The consumers of bottled water often do not dispose of the empty plastic bottles responsibly. Millions of throw away plastic water bottles end up in landfills and in the ocean, creating huge environmental damage. The government is constantly engaged in finding solutions to this environmental issue. a. Identidfy the economic concept that will explain the damage created by thrown away empty plastic water bottles. b. Analyse the market situation given above using the economic concept you identified in part a. Hint: explain the relevant economic concept and apply the key aspects of it to the given market situation. c. Describe two solutions available to the government to correct this environmental issue d. Explain how these solutions will correct the given situation.

Power needed to operate the Carnot refrigerator is 239.05 MW.

Carnot refrigerator works between two temperatures, namely high-temperature reservoir and low-temperature reservoir. It removes heat from a cold reservoir and exhausts it to a hot reservoir. Its working depends upon Carnot cycle which has four steps and two adiabatic processes. This process is a reversible process, which means it can run both ways.The temperature inside a Carnot refrigerator placed in a kitchen st 22.0°C is 2°C. The heat extracted from the refrigerator is 89 MJ/h.

Power needed to operate the Carnot refrigerator =\frac{ (heat extracted)  (time)89 MJ}{h} =\frac{ (heat extracted) }{ 1 hour}.

Therefore, heat extracted = 89 MJAs per Carnot refrigeration cycle,

Q2 = Q1 (\frac{T2 }{ T1 - T2})where: Q2 = Heat absorbed by the refrigerator at low temperature;T2 = Temperature of refrigeratorT1 = Temperature of the environmentQ1 = Heat released by the refrigerator at high temperature Heat absorbed = heat extracted = 89 MJ

Temperature of the refrigerator (T2) = 2°C Temperature of the environment (T1) = 22°CQ2 = Q1 (\frac{T2 }{ T1 - T2})89 MJ = \frac{Q1 (2 + 273) }{(22 + 273 - 2)Q1 }= 239.05 MJ

Therefore, power needed to operate the Carnot refrigerator = 239.05 MJ / h (per hour) = 239.05 MW (per minute)

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None of the options listed is a negative externality. A negative externality is an unintended consequence of an economic activity that affects a third party who is not directly involved in the activity.

If I were to choose: Businesses would not necessarily increase hiring rates.

This could be considered a negative externality because the grant funding is intended to fund job training in order to increase employment opportunities, but if businesses do not increase their hiring rates despite having a pool of trained workers, then the intended benefit of the grant may not be fully realized. This could result in a loss of resources and a missed opportunity to address unemployment in the community.

Alternative B (8800N) is the best choice. Therefore, a large piston with hydraulic lift can sustain an automobile weighing 8800 N.

The newton, abbreviated N, is the SI unit of force. Base units that are pertinent to force include: The symbol for the length unit of a metre is m. the kilogram (kg), a unit of mass. s stands for the second, a unit of time.

The term "force" has a specific meaning in science. At this level, calling a force a push or a pull is quite appropriate. A force is not something an item "has in it" or that it "contains." One thing experiences a force from another. The concept of a force does not just apply to.

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(45. 0 m/s) - (5.0 m/s) ÷ 20

40 m/s ÷ 20 s = 2 meter second minus 2.

I am sry if my ans is wrong

Answer:

the positive and negative charges of the hydrogen and oxygen atoms that make up water molecules makes them attracted to each other

Explanation:

Hope this helps dude

Answer:

i think try theanswer

Explanation:

proper

Answer:

A

Explanation:

For an object to move with constant speed the forward force is opposed by the effects of forces. There is no resultant force acting or constant speed is a result of no resultant force.

Newton's second law states that an object with no net forces acting on it which is initially at rest will remain at rest. If it is moving, it will continue to move in a straight line with constant velocity. Newton's Second Law states: F = ma. F is the net force acting on an object.

Also if velocity or speed is constant the acceleration will be 0 the F=m×0

F=0.

Sorry my answer was wrong :P

The common features of motion and chemical reaction are the movement of particles and the presence of kinetic energy.

Motion is the phenomenon in which an object changes its position concerning other objects. Motion is described in terms of displacement, distance, velocity, acceleration, and speed.

Chemical reactions occur when chemical bonds are formed between atoms. The substances that take part in a chemical reaction are known as the reactants whereas the substances that are produced at the end of the reaction are called the products.

