Sometimes people are mean because they are not like you and they want to be like you. Although it's always good to try to find out why exactly someone is being mean to you, you often may never know; however, you may have a gut feeling if someone's being mean to you and you don't have to stand for it.
Thus, in SI units, a force of 1 N exerted over a distance of 1 m is 1 NÂ·m of work. The Work-Energy Theorem states that the work done on a body is equal to the change in energy of the body. 1 NÂ·m = 1 J (joule), the SI unit of energy.
Electromagnetic energy is measured in units of wavelength and frequency. The wavelength is the distance that a wave travels in one cycle and is measured in metres. The frequency is measured by the number of cycles per second and the unit of measurement is the Hertz (Hz). One cycle per second equals one Hertz.