1. Is the force needed to stretch a molecule along the x-direction given by kT(xlnZ)T or by its negative? Explain. For \#2 and \#3, you measure the force needed to stretch a polymer and find it to be well-described by Hooke's Law F=x, where is a positive constant. Note that F is the force you exert on the polymer in the x-direction ( F is the force exerted by the polymer on you)