how many joules would it take to raise 2 grams of AL 1 degree?
Explanation:
Air has a heat capacity of about 700 Joules per kg per °K and a density of just 1.2 kg/m3, so its initial energy would be 700 x 1 x 1.2 x 293 = 246,120 Joules
HURRY PLEASE
Why did the model car move away from the magnet?
the fields repelled
the fields repelled
the fields attracted
the fields attracted
the magnetic car was pushed forward from contact with the magnet
the magnetic car was pushed forward from contact with the magnet
none of the above
none of the above
ecosystems!!!!!!!! 3 questions PLEASE ANSWER I NEED THEM BY FRIDAY
1. What would happen if there were no abiotic factors in an ecosystem?
Plants would be unable to grow and produce oxygen for the animals.
Animals would grow and flourish.
The ecosystem would get too much rain.
2.Bacteria would become the consumer instead of the decomposer.
Which of the following correctly shows the cycle of biotic factors in an ecosystem?
A. Bacteria produce food and oxygen; animals eat the plants, breathe the oxygen, and produce carbon dioxide; and plants break down dead animals and produce minerals.
B. Plants produce food and oxygen; bacteria eat the plants, breathe the oxygen, and produce carbon dioxide; and animals break down dead plants and produce minerals that help plants grow.
C. Plants produce food and oxygen; animals eat the plants, breathe the oxygen, and produce carbon dioxide; and bacteria break down dead plants and animals and produce minerals that help plants grow.
D. Animals produce food and oxygen; bacteria eat the plants, breathe the oxygen, and produce carbon dioxide; and plants break down dead animals and produce minerals.
3. the pictures
Answer:
For your first question, the answer is "Plants would be unable to grow and produce oxygen for the animals"
Explanation:
.
Q1) Plants would be unable to grow and produce oxygen for the animals.
Q2) C
and I don't understand Q3. Sorry :(
What drives the movement of Earth's tectonic plates?
A the movement of air currents pushing on the plates
OB. the convection of magma under the plates pulling them
Cthe movement of Earth on its axis pulling on the plates
Dthe convection of ocean currents above the plates pushing them
Answer:
B or D
Explanation:
( 15 points to whoever replies quickest no links pls ) a farmer has used a fertiliser containing ammonium nitrate, potassium nitrate and ammonium sulphate on his fields but some may have leached into a nearby river. If a sample of river water was tested, what colour would the flame be if there was fertiliser contamination
If water of the river was tested there would be orange color flame.
What is fertilizer?Millions of tons of air, natural gas, and mined ores are transformed into plant nutrition products based on the three crucial nutrients nitrogen, phosphorus, and potassium by the fertilizer industry.
The process begins by combining nitrogen from the air with hydrogen from natural gas at high temperature and pressure to produce ammonia, which is then used to make nitrogen-based fertilizers, the largest product category. Natural gas is used as a raw material for about 60% of the time, while the remaining 40% is used to power the synthesis process.
The nitric acid created from the ammonia is combined with it to create nitrate fertilizers like ammonium nitrate (AN). Urea can also be made by combining ammonia with liquid carbon dioxide. To create UAN (urea ammonium nitrate) solution, both of these products can be combined with water.
Therefore, If water of the river was tested there would be orange color flame.
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Which two elements are likely to form a compound that has ionic bonds?
sulfur and hydrogen
nitrogen and oxygen
sodium and chlorine
carbon and oxygen
Explanation:
for having a ionic bond we need great delta X that we see in electropositive atom (Na) and an electronegative atom(F)
some students observe four different lab investigations. The students record their observations in a table.
Investigation
Observations
1
A beaker of water is
heated on a hot plate. Bubbles form in
the water, and steam is given off.
2
Oil is added to a beaker of water. Oil forms a layer on top
of the water
3
Sand and iron filings are mixed in a beaker. A magnet is
then used to separate the iron filings from the sand.
4
A piece of chalk is placed in a beaker of vinegar Bubbles
form as a gas is given off.
Which investigation most likely involved a chemical reaction?
Answer:
Number 4 is an example of a chemical reaction
Explanation:
heThe chalk is reacting with the vingear which is creating a new substance. The new substance is the gas that the reaction gives off.
An ecosystem is defined as
Answer:
Ecosystem is a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life. It contains biotic or living, parts, as well as abiotic factors, or nonliving parts.
An ecosystem is defined as a location where a bubble of life is created by the interaction of plants, animals, and other species with the weather, topography, and other factors.
What is topography?Topography is defined as the investigation of surface characteristics and shapes. In order to describe the shape of the terrain, topographic features are particular points, lines, and areas that correspond to local differential qualities of the surface of the terrain.
A self-sustaining unit of living creatures (plants, animals, and decomposers) and their non-living surroundings is called an ecosystem (air, water and soil). Examples: Aquatic plants and animals that dwell in pond water make up the aquatic portion of an ecosystem known as a pond. A biome is a group of associated ecosystems.
Thus, an ecosystem is defined as a location where a bubble of life is created by the interaction of plants, animals, and other species with the weather, topography, and other factors.
