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What happens to the amount of carbon in a closed ecosystem? Explain by giving examples and evidence from the article.

Scientists around the world who study Earth’s atmosphere have discovered something dramatic and alarming: an increase in the amount of carbon dioxide in our atmosphere. They are finding that the increase in carbon dioxide in our atmosphere may have worldwide effects on our climate and our oceans, which can threaten life all over the planet.
Where is the carbon that makes up all that carbon dioxide coming from? Carbon is an element that makes up a lot of the matter on Earth. New carbon can’t be created, so the extra carbon in our atmosphere had to come from somewhere—it must have decreased in some other part of the Earth system. But where? Humans put carbon into the atmosphere when we burn fuels like coal, oil, and gas that are found deep underground. These are called fossil fuels.
These fossil fuels make the modern human lifestyle possible. Most of the time, when we use a cell phone, drive a car, heat our homes, or turn on the lights, we are using energy that comes from burning fossil fuels. We currently depend on these fuels to power our lives, but burning them releases large amounts of carbon dioxide into the air—and that increase in carbon dioxide might jeopardize life as we know it.
Fossil Fuels
Coal, oil, and gas are called “fossil fuels” for a reason: they are the carbon-rich matter left behind by plants and animals that died millions of years ago. These plants and animals were buried deep underground before they could decompose, so decomposers never broke down the dead matter. Over millions of years, the remains of the plants and animals turned into carbon-rich fossil fuels—coal, oil, and gas. The carbon that was in the plants and animals when they died is still there; it’s just part of the fossil fuels. When we burn fossil fuels in cars, factories, or power plants, carbon that has been stored in the ground for millions of years is released into the air as carbon dioxide.
An illustration of ancient organisms.
Fossil fuels are the remains of animals and plants that died millions of years ago and were buried before they could decompose.
The Carbon Cycle
Earth is a closed ecosystem.
Earth is a closed ecosystem. There are many different regional ecosystems on Earth, but they all share one atmosphere and one ocean. Very little matter escapes from Earth into space, and almost none enters. Since almost no carbon enters or leaves Earth’s system, and carbon isn’t being produced or used up, the amount of carbon in the system does not change. If carbon is increasing in one part of Earth’s system, it must be decreasing somewhere else. 
Although carbon rarely leaves Earth’s system, carbon moves in a cycle within Earth’s ecosystem. This cycle is powered by energy. Carbon cycles from biotic matter to abiotic matter and back again. This means that carbon spends time in the air, in the ocean, in the soil, and in organisms as it moves continuously through the ecosystem. Powered by energy from sunlight, photosynthesis moves carbon from the air and water into living things. At the same time, cellular respiration moves carbon from living things to the air and water. This continuous, consistent pattern of movement is called the carbon cycle, and it is essential to the survival of life on Earth. However, human activities are altering the way carbon moves through the global ecosystem.
A diagram depicting the carbon cycle.
The Carbon Cycle: The arrows in this diagram show the pathways that carbon follows as it moves around the ecosystem. The black arrows show the pathways that exist naturally in the ecosystem. The large red arrow shows how humans can increase the amount of carbon in the atmosphere by burning dead matter like fossil fuels.
As people around the world burn more and more fossil fuels, a great deal of carbon from deep underground is moving into the atmosphere. Carbon in one part of the system (abiotic matter) is increasing, and as a result, carbon in another part of the system is decreasing—in this case, biotic matter, which includes dead matter. Since the entire Earth shares the same atmosphere, changes in levels of carbon dioxide affect ecosystems all over the planet.
All the extra carbon dioxide in the atmosphere is having many negative effects on the global ecosystem, and especially on the climate of our planet. Adding carbon dioxide to the atmosphere changes climate and weather patterns around the globe in ways that make it harder for many organisms to survive. Increased carbon dioxide causes global temperatures to rise, makes ocean water more acidic, and changes weather patterns. These changes may increase the chances of extreme weather events like hurricanes and droughts, which affect humans directly as well as the ecosystems and farms we depend on. By increasing the amount of carbon dioxide in the atmosphere, we are gambling with our very way of life.

three plus four NERD

The resulting amplitude when they meet is 4 units.

