1,000 J of heat is added to 50 g of water. What is the change in temperature of the water?
options :
20° C
4.18°C
718°C
4.78°C

Answers

Answer 1

The change in temperature of the water is 4.78°C, which corresponds to option D.

What is the heat transfer equation?

The heat transfer equation may be written as Q = m c T, where Q is the amount of heat transmitted, m denotes mass, c denotes specific heat, and T denotes the temperature difference. Heat transfer is the process by which heat is transferred from a hot item to a cold object.

ΔT = Q / (m * c)

where T is the temperature change, Q is the heat contributed, m is the substance's mass, and c is its specific heat capacity.

Plugging in the given values, we get:

ΔT = (1000 J) / (50 g * 4.18 J/(g°C))

ΔT = 4.78°C

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Related Questions

Which of the following is a way to use a plant’s DNA in forensic science?
a.
A forensic scientist can use a plant’s DNA to prove a suspect was in the area of a crime.
c.
A forensic scientist can add a plant’s DNA to a DNA sample to make it large enough to test.
b.
A forensic scientist can use a plant’s DNA to identify a victim’s father.
d.
All of these are ways a forensic scientist can use a plant’s DNA.

Answers

Answer: I believe the answer is A using a plant's DNA to prove a suspect was in the area of a crime.

Explanation:

Globalization makes new forms of consumption possible, but the effects of globalization on an individual’s lifestyle vary based on many factors including socioeconomic status. In what ways is globalization experienced differently by people from wealthy countries compared to people in developing countries? How are the producers of commodities like food or clothing affected differently by globalization than consumers? Anthropology

Answers

Globalization allows individuals in wealthy countries to have access to a wider variety of goods and services, while those in developing countries often experience exploitation and increased inequality.

Producers of commodities may experience increased competition and pressure to lower costs, while consumers benefit from lower prices and greater availability.

What is Globalization?

Globalization is experienced differently by people from wealthy countries compared to people in developing countries in several ways. Wealthy individuals have greater access to technology and information, which allows them to participate in global markets and consume goods and services from around the world. They also have greater mobility, allowing them to travel and experience different cultures. In contrast, people in developing countries may experience the negative effects of globalization, such as exploitation and displacement, as corporations seek to exploit cheap labor and resources in these countries.

The producers of commodities like food or clothing are affected differently by globalization than consumers. Globalization has led to increased competition among producers, which can drive down prices and reduce profit margins. This can lead to job losses and economic instability in producing countries. At the same time, globalization can also provide new markets for producers and access to new technologies and resources, which can improve efficiency and profitability. For consumers, globalization has led to greater choice and lower prices, but also concerns about the exploitation of workers and environmental degradation in producing countries. Overall, the effects of globalization are complex and varied, and depend on a range of social, economic, and political factors.

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Evolution in the real world-

Please help with these questions (3&4)

Answers

Evolutive forces change allelic and genotypic frequencies in a population. 3) a- Redish egret population in the US were hunted to near extinction in the early 1900's and the majority of survivors were the dark-feathered morph. 4) a- Bottleneck effect, b- Gene flow, c- Founder effect, d- Natural selection.

What are the evolutive forces?

For a population or a species to evolve, it must be submitted to an evolutive force.

Evolutive forces are those that change a population's allelic and genotypic frequencies through generations. Otherwise, the population is in equilibrium.

These forces are,

Natural selectionGene flowGenetic drift (bottleneck-effect and founder effect)Mating systems (random or non-random)

Notice that mutations are not evolutive forces by themselves. They need to be selected by natural selection to cause a change at a population level. However, they are considered to influence evolution.

In the exposed example,

Dark-feathered Reddish egrets ⇒ USWhite-feathered Reddish egrets ⇒ Bahamas

3) a- Redish egret population in the US were hunted to near extinction in the early 1900's and the majority of survivors were the dark-feathered morph.

