Replace the three forces acting on the plate by a wrench. Suppose that FA$=\{600$i$\}$N

$,$ FB$=\{450$k$\}$N

$,$ and FC$=\{200$j$\}$N$.$ Part $1$ Determine the magnitude of the force of the wrench. Part $2$ Determine the couple moment of the wrench.

Express your answer to three significant figures and include the appropriate units. Enter positive value if the sense of direction of the couple moment is the same as that of the resultant force and negative value if the sense of direction of the couple moment is opposite to that of the resultant force. Part $3$ Specify the point P$($x$,$y$)$

where the wrench intersects the plate.

$.$