Amplitude is a term used in various fields including physics, engineering, and audio technology, with different meanings in each context. In physics and engineering, amplitude refers to the maximum displacement or magnitude of a wave or oscillation from its rest position. For example, in a sound wave, the amplitude is the maximum displacement of the air molecules from their average position, and it determines the loudness of the sound. In light waves, amplitude refers to the maximum intensity of the light wave, which determines its brightness. In audio technology, amplitude refers to the strength or volume of a sound wave. In digital audio, amplitude is typically represented by a numerical value and is used to control the volume of a sound.

As both are amplitude and one overlaps each other, the amplitude formula doesn't apply, we can simply multiply the waves

2 × 2

= 4

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Answer:

5 bulldogs

Explanation:

you need 4 bulldogs to beat 40 dragons, but since you would still need 3 dragons defeated, you would need another bulldog

When electromagnetic radiation is Doppler-shifted by motion away from the detector, the observed wavelength increases.

When an object emitting electromagnetic radiation, such as light, is moving away from an observer (detector), the wavelengths of the observed radiation are stretched or increased.

This phenomenon is known as the Doppler shift. It occurs because the motion of the source affects the perceived frequency or wavelength of the radiation. When the source is moving away, the observed wavelength is longer compared to the emitted wavelength.

This effect can be observed in various contexts, such as the redshift observed in the light from distant galaxies, indicating their recession from us due to the expansion of the universe.

Additionally, it is relevant in understanding the behavior of stars, galaxies, and other astronomical objects. By analyzing the Doppler shift, scientists can infer important information about the motion and velocity of celestial objects.

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The net force on particle q₃ is approximately 2576.08 N.

To calculate the net force on particle q₃, we need to consider the forces exerted on it by particles q₁ and q₂ due to their electrostatic interactions.

The electrostatic force between two charged particles can be determined using Coulomb's law, which states that the force between two charges is directly proportional to the product of their charges and inversely proportional to the square of the distance between them. Mathematically, the formula for the electrostatic force (F) is:

F = (k * |q₁ * q₂|) / r²

Where k is the electrostatic constant (k ≈ 8.99 × 10^9 N m²/C²), q₁ and q₂ are the charges of particles q₁ and q₂, and r is the distance between them.

First, let's calculate the force between q₁ and q₂:

F₁₂ = (8.99 × 10^9 N m²/C² * |-75.8 μC * 90.6 μC|) / (0.876 m)²

Plugging in the values:

F₁₂ ≈ (8.99 × 10^9 N m²/C² * 6.87508 μC²) / (0.876 m)²

≈ 563.78 N

Next, let's calculate the force between q₂ and q₃:

F₂₃ = (8.99 × 10^9 N m²/C² * |90.6 μC * -84.2 μC|) / (0.432 m)²

Plugging in the values

F₂₃ ≈ (8.99 × 10^9 N m²/C² * 7.62012 μC²) / (0.432 m)²

≈ 3139.86 N

To find the net force on q₃, we need to subtract the force F₁₂ from F₂₃:

Net Force = F₂₃ - F₁₂

= 3139.86 N - 563.78 N

≈ 2576.08 N

Therefore, the net force on particle q₃ is approximately 2576.08 N.

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Answer:

Explanation:

o calculate the current I, we can use Ohm's Law which states that I = V/R, where V is the total voltage across the resistor and R is the resistance of the resistor.

a) The total voltage across the resistor can be found by adding the voltage of the two batteries in series, which gives a total voltage of 8V + 4V = 12V.

So, I = V/R = 12V/4Ω = 3A.

b) The potential difference Uba is simply the voltage difference between the two batteries in the series combination, which is 8V - 4V = 4V.

c) When switch S is open, the circuit is broken and the potential difference Uba' becomes equal to the voltage of the 8V battery. So, Uba' = 8V.

The displacement amplitude of a tone with pressure amplitude of 0.30 Pa, angular frequency of 900 rad/s, in air with density of 1.3 kg/m3 and speed of sound of 340 m/s is 4.5 × 10-7 m.