So we can conclude that the movement of particles and the presence of kinetic energy are the common characteristics of motion and chemical reaction.

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Answer:

sun is the main source while the other object reflect light on the sun

Explanation:

nasa libro yans

Thus, the total potential is then V_total = \(-1.2 * 10^9V\)

The potential at a point due to a charge is given by V = kQ/r, where k is Coulomb's constant (~\(9x10^9 Nm^2/C^2\)), Q is the charge, and r is the distance from the charge.

The total potential at the center of the square is the sum of the potentials due to each charge.

The distance of each charge to the center is half the diagonal of the square, which is \(\sqrt2 * side/2 = \sqrt2 * \sqrt4.5/2 = 1.5m.\)

The total potential is then V_total

= \(k * [(510^8/1.5) + (210^8/1.5) - (510^8/1.5) - (710^8/1.5)] = -2 * k * 10^8 / 1.5 \\= -1.2 x 10^9 V.\)

Thus, the total potential is then V_total = \(-1.2 * 10^9V\)

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The second largest moon in our solar system is Titan.

It is the largest moon of Saturn and the only moon in the solar system with a significant atmosphere. It is also one of the few bodies in the solar system, other than Earth, where there is evidence of stable bodies of surface liquid.

The Cassini-Huygens mission was launched in 1997 and reached the Saturn system in 2004. This mission provided detailed observations of Titan, including radar images of its surface and measurements of its atmosphere and composition.

The second largest moon in our solar system, Titan is bigger than Mercury. Ganymede, a moon of Jupiter, is just somewhat bigger (by around 2%). Titan's atmosphere is primarily composed of nitrogen, just like Earth's, but it has a surface pressure that is 50% higher.

Titan has liquid hydrocarbons like methane and ethane in its rivers, lakes, seas, clouds, rain, and atmosphere. The greatest seas are hundreds of miles across and several hundred feet deep. More liquid—an ocean made primarily of water as opposed to methane—lies beneath Titan's thick water ice layer. Titan's subterranean water might support life as we know it, while its liquid hydrocarbon lakes and seas might support life that has a distinct chemistry.

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Answer:

Answer choice B!

Explanation:

Study Island work

Answer:A

I DID THIS ON STUDYILSLAND

Answer:

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Explanation:

I EUISTsjie hYRUyeRE HueRU seUILQALUIE SLieQLALle gLIU EGeL EIeusR eSRUOhr

In a system using a single movable pulley, the mechanical advantage (MA) is equal to 2. This means that the load being lifted will experience a gain in force of two times the input force applied.

A movable pulley is one that is attached to the load being lifted and is free to move along with it.

When a force is applied to lift the load, the movable pulley changes its position, effectively reducing the force required to lift the load.

The key concept behind the mechanical advantage is that the load is distributed between the input force and the pulley.

In a single movable pulley system, the load is divided between the input force and the pulley itself.

The input force only needs to overcome half of the load's weight since the pulley contributes an equal amount of force in the opposite direction. This results in an MA of 2, indicating a doubling of force.

For example, if a load weighs 100 pounds, an input force of 50 pounds would be sufficient to lift it.

The movable pulley helps distribute the load's weight, reducing the force required by half.

Overall, using a single movable pulley provides a mechanical advantage of 2, allowing the load to be lifted with less force compared to lifting it directly.

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The implied annualized risk-free rate of return for holding the futures contract is approximately 8.51%.

In this scenario, the futures price of the ABC index is higher than the spot price, indicating a positive cost of carry. To calculate the implied annualized risk-free rate of return, we can use the formula:

Implied Annualized Risk-free Rate = (Futures Price - Spot Price) / Spot Price * (365 / Time to Expiration)

Given the spot price of 1302, the futures price of 1335, and a 6-month expiration period, we can plug these values into the formula:

Implied Annualized Risk-free Rate = (1335 - 1302) / 1302 * (365 / 0.5)

Calculating the expression yields approximately 0.0851 or 8.51%. This implies that holding the futures contract on the ABC index would yield an annualized risk-free return of 8.51% if the current market conditions persist.

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The above given question is incomplete, below a complete question is written:

The (hypothetical) ABC index spot price is currently at 1302, and the continuously compounded risk-free rate is 6% per annum. The 6-month observed futures price on the index is 1335. What is the implied annualized risk-free rate of return for holding the futures contract?

