A piece of iron at 25 °C is dropped into a glass of water at 15 °C. Which statement is correct?

Heat will flow from the iron to the water in the glass until both reach the same temperature.
Heat will flow from the water in the glass to the iron until both reach the same temperature.
The final temperature of the water in the glass and the iron will be 25 °C.
The final temperature of the water in the glass and the iron will be 15 °C.

Answers

Answer 1

When a piece of iron at 25 degrees Celcius is dropped into a glass of water, whose temperature is 15 degrees Celcius, the heat will flow from the iron to the water in the glass until both reach the same temperature. This is because the one that is warmer would release more energy to the colder one.

Answer: Heat will flow from the iron to the water in the glass until both reach the same temperature

Credit to: @Samuelkenobi11

Answer 2

Final answer:

Heat will flow from the piece of iron at 25 °C to the colder water at 15 °C until both substances reach the same temperature due to the second law of thermodynamics.

Explanation:

When the piece of iron at 25 °C is dropped into a glass of water at 15 °C, heat will flow from the iron to the water in the glass until both reach the same temperature. This is a consequence of the second law of thermodynamics, where heat naturally flows from a hotter object to a colder one until thermal equilibrium is reached. Since the iron is at a higher temperature, it will lose heat to the water, which is at a lower temperature.


Related Questions

Decomposers are organisms that A. use sunlight to produce food. B. can only be seen using a microscope. C. feed upon living organisms. D. break down matter from dead plants and animals

Answers

the answer is d. break down matter from dead plants and animals

Answer:D. break down matter from dead plants and animals

Explanation:

Following a tornado a population of birds is separated and they settle in two very different habitats after a long period of time what is most likely to occur with natural selection

Answers

When a bird population is divided by a natural disaster like a tornado, habitat isolation and different environmental pressures lead to divergent evolution through natural selection, possibly resulting in speciation over time.

After a tornado, a population of birds is separated into two very different habitats. As a result of habitat isolation and differing environmental pressures, the process of natural selection will likely lead to divergence in the two bird populations. Each group of birds will adapt to the specific conditions of their new environment, resulting in evolutionary changes that may ultimately lead to the formation of new species over long periods of time.

In a bird population forced into a new habitat after a natural disaster, like a hurricane on the Mississippi Gulf Coast, individuals with traits better suited to the new conditions will have higher survival and reproductive rates. Over successive generations, these advantageous traits become more common. This selective pressure could lead to noticeable differences between the now-separated populations in behavior, physical characteristics, and even their genetic makeup.

An example of this can be seen during periods of drought, where food availability changes. Birds with larger and broader beaks may be better suited to consume large seeds with hard shells, which become more common during droughts. If these conditions persist, the population's characteristics may shift towards these advantageous traits guided by natural selection.

I need help i don't know the answer and the answer can you help me? you'll get 15 points if you answer this question

Answers

Answer: B

Explanation

Which age pyramid has the largest base of pre-reproductive population ?

Answers

Final answer:

The age pyramid with the largest base of pre-reproductive population is typically observed in countries with rapid population growth.

Explanation:

The age pyramid with the largest base of pre-reproductive population is typically observed in countries with rapid population growth, particularly in underdeveloped countries where individuals do not live to old age due to less-than-optimal living conditions. These countries often have a pyramidal age structure diagram, indicating a preponderance of younger individuals, many of whom are of reproductive age or will be soon.

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Final answer:

The age pyramid of economically underdeveloped countries tends to exhibit the largest base of pre-reproductive population. This comes from a high birth rate, but also a lower life expectancy. In contrast, developed countries usually have a smaller pre-reproductive population due to lower birth rates and higher life expectancies.

Explanation:

The age pyramid that has the largest base of pre-reproductive population is typically observed in economically underdeveloped countries. Age structure diagrams for these populations often have a pyramidal shape, indicative of a large young and pre-reproductive population. However, fewer of these individuals reach old age because of poor living conditions. For instance, in many parts of Africa and Asia where economic development is lower, there's a large preponderance of younger individuals (Figure 36.17).

On the contrary, developed countries like the United States and Italy exhibit a different age structure. These populations have a flatter structure or even a 'bulging' pyramid shape due to lower birth rates and higher life expectancy. Therefore, there's a lesser percentage of their population in the pre-reproductive age group (Figures 13.7 and 20.5).

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Contact metamorphism _____.
1.) is caused by high temperatures
2.) usually affects a very large area
3.)happens when mountains are formed
4.)occurs along fault lines

The answer is in this paragragh!!!!!!

