Answer from cs61c-ep (Hao Wen Vivian Chong 15826235) for Question 1
The circuit might not behave as expected - since there is no delay in the wire, the first flip-flop might be between changing values when the flip-flop that is connected to it is trying to grab its input signal. Because of this, we're not sure what might show up in the second flip-flop. If we add a small delay to assure that the value inside the first flip-flop is stable when the second one grabs the Q from the first flip-flop.