12.4 Exercise 17

A layer of oil 1.50 mm thick is placed between two microscope slides. Researchers find that a force of $5 . \text{50} \times \text{10}^{- 4} \text{N}$ is required to glide one over the other at a speed of 1.00 cm/s when their contact area is $6 . \text{00} \text{cm}^{2}$. What is the oil’s viscosity? What type of oil might it be?