[Diagram of location where contact metamorphism occurs] Contact metamorphism also happens at low pressure, but at high temperature. Magma from an intrusion contacts preexisting rock. It seeps into tiny spaces and heats the rock. Contact metamorphism affects a small area and forms fine-grained, non-foliated rock.

Answers

1.) is caused by high temperatures.

It says it in the very first sentence. That it happens at high temperatures.

Hope this helps.

Final answer:

Contact metamorphism is triggered by high temperatures from magma intrusion, affecting a small area and producing fine-grained, non-foliated rocks. Occurring at low pressure and relatively shallow earth's crust depths, it also involves hydrothermal fluids that alter the rock's mineral composition. This process differs significantly from regional metamorphism, which impacts large areas.

Explanation:

Contact metamorphism is caused by high temperatures and occurs when magma from an intrusion contacts preexisting rock, introducing heat into tiny spaces within the rock. This process happens at low pressure but at high temperatures varying widely from 400-1000°C. This type of metamorphism affects a small area, in contrast to regional metamorphism which affects large areas through extreme pressure from overlying rock or compression during mountain building processes. Contact metamorphism typically produces fine-grained, non-foliated rock due to the localized heat impact from the magma.

Hydrothermal fluids also play a crucial role in contact metamorphism by transporting heat and facilitating the alteration of the rock's mineral composition. Moreover, contact metamorphism commonly occurs at shallower depths of the earth's crust, where pressures are relatively low. The metamorphosed rocks are found in the aureole, the zone surrounding the body of magma where the heat impact is most intense. Interestingly, many profitable mines are located in these metal-rich aureoles, highlighting the economic significance of this geological process.

Which environment change is likely to allow the most individuals to survive


A. Transition from a meadow to a forest

B. Massive volcanic eruption

C. Oil spill in the bay

D. Acres - wide forest fire

Answers

I’m pretty sure the correct answer would be A.

Based on option A the transition is just more trees, which gives out more oxygen. B having a massive volcanic eruption can cause certian things to die off and could eventually kill off certian species and forms of air. Example would be killing of the trees. C oil spill in the bay can cause damage by pollution and dieing of species. D acres- wide forest fire. Again that would take away oxygen supply and take away natural habbitates of animals/species. There for the answer would be A.

What water temperatures and resulting weather conditions are typically associated with El Niño?

A. Cooler waters warmer-than-average temperatures.

B. Cooler waters bring cooler-than-average temperatures

C. Warm waters bring warmer-than-average temperatures

D. Warm waters bring cooler-than-average temperatures


PLEASE HELP

Answers

I think it’s C, bc an El Niño happened in the pacific, with warm water is stopping the cold water from rising.

What's the role of a primary consumer in the food web? A. To eat secondary consumers and produce energy B. To combine parts of the ecosystem into one nutrient C. To eat producers and produce energy D. To break down organic matter in the soil

Answers

The answer is C To eat producers and produce energy

Answer:

C. To eat producers and produce energy.

Explanation:

In a food chain, a series of organisms are linked to together in a process whereby one eats the other and provides energy at each trophic level.

Every food chain typically starts with the producers who obtain the energy either through the sun or chemicals and make their own food,

The organisms who eat the producers are known as primary consumers and they are the ones who provide energy to the next trophic level of the secondary consumers .

The food chain is as follows:

Producer (plant) ---> primary consumer (herbivore)---> secondary consumer (carnivore)- --> tertiary consumer

15. Which is not a problem associated with the increased use of nuclear energy?

Answers

Increased use of nuclear energy is increased power sources to other places.

What is the difference between the two types of consumer

Answers

Answer:

there's primary consumers and secondary consumers. the primary consumers eats the producers and there herbivores. the secondary consumers eats the primary consumers and they can be omnivores

Explanation:

Jessica recently moved to an apartment in the industrial area of Readington City. She noticed that the roads in her neighborhood warm up quickly. She also noticed that the temperature in her apartment is typically much warmer than the temperature of her previous apartment, which was near the mountains on the outskirts of the city. What is responsible for the change in temperature?

A. Urban areas absorb more of the Sun’s radiation.
B. Mountainous areas don’t absorb the Sun’s radiation.
C. Mountain areas experience more precipitation.
D. Urban areas experience lower precipitation.

Answers

the answer is A. because the roads are black and take in more light which makes the area hotter

Answer:

The correct answer is option A, that is, urban areas absorb more of the Sun’s radiation.

