A closed piston-cylinder system contains air (molecular weight M = 28.97 kg/kmol) at a temperature of 27'C and an absolute pressure of 100 kPa.
(a) Determine the specific volume of air, in m'/kg. Air in the cylinder is heated without changing its temperature until its volume doubles.
(b) Does the specific volume of air in the cylinder decrease, increase, or remain the same? Justify with quation(s).
c) Does the pressure of air in the cylinder decrease, increase, or remain the same? Justify with equation(s).

The match-ups of the various waste management are listed below.

What is waste management?

The collection, transportation, processing, and recycling or disposal of waste are all included in trash management. In order to lower environmental risks and protect resources, sustainable waste management systems incorporate advanced management techniques.

To keep as much waste out of the landfill as possible, each of us must contribute. Reduce, Reuse, and Recycle, also known as the 3 Rs of trash management, are one way to carry out that strategy.

Solid pollutants are burned during incineration.

Setting: Polluted water is permitted to remain motionless

Composting: Microorganisms are utilized to

Pollutants are drawn into contact with hard surfaces through gas adsorption.

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Answer:

Pollutants are captured through contact with solid surfaces.

-( gas adsorption )

Solid pollutants are burned and converted into harmless forms.

-( incineration )

Microbes are used to convert organic land pollutants harmless forms.

-( composting )

Polluted water is allowed to stand still for some time, until pollutants settle at the bottom. -( settling )

Explanation:

Correct/plato/edmentum

a) electric field will be zero at (2.414 × d) distance from weaker charge Q, and at (3.414 × d) distance from the stronger charge 2Q

b) electric field will be zero at '0.414d' distance from weaker charge Q, and at '0.586d' distance from the stronger charge 2Q.

When charge exists in any form, an electric field is linked with each point in space. E, often known as electric field strength, electric field intensity, or just the electric field, is a mathematical constant that expresses the strength and direction of an electric field.

a)

Electric field is given by:

Assuming ₁ = Q, q₂ = 2Q, and suppose q₁ is at origin and q₂ is at x = +d

Now suppose at point P, distance x = - r electric field is zero, then

E(net) = E₁ - E₂ = 0

E₁ = E₂

kq₁/r₁² = kq₂/r₂²

r₁ = distance between q₁ and P = r

r₂ = distance between q₂ and P = d + r

Using above values:

q₁/r₁² = q₂/r₂²

Q/r² = (2Q)/(d + r)²

1/r² = 2/(d + r)²

(d + r)/r = √2

(d + r) = r × √2

r = d/((√2) - 1) = 2.414 × d

So. electric field will be zero at (2.414 × d) distance from weaker charge Q, and at (3.414 × d) distance from the stronger charge 2Q.

b)

Electric field is given by:

E = kq/R²

We know that the direction of the electric field will be away from the charge when the charge is (+)ve and towards the charge when the charge is (-)ve. Since q₁ and q₂ have the same sign in the example, the electric field between the charges will be zero.

Assuming q₁ = Q, q₂  = 2Q, and suppose q₁ is at origin and q₂ is at x = +d

Now suppose at point P, distance x = r from origin electric field is zero, then

E(net) = E₁ - E₂ = 0

E₁ = E₂

kq₁/r₁² = kq₂/r₂²

r₁ = distance between q₁ and P = r

r₂ = distance between q₂ and P = d - r

Using above values:

q₁/r₁² = q₂/r₂²

Q/r² = (2Q)/(d - r)²

1/r² = 2/(d - r)²

(d - r)/r = √2

d - r = r ×√2

r = d/((√2) + 1) = 0.414d

So, electric field will be zero at '0.414d' distance from weaker charge Q, and at '0.586d' distance from the stronger charge 2Q.

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We must multiply a conversion factor to convert pressure from one unit to another and a factor of 273 must be added to convert temperature from Celsius to Kelvin.

