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3 years ago

What are the five basic postulates of kinetic-molecular theory?

Physics

1 answer:

lesantik [10]3 years ago

8 0

Explanation:

The five basic postulate of kinetic molecular theory includes:

1) All gases consist of large amount and numbers of tiny particles that are far apart from each other and also relative to their size.

2) The collisions between gas particles and gas particles against container walls is refer to as elastic collision.

3) All gas particles are in a continuous random and rapid motion. They possess kinetic energy which is energy of motion.

4) There are no attractive force between gas particles.

5) The temperature of a gas depends on the average kinetic energy of the gas particle.

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What is the Potential Energy of a roller coaster if it has a velocity of 35 m/s and a mass of 2000 kg and is at a height of 200

Vlada [557]

Answer:

Explanation:

It cant be A or D, meaning your left with B and C. there cant be an answer in the 1000's place eather

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3 years ago

after the car leaves the platform , gravity causes it to accelerate downward at a rate of 9.8 m/s2. what is the gravitational fo

alexandr1967 [171]

The gravitational force on the car is the force popularly known
as the car's "weight". Its magnitude is

(9.8 m/s²) times (the car's mass, in kilograms) .

The unit of this quantity is [newton] .

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3 years ago

Please answer the following questions about uniform circular motion.?

Afina-wow [57]

Answer:

a) The planet experiences a centripetal force towards its star

b) The universal attractive force (Gravitational force)

c)None of these choices are true.

Explanation:

This problem raise several claims, let's review some aspects of circular motion

F = m a

the centripetal acceleration is

a = v² / r

where v is the speed (modulus of velocity) that is constant and r is the radius

The direction of the acceleration is perpendicular to the motion.

Let's review the different claims

Part a) the orbital velocity is constant

The correct statement is: The planet experiences a centripetal force towards its star

Part b) what is the centripetal force

The correct statement: The universal attractive force (Gravitational force)

Part c) which statement is true

1) False. There can be no tangential force

2) False. There is a centripetal force that creates the movement, but there is no centrifugal force because the system is accelerated and there is no tangential force because the movement is circular.

3) False. There is no tangential force

4) True none is true

5) False. There is a force because movement has acceleration

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3 years ago

Membrane walls of living cells have surprisingly large electric fields across them due to separation of ions. (Membranes are dis

Arturiano [62]

Answer:

Voltage, V = 0.0524 volts

Explanation:

Thickness of the membrane, $d=7.95\ nm=7.95\times 10^{-9}\ m$

Electric field strength, $E=6.6\ MV/m=6.6\times 10^6\ V/m$

We need to find the voltage across it. The relationship between the voltage, electric field and the distance is given by :

$V=E\times d$

$V=6.6\times 10^6\ V/m\times 7.95\times 10^{-9}$

V = 0.0524 volts

So, the voltage across the thick membrane is 0.0524 volts. Hence, this is the required solution.

7 0

3 years ago

Which type of wave interaction is shown in the photo?

julia-pushkina [17]

The wave interaction that is shown in the photo is refraction as light moves from air to water.

<h3>What is refraction?</h3>

Refraction refers to the change in the frequency of a wave and the direction of the wave as it moves from one medium to another. We know that waves makes a body under water to look slightly different than when it is in air.

Thus, the wave interaction that is shown in the photo is refraction as light moves from air to water.

Learn more about refraction:brainly.com/question/14760207

#SPJ1

7 0

2 years ago