Explanation:

The cause for the urban regions exhibiting a warmer climate in comparison to the mountainous regions is the maximum captivation of the radiation of the Sun by these regions. This is termed as the urban heat island effect. This results in the air to be warmer in comparison to the other regions.  

There are various causes related to the elevation in the temperature. One of the causes is exhibiting a huge number of roads and buildings in the urban regions. This takes part in the captivation of the heat from the Sun. Another cause is the absence of green plants, which absorbs the heat and the cools the surrounding.  

How does radiation from the sun affect earth?

Answers

The Sun's affect on global warming can mostly be attributed to variations in the near-infrared and visible wavelengths of solar radiation. As previously stated, these types of radiation are absorbed by the lower atmosphere, the oceans, and the land

Final answer:

Solar radiation is absorbed by Earth's surface, causing warming, while some is reflected back into space. It affects the ionosphere by altering its height due to ionization and can disrupt satellites. Additionally, it plays a key role in the greenhouse effect and Earth's radiation balance.

Explanation:

The effect of solar radiation on Earth is extensive, influencing numerous aspects of the environment. When radiation from the sun reaches Earth, it is mostly absorbed by the Earth's surface, which warms our planet. However, some of this energy is reflected back into space by the surface and atmosphere.

Radiation also impacts the ionosphere, a layer high in Earth's atmosphere. The ionosphere's boundary fluctuates between approximately 60 kilometers during the day to about 85 kilometers at night due to the sun's ionization effects. Solar radiation, which includes X-rays and gamma rays, creates ionization levels similar to those during the daytime, and it can even prompt sensitive satellites to shut down their electronics to protect against damage.

Most solar radiation falls within the visible spectrum, but ultraviolet radiation is also significant as it is absorbed on its way to Earth's surface, lessening UV levels experienced on the ground. The Earth emits radiation too, but in longer, infrared wavelengths which are associated with the greenhouse effect. Greenhouse gases absorb this infrared radiation and re-emit it, causing warming of the Earth's surface and lower atmosphere.

The radiation balance of the Earth is critical; the planet must emit as much energy as it absorbs to maintain a stable temperature. When greenhouse gases absorb and re-emit radiation, they contribute to this dynamic balance but also cause global temperatures to rise under certain conditions.

Burns are devastating and debilitating because of loss of fluids and electrolytes from the body. How do physicians estimated the extend of burn damage associated with such dangerous fluid loss?

Answers

burns are estimated by class, 1st degree, 2nd degree, etc. there are characteristics associated with each degree. if you can see the muscle and fat tissue, that would be a 4th degree burn...

The extent of burn damage and fluid loss is estimated by physicians using the rule of nines, which relates body surface area to burn size. Severity is also classified by the degree of burn, from first to fourth degree. This information guides treatment decisions, addressing dehydration, electrolyte imbalance, and infection risks.

Physicians estimate the extent of burn damage and the associated dangerous fluid loss primarily through a method known as the rule of nines. This technique measures the size of the burn in relation to the total surface area of the body by associating specific anatomical areas with a percentage that is a multiple of nine. For instance, the entire arm is approximately 9% of the body surface area. Understanding the extent of the burn is essential for determining the appropriate level of care, such as the need for specialized treatment, intravenous fluids to counteract dehydration, and electrolyte balance, as well as to gauge the risk of infection and the requirement for procedures like debridement or skin grafting.

Burns are also classified by the degree of their severity, ranging from first-degree burns, which are superficial, to fourth-degree burns, which involve the underlying muscle and bone and can be life-threatening. In addition to the extent and degree, assessing the fluid loss and electrolyte imbalance is crucial for patient care, addressing the potential risks of dehydration, renal and circulatory failure, and the necessity for infection prevention.

Which of the following factors is biotic?

Answers

it’s food i have to have 20 characters so

Biotic factors are the living components of an ecosystem.

I believe the correct answer is C food. Food meaning plants, berries, and living consumable organisms.

Many human diseases follow the dominant/recessive pattern of inheritance. If an individual possesses an allele for a disease, but does not have the disease, this person is known as a ___________.

Answers

That person is called a carrier of whatever trait it is, it isn’t always a disease.

Scientists who use principles to develop new technology work in the field of ___ science.

Answers

um i think its mechanical. because mechanical science is a field of science that invents technology. and uses principles to do so.

can i get brainiest.

Answer:

The answer is applied science.

