</span>If Earth attracts a person with a gravitational force of <span><span>7.0 × 10² </span>newtons, the person attracts Earth with a gravitational force of 7.0 × 10² newtons.</span>
Only portions of the electromagnetic spectrum is visible to the human eye. Electromagnetic radiation in this range of wavelengths is called visible light which have wavelengths from about 390 to 750 nm that is; ultraviolet light and visible light.