4) a- Bottleneck effect

   b- Gene flow

   c- Founder effect

   d- Natural selection

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What distinction does the Isle de Jean Charles in Louisiana hold?
Please choose the correct answer from the following choices, and then select the submit answer button.
Answer choices

It will be the first U.S. community to receive climate refugees from New Orleans.

It is the first U.S. community to receive federal dollars to fund relocation.

It is the only U.S. community on the Gulf of Mexico to be gaining land.

It has escaped the hurricane damage that has devastated the rest of the Gulf coast.

Answers

It will be the first U.S. community to receive climate refugees from New Orleans distinction does the Isle de Jean Charles in Louisiana hold

Why is Isle de Jean Charles such a big deal?

It serves as the centre of our Tribe and its customs. It is where our ancestors found refuge after being uprooted by laws from the time of the Indian Removal Act, and it is where we developed what has turned into a distinctive aspect of Louisiana culture. The land that has provided for us for many centuries is disappearing right before our eyes right now.

Only a dozen of the tribe's almost 700 members were left residing on their eponymous island in 2022.

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Which of the following is a true statement?
A. Sister chromatids are held together by condensins.
B. Ligation and hydrogenation are the most common ways cells regulate the activity of a protein.
C. The first readily visible sign that a cell is about to enter the S phase is ubiquitylation of chromosomes.
D. In a typical somatic cell, interphase is the longest phase of the cell cycle.
E. The cell-cycle control system depends on cyclically activated carrier GTP molecules.

Answers

Answer:

e the reason why because it's right

You can express the relationship of wavelength and frequency with ratios. The wave on the left has a ratio of 1:4 wavelength to frequency. For every one wavelength, four seconds passed. What would the ratio be for two waves that traveled a total of 12 seconds?

Answers

Answer:

Requency and wavelength are inversely proportional to each other. The wave with the greatest frequency has the shortest wavelength.

Explanation:

Hope it helps

Inside a cell, there are 30 sodium ions and 20 potassium ions. If the sodium-potassium pump uses two molecules of
ATP, determine how many ions of sodium and potassium will be left inside the cell. Explain your reasoning.

Answers

After the sodium-potassium pump uses two molecules of ATP, there will be 28 sodium ions and 22 potassium ions left inside the cell.

There were 30 sodium ions and 20 potassium ions inside the cell. With the help of the sodium-potassium pump, two cycles of ion exchange can occur, utilizing two molecules of ATP. In the first cycle, three sodium ions are transported out of the cell, and two potassium ions are transported into the cell. As a result, the number of sodium ions decreases by three to 27, and the number of potassium ions increases by two to 22.

In the second cycle, another three sodium ions are transported out of the cell, and two potassium ions are transported into the cell, which results in 24 sodium ions and 24 potassium ions. However, the total number of ions inside the cell is still 48, which is not the same as the initial number. Therefore, one more cycle is required, resulting in 28 sodium ions and 26 potassium ions inside the cell.

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Look at the graph and explain what is happening at each of the points labelled A to E. (5)

Answers

Answer:c

Explanation:

3.2.2 Quiz: Balancing Chemical Reactions
Question 1 of 10
Which statements are true about balancing chemical equations?
Check all that apply.
A. Balancing chemical equations does not involve trial and error.
B. Balancing chemical equations involves trial and error.
C. Atoms that are in only one of the reactants and only one of the
products should be done last.
D. Single atoms should be done last.

Answers

The correct responses are B. Balancing chemical equations involves trial and error and C. Atoms that are in only one of the reactants and only one of the products should be done last.

What is chemical equation?

A chemical reaction is symbolically depicted by a chemical equation. The equation displays the reactants, or the substances that undergo a chemical change, on the left side and the products, or the substances that are created as a result of the chemical change, on the right side.

It takes some trial and error to balance chemical equations since the reactants' and products' coefficients need to be changed to make sure that each element has the same amount of atoms on both sides of the equation.

