An object's position in meters and motion in meters per second can be described by 2 = -18 – 3+ - +2 during the time interval 0 Which of the following statements is the best description of the object's motion?

.) the observation by semmelweis that more mothers died of childbed fever when their doctors also worked in the morgue

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.

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide

helium

oxygen

neon

sodium