We can use the formula for the displacement amplitude of a sound wave, which is:
displacement amplitude = pressure amplitude / (density of air x speed of sound)
Plugging in the given values, we get:
displacement amplitude = 0.30 Pa / (1.3 kg/m3 x 340 m/s)
displacement amplitude = 4.5 × 10-7 m
Therefore, the displacement amplitude is 4.5 × 10-7 m.

Summary: The displacement amplitude of a tone with pressure amplitude of 0.30 Pa, angular frequency of 900 rad/s, in air with density of 1.3 kg/m3 and speed of sound of 340 m/s is 4.5 × 10-7 m.

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Answer: 44m/s

Explanation:

Answer:

Density is the only thing affecting whether something floats or sinks . If an object has a higher density than the fluid it is in ( fluid can mean liquid or gas ) , it will sink . If it has a lower density , it will float . Density is determined by an object's mass and volume .

Hope this helps

ANSWER:

(a) 0.100 m^3

STEP-BY-STEP EXPLANATION:

We have that the force is equal to mass times gravity, therefore, we can calculate the mass, because the difference in force would be the volume of the stone.

Therefore

Now, we know that the density is equal to the quotient between the mass and the volume, therefore we can calculate the volume like this:

Therefore the volume of the piece is 0.100 cubic meters.

A baseball player launches a big home run to start the game. The ball leaves the bat with a speed of 40.0 m/s and an angle of 30.0° from the horizontal.

An item or particle that is propelled into a gravitational field, for example from the surface of the Earth, and moves across a curved route only under the influence of gravity is said to be experiencing projectile motion. Most calculations make the assumption that the effects of air resistance are passive and insignificant in the specific instance of Earth projectile motion. The curving path of objects in projectile motion was proved by Galileo to be a parabola, but it could also be a straight line in the specific situation when it is hurled directly upwards. One such trajectory is a ballistic trajectory, which is the study of such motions.

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When it comes to the transmission band, FM has a broader band compared to AM.

This is because FM signals have frequencies ranging from 88 to 108 MHz, which is a significantly wider range than AM signals, which have frequencies between 550 and 1,600 kHz. The wider frequency range allows for a larger bandwidth, which translates to higher quality sound and better reception with FM radio.

In addition to having a broader transmission band, FM radio signals are also less susceptible to interference from various sources such as power lines, thunderstorms, and other electrical devices. This is because FM radio signals are transmitted using frequency modulation, which involves varying the frequency of the carrier wave to transmit the audio signal. In contrast, AM radio signals use amplitude modulation, which can be disrupted by changes in the amplitude of the wave caused by interference.

Overall, while AM radio signals have their own advantages, including longer range and better penetration of obstacles, FM radio signals have a broader transmission band and higher quality sound, making it the preferred choice for music and other audio content.

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Answer:

\(a=3.17\ m/s^2\)

Explanation:

Given that,

Force force acting on the Skater's rocket is 220 N

Resistive force acting on it, F' = 30 N

Mass of Shelby, m = 60 kg

We need to find the acceleration of Shelby. Net force acting on Shelby is given by :

Net force = 220-30

= 190 N

The formula of net force is :

F = ma

a is acceleration of Shelby

\(a=\dfrac{F}{m}\\\\a=\dfrac{190}{60}\\\\a=3.17\ m/s^2\)

So, the acceleration of Shelby is \(3.17\ m/s^2\)

The eccentricity of an orbit when both focal points are located at the sun is zero.

What is an orbit?

An orbit is the trajectory, or path, of an object that revolves around another object, the center of mass or a gravitational point. All planets orbit the sun, and the moon orbits the earth, for example, An elliptical orbit is the shape of many planetary orbits.

As a result, the eccentricity of the orbit is significant.

What is Eccentricity?

The degree of circularity of an orbit is referred to as its eccentricity. When the distance between the two foci is divided by the length of the major axis, eccentricity is calculated.

A perfectly circular orbit has an eccentricity of zero.

An ellipse with an eccentricity of 1 is a parabolic orbit. When eccentricity is greater than one, the orbit is hyperbolic.