We have pressure on both sides of the equation for pressure and temperature. As a result, the conversion factor is wiped out, and we may utilise pressure in any unit. In order to convert temperature from Celsius to Kelvin, we must add a factor of 273. As a result, the answers for Celsius and Kelvin are not the same. We use Kelvin instead of Celsius since it is a standard unit.

Temperature and pressure are found to be linearly related. If the temperature is on the Kelvin scale, P and T are directly proportional and increases by a particular amount, just as the gas pressure.

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If two forces are applied to an object in opposite directions, the net force is the difference between the two forces. This is because both forces in opposite directions cancel each other out.

When two forces of equal strength act in opposite directions on an object, the forces cancel, resulting in a net force of zero and no motion. Equal to the sum of two forces. If two unequal forces act on an object in opposite directions, the net force is the difference between the two forces. When two forces act on any two objects in opposite directions, the net force is the difference between the two forces

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Increases is voxel size affected volume  by changing the FOV from square to rectangular

How is fragment size shown in the image

The values chosen for the three procedure factors—FOV, grid size, and slice thickness—determine the size and level of detail of the voxels in MR images. The proportion of a field of view (Field - of - view) as well as the length of the matrices determines the size of the a voxel in the image's plan.

The volume element in 3D space is known as a voxel. The pixel, combined with the width of the slice, determines its dimensions Chop.

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The flow of electricity is referred to as current. Metals are generally excellent conductors, allowing current to flow freely. Insulators are materials that do not allow current to flow easily. Insulators include most nonmetal materials such as plastic, wood, and rubber.

Electrical insulators are materials that do not allow electricity to pass through them. Plastic, rubber, wood, and glass are examples of these materials. Air also acts as an insulator. To keep electrical objects safe, most are constructed with insulators.

Electrical insulators include plastic, wood, glass, and rubber. That is why they are used to covering electrically conductive materials. The plastic that surrounds wires acts as an electrical insulator.

Thus, Insulators include most nonmetal materials such as plastic, wood, and rubber.

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The new real estate agent will earn  $10428.57 on the sale of his first house.

A percentage is a number or ratio that can be stated as a fraction of 100 in mathematics.

Let the cost price of the house = $x.

The new real estate agent earns 5% of the cost of the sold house.

Hence, the sold price is = $(x + x × 5%)

= $ (x +  x × 5/100)

= $ (105x/100)

According to the question:

(105x/100) = 219000

x = (219000 × 100)/105

= 208571.43

Hence, his earning on  the sale of his first house = $219000 - $208571.43

= $10428.57

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The period of an earth satellite in a circular orbit of radius 7000 km will be 4.4 × 10⁴ km.

Every orbit about an object it around "parent" is a delicate balancing act between gravitational force and the object's need to travel straight ahead. An precise force balance would result in a circular orbit, although this is uncommon.

Early in the 17th century, German scientist Johannes Kepler proposed three planetary motion principles. His predecessors' work, particularly that of Tycho Brahe and Nicolaus Copernicus, served as the foundation for his rules. The planets move in a circular route around the sun according to Copernicus' theory.

Well, this is easy as 1 period is same as circumference of a circle

so we can us the formula of circumference i.e.

C = 2πr

As r is given = 7000 km

C = 2π(7000)

[tex]$ \mathrm{C = 2 \times \frac{22}{7} (7000)}[/tex]

[tex]$ \mathrm{C = 2 \times 22} \times 1000}[/tex]

C = 44000 km or 4.4 × 10⁴ km

Thus, the period of an earth satellite in a circular orbit of radius 7000 km will be 4.4 × 10⁴ km.

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The force acting on the moving sled is equal to F = 7.76 N while it was moving.

Momentum and velocity are different in that momentum is a measurement of an object's amount of motion, whereas velocity is a measurement of an object's speed with direction. Velocity is one of the components of momentum since momentum is equal to an object's mass multiplied by its speed.

Walking - When we walk on the ground or a surface, our feet are kept firmly planted by frictional force. We frequently slip on icy or slippery surfaces because there is less friction present.

