An ideal gas, initially at a volume of 5.33333 L and pressure of 9 kPa, undergoes isothermal expansion until its volume is 8 L and its pressure is 6 kPa. Calculate the work done by the gas during this process. Answer in units of J.

Find the heat added to the gas during this process. Answer in units of J.​

Answer:

0.85 m/s²

Explanation:

Acceleration is change in velocity over change in time. In mathematically, it can be expressed as:

\(\displaystyle{\vec{a} = \dfrac{\Delta \vec{v}}{\Delta t} = \dfrac{\vec v_2 - \vec v_1}{t_2-t_1}}\)

Our final velocity is given to be 17 m/s in 20 seconds. Initial velocity is at starting point which is 0 m/s in 0 second. Therefore:

\(\displaystyle{\vec{a} = \dfrac{\Delta \vec{v}}{\Delta t} = \dfrac{17-0}{20-0}}\\\\\displaystyle{\vec{a} = \dfrac{\Delta \vec{v}}{\Delta t} = \dfrac{17}{20}}\\\\\displaystyle{\vec{a} = \dfrac{\Delta \vec{v}}{\Delta t} = 0.85 \ \, \sf{m/s^2}}\)

Therefore, the acceleration of a horse from starting point to 17 m/s in 20 seconds is 0.85 m/s²

Answer:

0.85 m/s^2

Explanation:

Acceleration = (final velocity - starting velocity) / time

Final velocity = 17

Starting velocity = 0

Time = 20

1. Substitute:

Acceleration = (starting velocity - final velocity) / time --> Acceleration = ( 17 - 0) / 20

2. Solve:

Acceleration = ( 17 - 0) / 20 -->

Acceleration = 0.85

Answer:

You weight would be doubled because gravitational force is doubled

2. Challenges:

a. Everyone’s body would have to adjust to the new weight and learn to walk again

b. Earth would be closer to the sun, so everything would be hotter on Earth

c. Flying airplanes and driving cars might no longer work at all (talk about how difficult this would make traveling)

3. Benefits:

a. Time would go by much slower so technically everyone would live longer

b. Balloons wouldn’t fly off anymore

4. You have to decide for yourself if you’d like it better or worse

Explanation:

Answer:

F = G M m / R^2

F1 = G M m / R1^2

F2 = 4 G M m / R2^2

F2 = 16 F1

Question

Which particles act together to make atoms behave as solids

Answer:

Electrons. Mutually repel elections of other atoms when they get close

Explanation:

A demonstration of the behavior of particles as solids, liquids and gases. Crystals, on the other hand, aren't at all haphazard. Particles are held together by forces of attraction. Protons (+) and Electrons (-) Which subatomic particles act together to make atoms behave as a solids because they are found buzzing around the nucleus.

The maximum angular speed of the ball is 2.12 rad/s. If the rope is shortened, the radius will decrease.

Part A:
To find the maximum angular speed of the ball, we need to first find the maximum centripetal force that the rope can provide before breaking. The centripetal force (Fc) is given by:
Fc = (mass x velocity^2) / radius
where mass = 0.57kg (mass of the tether ball), radius = 4.3m (length of the rope), and we need to solve for velocity.
We know that the tension in the rope (T) provides the centripetal force, so we can set Fc = T:
T = (0.57kg x velocity^2) / 4.3m
We also know that the maximum tension the rope can withstand is 11 N, so we can set T = 11 N and solve for velocity:
11 N = (0.57kg x velocity^2) / 4.3m
velocity^2 = (11 N x 4.3m) / 0.57kg
velocity^2 = 82.81
velocity = sqrt(82.81)
velocity = 9.1 m/s
Now that we have the velocity, we can find the maximum angular speed (ω) using the formula:
ω = velocity / radius
ω = 9.1 m/s / 4.3m
ω = 2.12 rad/s
Part B:
If the rope is shortened, the radius will decrease, which means the centripetal force required to keep the ball moving in a circle will also decrease.
Since the maximum tension the rope can withstand remains the same, this means that the maximum velocity and maximum angular speed will also decrease. Therefore, the maximum angular speed found in part A will decrease if the rope is shortened.

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Answer: Speed of light in air is more than speed of light in water, which means water is optically denser than air.

Answer:

There

Explanation:

A medium is denser when the speed of light gets reduced when light travels through that medium. When water travels through water, its speed gets reduced. Hence, it is a optically denser medium. Speed of light in air is more than speed of light in water, which means water is optically denser than air.

Answer:

A physical property is a characteristic of matter that is not associated with a change in its chemical composition.