Answer:

1) False

2) True

3) 36N

Explanation:

1) Quantitative observation is related to number of objects . But in that example , there isn't any number.

2) Potential energy depends on height. So potential energy increases when height increases.

3) F = m×a

In the question , m = 18 kg ; a = 2m/s^2

So, F = 18×2 = 36N

The time taken by the shot to reach the height of Sam's head is 0.196 s.

The initial velocity of the shot u = 0 m/s.

Acceleration, a = 36.0 m/s²

Displacement, s = 68 cm = 0.68 m

We can use the formula v² = u² + 2as, where v is the final velocity of the shot.

v² = u² + 2asv² = 0 + 2(36.0 m/s²)(0.68 m)

           = 49.536 m²/s²v = √(49.536 m²/s²) = 7.04 m/s

Therefore, the speed of the shot when Sam releases it is 7.04 m/s. (DETAIL ANS)

B) Let h be the maximum height the shot reaches above the ground.

Using the equation v² = u² + 2as, we can find the maximum height, h.

v² = u² + 2ash = (v² - u²) / (2a)h = (7.04 m/s)² / (2 × 36.0 m/s²) = 0.707 m

Therefore, the height that the shot reaches above the ground is 0.707 m. (DETAIL ANS)

C) Sam's height is 1.73 m above the ground.

We can find the time taken by the shot to reach the height of Sam's head using the equation v = u + at, where v is the final velocity, u is the initial velocity, a is the acceleration, and t is the time taken

.v = u + atv = 0 + (36.0 m/s²)t = 36.0tt = v / at = (7.04 m/s) / (36.0 m/s²) = 0.196 s

Therefore, the time taken by the shot to reach the height of Sam's head is 0.196 s. .

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The strength of an electromagnet's magnetic field can be increased by the following below:

A. Increasing the amount of current flowing through the wire

B. Increasing the number of coils packed close together

D. Increasing the thickness of the coils.

This is referred to as a region around a magnetic material or a moving electric charge within which the force of magnetism acts.

Increasing the number of coils packed close together or the thickness will increase the strength of an electromagnet's magnetic field because each coil has its own magnetic field, so the more coils will increase it thereby making it the correct choices.

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According to the Big Bang Theory, the early universe was an extremely hot place, and as it expanded, the gas inside of it cooled. Therefore, radiation known as the "cosmic microwave background," or CMB, which is essentially the leftover heat from the Big Bang, should be present everywhere in the cosmos.

The cooled residue known as the Cosmic Microwave Background (CMB) is the first light to ever flow freely through the universe.

The temperature of the cosmic microwave background varies only very slightly from nearly perfect uniformity in all directions due to the regions of slightly higher density that made it possible for galaxies to form.

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Answer:

earth is 4.54 billion years old

for an organism to survive they would have to change ( mutate )

A mutation is any permenant change in dna of a gene or chromosome

some mutations are bad and some can be good

Explanation:

The time taken for the coffee to cool from 93°C to 73°C is approximately 36.1 minutes.

The cooling law is given by:

$$\frac{dQ}{dt}=-k(T-T_0)$$

where Q is the heat in the object, t is the time taken, T is the temperature of the object at time t, T0 is the temperature of the environment and k is a constant known as the cooling constant.

We need to find the time it takes for the coffee to reach a drinking temperature of 73°C given that its initial temperature is 93°C.

Therefore, we need to find the time it takes for the coffee to cool down from 93°C to 73°C when placed in a room temperature of 18°C.

Let’s assume that the heat energy that is lost by the coffee is equal to the heat energy gained by the environment. We can express this as:

dQ = - dQ where dQ is the heat energy gained by the environment.

We can substitute dQ with C(T-T0) where C is the specific heat capacity of the object.

We can rearrange the equation as follows:

$$-\frac{dQ}{dt}=k(T-T_0)$$

$$-\frac{d}{dt}C(T-T_0)=k(T-T_0)$$

$$\frac{d}{dt}T=-k(T-T_0)$$

The differential equation above can be solved using separation of variables as follows:

$$\frac{d}{dt}\ln(T-T_0)=-k$$

$$\ln(T-T_0)=-kt+c_1$$

$$T-T_0=e^{-kt+c_1}$$

$$T=T_0+Ce^{-kt}$$

where C = e^(c1).