Additionally, since altering their coefficients would only influence one side of the equation and may disturb the equilibrium of the other elements, atoms that are present in just one of the reactants and only one of the products should be handled last. In general, it is preferable to balance the most complicated molecules first, along with those that include many atoms of a single element, before moving on to the smaller molecules and single atoms.

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PLEASE ANSWER ASAP!
The biologist shares his graph showing the results of an experiment that measured the concentration of zooxanthelle of shallow-water coral in picograma per cell.

Answers

The shallow water ecosystem depends on water temperatures below 30°C to maintain the symbiotic relationship between corals and zooxanthelle.

What is the relationship between water temperature and coral reefs?

Water temperature has a significant relationship with coral reefs. Coral reefs are composed of tiny marine animals called coral polyps that build a calcium carbonate skeleton.

These animals live in a symbiotic relationship with photosynthetic algae called zooxanthellae, which provide them with food and give the reefs their vibrant colors. However, this relationship is sensitive to changes in water temperature.

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Select the one true statement.
1. Mitochondria direct cell activities by sending instructions to different parts of
a plant cell.
2. Chloroplasts break down sugar to release energy that a plant cell can use.
3. The cell wall makes a plant cell strong and rigid.

Answers

3. The cell wall makes a plant cell strong and rigid.

During DNA replication how is the leading strand built

Answers

Answer:

B. Continuously, as nucleotides are added to the 3' end

Explanation:

The leading strand is synthesized by adding nucleotides to the 3' end of the growing strand, and the lagging strand is synthesized by adding nucleotides to the 5' end.

The lagging strand is synthesized continuously, whereas the leading strand is synthesized in short fragments that are ultimately stitched together.

Hope this helps!

Final answer:

The leading strand in DNA replication is synthesized continuously by DNA polymerase in the 5' to 3' direction from the origin of replication.

Explanation:

During DNA replication, the leading strand is built continuously in the 5' to 3' direction by DNA polymerase. DNA polymerase adds deoxyribonucleotide (dNTP) to the 3' end of the DNA. The replication begins at a specific point in the DNA molecule called the origin of replication. Here, the DNA helix is separated by the enzyme helicase, which forms a structure known as the replication fork. In this structure, on the leading strand, the DNA polymerase is moving in the same direction as the replication fork, allowing it to read the original DNA strand and synthesize the new strand continuously.

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A population of rabbits in an area of Northem Florida was monitored to lear more about the biotic and abiotic factors that affect the population size. The
Rabbit Population Growth
graph shows data collected about the rabbit population size for 30 generations.
Based on the data on the right, what can be correctly stated about the rabbit
1500
population?

Answers

Any of these elements, including food, housing, breeding locations, predators, and others, may serve to restrict the population increase of rabbits or toads.

What is the name for a group of rabbits?

Large warrens typically indicate a large rabbit population. Despite being nocturnal by nature, rabbits will emerge during the day if they are not disturbed, particularly in the long summer days. Social groups can range in size from just one pair to as many as 30 rabbits sharing a warren.

What is a model for the increase of the rabbit population?

Population growth models. Imagine that a pair or rabbits only reproduces once a year, giving birth to an 8-rabbit litter. If each baby rabbit matures after a year and reproduces annually, the population spanning rabbits would increase to 5 million over a period of ten years.

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How are folding and faulting similar? How are they different?

Answers

Folding and faulting are similar in that they both involve the deformation of rock layers in response to stress and difference between folding and faulting is the nature of the deformation.

How are folding and faulting similar and different?

Folding and faulting are the two processes that occur in the Earth's crust due to tectonic forces. They are similar in that they both involve deformation of rock layers in response to stress, and they can both result in the formation of mountains and other topographic features.

The main difference between folding and faulting is the nature of  deformation. Folding occurs when rock layers are bent or curved without breaking. This can result in the formation of large-scale folds, such as synclines and anticlines, which are characterized by downward and upward curves, respectively.

