As the european powers grew more industrialized, their colonies became very important as sources of a)slave labor. b)raw materials. c)new inventions. d)military prestige.

only #2 represents an object at rest on a table.

in #1, there is no normal force due to the table; the object is accelerating downward.

in #3, the vertical forces are not balanced; the object is accelerating downward.

in #4, neither the vertical nor the horizontal forces are balanced. the object is accelerating upwards and to the right.