Explanation:

A physical property is a characteristic of matter that is not associated with a change in its chemical composition. Familiar examples of physical properties include density, color, hardness, melting and boiling points, and electrical conductivity.

hope it helps! Have a fantastic day!

Answer: Physical properties include density, color, hardness, melting and boiling points, and electrical conductivity.

Explanation: Pretty self explanatory I think but I hope it helped.

Answer:

Compound-Complex sentence

Explanation:

compound-complex sentence is a type of sentence that is comprised of atleast two independent clauses also it is characterised by having one or more dependent clauses.

Among all types of sentences, compound-complex sentences are usually the most complicated as well as the longest. This is usually the point because it is made up of two sentence structures; compound and complex sentence structure.

An example of a compound complex sentence below;

Though Mike prefers watching high school films, he rented the latest spy thriller, and he enjoyed it very much.

Answer:

Both the initial and final substances are composed of atoms because all matter is composed of atoms. According to the law of conservation of matter, matter is neither created nor destroyed, so we must have the same number and kind of atoms after the chemical change as were present before the chemical change.

Explanation:

Answer:

The law of conservation of atoms is simple but it has a great affect. An atom cannot be destroyed by such a force. Matter/atoms can't be created by any means. An atom exits only by nature and not by force.

Hope this helped! Please mark brainliest! Have a great day!

Answer:

Increase is energy transferred

Explanation:

Option B is correct

If the standard free energy change for the following reaction is 474.4 kJ/mol. Then the equilibrium constant \(K_p\) for the reaction is \(3.58 * 10^{-28}\).

The relationship between the equilibrium constant and the standard free energy change must be used to determine the equilibrium constant \(K_p\) for the reaction:

ΔG° = -RT ln Kp

where ΔG° is the standard free energy change, R is the gas constant (8.314 J/(mol·K)), T is the temperature in Kelvin, and Kp is the equilibrium constant.

ΔG° = 474.4 kJ/mol × 1000 J/kJ = 474400 J/mol

Given the temperature is 298 K (25°C), we can substitute the known values into the equation and solve for \(K_p\):

\(474400 = -8.314 * 298 * ln (K_p)\)

\(ln(K_p)=-\frac{474400}{(8.314*298)}\)

\(ln(K_p)=-63.38\)

\(K_p=e^{(-63.38)\)

\(K_p = 3.58 * 10^{(-28)}\)

Hence, the equilibrium constant \(K_p\) for the reaction is \(3.58 * 10^{-28}\).

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The complete question is:

The standard free energy change for the following reaction is 474.4 kJ/mol. what is the equilibrium constant Kp for the reaction at 25°C?

\(N_2(g) + 3H_2 (g) < - - > 2NH_3 (g)\)

Answer:

the angle of incidence equals the angle of reflection

According to the law of reflection, the angle of incidence is equal to the angle of reflection.

What is Reflection ?

Reflection is the change of direction of the wave at the interface which separates two media. it get incident on the other media and get return to the same media is called as reflection. Common examples include the reflection of light, sound and water waves.

we can see that in the dark room when we incident light on the mirror, the direction of the light changes at the point of the incidence. in the scientific language we can say that light has reflected from the surface of the mirror. in this case  angle of incidence is always equal to angle of reflection. reflection is shown in the figure.

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Answer:

0.9m/s^2 (yours is 0.87, so choose that)

Explanation:

formula for centripetal acceleration:

v^2/r

to find v, we know that f=1/90s, and r=180m.

v=(2pir)/T

v=(2pi(180))/90

v=12.6m/s

now plug into a=v^2/r

a=(12.6)^2/180

a=0.9m/s^2

Answer:

hBdbdbdbdbbdbdvdbdksbsonalamspamalans

Answer:Property 1: Ultrasonic waves vibrate at a frequency greater than the audible range for humans (20 kilohertz).

Property 2: They have smaller wavelengths. As a result, their penetrating power is high.

Property 3: They cannot travel through vacuum.

Property 4: Ultrasonic waves travel at the speed of sound in the medium. They have maximum velocity in a denser medium.

Property 5: In a homogeneous medium, they travel at a constant velocity.

Property 6: In low viscosity liquids, ultrasonic waves produce vibrations.

Property 7: They undergo reflection, refraction and absorption.

Property 8: They have high energy content. They can be transmitted over a large distance without much loss of energy.

Property 9: They produce intense heat when they are passed through objects.

Property 10:Like sound waves, ultrasonic waves are longitudinal waves that produce alternate compressions and rarefactions.