Given,                                

Mass of sled = 15.0 Kg                                    

speed of snow on horizontal surface = 4.50 m/s

time taken to stop = 8.70 s

initial momentum              

= m U                              

= 15.0 x 4.50 = 67.5 Kg.m/s

final momentum                        

final velocity = 0 m/s            

final momentum = 0                    

impulse = change in momentum

impulse = force x time    

equating both the formula of impulse    

F x t = 67.5 - 0

F x 8.70 = 67.5  

F = 7.76 N  

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You will use your data to find the car's rate of acceleration in two different ways: by using an equation to calculate it and a graph to take the slope.

The pace at which speed changes is known as acceleration.So because direction of an object's velocity is shifting even while it follows a circular course, it continues to accelerate.

According to the formula a = v/t, kinetic energy (a) is the product of the shift in velocity (v) and the shift in time (t). In terms of meters per minute squared (m/s2), this enables you to calculate how quickly velocity varies.

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The significant digits expressed in SI Units are: 0.447 kg.m/N, 0.911 kg.s and 18.8 GN/m

Significant digits are the digits in a measurement or calculation that are known with some level of accuracy. They include all digits that are certain, as well as one uncertain digit, also known as the last digit or the least significant digit. For example, in the number "12.34," the digits 1, 2, 3, and 4 are significant because they are all known with some level of accuracy. The number of significant digits in a measurement or calculation is important because it gives an indication of the precision of the measurement or calculation.

a) 354 mg (45 km)

(345 mg)(45 km)/0.0356 kN = [354(10^-3)g][45(10^3)m]/0.0356(10^3) N

= 0.447(10^3)g.m/N

= 0.447 kg.m/N

b) (0.00453Mg)(201ms) = [4.53(10^-3)(10^3)kg][201(10^-3)s]

= 0.911 kg.s

c) 435MN/23.2mm = 435(10^6) N/23.2(10^-3)m

= 18.75(10^9)N/m

= 18.8 GN/m

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The curve has two segments in which heat is added to the water but the temperature does not rise is because:

The temperature difference between the outside air temperature and the supply temperature of the heating system is known as the heating curve. According to the heating curve, the CH boiler must heat the water to a specific temperature at a specific outdoor temperature. Two parameters—the curve's slope and level—are used to describe this relationship.

The so-called "Stoker's table," which assisted in determining the required supply temperature of the heating system based on outside temperature, served as the prototype for the heating curve. Due to the weather-based control, which modifies the supply temperature in accordance with the outside temperature, a heating curve is automatically applied.

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Complete question:

Examine the heating curve for water in Section 11.7 (Figure 11.36). Explain why the curve has two segments in which heat is added to the water but the temperature does not rise.

The weathering processes of cliffs with ridges and smooth plain in the same area might be different hence options A and D are the correct answers.

Weathering describes the process of breaking down or disintegration or dissolving of rocks and minerals on the surface of the Earth. Water, ice, plants, animals, acids, salts, and changes in temperature are all agents of the process of weathering.

Mechanical weathering, also called a physical weathering or disaggregation, causes the rocks to crumble. Water, in either in the liquid or the solid form, is often the key agent of mechanical weathering.

Chemical weathering is process of changes in the molecular structure of rocks and soil. For an instance, carbon dioxide from the air or the soil sometimes, combines with water in a process called carbonation.

Biological weathering is the process where rocks are weaken or disintegrated by plants, animals or microbes.

The weathering processes on a smooth plain and on a cliff with ridges require the Mechanical Weathering and Biological/Chemical Weathering respectively.

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The correct question should be:

Which of the following indicates that different rocks in the same area might weather differently? Select the two correct answers.