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A disease caused by the inflammation of mucus membranes inside the bronchial tubes. There are more than 3 million U.S. cases a year.
Inflammation can have causes that aren't due to underlying disease. Examples include injuries such as sprains and strains, overuse, or insect bites.
Describe the impact deforestation can have on species inhabiting those affected environment
Answer:
In heavily deforested areas, soil erosion and nutrient runoff are common after a rainfall. Soil erosion tends to be greater in drier, more mountainous areas, where there is less vegetation to prevent the movement of soil and to absorb the nutrients
Explanation:
Answer:
The soil that provides nutrients for vegetation in ecosystems is also affected by deforestation. ... Some of the carbon dioxide released into the atmosphere comes from dead vegetation that decomposes in the ground. In heavily deforested areas, soil erosion and nutrient runoff are common after a rainfall.
Explanation:
Hope this helped Mark BRAINLEST
Explain how you could use the solubility of a substance to make a saturated solution.
Answer:
Add solute to liquid until dissolving stops.
Evaporate a solvent from a solution until the solute begins to crystallize or precipitate.
Add seed crystals to a solution that is supersaturated.
Explanation:
1. What is the geologic time scale? Explain how the geologic time scale is a model.
2. How many millions of years was the Paleozoic?
3. During what era did the dinosaurs live?
4. During what period where the first early human relatives found?
Does an acidic solution contain hydroxide ions? Explain your answer.
Answer:
Yes but there are more hydrogen ions than hydroxide ions.
An acidic solution contains a large concentration of hydronium ions than hydroxide ions. Yes, an acidic solution contains hydroxide ions.
What are hydroxide ions?Hydroxide ions are produced from the ionization of water molecules carrying the positive charge on hydrogen.
A solution contains both the hydroxide OH⁻ and hydronium ions H⁺.
In order to make a solution acidic, a solution must contain more hydronium ions compared to hydroxide ions.
Yes, an acidic solution contains hydroxide ions.
Learn more about hydroxide ions.
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The distance time graphs for two objects are shown below: look at the picture. Which statement is true? Both objects move at variable speeds. Both objects move at a constant speed. Object A is moving at constant speed but Object B is moving at variable speed. Object A is moving at variable speed but Object B is moving at constant speed.
Can you get this done before 10:40 pls
Answer:
The last statement is correct
Explanation:
Which of the following is NOT a way of making heat?
A. turning on an electric light
B. eating a sandwich
C. rubbing sticks together
D. melting an ice cube
Answer:
b. You should prolly know this tho lol
Explanation:
In addition to carbon dioxide, what other two ingredients does a plant need for photosynthesis? ( A: water and sunlight B: Sunlight and soil C: sunlight and oxygen D: water and oxygen)
In addition to carbon dioxide, water and sunlight are the two ingredients that a plant need for photosynthesis. Therefore, the correct option is option A.
What is photosynthesis?Green plants along with certain other organisms convert sunlight into chemical energy through a process called photosynthesis. Light energy is gathered and utilised during photosynthesis by green plants to change moisture, carbon dioxide, plus minerals into oxygen- and energy-rich organic molecules.
It is impossible to overstate the role that photosynthesis plays in sustaining life on Earth. There'd soon be food or even other organic materials on Earth if photosynthesis stopped. The majority of life would vanish, and eventually, the atmosphere of Earth would contain almost no gaseous oxygen. In addition to carbon dioxide, water and sunlight are the two ingredients that a plant need for photosynthesis.
Therefore, the correct option is option A.
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Pls help due in 5 minutes
When does the Southern Hemisphere experience the shortest day (and longest night) of the year? Why?
Answer:
The hemisphere tilted most toward our home star sees its longest day, while the hemisphere tilted away from the sun sees its longest night. During the Northern Hemisphere's summer solstice—which always falls around June 21—the Southern Hemisphere gets its winter solstice.
Explanation:
What type of worm has a circulatory system?
Nematodes
Segmented worms
Roundworms
Flatworms
Your answer will be Segmented worms. Segmented worms have a closed circulatory system in which blood is enclosed in blood vessels.
If Enough Thermal energy And change of state, write each sentence.
Write (solid), (liquid), or (gas) to complete each sentence
If enough Thermal energy is added to a liquid, it will change to a
___________
Please explain in simple terms.
Spam = remove
Googling it = Remove
Answer:
If enough thermal energy is added to a liquid lets say cold it will freeze turning it into a solid. they same for a solid if enough thermal energy is added it can turn to a liquid or a gas.
Explanation: Its science.
Answer:
gas
Explanation:
I don't know, just it is gas bc the atoms gain space and move freely and yeah
Mr. Rogers wanted to study the affect of different types of music would have on students ability to complete the IA. What is his dependent variable? What Is his independent variable ?
A. classrooms
B. types of music
C. IA scores
D. students
A pea plant has the genotype Bb. What words describe this genotype?
Ill give brainliest and a 5 star review for the best answer Do you think your town or neighborhood has an ecosystem? If you don’t think so, explain why not. If you do think so, what are the producers, consumers, and decomposers in the ecosystem? What roles do humans play in this ecosystem?
