True / false
.forwarding is one of the major causes of stalls in pipeline architectures.

True

Explanation: Data forwarding is the major cause for the stalls in pipeline architecture.It basically creates exploitation in the sequence of pipeline instruction and thus the present instruction getting executed gets stopped and wait for the result of the previous instruction that is to be finished.

Data forwarding is also known as the operand forward because operand gets forwarded in the form of data. So, the given statement in the question is true

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.