What does a speedometer measure? a. average speed b. acceleration c. speed d. velocity

A speedometer measure the instantaneous speed of a vehicle.

Option C

Explanation:

A speedometer is a gauge used in vehicles to measure their instantaneous speed. It is basically invented to measure the instantaneous speed of the vehicle such as cars. This is simply the ratio of the distance covered in a unit time.

Its cable gets powered by driveshaft and turned. The cable rotates the magnet at the same speed in the Speed Cup. The hair spring becomes tighter and limits the speed pan to prevent it from turning too much. As the speed cup runs, the arrow raises the dial up to show the vehicle speed.

i cant see the choices man

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.