Self-concept helps us evaluate our strengths and weaknesses evaluate our individual worth reject negative feedback reject positive reinforcement

the independent variable, the one that is intentionally manipulated, is whether or not the car hits the barrier.

the dependent variable, the one that you measure the response in, is the distance that the washers travel.

what is the speed of a softball that travels 20m in 2secs

speed = 20/2 = 10 m/s

answera compound;