Why is biomass a better alternative to coal

Answers

Is this multiple choice?

Biomass has it's advantages and disadvantages. Biomass is a type of fuel that is not a limited substance, while coal is very limited. While this may be true, biomass in some ways is more expensive than coal. It also causes the same amount, or more, air pollution. Biomass as well does not create as much fuel when it's burnt in terms of carbon dioxide.

Because it can be created from sources that are renewable and can be continuously replenished, such as garbage and plants, bioenergy, also known as energy obtained from biomass, is a sustainable substitute for fossil fuels.

What is biomass?

Organic material, including plants, trees, and garbage from the agricultural and urban sectors, is the source of biomass.

It can be used as a fuel for transportation as well as for heating. By using biomass more frequently, the EU can diversify its energy sources, spur economic expansion and job development, and reduce greenhouse gas emissions.

All kinds of wood debris can be used in a wide range of biomass technologies and generate great biomass fuels.

Bioenergy, also known as energy from biomass, is a sustainable alternative to fossil fuels since it can be produced from renewable and perpetually replenishable sources like trash and plants.

Thus, it can be concluded that biomass is a better alternative to coal.

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Determine 3examples of surface water

Answers

Answer:

The example of surface water are lakes, creeks and streams etc

Explanation:

Surface water is the kind of water which is found above the earth's surface. It can be compared with groundwater and atmospheric water which is found below or above the surface of earth. Surface waters include streams, rivers, lakes, reservoirs, and wetlands because all of these sources are found on the surface of earth.

How many calories does tali’s have

Answers

250 calories in a small bag

150 calories per serving

Pretty sure they have 36 calories per a tbsp.

Climate is primarily determined by the interaction of the air and _____. oceans winds lithosphere plants

Answers

Answer: Oceans

Explanation:

Climate is primarily determined by the interaction between air and ocean. The warm wind circulate and makes the temperature feasible for life.

Oceans heat the air above it and it circulates from the equator region to the polar region to make the temperature optimum. The circulation of air due to ocean leads to climate change.

hence, these two factors are responsible for the climate of a region.

Answer:

oceans

Explanation:

Which answer lists different behavioral responses that some animals use as defense mechanisms?

A) camouflage, mimicry, and stingers *


B) hibernation and migration


C) courtship and breeding behaviors


D) nesting and food gathering

Answers

You answer to this question will be: A) Camouflage, Mimicry, and Stingers*

I’m almost positive the answer is choice A

What is an explanation of why producers are always found at the lowest trophic level?

Answers

This answer is probably late, but the answer that you put is right :) ( C.)

Explanation:

The reason why producers are always found at the lowest trophic level is because there is no need for them to consume other organisms (or living things) to be able to get their energy.

In other words, they do not need to consume living things to produce energy. They make their own food.

Hope this helps! :)

In the lowest tropic level, it is found that the Producers convert that the trapped light energy into the chemical energy.

What is meant by lowest tropic level?

The first and lowest level contains the producers, green plants. The plants or their products are consumed by the second-level organisms, the herbivores, or plant eaters. At the third level, primary carnivores, or meat eaters, eat the herbivores; and at the fourth level, secondary carnivores eat the primary carnivores.

Plants have a pigment known as chlorophyll which is present in chloroplast which has the ability to entrap sunlight and help in photosynthesis.

During photosynthesis, chlorophyll captures the sun rays and creates sugary carbohydrates or energy.

Hence, the plant constitutes the lowest part of the tropic system. And it converts light energy into chemical energy. The correct option is C).

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based on the pictures of homologous structures in each organism, what do you think a homologous structure is

Answers

A homologous structure is an example of an organ or bone that appears in different animals, underlining anatomical commonalities demonstrating descent from a common ancestor. In other words, it's when very different animals have bones that appear very similar in form or function and seem to be related.

A homologous structure is an example of an organ or bone that appears in different animals, underlining anatomical commonalities demonstrating descent from a common ancestor. In other words, it's when very different animals have bones that appear very similar in form or function and seem to be related.

In any ecosystem, blank are the point for energy for new energy.

A) consumers

B) detritivores

C) heterotrophs

D) producers ​

Answers

In any ecosystem, producers are the point for energy for new energy.

Hope this helps,

Davinia.

The answer is D producers

Name three ideas about geologic change

Answers

Answer:

catastrophism

gradualism

uniformitarinism

Explanation:

There were several theories associated with evolution. In the theory, evolution was defined as the biological change process that has decedents originate from different ancestors.

