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Answer:

The value is [tex]m_2 = 2.46 \ kg[/tex]

Explanation:

From the question we are told that

    The volume of the tank  is  [tex]V = 0.57 \ m^3[/tex]

    The mass of the Argon it contains is  [tex]m = 4 \ kg[/tex]

     The initial pressure on of the gas is  [tex]P_1 = 450 kPa = 450 *10^{3} \ Pa[/tex]

     The initial  temperature is  [tex]T_1 = 30^oC = 30 + 273 = 303 \ K[/tex]

     The  new pressure inside the tank is  [tex]P_2 = 200 \ kPa = 200 *10^{3} \ Pa[/tex]

Gnerally given that the  Argon remaining inside the tank has undergone a reversible, adiabatic process, then the final temperature of the Argon gas is mathematically represented as

      [tex]T_2 = T_1 * [\frac{P_2}{P_1} ]^{ \frac{(k - 1 )}{k} }[/tex]

Here k is the specific heat ratio of Argon with value [tex]k = 1.667[/tex]

So

         [tex]T_2 = 303 * [\frac{200}{450} ]^{ \frac{(1.667- 1 )}{1.667} }[/tex]

=>      [tex]T_2 = 219 \ K[/tex]

Generally from the ideal gas equation

        [tex]PV = mRT_2[/tex]

 So

      [tex]\frac{P_1V}{P_2V} =\frac{ m_1 * R * T_1 }{ m_2 * R * T_2}[/tex]

Here R is the gas constant with value  [tex]R = 8.314 \J \ K^{-1}\ mol^{-1}[/tex]

=>    [tex]m_2 = \frac{P_2 * T_1 }{ P_1 * T_2 } * m_1[/tex]

=>    [tex]m_2 = \frac{200 * 303 }{ 450 * 219 } * 4[/tex]

=>    [tex]m_2 = 2.46 \ kg[/tex]

Answer:

The strength of the gravitational force between two objects depends on two factors, mass and distance. the force of gravity the masses exert on each other. If one of the masses is doubled, the force of gravity between the objects is doubled. increases, the force of gravity decreases

Answer:

sources of energy

Answer:

energy

Explanation:

hope this is the right answer

Answer:

The plasma membrane is composed of a bilayer of phospholipids, with their hydrophobic, fatty acid tails in contact with each other. ... Carbohydrates are attached to some of the proteins and lipids on the outward-facing surface of the membrane. These form complexes that function to identify the cell to other cells.

Explanation:

Hope it answered you plz mark as Brainlist

Answer:

The smallest part of the elements which contains matters in them are atoms :)

Answer:

[tex] 3.278 \times {10}^{6} [/tex]

Answer:

This process is known as static electricity

Explanation:

When balloon is rubbed on the wool , a negative charge is usually formed. When the balloon is then held over—but not touching—some bits of paper, some of the bits jump up to the balloon. The bits which jump up to the balloon are positive charged and we know that unlike charges attract.

This process explains static electricity which is when the charges on a material are not in a balanced state.

Answer:

Newton is the SI unit of force

Explanation:

A force of 1 Newton is said to be applied when an object of 1kg mass is transferred into motion at 1m/s.

The Newton is the force that accelerates 1 kilogram of mass at the rate of 1 meter per second^2.

In SI base units, 1N = 1 kg-m/s^2 .

Answer:

25.021 sec

Explanation:

v=d/t

-2.33= - 58.3/t

t= - 58.3/-2.33

t=25.021 sec

Answer:

The two solids in the right boxes

Explanation:

The two solids in the right boxes will most likely have the lowest boiling point and this can be inferred from their molecular configuration.

Answer: Sad y’all have holiday homework

Force = Mass . Accelaration

f=ma

force is directly proportional to mass and accelaration

therefore when mass of the object is doubled, the accelaration would be halved

since

a=f/m

Answer:

C

Explanation:

b is 55 miles per hour south  or 55mph[South]

the important part to understand is that velocity is a vector meaning it also has to have a direction, in this case south. That is why a (2m/s) is not a velocity, however 2m/s is a speed.

Answer:

25 m/s

Explanation:

Formula of acceleration is:

[tex]a=\frac{v-u}{t} \\[/tex]

where,

v is the final velocity

u is the initial velocity

a is the acceleration and

t is the time

so plugging in the values we get,

[tex]a=\frac{v-u}{t} \\\\5=\frac{v-10}{3} \\\\15=v-10\\15+10=v\\v=25\ m/s\\[/tex]

Answer:

t = 0.75 seconds

Explanation:

Given that,

The initial speed of a ball, u = 7.5 m/s

We need to find the time taken by the ball to reach the maximum height. Let t is the time taken.

