Racquetball v. Squash?

What is the difference between racquetball and squash? Also can they be played with the same equipment?

The most required squash accessories

Squash is a game that requires lots of speed, fitness and endurance. The ball is hit hard and fast and can reach upto 170 miles per hour. The game demands a lot from players and from the equipment they use. In such conditions, players need the best squash accessories so that they can play a [...]