We can now use the values given to find the specific value of C which is the temperature difference when t=0, that is, the temperature difference between the initial temperature of the coffee and the room temperature.

$$T=T_0+Ce^{-kt}$$

$$73=18+C\cdot e^{-0.09t}$$

$$55=C\cdot e^{-0.09t}$$

$$C=55e^{0.09t}$$

$$T=18+55e^{0.09t}$$

We can now solve for the value of t when T=93 as follows:

$$93=18+55e^{0.09t}$$

$$e^{0.09t}=\frac{93-18}{55}$$

$$e^{0.09t}=1.3636$$

$$t=\frac{\ln(1.3636)}{0.09}$$

Using a calculator, we can find that the time taken for the coffee to cool from 93°C to 73°C is approximately 36.1 minutes.

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Answer:

d a

Explanation:

The period of oscillation for a mass attached to a vertical spring does not depend on its amplitude.

The period of oscillation of a mass attached to a spring is determined by the mass of the object and the spring constant, and it is independent of the amplitude of oscillation. The period of oscillation is defined as the time taken for the mass to complete one full cycle of oscillation, and it is given by the formula T = 2π√(m/k), where T is the period, m is the mass of the object, and k is the spring constant. This formula shows that the period of oscillation is only dependent on the mass of the object and the spring constant, and not on the amplitude of oscillation.

The amplitude of oscillation, on the other hand, refers to the maximum displacement of the mass from its equilibrium position. While the amplitude does not affect the period of oscillation, it does affect the maximum speed and acceleration of the mass during oscillation. As the amplitude increases, the maximum speed and acceleration of the mass also increase, which can cause the spring to stretch further and potentially reach its maximum elastic limit, leading to permanent deformation or breakage of the spring. Therefore, it is important to ensure that the amplitude of oscillation remains within a safe range to prevent damage to the spring and maintain the accuracy of the period of oscillation.

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The rolling stone has both potential energy (due to its position on the hill) and kinetic energy (due to its motion as it rolls down the hill). As it moves down the hill, it gains more kinetic energy and its potential energy decreases. This transfer of energy allows the stone to continue rolling until it reaches the bottom of the hill.

          When a stone is pushed from the top of a hill and is halfway to the bottom while rolling, the correct answer is C) the stone has both potential energy and kinetic energy. At this point, the stone still has some height above the ground, giving it potential energy, and it is also moving, giving it kinetic energy.

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Answer: solute: sugar, coffee powder, salt, cocoa powder, liquid detergent, monosodium glutamate (vetsin).

solvent: cow's milk, water, fruit extract

Explanation:

A solution is a mixture that is made up of two or more substances including solute and solvent.

The solute is one which can be dissolved in a liquid part that is solvent. The solute can be liquid or solid. Solutes are sugar, salt, coffee powder, cocoa powder, liquid detergent, monosodium glutamate.

The solvent is one which dissolves in it solute particles or molecules. Solvent are cow's milk, water, and fruit extract.

There are some traits of successful entrepreneurs, these are as follows:

1. He should be a highly motivated towards the work.

2. He sholud be creative in nature. He should think out of box and develop some ideas for the problem.

3. He should have clear vision for the future.

4. He should be very versatile and ready to adapt any changes.

5. He should be ready to take some risk.

6. He should have the ability of decision making and leadership quality.

Increasing filter pore size increases filtration rate due to less resistance.

Increasing the pore size of a filter will generally result in an increase in the filtration pore .

Here are the steps to explain this:

It's important to note that increasing pore size may also result in a decrease in the filter's ability to capture smaller particles, since larger pores will allow more particles to pass through. So, increasing the pore size may result in a trade-off between filtration rate and particle capture efficiency.

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Answer:

B

Explanation:

The best choice is 6m, because he has to apply less force over a greater distance.

The given parameters;

The mechanical advantage of the each of the choices is calculated as follows;

First choice:

\(M.A = \frac{l_1}{h} \\\\M.A = \frac{4}{3} \\\\M.A = 1.333\)

Second choice:

\(M.A = \frac{l_2}{h} \\\\M.A = \frac{6}{3} \\\\M.A = 2\)

Thus, we can conclude that the best choice is 6m, because he has to apply less force over a greater distance.

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