Four point charges of equal magnitude Q = 45 nC are placed on the corners of a rectangle of sides D1 = 19 cm and D2 = 7 cm. The charges on the left side of the rectangle are positive while the charges on the right side of the rectangle are negative. Use a coordinate system where the positive y direction is up and positive x direction is to the right. calculate the angle of the net force vector to the +x axis, with the positive direction being counterclockwise from the positive horizontal axis. enter an angle between -180 and 180.

magnitude and direction

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.

the device is called “ rocket engine”