Answer: I do think that neighborhoods are an ecosystem
Explanation: a ecosystem contains living and non-living things, some examples are the people,plants,and pets are living organisms and the houses and the street lamps are non living. Therefore making a neighborhood a ecosystem
what will happen? (Newton's 1st Law Egg Drop)
Answer:
dogwater
Explanation:
lalidadida
If you start with 5.5 liters of hydrogen peroxide (H2O2), how many molecules of oxygen gas (O2) will be produced?
Answer:
2.75 mol O2
Explanation:
2 H2O2 = 2 H2O + O2 is the formula
heres a picture of the work
When DNA replicates, the genes in the new strand are the orginal strand.
a. similar to
b. larger than
c. different from
d. identical to
PLEASE HELP!!!!!!!! giving brainlist
Answer:
I can only give the answer for the first page.
Explanation:
1. Thermal energy always moves from hot objects to cold objects.
2. When two states of matter reach the same temperature, it is called thermal equilibrium.
ASAP PLLEEASE HURYYYYYYYYYYRRRRRRRRRRRRYY (NO FILES FOR ME NEEDING TO DOWNLAOD PLEASE!)
1.Fill in the blank with the correct term to make the statement true.
During the (day/night)
at the beach, the land cools down
(faster/slower)
than the
(land/ocean).
Because of this, the air over the land is
(Warmer/cooler) than the air over the ocean. The
(More/less)
dense air rises over the ocean and the cooler,
(More/less)
dense air blows in from over the land creating a
(sea/land)
breeze.
2.Which statement is true about winds?
Winds always blow from low to high pressure.
Winds always blow from water to land.
Winds always blow from land to water.
3. Winds always blow from high to low pressure. How do landmasses impact the movement of air and water?
They stop all movement of both air and water.
They speed up the air and water and allow it to pass though.
They change the direction and slow them down.
They slow down the air but speed up the water.
Answer:
1.Fill in the blank with the correct term to make the statement true.
During the (night)
at the beach, the land cools down
(slower)
than the
(ocean).
Because of this, the air over the land is
(Warmer) than the air over the ocean. The
(More)
dense air rises over the ocean and the cooler,
(More)
dense air blows in from over the land creating a
(sea)
breeze.
2.Which statement is true about winds?
Winds always blow from low to high pressure.
true
Winds always blow from water to land.
false
Winds always blow from land to water.
false
3. Winds always blow from high to low pressure. How do landmasses impact the movement of air and water?
They stop all movement of both air and water.
They speed up the air and water and allow it to pass though.
They change the direction and slow them down.
think this is it
They slow down the air but speed up the water.
pt:2
answering the pictures
9- I don know sorry
15-B
16-A
Explanation:
just trying to help LET ME KNOW IF IT'S WORNG
Describe: What happens to a hydrogen atom in an acid when the acid is dissolved in water?
Answer:
When dissolved in water, acids donate hydrogen ions (H+). Hydrogen ions are hydrogen atoms that have lost an electron and now have just a proton, giving them a positive electrical charge. ... The H+ ions in the acid join with and are neutralized by the OH- ions of the base to form H2O.
Answer:
When dissolved in water, acids donate hydrogen ions (H+). Hydrogen ions are hydrogen atoms that have lost an electron and now have just a proton, giving them a positive electrical charge. ... The H+ ions in the acid join with and are neutralized by the OH- ions of the base to form H2O.
Explanation:
If a trait varies greatly within a pair of identical twins, it is most likely caused by what?
A.Genetics
B. Environment
C. Nutrition
D.inherited
True or False: Genetics and environment both are responsible for making you who you are.
A.true
B.false
Answer:
1. B. environment
2. A. true
Explanation:
If a trait varies greatly within a pair of identical twins, it is most likely influenced by the environment. Genetics and the environment both are responsible for human development.
What is Genetics?Genetics can be described as the study of genetic variation, genes, and heredity in organisms. It is a branch in biology because heredity is vital to organisms' evolution.
Trait and molecular inheritance mechanisms of genes are still primary principles of genetics and have expanded to study the function and behavior of genes.
Genetics has a number of subfields, including molecular genetics, epigenetics, and population genetics. Living organisms are studied within the broad field span the domains of life such as bacteria, archaea, and eukarya.
Genetic processes work with an organism's environment and experiences to influence behavior and development referred to as nature versus nurture. The extracellular or intracellular environment of a living organism can switch gene transcription on or off.
Therefore, the given statement is true.
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why did Mendel become decide to become a teacher?
Answer:
he decided to become a teacher because he studied expertise and wanted to teach about early life
Explanation:
Answer:
While Charles Darwin's "The Origin of Species" was published in November 1859, a monastic priest and teacher named Gregor Mendel was in his third year experimenting with pea plants. His final results demonstrated principles of heredity that would eventually evolve into the new disciplines of genetics and molecular biology. His work not only helped solve the mysteries of diseases such as cystic fibrosis, Tay-Sachs disease, sickle cell disease, and hemophilia, it also and lay the foundation for the Human Genome Project.
Explanation: