Parallel axes theorem​

Explanation:

The parallel axis theorem can be used to determine the moment of inertia or the second moment of area of a rigid body about any axis, given the body's moment of inertia about a parallel axis through the object's center of gravity and the perpendicular distance between the axes.

(I = I_c + Mh^2)

Where, I = moment of inertia of the body; I c = moment of inertia about the centre; M = mass of the body; h 2 = square of the distance between the two axes

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.

amplitude

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