Explanation:

Television broadcasts utilize radio waves to transmit signals from the broadcaster to the television set.

The signals contain data, including audio and video, which is decoded and shown on the screen. The electromagnetic spectrum, which also contains visible light and X-rays, includes radio waves. These waves can move across a variety of media, including air, water, and even space, and have varying frequencies.

Since the early 20th century, radio waves have been used to broadcast television, becoming a standard in homes all over the world. Over time, technological advancements have improved picture and sound quality and increased the number of available channels. In the worlds of communication and entertainment, television transmissions and radio waves have, in short, had a long and significant association.

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Relative humidity indicates the nearness to saturation for the air, which means the amount of water vapor present in the air relative to the maximum amount the air can hold at that temperature. So the correct option is b.

Relative humidity indicates the nearness to saturation for the air. Relative humidity is a measure of the amount of moisture present in the air compared to the maximum amount of moisture the air could hold at a particular temperature, expressed as a percentage. It is a measure of how close the air is to being saturated with moisture. When the relative humidity is 100%, the air is fully saturated and cannot hold any more moisture, which often leads to the formation of clouds or precipitation. Conversely, when the relative humidity is lower, the air has the capacity to hold more moisture before reaching saturation. Relative humidity is an important parameter in weather forecasting, as it can affect various atmospheric processes such as cloud formation, evaporation, and precipitation.

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Answer:

c. eco

ya que hay trasmisión de energía de un lado al hacer ecos

Given data

*The given initial velocity of the football is v = 20.2 m/s

*The angle above the horizontal is

*The value of the acceleration due to gravity is a = -9.8 m/s^2

The vertical component of the velocity is calculated as

The formula for the time required by the ball to reach the maximum height is given by the equation of motion as

*Here v_f = 0 m/s is the final velocity of the football at maximum height

Substitute the known values in the above expression as

The total time is taken by the football before it hits the ground is calculated as

Nucleotides in a single strand of a DNA molecule are linked together by phosphodiester bonds.

DNA, or deoxyribonucleic acid, is composed of nucleotides. Each nucleotide consists of three components: a sugar molecule (deoxyribose), a phosphate group, and a nitrogenous base (adenine, thymine, cytosine, or guanine). In a DNA molecule, the nucleotides are linked together through a chemical bond known as a phosphodiester bond. The formation of this bond occurs between the phosphate group of one nucleotide and the sugar molecule of the adjacent nucleotide.

The phosphodiester bond forms through a condensation reaction, where a molecule of water is released. Specifically, the phosphate group of one nucleotide reacts with the hydroxyl group (-OH) on the 3' carbon atom of the sugar molecule of the next nucleotide. This reaction results in the formation of a covalent bond between the phosphate and sugar molecules. This process is repeated sequentially, creating a backbone of alternating sugar and phosphate groups, with the nitrogenous bases extending out from the sugar-phosphate backbone.

The phosphodiester bonds play a crucial role in maintaining the integrity and stability of the DNA molecule. They provide structural support and contribute to the double helix structure of DNA. The sequence of nucleotides along the DNA strand encodes genetic information, which is vital for various cellular processes, including protein synthesis and inheritance of traits. The strength of the phosphodiester bonds ensures the fidelity of DNA replication and transmission of genetic information during cell division and inheritance.

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The persοn is mοving at a speed οf 55 miles per hοur in the Sοuth directiοn when the persοn is 50 miles West and 70 miles Sοuth οf the car, and the distance between them is increasing at a rate οf 55 miles per hοur.

Tο determine the speed at which the persοn is mοving, we can use the cοncept οf relative velοcity.

Let's cοnsider the hοrizοntal and vertical cοmpοnents separately:

Hοrizοntal Cοmpοnent:

The persοn is walking due East, which is perpendicular tο the Nοrth directiοn οf the car. Therefοre, the hοrizοntal cοmpοnent οf the persοn's velοcity dοes nοt affect the speed at which the persοn is mοving away frοm the car.

Vertical Cοmpοnent:

The persοn is 70 miles Sοuth οf the car, and the distance between them is increasing at a rate οf 55 miles per hοur. This indicates that the persοn's vertical pοsitiοn is changing with time. Since the persοn is mοving in the Sοuth directiοn and the distance is increasing, the persοn's speed can be determined by the rate οf change οf the vertical distance.

Given that the distance is increasing at a rate οf 55 miles per hοur, the persοn's speed in the Sοuth directiοn is 55 miles per hοur.

