Question

What is mean free path? Derive an expression for it.

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Science
Physics

Thermodynamics

Related Physics Q&A

Find answers to questions asked by students like you.

Q: What is Bernoulli's principle? Write its formula and also derive it.

A: Bernoulli’s principle will apply for fluids in an ideal state.The pressure and density of fluids are...

Q: A kangaroo jumps straight up to a vertical height of 1.15 m How long was it in the air before return...

A: From kinematics,

Q: Four acrobats of mass 68.0 kg, 68.0 kg, 62.0 kg, and 55.0 kg form a human tower, with each acrobat s...

A: Consider the masses of the four acrobats be m1, m2, m3, and m4, and the area of a shoe of the acroba...

Q: The two thigh bones (femurs) each of cross-sectional area 10cm2, support the upper part of a human b...

A: The expression for the average pressure sustained by the femurs is

Q: A new quilt is warmer than old one. Why?

A: The working process of quilt is to keep warm the body. Quilt act like a insulator it keep the air wa...

Q: A delivery truck travels 20 blocks north, 14 blocks east, and 26 blocks south. What is its final dis...

A: A delivery truck travels 20 blocks north, and 26 blocks south. So the truck travels 6 blocks south. ...

Q: Why is invar used in making a clock pendulum?

A: Invar is an alloy which has a very small linear coefficient of expansion.Hence its length does not c...

Q: Question 6.1a: A toy car having mass m = 1.25 kg collides inelastically with a toy train of mass M =...

A: The given values are,

Q: Brewed coffee is often too hot to drink right away. You can cool it with an ice cube, but this dilut...

A: From heat transfer the expression is,

Q: Hydrostatic pressure is a scalar quantity even though pressure is force divided by area.

A: According to Pascal’s law, On a confined incompressible fluid the pressure exerted anywhere is trans...

Q: Describe one difference between a rubber band and a spring as a mechanism for storing elastic potent...

A: Step 1The rubber band is deformed much more than the spring. The spring is present as a helical stru...

Q: What kind of thermal conductivity and specific heat requirements would you specify for cooking utens...

A: For cooking utensils, it should have low specific heat. So it can easily attain the temperature of t...

Q: What is Huygens Principle?

A: Huygen’s principle describes how a wave is propagated.

Q: Why do telephone wires hang higher in winter than in summer?

A: The telephone wires hang higher in winter than in summer because the cores of overhead wires are mad...

Q: What are the tricks to setting up coordinate systems and assigning signs to variables in Mechanics p...

A: In mechanic’s problems, there are some standard assumption takes to simplify the solution.

Q: It is part 2

A: Given:Pair of three different objects are rubbed with each other,Pair of handPair of uncharged Styro...

Q: Can reflection result in plane polarised light if the light is incident on the interface from the si...

A: when the light is incident on the given surface a part of it will transmitted and reflected ( the co...

Q: We substitute the known values into the conservation of momentum equation MVi + mvi = MVf + mvf to...

A: By using the conservation of momentum,

Q: A runner in a marathon passes the 7-mile mark at 1 o'clock and the 18-mile mark at 5 o'clock. What i...

A: Click to see the answer

Q: Given a sample of 1cm3 of hydrogen and 1cm3 of oxygen both at NTP. Which sample has large number of ...

A: Avogadro hypothesis says that under similar conditions of temperature and pressure volume of all gas...

Q: Explain why a fluid flowing out of a small hole in a vessel results in a backward thrust on the vess...

A: The area through which water is flowing out of the hole in the vessel is small. According to equatio...

Q: A capillary tube of inner diameter 0.4mm is dipped in a liquid of relative density 13.6, surface ten...

A: Given:Diameter of the tube = 0.4 mmRadius, r = 0.2mm = 0.2 × 10-3 m = 2 × 10-4 mSurface tension, T =...

Q: A toy car having mass  m = 1.35 kg  collides inelastically with a toy train of mass  M = 3.85 kg.  B...

A:  Given:Mass of a toy car, m = 1.35 kgMass of a toy train, M = 3.85 kgBefore collision:Velocity of to...

Q: Why are bottoms so that utensils for cooking food blackened?

A: Why are the bottoms of cooking utensils are blackened?Black color absorbs maximum amount of heat inc...

Q: State and explain Faraday's Law.

A: Faraday’s law of electromagnetic induction which is also known as Faraday’s law is the basic law of ...

Q: Is it a cause of worry when your body temperature is 310K?

A: The average body temperature of human being ranges from 36.5°C to 37.5°C. Any temperature below 35°C...

Q: In Davy's safety lamp a copper gauze is used. Why?

A: Davy’s safety lamp was used in flammable environment such as coal mines. The lamp consists of a gaug...

Q: Two dimensional dynamics often involves solving for two unknown quantities in two separate equations...

A: Click to see the answer

Q: Does it matter if one uses gauge instead of absolute pressures in applying Bernoulli's equation? Exp...

A: No ,it does not matter if one uses gauge instead of absolute pressure in applying Bernoulli's equati...

Q: A particle is projected from ground for maximum range 80m. Time of flight for this projectile is

A: The maximum range of this projectile (R),

Q: What does tea in thermos flask (Dewar flask) remain hot for long time?

A: A thermal or Dewar flask is a storage vessel that provides insulation to its contents from the surro...

Q: A tank containing water has an orifice in one vertical side. If the centre of the orifice is 10m bel...

A: According to Bernoulli’s equation,

Q: Task III:A car is parked on a steep incline overlooking the ocean, where the incline makes an angle ...

A: Click to see the answer

Q: A,B and C are three non-collinear, non-coplanar vectors. What can you say about direction of Ax(BxC)...

A: Let the cross product of

Q: Janet is skating at the ice rink with her little sister Sarah who is initially standing at rest on t...

A: Write the expression for conservation of momentum

Q: You are told that in a thundercloud, a 0.75 g raindrop can acquire a charge of 1.1 mC. Assume that t...

A: Acceleration is,

Q: Thickness of ice on a lake is 5cm and the temperature of air -20 degree C. If the rate of cooling of...

A: Step 1It is given that thickness, temperature, rate of cooling and area are respectively

Q: What is uniform circular motion and non uniform circular motion?

A: Uniform circular motion at a constant velocity can be defined as the motion of an object in a circle...

Q: Eplain work, power and energy. Also state an example for each explanation and give its S.I unit.

A: Work: When an object is subjected to a force and the object gets displaced in the direction of the f...

Q: Why do climates near the coasts tend to be more moderate than in the middle of continent?

A: Coastal areas will have moderate temperature than an inland area because of the heat capacity of the...

Q: What is tube of flow?

A: Consider the flow of a fluid having parallel layers. The flow of the fluid in the parallel layers de...