Each croquet ball in a set has a mass of 0.50 kg. the green ball travels at 10.5 m/s and strikes a stationary red ball. if the green ball stops moving, what is the final speed of the red ball after the collision?

Explanation:

It is given that,

Mass of both green and red ball, m₁ = m₂ = 0.5 kg

Initial speed of green ball, u₁ = 10.5 m/s

Initial speed of red ball, u₂ = 0 ( rest )

Final speed of green ball, v₁ = 0 (it stops)

We need to find the final speed of the red ball after the collision. Lt it is equal to v₂. Using the conservation of momentum as :

Since, m₁ = m₂

So, the final speed of red ball after the collision is 10.5 m/s. Hence, this is the required solution.                                      

a charge 3q is at the origin, and a charge −2q is on the positive x axis at x=a. part a where on the x-axis would you place a third charge so it would experience no net electric force? enter an expression for the exact answer, which will involve a square-root sign. (do not enter an approximate decimal answer.)

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.