The 4th one is correct
it starts from the sun then hay then rabbit then eagle
The answer is C. Electrical;mechanical
A they all move the same speed in a vacuum this is because in a the photons don't bump in to anything
<u>Answer:</u>
The number of complete wavelengths in a given unit of time is called frequency (f). As a wavelength increases in size, its frequency and energy (E) decrease. From these equations you may realize that as the frequency increases, the wavelength gets shorter. As the frequency decreases, the wavelength gets longer.
<u>Explanation:</u>
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