Therefοre, the persοn is mοving at a speed οf 55 miles per hοur in the Sοuth directiοn when the persοn is 50 miles West and 70 miles Sοuth οf the car, and the distance between them is increasing at a rate οf 55 miles per hοur.

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In the image, the distance between A and B represents the d of the equation.

Diffraction occurs when waves, such as light or sound, spread out when they pass through a slit or around an object.

Light will spread out and overlap with light from the other slits as it travels through each of the slits.

The two-slit diffraction of light is seen in the figure below. Wave sources are represented by narrow slits at A and B, while waves interfering in various phases are displayed at C, D, E, and F.

A diagram illustrating light diffraction through two slits. On the left, narrow slits A and B operate as sources, while on the right, waves interfering in various phases are depicted at C, D, E, and F.

The given equation is;

\(\frac{\lambda}{d} =\frac{x}{L}\)

The equation represents the image form between A and B.

Hence in the image, the distance between A and B represents the d of the equation.

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When waves, like sound or light, spread out as they move through a slit or around an object, this is known as diffraction.

Thus, As light passes through each slit, it will disperse and blend with light from the other slits.

The illustration below shows how light is diffracted by two slits. Narrow slits at A and B depict the wave sources, while waves interacting in different phases are shown at C, D, E, and F.

a picture showing the diffraction of light via two slits. Narrow slits A and B act as sources on the left, and on the right, waves at C, D, E, and F are shown interacting in different phases.

Thus, When waves, like sound or light, spread out as they move through a slit or around an object, this is known as diffraction.

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Answer:

I think its A

Explanation:

Not 100 percent sure tho but they do go up and down in big movements.

Answer:

the stars which are red in color are cool.

Explanation:

The stars which has reddish color are cool in nature while those stars which has white and blue in color are very hot in nature. The stars change its color when they becomes hotter , first the star color reddish when they are cool but with increasing temperature it changes the color from reddish to orange then yellow. After yellow it turns green and finally get blue color when the stars are very very hot.

Answer:

Explanation:

The force that belongs in a free-body diagram of the apple is the force of earth on the apple.

This force is also known as the gravitational force or the weight of the apple. It is the force that pulls the apple downwards towards the center of the Earth.

In a free-body diagram, the force of earth on the apple would be represented by an arrow pointing downwards from the apple. This force is equal in magnitude but opposite in direction to the force of the apple on the Earth, which is one half of the force pair produced when the apple falls through the air.

The normal force, contact force, and force of apple on Earth are not relevant to the free-body diagram of the apple as they do not act on the apple while it is falling through the air.

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The nearest orbital distance of a planet from its star, known as the perihelion, varies based on specific factors such as the masses of the star and planet, and the eccentricity of the planet's orbit.

The perihelion represents the closest point in a planet's elliptical orbit to its star. This distance is influenced by several factors. Firstly, the mass of the star affects the gravitational pull on the planet, influencing its orbital shape and distance. Additionally, the mass of the planet itself plays a role in determining its orbital path. Finally, the eccentricity of the planet's orbit, which measures how elliptical it is, affects the distance at the perihelion. Planets with more eccentric orbits will have greater variations in their distances from the star at different points in their orbits. Therefore, without specific details about the planet and its star, we cannot provide a precise value for the nearest orbital distance.

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Electrons with a speed of 1.3x10 m/s pass through a double-slit apparatus. Interference fringes are detected with a fringe spacing of 1.6 mm, the fringe spacing for neutrons with the same speed will be approximately 3.04x\(10^{-13\) m.

The fringe spacing in a double-slit apparatus is given by the formula:

λ = (d * L) / D

The de Broglie wavelength is given by the formula:

λ = h / p

p = m * v

p = m * v

= (1.675x\(10^{-27\) kg) * (1.3x\(10^6\) m/s)

= 2.1775x\(10^{-21\) kg·m/s

Now,

λ = h / p

= (6.626x\(10^{-34\) J·s) / (2.1775x\(10^{-21\)kg·m/s)

≈ 3.04x\(10^{-13\) m

So,

λ = (d * L) / D

(3.04x \(10^{-13\) m) = (d * L) / D

d * L = (3.04x \(10^{-13\) m) * D

d = [(3.04x1 \(10^{-13\) m) * D] / L

d = [(3.04x \(10^{-13\) m) * (1.6x \(10^{-3\) m)] / (1.6x \(10^{-3\) m)

= 3.04x \(10^{-13\) m

Therefore, the fringe spacing for neutrons with the same speed will be approximately 3.04x \(10^{-13\) m.

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