Uniformitarinism is the prevailing theory of evolution. It focuses on the formation of the rocks and the earth as we know it today

Gradualism focuses on the gradual change over a long time.

Catastrophism focuses on the catastrophic formation of matter from a mass of matter.

Three ideas about geologic change are Plate Tectonics, Weathering and Erosion, and Climate Change.

1. Plate Tectonics: Plate tectonics is a widely accepted scientific theory that explains how the Earth's lithosphere (the rigid outer layer) is divided into several large plates that move and interact with each other.

These plates can collide, separate, or slide past each other, causing various geological phenomena.

2. Weathering and Erosion: Weathering and erosion are processes that contribute to the transformation and transportation of rocks and landforms.

Weathering refers to the breakdown and alteration of rocks at or near the Earth's surface due to physical, chemical, and biological processes. It includes processes like freeze-thaw cycles, chemical reactions, and the actions of plants and animals.

3. Climate Change: Climate change refers to long-term shifts and variations in global or regional climate patterns. It is driven by various factors, including natural processes and human activities.

Geological evidence, such as ice cores, sediment layers, and fossil records, provide insights into past climate changes that have occurred over millions of years.

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which list shows the processes of respiration in the correct order?

Answers

Final answer:

The correct order of the processes of respiration starts with pulmonary ventilation, followed by external respiration, then inter-pulmonary respiration, and ending with internal respiration.

Explanation:

The processes of respiration should be in the following order:

pulmonary ventilation

,

external respiration

,

inter-pulmonary respiration

, and then

internal respiration

Pulmonary ventilation is the first step in the respiratory process where the air is moved into and out of the lungs. External respiration is the exchange of gases with the external environment and it occurs in the lungs. Interpulmonary respiration refers to the transportation of gases between the lungs and the cells of the body, this is conducted by the circulatory system. Finally, internal respiration is the process in which oxygen is used for the metabolic reactions in cells and carbon dioxide, as a byproduct, is produced.

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What is not true concerning the flow of energy through an ecosystem

Answers

A lot of the energy from photosynthesis flows out as heat.

^answer

When energy is being transported or flowed through the ecosystem most of the heat is lost.

Hope this helps!

When an organism is finished growing, which of the following best describes what happens on the cellular level?
A. Its cells stop reproducing.
B. Its cells reproduce and die at the same rate.
C. Its cells stop growing.
D. Its cells grow and shrink at the same rate.

Answers

it’s cells reproduce and die at the same rate

Answer: Option B

Explanation: When the organism has stopped growing then there is no visible growth in the body of the organism.

When the cells proliferate and dies at the same rate, the change is zero and the body seems to be finished growing. This can be described on the cellular basis that the number of cells remains constant as the rate of proliferation and death is same.

Main ideas are not identified within an outline.
Please select the best answer from the choices provided
T
F

Answers

The statement is false. Main ideas are identified within an outline.

An outline is a useful guide that a person uses before writing his/her essay in order to organize the ideas that are going to be discussed in it. A person can start working on an outline, one of the steps of the prewriting stage, after the topic of the essay has been chosen.

Answer: false  reeeeeeeeeeee

Explanation:

Who is Charles darwin? What were some of his contributions to the theory of evolution

Answers

Darwinism is a theory of biological evolution developed by the English naturalist Charles Darwin 1809–1882 and others, stating that all species of organisms arise and develop through the natural selection of small, inherited variations that increase the individual's ability to compete, survive, and reproduce.

Charles Darwin:

Charles Darwin was an English biologist, naturalist and others. He contributed to science in many different way, but he's most regarded for his evolution theory which can be found in his famous book, On the Origin of Species.

Evolution, Darwinism:

When he first published his book many people thought he was crazy and that his theory was a total blasphemy, and they even created what we would now call a meme, as we can see in the first image. Turns out, the book was published in  1859, which meant he had enough evidence to prove his theory due to the fact that in 1831 he did his famous voyage in the HMS Beagle to the Galapagos, where he studied different species of finches.

But, going deeper in to the theory, he suggested that animals developed in tiny steps as natural selection went causing modifications to their genes so that they could be more competitive in their environment. That was also part of his proposal to how new species originated - at one point, so many changes would have occurred that the product of natural selection would be a total new species.

A visual way of representing his theory would be with the famous "monkey-scale" where we can see how our upright and non-hairy appearance originated, as we can see in the second image.

Hope it helped,

BiologiaMagister

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