At maximum height, its final speed, v = 0 and it will move under the action of gravity.

Using the equation of motion to find t.

[tex]v=u+at[/tex]

Use a = -g

[tex]v=u-gt\\\\t=\dfrac{u}{g}\\\\t=\dfrac{7.5}{10}\\\\t=0.75\ s[/tex]

Hence, the ball will take 0.75 seconds to reach the maximum height.

Answer: All forms of distraction.

Answer:

Explanation:

The most common type of igneous rock making up the Hawaiian island chain is Mafic rock. Furthermore, the most common type of Mafic rock is basalt.

Answer:

Extrusive ‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎

Answer:

D) Medical School

Explanation:

Edge 2021

Answer:

Endocytosis and exocytosis are both forms of active transport. Endocytosis is where materials enter the cell and exocytosis is where materials exit the cell.

Answer:

5

Explanation:

62

Explanation:

Molecular motion is defined as the movement of constituent particles or molecules in a certain direction. The molecular motions are affected by heat and temperature. This is because the temperature is the measurement of the average kinetic energy of the molecules and represents the motion of molecules.

Answer:

Answer:

The amount of power will be increased.

Explanation:

If the work remains constant but the time is reduced the power increases. Since power is defined as the relationship between work overtime. By means of the following equation, we can see this relationship.

[tex]P=W/t[/tex]

where:

P = power [Watts]

W = work [J] (units of joules)

t = time [s]

Let's assume with an example the above written.

If we have an electric motor that exerts a work of 950 [J], and the time used is 5 [s], the power is:

[tex]P = 950/5\\P = 190 [W][/tex]

Now if we want to accelerate the work done and use 2 seconds for the time, we will have:

[tex]P=950/2\\P=475 [W][/tex]

We want to see how maintaining the work constant but reducing the time in which it occurs affects the power. We will see that the power increases.

We define power as the amount of work done per unit of time.

So we can compute power as the quotient between the work done and the time in which it is done.

So, if we reduce the time in which the work is done, then the denominator is smaller, thus, the power will be larger.

This means that maintaining the work constant, and reducing the time in which it is done, increases the amount of power exerted.

If you want to learn more, you can read:

https://brainly.com/question/3854047

Answer:

P = 45 [kW]

Explanation:

We must find the difference in kinetic energy during the 20 seconds.

[tex]D_{kE}=2.5-1.6\\D_{kE}=0.9[MJ][/tex]

Power is defined as the relationship between energy over time.

[tex]P=D_{kE}/t\\P=0.9/20\\P=0.045[MW] or 45 [kW][/tex]

Answer:

Possiable answer by edge:

The shape of a river’s stream bed affects the speed and eroding power of a river by influencing the amount of friction between the water flowing through the river and the stream bed below. Friction is the force that opposes the motion of one surface as it moves across another surface. In a river, there is friction between the flowing water and the stream bed beneath it. Where a river is deep, less water comes into contact with the stream bed, so there is less friction. The reduced friction means there is less opposition to the water’s motion, so the river flows at a greater speed and has more kinetic energy for erosion. On the other hand, where a river is shallow, more water comes into contact with the stream bed, so there is more friction. The increased friction means there is more opposition to the water’s motion, so the river flows at a lesser speed and has less kinetic energy for erosion. Also, the roughness of a stream bed covered with boulders and other obstacles causes the water to flow through the river in a turbulent fashion. This could cause the river to move slower in some cases or erode more in other cases.

Explanation:

summary of answer:

influencing the amount of friction between the water flowing through the river and the stream bed below.

Answer:

A) a nerve cells long extensions enable it to transmit electrical impulses from one body part to another

B) the sheet like organization of epithelial cells enables them to protect underlying cells

C) the alignment of contractile proteins within muscle cells enables them to contract, pulling closer together the structures to which they attach

Explanation:

Answer:

100x4=400 kilometers

Explanation:

: )

Answer:

100÷4=25

Explanation:

you would devide

Answer:

-1/6 im sure to this answer

Explanation:

mark brainliest

Answer:

-1/6

Explanation:

pick her as the brainliest

Answer:

Jupiter does not have changing seasons like the Earth, but instead is believed to have a constantly stormy atmosphere. This is partly due to its tilt, which is only 3 degrees. The planet has a very turbulent atmosphere and is believed to have a lot of long-term storms.

So the answer is  A : There are no significant seasonal changes.

Explanation: