.thus creating an electromagnetic wave..now this carries energy with it. so unless the charge is being given enough kinetic energy to replenish the supplied energy to the waves produced its gonna stop. thus in no way is the work energy theorem violated.......
EM waves are generated from the interaction of Electric and Magnetic Field. EM wave needs no medium to transmit energy.
Sound waves (Acoustic wave you may also say) generally travel a lot slower than electromagnetic waves, but the speed of each is dependent on the characteristics of the medium that it is traveling through.
The frequency of Acoustic wave is much lower than that of the EM Waves and as the energy is directly proportional to the frequency, Sound wave can transmit much lower energy and consequently it can't travel far.
when you have a charge which is moving at a particular frequency it produces electromagnetic waves with the same frequency . this is because of the continuously changing electric field which induces a magnetic field. now since this magnetic field is also changing with time it induces an electric field and so on(in accordance to Faraday's law)..thus creating an electromagnetic wave..now this carries energy with it. so unless the charge is being given enough kinetic energy to replenish the supplied energy to the waves produced its gonna stop. thus in no way is the work energy theorem violated.
But in a sound wave the energy from a source goes to moving particles and not to changing fields..so i guess that is the main difference...hope it helps
EM wave are traverse wave whereas sound wave are longitudinal wave.
