A person begins at Point A in the diagram below. He then walks towards Point B, then Point C then to Point D. What
is the distance and displacement that the person travels
over this journey?
D
с
t =
6 min
10 min
3 min
0 min
1
+
-10
0
10
40
50
20 30
Position (yd

A50.0-n box is sliding on a rough horizontal floor, and the only horizontal force acting on it is friction. you observe that at one instant the box is sliding to the right at and that it stops in 2.25 s with uniform acceleration. what magnitude force does friction exert on this box

Which of the following explains why it took so long for the public to accept the negative health effects of smoking? a)people were waiting for counter reasons, and those were presented. b)scientists had not completely finalized their results, which took 30 years. c)cigarettes were cheaply available and media channels were very inefficient. d)cigarette manufacturers were trying hard to bring an alternative into the market

What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?