8 ball pool, 7 solid, 7 stripes the 8ball and the cue ball. So 16.
To play pool, you need a pool table, pool cues (sticks), and a set of pool balls. Optional equipment includes a rack for organizing the balls and chalk for cue tip maintenance.
There is no game of pool practice, so there are no red balls. The 3 and 11 balls are red in the game of pool however.
13
There are seven striped balls in billiards.
7, The 9 - 15 balls are striped.
Depending upon the game, there are from 7 to 21 colored balls.
15 in a regular game
Pool balls are made of a phenolic resin. This comes from a mix of phenol and aldehyde.
Cannot be answered with only these measurements. For a rectangular pool, the length, width and depth are needed. For a round pool, the diameter and depth are needed.
The number of balls depends upon the game. All balls use a cue ball plus 7, 9, 15, or 21 numbered balls.
Friction. The movement of the rolling pool balls does no damage to the pool felt. However, the pool balls accumulate pool chalk that is very abrasive. The pool chalk accumulated on the balls and dropping on to the felt both result in tearing of the felt fibers as balls are struck or slide on the table. Occasionally balls bounce or are jumped on the table, resulting in even more damage. Damaged felt is a part of playing pool.
In 1887, the rules were changed from 7 balls needed for a walk to 5 balls needed for a walk. In 1889, the rules were changed again to 4 balls needed for a walk and have stayed that way since.