1) Design an experiment to test whether drinking alcohol influences people's tendency to become socially aggressive. Be sure to specify the methods of your experiment, your experimental hypothesis, your dependent, and independent variables, as well as your experimental and control conditions (i. e. experimental and control groups).
Identify any experimental procedures that would help to ensure the reliability (i. e. replicability) of your research.

(8%) problem 12. a bowling ball of mass mb 3 kg 's rolled down the lane with a velocity ofy-2/ m s lt strikes a single remaining pin mp 0.93 kg head on. after the collision the bowling ball has a velocity (in the same direction) of v2 1.1 m/s. = ▲ 33% part (a) write an expression for the velocity of pin in the horizontal direction after the impact, im ,, 33% part (b) what is the pins speed in ms? 33% part (c) assuming the coefficient of friction s μ,-0.1. how far in meters could the pin slide before stopping if it doesn't topple?