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Which of the following describes Aristotle's method of classifying organisms?
a. Aristotle categorized organisms as either plant or animal.
b. Aristotle created a hierarchy of life based on complexity.
c. Aristotle cataloged only animals and divided them into carnivores and herbivores.
d. Aristotle classified organisms based on geographic location.

(i think a or b)

Answers

Animal or plant-based organisms were how Aristotle divided the world.

What system of classifying organisms did Aristotle use?

Aristotle developed the first system for classifying animals. Based on morphological traits, he divided organisms into two groups, each with five genera, and then into species within each category. He used animal observations to inform his classification scheme.

What was the classification theory of Aristotle?

He created the first system of categorization that separates life into animals and plants. The plants are divided into herbs, shrubs, and trees according to morphological traits, and the animals are categorised according to whether they live in aquatic habitats, terrestrial habitats, or both.

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Describe the texture of the marrow from the beef bone.

Biology question

Answers

Answer: Bone Marrow texture best described as a Thick Beefy Butter

Explanation: Raw Bone Marrow will smell fresh and slightly sweet. When cooked, its aroma deepens considerably to that of roasted fatty beef.

I need help pleaseeeeee

Answers

Answer:

Ecosystem and biome only.

Explanation:

This is because the communities and population are the counts of how many and what species of animals live in the specific community or population.  The abiotic factors are things that aren't living, so animals wouldn't be counted.

Which of the following did Mendel conclude about patterns of inheritance?
A) An organism inherits one gene in total
B) An organism inherits two genes of a given trait during gamete production
C) Similar forms of genes account for variation in the inherited traits.
D) An organism inherits one gene for each trait

Answers

The following Mendel concluded about patterns of inheritance : C) Similar forms of genes account for variation in the inherited traits.

What did Mendel conclude about patterns of inheritance?

Mendel concluded that inheritance is determined by discrete units called genes, which are passed down from parents to offspring in a predictable manner.

He observed that some traits are dominant over others, and that these dominant traits can mask the expression of recessive traits. Mendel also proposed the Law of Segregation, which states that during gamete formation, the two alleles of a gene separate from each other so that each gamete carries only one allele for each gene.

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Answer:

B.

Explanation:

20. Phylogenetic tree are used to help show which creatures are most closely related to each other. In the diagram below,
common ancestor. The line from the chicken and the line from the dinosaur connect, so they would have a common
the red dot shows the most common ancestor between a chimpanzee and a human. When two lines come together, there is a
ancestor. All the lines at the bottom connect, this would be the least common ancestor, but they are still related.
Chimpanzee
Human Chicken
Dinosaur
Most recent common
ancestor

Answers

Answer: a

Explanation: the explanation is

Why does fragmented forest habitat increase the risk of predation on bird nests by cats, dogs, raccoons, and other animals? Responses Birds will prefer to make their nests at the edges of forest habitat. Birds are forced to build nests on the ground instead of in protected trees. Predators have an easier time spotting bird nests in fragmented habitat. Predators are more common at the edges of fragmented habitat.

Answers

The borders of fragmentation habitat are where predators are more prevalent.

What impact does deforestation have on bird breeding habits?

Bird populations are directly impacted by deforestation, mostly due to the destruction of their habitat. A bird's environment serves as its home, and deforestation robs them of their habitat. Many birds are unable to procreate when they are removed from their native habitat, which ultimately causes a reduction in their number.

What impact does deforestation have on animals and birds?

Due to the drastic changes it causes to vast areas of ecosystems and habitats, deforestation is one of the land uses that has the greatest impact on migrating birds. The effect of land usage on tropical forests may clearly be seen from above.

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3. A mass spectrometer is used to get information from
(a) Plants
(c) Rocks
(b) Rubber
(d) Concrete​

Answers

Answer: Rocks

Explanation:

Which phrase best describes what happens to the matter in nail polish remover as it evaporates?

it is destroyed
It disappears
it is converted into energy
it changes form

Answers

it changes form phrase best describes what happens to the matter in nail polish remover as it evaporates

What transpires to the substance in nail paint remover when it dries up?

