Alice is farsighted and cannot see objects clearly that are closer to her eye than 80.0 cm. what is the refractive power of the contact lenses that will enable her to comfortably see objects at a distance of 25.0 cm from her eyes?

The refractive power of the contact lenses is 2.75 D

Explanation:

Given that,

Image distance v = -80.0 cm

Object distance u= -25 cm

We need to calculate the refractive power

Using lens's formula

Where, v = Image distance

u = Object distance

The refractive power of the contact lenses

Hence, The refractive power of the contact lenses is 2.75 D.

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.

if the person is shown to have +90n, then ans is -10n.

if the person is shown to have -90n, then ans is +10n.