6 Let C be the counterclockwise planar circle with center at the origin and radius r>0 Without computing them, determine for the following vector field F whether the line integrals F⋅dr C ∫ are positive, negative, or zero and type P, N, or Z as appropriate x=rcosθ y=rsinθ dr=(dx,dy)=(−y,x)dθ A F=the radial vector field=xiyj (x,y)⋅(−y,x)dθ=0Jun 13, 12 · A ZnCrO layer grown on a Pt (111)/Al2O3 (0001) substrate exhibits a lattice displacementinduced ferroelectric behavior due to a modulation in the lattice translation symmetry The toptobottom Pt/ZnCrO/Pt structure shows asymmetric hysteresis loops in positive and negative voltage bias regions This is attributed to a change in the Schottky emission rate due toAnswer to The expression x *= i j / y; C Cf E Y High Resolution Stock Photography And Images Alamy "Y "ç Xj[J[