Cooling is caused by evaporation. While evaporating, a substance's particles absorb heat energy from its environment and transform into vapour. The low boiling point of acetone is 56 C. Acetone readily evaporates by absorbing heat from our hands when we hold it in our hands.

If nail paint gets on skin, it dries off very quickly. So there is no chemical reaction or change in the substance's identity; rather, liquid nail paint turns into gaseous nail polish. So, this is a bodily alteration.

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Name and explain the purpose of one law that protects citizens against Gender based violence

Answers

Answer:One law that protects citizens against Gender-Based Violence is the Violence Against Women Act (VAWA) in the United States. The purpose of this law is to provide comprehensive and coordinated responses to domestic violence, sexual assault, dating violence, and stalking. It aims to improve the criminal justice system's response to these crimes, enhance support and services for victims and survivors, and increase awareness and prevention efforts. VAWA also includes provisions that specifically address the needs of marginalized and underserved populations, such as Native American and immigrant women, and prohibits discrimination on the basis of gender identity or sexual orientation. Overall, VAWA seeks to promote gender equality, safety, and justice for all individuals affected by gender-based violence.

Explanation:

Describe what happens to the number of antibodies produced by the body if HIV is left untreated around 120 months. What could explain this?

Answers

HIV infection left untreated lowers CD4+ T cell counts, weakening the immune system and lowering antibody production. It may also be more difficult to create efficient antibodies as a result of virus mutations.

What impact does HIV have on the generation of antibodies?

Helper T cells are specifically targeted by the HIV virus. Without enough Helper T cells, the immune system cannot direct B cells to produce antibodies or Cytotoxic T cells to destroy infected cells.

What transpires to the immune system over a prolonged HIV infection?

Over time, HIV weakens the immune system, making it more challenging for the body to fight against infections. AIDS (Acquired Immune Deficiency Syndrome) is brought on by HIV. Before turning into AIDS, HIV can persist in a person for a long time.

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20. Which sector creates the most fossil fuel emissions?
agriculture
industry
electricity generation
transportation
All changes saved

Answers

Transportation because it is petroleum based

Explain why rainforests are important to Western medicine.
Which of the three substances has the greatest porosity?
a.
gravel
b.
sand
c.
silt
d.
all are equal

Answers

Rainforests are important to Western medicine because they are home to a vast array of plant and animal species that have been used for centuries in traditional medicine by indigenous people. Many of these species contain compounds that have been found to have therapeutic properties and have been developed into drugs and treatments for various medical conditions, including cancer, malaria, and hypertension.

B. Sand typically has the greatest porosity, meaning it has the most open spaces or pores compared to gravel and silt. This allows water and air to move more easily through the substance.

What is the origin of the term cell in biology?

Answers

Answer:

The Origins Of The Word 'Cell' In the 1660s, Robert Hooke looked through a primitive microscope at a thinly cut piece of cork. He saw a series of walled boxes that reminded him of the tiny rooms, or cellula, occupied by monks. Medical historian Dr. Howard Markel discusses Hooke's coining of the word "cell."

Les fossiles temoigent :

Answers

"Les fossiles témoignent" is a French phrase that means "Fossils bear witness" or "Fossils testify" in English. Fossils are the preserved remains, traces, or impressions of prehistoric organisms that provide important evidence of the history of life on Earth. They can reveal information about the physical characteristics, behavior, and habitat of extinct species, as well as the geological processes that shaped the planet over millions of years. By studying fossils, scientists can reconstruct the evolutionary relationships between different species and track the changes that have occurred over time. Fossils are therefore a valuable source of information for understanding the history and diversity of life on Earth.

what roles might each layer of the atmosphere have

Answers

Answer:


Troposphere - It is the layer just above the earth’s surface whose distance is between 0 - 10km. It contains most of the air and oxygen which is essential for all living organisms. This air is used for respiration and other functions for the survival of human beings. It also forms the weather conditions of the earth.


