#1: Kinetic energy drops are fairly predictable. You can assume, roughly, that an arrowâs kinetic energy is reduced by around 3-4% for every 10 yards it travels. So if we have 100 ft-lb initial energy (at 0 yards), at 10 yards you can expect roughly 97-97 ft-lbs. of KE. This is a good rough rule to remember in case you need to do some quick on-the-spot kinetic energy calculations in the field.
The definition of crag is the neck or throat area, or a rugged rock that sticks out from a mass of rocks. An example of a crag is an animal's throat. An example of a crag is a sharp, large rock poking out from a mountain.
Noun. 1. crock-a black colloidal substance consisting wholly or principally of amorphous carbon and used to make pigments and ink. carbon black, lampblack, smut, soot.rock. n. 1. (Ceramics) an earthen pot, jar, etc. 2. (Ceramics) a piece of broken earthenware. 3.