A raindrop was 18meters above the ground, falling straight down at a constant velocity. It took the raindrop 3seconds to fall half the distance to the ground. What was the raindrop's velocity?

dynamic equilibrium is the answer.

answer; 4 electrons;

rosa was looking for patterns to predict the products of chemical reactions. she recorded three similar decomposition reactions in the table.she should record 2licl + 3o2.

in the last row of the table. it is the thermal decomposition of chlorate lithium, hence, she should record these products as: lithium chloride ( 2licl ) and oxygen ( 3o2 )   2 > 2 licl + 3o2.