Abaseball with a mass of 0.15 kilograms collides with a bat at a speed of 40 meters/second. the duration of the collision is 8.0 × 10-3 seconds. the ball moves off with a speed of 50 meters/second in the opposite direction. what is the value of the force?

1687.5 N

Explanation:

From the second law of motion given by Newton, Force is the rate change of momentum.

Mass of the baseball, m = 0.15 kg

Initial velocity, (negative because direction of initial velocity is opposite to the final velocity)

Final velocity,

The duration of collision,

Force,

Hence, the value of force is 1687.5 N.

260 miles per hour

explanation:

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.