The eccentricity of an orbit when both focal points are located at the sun:

Since there is only one focus, and the center of the sun is located there, the eccentricity of such an orbit is zero. Because there is only one focus, the distance between the two foci is also zero.

As a result, a planet's orbit with a sun-centered focus is always circular.

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This is due to the fact that occluded fronts combine two cold air masses, which causes one of the cold air masses to go downward.

When a warm air mass is sandwiched between two cold air masses, an occluded front occurs. In an occlusion, the warm front passes over the cold front, which dives beneath it.

In a front is obscured, the warm front is fully supplanted by the cold front, in which the warm air masses have completely disappeared. Furthermore, there are frequent shifts in the various weather producing circumstances because of the cold front's relatively low temperature.

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Answer: The Coriolis effect results in bending the direction of surface currents to the right in the Northern Hemisphere and left in the Southern Hemisphere. The Coriolis effect causes winds and currents to form the circular patterns. The direction in which they spin depends upon the hemisphere in which they are present.Coriolis Effect is named after the French mathematician and physicist Gaspard-Gustave de Coriolis. It affects the weather patterns of an area, it affects the ocean currents, and it also affects air quality.

Yes, I'm aware of the fact that a 355 mL can of diet pepper will float in a lake, while a 355 mL can of regular pepper will sink. Based on this observation, we can conclude that diet soda is less dense than regular soda.

Density is defined as the amount of mass per unit volume of a substance. In this case, the density of diet soda is lower than regular soda because the former contains artificial sweeteners that have lower mass than the sugar used in regular soda.

As a result, a can of diet soda displaces less water than the same volume of regular soda, causing it to float while the regular soda sinks.

It's worth noting that the density of soda can also be affected by other factors, such as temperature and pressure. Additionally, density is not the only factor that determines whether an object will float or sink in a fluid. The shape and size of the object, as well as the properties of the fluid, also play a role.

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Answer:

The human body runs at a constant 37 ºC but the air around you at room temperature is about 20-25 ºC which means heat is constantly leaving your body to warm your surroundings and maintain thermal equilibrium. You don't lose much energy doing this however as air heats reasonably quickly

Explanation:

Answer:

so 9/3=3 current is 3 amperes

Explanation:

The fomula to calculate resistance is:

voltage/cutrent

9 V/3 A= 3 ohms

Answer:

hello your question is vague hence I will provide a general answer about what was known about atoms in the 19th Century

answer :

By the end of the 19th century more than half of the population believed in the presence of atoms and also in the 19th Century is was a known fact that atoms determine the chemical properties of an element

Explanation:

By the end of the 19th century more than half of the population believed in the presence of atoms and also by the 19th Century is was a known fact that atoms determine the chemical properties of an element.

John Dalton reintroduced the presence of atoms in 1800 with evidence which he used to develop atomic theory. with this theory people believed in the presence of atoms in nature and also that atoms determine the chemical properties of an element .

The dark fringes on either side of the central bright fringe in single-slit diffraction are caused by destructive interference. When light passes through a narrow slit, it diffracts, or spreads out, into a pattern of bright and dark fringes.

When waves of light pass through a narrow slit, they spread out in all directions, forming a pattern of bright and dark fringes. The pattern is a result of interference between the waves of light. When two waves meet, they can either add together (constructive interference) or cancel each other out (destructive interference), depending on the phase of the waves.


This interference pattern consists of a central bright fringe (maximum) surrounded by alternating dark (minimum) and bright fringes. The dark fringes occur when light waves from the slit destructively interfere with each other. This means that the crest of one wave coincides with the trough of another wave, resulting in their amplitudes cancelling each other out and creating a dark fringe. This pattern continues on either side of the central bright fringe, with the dark fringes becoming progressively less distinct as they move further from the center.

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The bowling ball experiences the greater magnitude impulse during the collision since it is initially at rest and is given the momentum of the small ball which has a speed of 5m/s.

The impulse of the bowling ball can be calculated using the equation impulse = change in momentum = mvf - mvi, where m is the mass of the bowling ball, vf is its final velocity, and vi is its initial velocity.

