English modal verbs - Deduction. 1  In English, modal verbs as must, have to, have got to, canât and couldn't are used to express deduction and contention. 2  You're shiveringâyou must be cold. 3  Someone must have taken the key: it is not here. 4  I didn't order ten books. This has to be a mistake. 5  These aren't mineâthey've got to be yours.
Extenuating Circumstances. Facts surrounding the commission of a crime that work to mitigate or lessen it. Extenuating circumstances render a crime less evil or reprehensible. They do not lower the degree of an offense, although they might reduce the punishment imposed.
In physics, attenuation (in some contexts also called extinction) is the gradual loss in intensity of any kind of flux through a medium. For instance, sunlight is attenuated by dark glasses, X-rays are attenuated by lead, and light and sound are attenuated by water.n engineering, attenuation is usually measured in units of decibels per unit length of medium (dB/cm, dB/km, etc.) and is represented by the attenuation coefficient of the medium in question.