Intensity of a sound wave. Assume that the source is located in the exact center of a large sphere, then the power of the sound wave is distributed evenly over the surface area of the sphere. Consider five scenarios where the power of the source depends on some constant and the radius of the sphere depends on some constant. Arrange the intensities of the sound waves from lowest to highest.

a) are muscles that have bands.

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hello there!

your answer is a “generator”

a generator does not create energy but instead it transforms it.

it’s basically a motor working in reverse.

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.