A. Cliffs with ridges

B. Rock pillars in the middle of grassy plains

C. The rock atop a newly formed Mountain

D. A smooth plain

Particle 1 and Particle 2 these two particles have the same centripetal force.

correct option: (A) and (B)

Any force that changes the direction of motion toward the center of a circular motion is known as a centripetal force. The part of the force that produces the centripetal force is the part that is perpendicular to the velocity. Due to Earth's permanent axis of rotation, the direction of centrifugal force is always outward and away from the axis, which is the opposite of the direction of gravity at the equator and zero in the poles.

The direction of centrifugal force is always outward and away from the axis because the Earth revolves around a fixed axis. At the equator, it is therefore the opposite of the direction of gravity; at the poles, it is zero.

Centripetal acceleration is given by: a = v²/r

For particle 1: a₁ = v²/r

For particle 2: a₂ = (2v)²/2r = 2v²/r

For particle 3: a₃ = (v/2)²/r = v²/4r

For particle 4: a₄ = (2v)²/3r = 4v²/3r

centripetal force (F) = ma

Thus,

F₁ = = ma = mv²/r

F₂ = (m/2)a₂ = mv²/r

F₃ = 2ma₃ = 2mv²/4r = mv²/2r

F₄ = m4v²/3r = 4/3mv²/r

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The physical properties of a gas compare to those of a liquid in the sense that liquids take the shape of their containers, while gases expand to fill their containers (option d).

Physical properties are characteristics of a material that can be observed or measured without changing its chemical composition. Examples of physical properties include color, density, boiling point, etc.

Therefore, with this data, we can see that The physical properties of a gas are distinct from those of a liquid in that liquids take the shape of their containers, while gases fill them.

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Frictional heat generated as he descends the water slide is measured to be 490.5 J.

What causes that to be converted into heat energy by friction?

Sand that is moving will stop when it comes into contact with an obstruction due to the friction created by the contact, converting its kinetic energy to thermal energy, or heat.

m= 45Kg;

h= 8m;

vi = 3m/s

vf= 12m/s

Energy loss resulting from friction:

 Final kinetic energy= Total initial energy

mgh plus 1/2mvi = - [ 1/2 m vf^2]

=> [45x9.8x8 + 1/2 x 45 x (3)^2] - 1/2 x 45 x (12)^2

=> 490.5J

What four different ways are there to transfer thermal energy?

There are several ways to transfer heat, including conduction, thermal radiation, convection, and evaporation cooling.

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Answer:

mass of ball:0.5

acceration:4m/

force:?

we know that,

f:ma

:0.5×4

:2 newton

The block has maximum speed at 0.00 m, The friction  block has half the initial spring potential energy at = -0.025 m

The correct answer is B,C

The force preventing solid surfaces, liquid layers, and sliding material components from moving in the same direction is known as friction. Friction can take many different forms: The relative lateral movement of two solid surfaces that are in contact is opposed by dry friction.

We have given the Force Constant of spring K= 50 N/m.

At x=-0.02 m, Force =-kx

F= -(-0.02\times 50)= 1N Hence Option (A) will be correct.

A ND also  block has maximum speed at x=0m at equilibrium position because

All the  potential Energy get converted to Kinetic Energy.  

The opposing force that causes two surfaces to move in that direction or in the opposite direction when they come into contact is called frictional force. Since it is a force which resists or resists the movement of something when it comes into contact with another object and slides against it,

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The correct question is

A block of mass 0.10 kg is attached and secured to one end of a spring with spring constant 50. The other end of the spring is secured to a wall. The block is pushed against the spring, which compresses the spring to a position of z=-0.04 m. When uncompressed, the end of the spring that is attached to the block is at a position of = 0.00 m. The block-spring system is then released from rest, and the block travels along a horizontal, rough track. A motion sensor is placed so that it measures the velocity of the object as it slides along the track. A graph of total mechanical energy of the block-spring system as a function of position is shown. Which of the following statements about the block-spring system are true? Select two answers.

A-The force exerted on the block by the spring at z=-0.02 m is 1 N.

B-The block has maximum speed at 0.00 m.

