Equilibrium occurs when : answers:
the net force on the object is zero.
all the forces acting on an object are balanced.
the sum of the +x forces on an object equals the sum of the âx forces.
the sum of the upward forces equals the sum of the downward forces.

All are correct.

Explanation:

The equilibrium of an object occurs when:

1. The net force on the object is zero: When the number of forces acting on an object and the sum of all the forces is zero, then we say that the net force acting on the object is zero. It means that the net acceleration of the object is zero, it means the object is at rest or moving with constant velocity.

2. All forces acting on an object are balanced: When a number of forces acting on the object and the net force is zero it means all the forces are balanced. So, that the object has either zero velocity or moving with constant velocity.

3. The sum of +X forces on an object equals the sum of the - x forces: As the forces in + X axis direction is equal to the forces in - X axis direction, it means again the net force on the object is zero.

4. The sum of upward forces equal to the sum of downward forces: As the sum of forces in upwards direction is equal to the sum of forces in downward direction, it means the net force on the object is zero..

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.

an energy transformation flow diagram is shown

where is it ?