A list is sorted in ascending order if it is empty or each item except the last one is less than or equal to its successor. a. True
b. False

(because i need 20 chars)

i think the answer is a or d

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.