What is the moment of inertia i of this assembly about the axis through which it is pivoted? Express the moment of inertia in terms of mr

The moment of inertia of the assembly is

Explanation:

Moment of inertia of a rod of mass M and length L about its center is given by

Substitute for M and 2x for L

Moment of inertia of mass , distance x from the axis:

Moment of inertia of mass , distance x from the axis:

The moment of inertia of each of the components is found out. Moment of inertia of point particle with mass MM is given by the product of its mass and the square of its distance from the axis

The total moment of inertia of the system is given by:

Substitute from to the above relation:

The moment of inertia of the assembly is

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.

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