Question
Asked Dec 23, 2019
22 views

A thin 1.5-mm coating of glycerine has been placed between two microscope slides of width 1.0 cm and length 4.0 cm. Find the force required to pull one of the microscope slides at a constant speed of 0.30 m/s relative to the other slide.

check_circle

Expert Answer

Step 1

Given:

Distance between two microscopic slides (d) = 1.5 mm = 1.5×10-3 m

Dynamic viscosity (η) = 1.5 Ns/m2.

Width of slides (b) = 1.0 cm

Length of slides (l) = 4.0 cm

Speed (v) = 0.3 m/s

Step 2

Area of slides is,

help_outline

Image Transcriptionclose

A = bx1 1 = (1×10³ ×10² m) m)x(4 m². A = 4× 10

fullscreen
Step 3

Force required to pul...

help_outline

Image Transcriptionclose

NAv (1.5 Ns/m² )× 4×10×0.3 1.5 x 10 F = 0.12 N

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in
SciencePhysics

Fluid Mechanics

Related Physics Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: A certain superconducting magnet in the form of a solenoidof length 0.50 m can generate a magnetic f...

A: The magnetic field in a solenoid is

question_answer

Q: An electron moves in a circular path perpendicular to a magneticfield of magnitude 0.235 T. If the k...

A: (a) The velocity of the electron is

question_answer

Q: A 300-turn solenoid with a length of 20.0 cm and a radiusof 1.50 cm carries a current of 2.00 A. A s...

A: a). Formula for initial magnetic field in the solenoid,

question_answer

Q: A magnetic field of magnitude 0.300 T is oriented perpendicularto the plane of a circular loop. (a) ...

A: In the vibrations of the guitar string, longitudinal waves will form. Sound is a wave. Waves can hav...

question_answer

Q: Why is white wash sometimes applied to the glass of florists greenhouses in the summer?

A: A greenhouse traps heat inside it. Sunlight entering through the glass gets reflected inside the gre...

question_answer

Q: Why does the pupil of eye appear black?

A: The pupil is situated at the center of the iris of the eye. Pupil appears black because the entered ...

question_answer

Q: Suppose a distant world with surface gravity of 7.44 m/s2 has an atmospheric pressure of 8.04 x 104 ...

A: Part A:

question_answer

Q: Consider the systempictured in Figure P19.31.A 15 - cm length of conductorof mass 15 g, free tomove ...

A: a)The magnetic force will act on the horizontal wire. The magnetic force acts upward with equal magn...

question_answer

Q: A piece of aluminum is dropped vertically downwardbetween the poles of an electromagnet. Does the ma...

A: Click to see the answer