Since the bowling ball is initially at rest (vi = 0), the impulse can be calculated as mvf = m(5m/s) = 5m^2/s. The impulse of the small ball can be calculated in the same way, giving an impulse of 5m^2/s. Therefore, the bowling ball experiences a greater magnitude impulse during the collision.

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The wavelength of light must be absorbed to accomplish photosynthesis process is blue light.

Photosynthesis is a process in which green plants, blue-green algae capture light energy and convert into chemical energy. Photosynthesis depends on absorption of light by pigments in the leaves.

Wavelength is distance between successive crests of a wave especially in electromagnetic waves. Most important is the chlorophyll a, which is the universal pigment but there are several accessory pigments which helps in the process of photosynthesis.

Plant pigment absorb light in the wavelength range of 700 nanometer to 400 nanometer. It is said to be as photo-synthetically active radiation. Violet and Blue have the shortest wavelength and most energy while red has the longest wavelength and carries the least amount of energy.

One photon with just right amount of energy bump an electron between orbitals and can excite a pigment. This is why different pigments absorb different wavelength of light.

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The complete question is,

What is the wavelength of light that must be absorbed to accomplish this photosynthesis process?

Answer:

Instead, photosynthetic organisms contain light-absorbing molecules called pigments that absorb only specific wavelengths of visible light, while reflecting others. The set of wavelengths absorbed by a pigment is its absorption spectrum.

(a) the terminal voltage is 0.81 V

(b) the cell produces 1.955 W of electrical power, and

(c) the power delivered to the load is 1.377 W.

(a) To find the terminal voltage (Vt) of the cell, we can use the formula:

Vt = E - I * r

where

E is the cell's emf (1.15 V),

I is the current (1.70 A), and

r is the internal resistance (0.200 Ω).

Vt = 1.15 V - (1.70 A * 0.200 Ω) = 1.15 V - 0.34 V = 0.81 V

(b) To calculate the electrical power (P) produced by the cell, use the formula:

P = E * I

P = 1.15 V * 1.70

A = 1.955 W

(c) To find the power delivered to the load (P_load), use the formula:

P_load = Vt * I P_load = 0.81 V * 1.70 A = 1.377 W

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Answer:

Short

Explanation:

I took the same test

The type of circuit when there is a direct connection lies between two-points should be a short circuit.

It is not the normal condition with respect to an electric circult where the electric current should be flow via the non-intended, also there is short pathway rather following the circuit.

Moreover, there should be a direct linked between the two points in the circuit that supposed to be directly linked.

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Answer:

t = 2.40 s

Explanation:

It just told me

The cooling rate of the object is 0.054.

Let's find the cooling rate (k) of an object using the given information. Ts = 10 °CTo = 110 °CT1 = 35 °Ct2 = 25 minutes. Now, the given formula is T = Ts + (To - Ts) e ^ -kt. Here, we know that the temperature drops from 110°C to 35°C, which is 75°C in 25 minutes. Now, we will substitute the values in the formula as follows:35 = 10 + (110 - 10) e ^ (-k × 25) => (35 - 10) / 100 = e ^ (-k × 25) => 25 / 100 = k × 25 => k = 0.054. Therefore, the cooling rate of the object is 0.054. Hence, option A is correct.

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The specific heat of Al is greater than that of water. Therefore, adding Al wire will increase the temperature of water in the calorimeter. While adding the Pb pellets will decrease the temperature.

Calorimetry is an analytical technique used to determine the heat energy absorbed or released by a system. The calorimetric equation connecting the heat change q with mass of the substance m, specific heat capacity c and the temperature difference ΔT is:

q = m c ΔT

The specific heat of a substance is the heat energy required to increase the temperature by one degree Celsius per one gram. Higher the specific heat, higher be the rate of cooling or heating.

The heat gained by water from steel will be greater than that of Al because specific heat of steel is greater. Lead has very small specific heat and the temperature change will be smaller.

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Answer:

aluminum wire = 2.6c

steel wire = 1.5c

lead pellets = 0.8c

Explanation: