Research suggests that depriving people of sleep can cause emotional overreactions to threatening situations. a. nrem 1 b. slow-wave c. paradoxical d. nrem 2

Research suggests that depriving people of NREM sleep can cause emotional overreactions to threatening situations. Non-rapid eye movement sleep is combined sleep steps which are 1–3, earlier identified as stages 1–4.

Rapid eye movement sleep is not involved. There are different electro encephalographic and other features observed in every step. There is normally light or no eye movement throughout these stages.  

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.

energy can be converted from one form to another, but it cannot be created or destroyed in ordinary chemical or physical means. do not understand what you are asking but hope this