Consider the free-body diagram. based on the net forces illustrated here, what can you say about the acceleration of the object? a. the object is moving at a constant speed. b. the object is accelerating in an upward direction. c. the object is accelerating down. d. the acceleration equals 0.

I can say anything I want, but Choice-C is the only correct statement on this list.

By the way . . . There is only one "net force" acting on the object in this picture.  It's a force of 120N pointing down.  That's why the object is accelerating down.

a and c

c is 100% but i am confused in a

when heated, the valance electrons increased their speed and transferred the heat from electron to electron.   i just took the test.