and length, the moment of inertia can be calculated using the formula I = 1/2 * m * R^2 + 1/12 * m * L^2, where L is the length of the cylinder. Assuming the radius is small, the moment of inertia is approximately equal to 1/2 * 8.00 kg * (0.0975 m)^2 + 1/12 * 8.00 kg * (0.195 m)^2 = 0.0556125 kg·m^2.

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