1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
topjm [15]
3 years ago
10

explain the sequence of events that happens when this fluid cools down. be sure to focus on what happen to the molecules and to

the fluid in general . five event should be included in your answer
Physics
1 answer:
Paraphin [41]3 years ago
4 0

Answer:

Check below for the explanations required

Explanation:

The following processes/events take place in the cooling of a fluid.

  • A reduction in the kinetic energy of the molecules of the fluid
  • The molecular speed reduces ( i.e.there will be a reduction in the speed at which the molecules move)
  • The cohesive force between the molecules will increase ( i.e the molecules will no longer be drifted apart, they will now move closer to each other
  • The temperature of the fluid reduces as it cools down
  • There will be an increase in density

You might be interested in
A block of mass 1.3 kg is resting at the base of a frictionless ramp. A bullet of mass 50 g is traveling parallel to the ramp su
aleksandrvk [35]

Answer:

s = 2.65 m

Explanation:

given,

mass of block,M = 1.3 Kg

mass of bullet,m = 50 g = 0.05 Kg

speed of bullet,u  = 250 m/s

speed of bullet after collision,v = 100 m/s

distance traveled by the block = ?

Assuming the angle of inclination of ramp equal to 40°

calculating the speed of the block

using conservation of momentum

M u' + m u = m v + M v'

initial speed of the block is equal to zero

0 + 0.05 Kg x 250 = 0.05 x 100 + 1.3 x v'

1.3 v' = 7.5

  v' = 5.77 m/s

now, calculation of acceleration

equation  the horizontal component

-mg sin θ = ma

  a = - g sin θ

  a = - 9.8 x sin 40°  

  a = -6.29 m/s²

using equation of motion for the calculation of distance moved by the block

v² = u² + 2 a s

0² = 5.77² + 2 x (-6.29) x s

12.58 s = 33.29

s = 2.65 m

hence, the distance moved by the block is equal to 2.65 m

3 0
3 years ago
a. What is the peak wavelength for AM0? What temperature T corresponds to this peak wavelength for a blackbody source? Assuming
atroni [7]

Answer:

A) T = 5510 K , B)   I = 5,226 10⁷ W / m² , C)   I₂ = 1128 W / m²

Explanation:

A) The mass of air is defined as the ratio between the shortest path that sunlight must pass to reach the planet's surface and the length of the beam, is called AM

      Am = 1 / cos θ

The AM0 value corresponds to solar radiation in the outer part of the Earth's atmosphere.

The peak of this emission is the peak that emitted from the sun

       λ = 526 nm

To find the temperature that corresponds to this emission we use the Wien displacement law

       λ T = 2,898 10⁻³

      T = 2,898 10⁻³ / 526 10⁻⁹

      T = 5510 K

i) The radiance on the surface of the sun is

           I = P / A

We can calculate the potency by Stefan's law, for a black body

         P = σ A e T⁴

         P / A = σ e T⁴

The σ constant is value 5,670 10⁻⁸ W / m²K⁴, we will assume that the Sun emits as a black body, so e = 1

            I = sig T⁴

            I = 5,670 10⁻⁸  5510⁴

            I = 5,226 10⁷ W / m²

ii) the irradiation at a distance of 1 ua (1,496 1011 m)

Let's use the relationship

           P = I A

           I₁ A₁ = I₂ A₂

           I₂ = I₁ A₁ / A₂

 

The area of ​​a sphere is

          A = 4π R²

Let's replace

         I₂ = I₁ (r₁ / r₂)²

  Index 1 corresponds to the sun and the index to Earth that is an astronomical unit

        r₁ = 6.96 10⁸m        (Sun radius)

        r₂ = 1,498 1011 m    (Earth-Sun distance)

Calculous

       I₂ = 5,226 10⁷ (6.96 10⁸ / 1,498 10¹¹)²

       I₂ = 1.1281 10³ W / m²

       I₂ = 1128 W / m²

8 0
3 years ago
Pleaseee someone help me TEST TOMORROW
zubka84 [21]
3.A

4.c


5. A

please name me brainliest
5 0
3 years ago
Why are we unable to work long without food
nataly862011 [7]

Answer:

Without food your not able to produce energy thats why you cannot work so long

7 0
3 years ago
How much work was done by a hot air balloon to lift up a 100 Newton to a height of 300 meters?
Monica [59]

So, the work was done by that hot air-balloon is <u>30,000 J or 30 kJ</u>.

<h3>Introduction</h3>

Hi ! In this question, I will help you. <u>Work is the amount of force exerted to cause an object to move a certain distance from its starting point</u>. In physics, the amount of work will be proportional to the increase in force and increase in displacement. Amount of work can be calculated by this equation :

\boxed{\sf{\bold{W = F \times s}}}

With the following condition :

  • W = work (J)
  • F = force (N)
  • s = shift or displacement (m)

Now, the s (displacement) can be written as ∆h (altitude change) because the object move to vertical line. The formula can also be changed to:

\boxed{\sf{\bold{W = F \times \Delta h}}}

With the following condition :

  • W = work (J)
  • F = force (N)
  • \sf{\Delta h} = change of altitude (m)

If an object has mass, then the object will also be affected by gravity. Always remember that F = m × g. So that :

\sf{W = F \times \Delta h}

\boxed{\sf{\bold{W = m \times g \times \Delta h}}}

With the following condition :

  • W = work (J)
  • m = mass of the object (kg)
  • g = acceleration of the gravity (m/s²)
  • \sf{\Delta h} = change of altitude (m)

<h3>Problem Solving</h3>

We know that :

  • F = force = 100 N
  • \sf{\Delta h} = change of altitude 300 m

What was asked :

  • W = work = ... J

Step by step :

\sf{W = F \times \Delta h}

\sf{W = 100 \times 300}

\boxed{\sf{W = 30,000 \: J = 30 \: kJ}}

<h3>Conclusion</h3>

So, the work was done by that hot air-balloon is 30,000 J or 30 kJ.

<h3>See More :</h3>
  • Work that he had done to lift object brainly.com/question/26341717
  • Converting work to potential energy brainly.com/question/26487284
5 0
3 years ago
Other questions:
  • Which of the following is not a result of air pollution?
    5·2 answers
  • Based on the Punnett square, what percentage of offspring would have genotype YY?
    7·1 answer
  • After the change of state occurs, the temperature _____________.
    9·1 answer
  • It is important to stretch all your muscle groups before your exercise program, even those you won’t be using that day.
    7·2 answers
  • An object goes from a speed of 9m/s to a total stop in 3 s. what is the object's acceleration
    10·1 answer
  • What are the factors that affect the efficiency of a simple machine?​
    10·1 answer
  • Suppose an astronomer observes a binary star system where the stars are separated by 2.0 AU , and they have an orbital period of
    11·1 answer
  • I don’t know what to do help me
    6·1 answer
  • Why does heat flows from hot body to cold body?
    13·1 answer
  • According to max weber, flaunting of one’s wealth to show one’s status is called?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!