A $4"4^{\text{'}\text{'}}$ wood beam is 'built up$\text{'}$ using screws to attach a $2"4"$ wood member as shown in the figure below. The vertical loads cause a shear force, $V,$ equal to $360$ #$.$ Find the shear flow, $q,$ along the interface of the two boards, and find the spacing, $s,$ of the screws along the length of the board. Each screw can carry $400$ # of the horizontal shearing load present along the interface. Remember, $q$ has units of pounds of shear force per inch of beam length, and it must be carried by the screws so the boards will not separate. Finally, what happens to the spacing if instead of one screw at each location, I put $2$ screws side$-$by$-$side at each screw location?