Stratosphere - The layer above the troposphere at a distance between 10 - 50km above the earth’s surface. It consists of the ozone layer which protects the earth from ultraviolet rays of the sun. 


Mesosphere - The layer above stratosphere at a distance between 50 - 80km above the earth’s surface. This layer is very cold and burns most of the meteors preventing them from reaching the earth’s surface.


Thermosphere - The layer above the mesosphere at a distance between 80 - 320km above the earth’s surface.

. The question below is an incomplete sentence. Choose the word that best completes
the sentence.
the Constitution breaks the U.S. government into three branches.
A. Although
B. Instead
C. In conclusion
D. Before
ReadWorks.org-2021 ReadWorks, Inc. All rights reserved.

Someone pls

Answers

The answer will be B. Instead
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The low-lying zones that are alternately covered by water during flood tide and exposed following ebb tide are called ___. hat amount would have been used in the year-end adjusting entry if the allowance account had a year-end unadjusted debit balance of $300? a star with a right ascension of 8hr is transiting at 5am. what time will a star with a right ascension of 6hr transit? In the North Atlantic, the peak of hurricane season occurs during _______.a) late spring to early summerb) midsummerc) late summer to early autumnd) late autumn Read the following text to answer the question below. Which of the following statements most accurately describes the form and structure of "The Cremation of Sam McGee"?A.)A narrative poem that uses simile, hyperbole, metaphor and personification to tell the tale of a man who asks his friend to do him an unusual favor.B.) A narrative poem that uses suspense and foreshadowing to tell the tale of a man who asks his friend to do him an unusual favor.C.) An essay that uses simile, hyperbole, metaphor and personification to tell the tale of a man who asks his friend to do him an unusual favor.D.) A short story that uses simile, metaphor and personification to tell the tale of a man who asks his friend to do him an unusual favor. in the context of david jonassen mindtools, spreadsheets, expert systems, systems modeling tools, and microworlds are: please help with steps!! emotional intelligence is important for and may spell the difference between effective and ineffective order-getting salespeople. multiple choice question. adaptive selling sales quotas key account management the workload method A codonA. Is part of a geneB. Is made of three bases of DNA in a rowC. Represents one amino acid in a proteinD. All of these cartel agreements confront participants with the economic incentives inherent in multiple choice question. cost-plus regulation. the coase theorem. a decision tree. the prisoner's dilemma. Which of the following was NOT a decision made at the Yalta Conference?A. Soviets did not have to allow free elections in occupied citiesB. The Soviets would join the war against JapanC. Germany would be divided into four partsD. Germans were to pay reparations for the war Which of the following sentences is written in subjunctive mood?a. Turn the lights off when you leave the room.b. If you're leaving the room, then turn the lights off.c. I wish you'd turn the lights off when you leave the room.d. Will you turn the lights off when you leave the room? how do you calculate the adjusted amount of energy that is available to organisms that are one trophic level above producers? For a particular reaction, H=111. 4 kJ/mol and S=25. 0 J/(molK). Required:a. Calculate G for this reaction at 298 K. (in KJ). b. What can be said about the spontaneity of the reaction at 298 K? 8x+4= 2y is the question. What is the slope and the y-intercept? Study status:Financial derivatives are considered among the advanced financialinstruments with multiple uses in the financial markets..What did you learn in the Markets and Financial Institutions when a patient has a primary and secondary insurance, and both are to be billed for a specific claim, this is called: Debo pedir comida a la habitacin?a.Es buena idea que pidas comida a la habitacin.b.Es buena idea que pedir comida a la habitacin.c.Es buena idea que pediremos comida a la habitacin. a registered nurse should assign a nursing assistant to care for a client with inflammatory bowel disease and a urinary catheter who: the electric motor of a model train accelerates the train from rest to 0.720m/s in 22.0milliseconds (ms). the total mass of the train is 875g. Find the average power delivered to the train during its acceleration.