A possible design for a parallel plate viscometer consists of a vertical box rectangular with a plate centered inside. The fluid to be analyzed is located within the box and experimentally the force necessary to move the plate at a constant speed is measured. In The figure shows this viscometer. Calculate the viscosity of the fluid in cp for the following conditions: $1)-$The weight of the plate is negligible. $2)-$The plate is located equidistant between the walls. $3)-$The distance between the wall and the plate is $0\mathrm{.}5$ cm$.4)-$The area of the plate immersed in the instant of reading is $75$ cm$2$ for each side. $5)-$ When the plate moves at a speed of $1\mathrm{.}2$ cm$/$s the total force required is $5\mathrm{.}6$x$10-4$ N