A100-meter sprint is a race using only the straight side of a racetrack. a 400-meter sprint is a race that makes one complete lap around a racetrack. why are velocity and speed the same for a 100-m sprint but not a 400-m sprint?

Answer with Explanation:

velocity and speed are the same for a 100-m sprint but not a 400-m sprint because velocity is Displacement/Time i.e since in 100-m sprint race, the athlete run from point A to B on a straight line (distance traveled in a specific direction - Displacement), but in 400-m sprint race, the athlete run from point A back to point A (coming back to the origin), the athlete didn't just travel in one direction.

Therefore their velocity and speed can't be the same since they don't have equal displacement.

sleep paralysis is a parasomnia, events associated with sleep.

sleep paralysis happens when you are in the middle of waking up or falling asleep. it is the feeling of being conscious but unable to move. it definitely involves hallucinations.

i had a friend that had sleep paralysis and he told me a story one time where he was laying in bed and he couldn't move his body no matter how hard he tried and there was someone standing in the corner of his room coming towards him. he couldn't move and you can't "wake up" because you are already conscious. sometimes sleep paralysis can be triggered by frequent waking up during the night based off of multiple trips to the bathroom, or if you had ever been abused, sleep paralysis can start happening from things like that.

their crystal patterns have been disrupted by stress