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College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000

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Section
BuyFindarrow_forward

College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000
Textbook Problem

A layer of oil 1.50 mm thick is placed between two microscope slides. Researchers find that a force of

5.50 × 10 4 N is required to glide one over the other at a speed of 1.00 cm/s when their contact area is 6.00 cm2. What is the oil's viscosity? What type of oil might it be?

To determine
The viscosity between the layers of given oil and the type of oil.
Explanation

Given:

Distance between layers = 1.5 mm => r = 0.15 cm

Tangential force F= 5.50 × 104N

Velocity, v = 1.00 cm/s 

Area, A= 6.00 cm2

Formula used:

Coefficient of viscosity of the oil is given as,

  η=FrAv

Calculation:

On substituting t

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