Grailroad tracks are made from segments l = 79 m long at t = 20° c. when the tracks are laid, the engineers leave gaps of width l between adjacent segments to allow for thermal expansion. the coefficient of linear expansion is α = 12 × 10-6 °c-1 and engineers design the tracks to withstand temperatures of tc = 39.5 degrees.
(a) enter an expression, in terms of given variables, for the minimum gap distance l the engineers must leave for a track rated at temperature tc

found in the nucleus

has mass of one amu

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.

yo yo yo its papaguy in the house lol

okay, ima .

um it shows links to uh so kinda microsoft website is that were ima go or no? ?