Yes. RNGs produce random numbers not influenced by previous or impending results. This means the slots are random, and each spin is entirely independent from one another.

That depends on where you live. Each state has its own regulations on private ownership of slot machines. According to the U.S. Slot Machine Laws by State page at letsgambleusa.com, slot ownership is prohibited in Alabama, Connecticut, Hawaii, Indiana, Nebraska, New Mexico, South Carolina, Tennessee and Wisconsin.

Speed of play On the two traditional mechanical reel slot machine games, the player can play approximately every 6 s, which is approximately 10 spins per minute, or 600 spins per hour.

Par sheet means a specification sheet for a gaming machine that provides machine hold percentage, model number, hit frequency, reel combination, number of reels, number of coins that can be accepted, and reel strip listing.