You measure the viscosity of a fluid sample in a cup-and-bob viscometer. The radius of the cup is 2 in. and that of the bob is 1.75 in., and the length of the bob is 3 in. At a speed of 10 rpm, the...

You measure the viscosity of a fluid sample in a cup-and-bob viscometer. The radius of the cup is 2 in. and that of the bob is 1.75 in., and the length of the bob is 3 in. At a speed of 10 rpm, the measured torque is 500 dyn cm, and at 50 rpm it is 1200 dyn cm. What is the viscosity of the fluid? What can you deduce about the properties of the fluid?