All are examples of mechanical energy except
radio signals sent through space
thunder heard from many miles away
the nuclei of atoms splitting into parts

Radio signals sent through space

Explanation:

>Radio signals are electromagnetic signals which can travel through space even in vacuum where no air is absent . Radio signals carry energy in the form of electromagnetic wave .

>Thunder heard from many miles away is due to propagation of sound wave in the air or atmosphere . The sound wave carries energy in the form of mechanical energy which can not propagate in vacuum and requires a medium .

>When nuclei of atoms split into parts they fly away from each other with some speed carrying kinetic energy which is a part of mechanical energy .

Thus mechanical energy is involved in all the given examples expect the case of radio signals sent through space.

Explanation:

the nuclei of atoms splitting into parts

Explanation:

Mechanical energy is the energy which is the combined name of kinetic and potential energy.

Radio signals have kinetic energy. So it is an example of mechanical energy.

Thunder also a form of energy which is due to the travelling of sound waves, so it has mechanical energy.

The energy due to the splitting of nucleus is called nuclear energy.

a straight line sloped

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