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The correct answer is 7.24
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no because nuclear energy come from kinetic not potential energy. burning a wax candle is an example of heat/thermal energy .
Both of them are substances which comes between the path of electricity but the difference is that one let the electricity to pass that is conductor and other acts as breaker in the connection which is a insulator.
Answer;
D. The component waves have different frequencies.
Explanation;
-Interference is a property of waves that results from combination of two or more wave trains moving on intersecting or coincident paths. This effect results to the addition of the amplitudes of the individual waves at each point affected by more than one wave.
-When two waves are of the same frequency and are in phase (which means; they vibrate at the same rate and are maximum at the same time), the wave amplitudes are reinforced, producing constructive interference.
-Conversely, when two waves are out of phase by half period (meaning that one is minimum when the other is maximum), the result is destructive interference, producing complete annulment if they are of equal amplitude.
Light that travels away from us increases in wavelength which causes it to change to the color red. This proves that the universe is expanding from its previous state, which was a small ball of energy that burst and created the universe.