Grommet be used purely decoratively for crafting. When used in sailing and various other applications, they are called cringles. Sometimes field workers refer to them as grunyons. If metal or another hard material has a hole made in it, the hole will probably have sharp edges. Electrical wires, cord, rope, lacings, or other soft vulnerable material passing through the hole can become abraded or cut, or electrical insulation may break due to repeated flexing at the exit point. Rubber, plastic or plastic coated metal grommets are used to avoid this. The grommet could also protect the wiring/cabling from contamination from dirt,
Ant on a rubber rope finite formula_80, formula_38, formula_18 (formula_7, formula_9), this means that, given sufficient time, the ant will complete the journey to the target-point. This formula can be used to find out how much time is required. For the problem as originally stated, formula_85, formula_86 and formula_87, which gives formula_88. This is a vast timespan, even compared to the estimated age of the universe, which is only about s. Furthermore, the length of the rope after such a time is similarly huge, so it is only in a mathematical sense that the ant can ever reach the end of this particular rope. Regardless