C-The block has half the initial spring potential energy at = -0.025 m

D-The work done by friction as the block travels from -0.04 m to -0.02 m is 0.01 J.

The maximum speed the mass of 1 kg is 10 m/s.

Speed is the ratio of the distance of a body to time.

To calculate the maximum speed of the mass, we use the formula below.

Where:

Substitute these values into equation 1 and solve for v

Hence, the maximum speed is 10 m/s.

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A vector is not a moment of inertia. A body's inertia is a quality that makes it resist attempts to set it in movement or, if it is already moving, then change the speed or direction of it.

Describe inertia using an example.

The resistance the body offers to remain in constant motion in the absence of an external force is known as the inertia of motion. For instance, the inertia of motion causes people to slide backward when a speeding bus suddenly stops.

What are inertia and the SI unit of it?

The quality of inertia is the incapacity of an object to alter its position or the conformation of a particular body. Kilo grammes are the SI unit of inertia because mass is a measurement of inertia. Kg m2 is the unit of inertia moment if you require one.

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The net force is zero because it is moving at a constant speed. So, in the horizontal direction = 0. This will happen if the horizontal component of T, Tcos0 is equal to the frictional force.

It acts in a direction that is opposite to the motion or attempted motion of an object. Frictional force is caused by the microscopic irregularities on the surfaces that are in contact. The strength of the frictional force depends on the types of materials in contact and the amount of force pressing the two surfaces together.

An example of friction is when you try to slide a book across a table. The table exerts a frictional force on the book in the opposite direction of the motion, making it harder to slide the book. Another example is when you try to walk on a slippery surface, such as ice, the friction between your shoes and the ice is reduced, making it harder to walk. Friction also plays a role in many everyday activities such as driving a car, using a pencil, and even typing on a keyboard.

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Answer:

B. increases.

Explanation:

When the concentration of the reactants in a chemical reaction is increased, the rate of the reaction usually increases. This is because increasing the concentration of the reactants increases the number of collisions between reactant molecules, which increases the likelihood of a successful collision that leads to a reaction. This is known as the collision theory of chemical reactions.

The simulation can be used to find both angular and tangential acceleration for the bugs in Ladybug Revolution.

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To find the density of the mixed liquid, you will need to determine the mass and volume of each individual liquid.

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When a positively-charged proton is near a negatively-charged electron, The particles attracts each other due to electromagnetism .

Electromagnetism is the interaction of charged particles with electromagnetic fields in physics. One of the four fundamental forces of nature is the electromagnetic force. It is the dominant force in interactions between atoms and molecules. You can think of electromagnetism as a combination of electrostatics and magnetism, two separate but intertwined phenomena.

While magnetism is an interaction that only happens between charged particles in relative motion, electromagnetic forces happen between any two charged particles, causing an attraction between particles with opposite charges and a repulsion between particles with the same charge.

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Complete question:

When a positively-charged proton is near a negatively-charged electron, which of the following will occur

There is no method to give the same impulse with a substantially smaller maximum force, even though the peak value of the force differs significantly from the average force.

By dividing the area under the force vs. time curve by the time, one can determine the average force (the base of the triangle in this case). As a result, the height of a triangular profile is just the peak force, and the average force is 1/2 the height.

The change in momentum over time is measured by force. It can be expressed as F = mass x velocity change / time.

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A group of physics students investigating projectile motion using a long ramp as shown in ramp 1 (below) may be able to study the following aspects of projectile motion

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There will be a correlation off of the negative zero point of about 0.9 and the less steep line.

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The percent increase in amount of lead nitrate from the first solution to the second is 5.55%.

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a) The effective radiating temperature of a cube-shaped planet can be described by the equation: T_eff = (S_absorb / S_emit)^(1/4) * T_sun, where T_eff is the effective radiating temperature, S_absorb is the surface area through which the cube absorbs radiation, S_emit is the surface area through which the cube emits radiation, and T_sun is the temperature of the sun.

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