A 2.58 g particle is moving at 2.51 m/s toward a stationary 6.53 g particle. With what speed does the heavier particle approach the center of mass of the two particles

Given that,

Mass of particle 1, m₁ = 2.58 g = 0.00258 kg

Speed of particle 1, v₁ = 2.51 m/s

Mass of particle 2, m₂ = 6.53 g = 0.00653 kg

Speed of particle 2 = 0 (at rest)

To find,

The speed of centre of mass of the two particles.

Solution,

The formula for the centre of mass of the system is givn by :

So, the speed of the centre of mass is 0.71 m/s.

what best describes physical development during adolescence is the development of secondary sex characteristics happens at a rate unique to each individual.

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.