a student needs to find the density of a cube. each side of the cube measures 3 cm and the mass of the cube is 12g. what is the approximate density of the cube?
A. 0.4g/cm3
B. 2.25g/cm3
C. 4.0g/cm3
D. 36g/cm3

Answers

Answer 1

Answer:

Density = 0.4g/cm³

Explanation:

Given

Mass = 12 g

Length = 3 cm

Required

Determine the density.

To calculate density, we need volume.

Volume of a cube is:

Volume = Length ³

Hence:

Volume = (3cm)³

Volume = 27cm³

Density = Mass/Volume

Density = 12/27

Density = 0.4g/cm³ --- Approximated


Related Questions

Why is blood a slightly higher temperature than typical body temperature?
O As bacteria and viruses are destroyed by leukocytes, they release bursts of heat
The bright red pigment of blood warms the internal proteins
O Blood pressure causes formed elements to bump into sides of blood vessels, resulting in friction and resistance
The excess mitochondria in red blood cells produce extra ATP

Answers

As the bacteria and viruses are destroyed by leukocytes, they release bursts of heat.

help!
answer the following questions regarding the organism that the product is derived from (reasonable guesses or
speculation is ok):
1. What is the organism?
2. Where does the organism live?
3. Briefly characterize the ecosystem that the organism lives in.
4. Provide one example of how the organism depends on another organism.
5. What are some threats to the organism in the ecosystem?
Speculate on how your life would be affected if the organism became extinct.

Answers

Answer:

1. An organism is a individual animal, plant, or single-celled life form.

2. Habitat, place where an organism or a community of organisms lives, including all living and nonliving factors or conditions of the surrounding environment. Like a forest, lake, coral reef, desert, towns or cities.

3. An 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. Ecosystems contain biotic or living, parts, as well as abiotic factors, or nonliving parts. Biotic factors are animals, trees, plants, and abiotic factors are things that have never been alive. So rock rivers, ponds, man made objects.

4. When a organism depends on another is called symbiotic relationships. There are three different types of symbiotic relationships: mutualism, commensalism, and parasitism. Mutualism: both partners benefit. An example of mutualism involves goby fish and shrimp. The shrimp maintains a burrow in the sand in which both the fish and shrimp live. When a predator comes near, the fish touches the shrimp with its tail as a warning. Then, both fish and shrimp retreat to the burrow until the predator is gone.

5. Pollution(water&air), deforestation, UV Radiation, invasive species.

If an organism went extinct the next generation won't ever be able to see those organisms. If an organism we eat went extinct we would have one less food source which is something that really does not need to happen in today world.

Explanation:

Answer: (Answers may vary.)

I chose the product cotton pants. The responses are:

Cotton plant

Southeastern North America

The plant lives in soil in an agricultural field.

The cotton plant requires bees for pollination.

The plant may be threatened by diseases such as cotton leaf curl disease, pests such as aphids, and drought.

If cotton became extinct, my pants would have to be made of some other material, such as linen or wool, which would feel quite different. This would be a big adjustment for me because I am used to wearing cotton pants almost every day.

Explanation: edmentum/plato

What does a flow chart look like?

Answers

Answer:

a flow chart is a graphical or symbolic representation of a process. each step in the process is represented by a different symbol and contains a short description of the process step. the flowchart symbols are linked together with Arrow showing the process flow directions.

If we were measuring the mass of Professor Tesfay, the most appropriate unit to use would be

Answers

Answer:

kilograms

Explanation:

That's how people weigh others in the other countries

How are meiosis and mitosis different?

Answers

Answer:C

Explanation:Cells divide and reproduce in two ways, mitosis and meiosis. Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells.

Photosynthesis produces chemical energy and Cellular Respiration uses chemical energy. What type of chemical energy do they both use?


A. protein

B. sunlight

C. food

D. glucose

Answers

Answer:

Photosynthesis uses energy from the sun in terms of sunlight and cellular respiration uses ATP energy.

Photosynthesis uses energy from the sun and cellular respiration uses glucose to get  ATP energy. Thus option B and D are correct.

what are the factors affecting photosynthesis ?

The process in which autotrophic plants use light energy from sun and convert it into chemical energy, and prepare their food in the form of glucose called as photosynthesis.

This chemical energy is created from water and carbon dioxide and stored as a sugar molecule, it occur in chloroplasts which has three pigments such as chlorophyll a, chlorophyll b, carotene and xanthophyll.

various factors influence photosynthesis like increase in light intensity causes higher rate of photosynthesis, Higher concentration of carbon dioxide increases the rate of photosynthesis, Temperature range between 25° to 35° C optimum for photosynthesis,

Thus option B and D are correct.

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Why do apples, potatoes, and onions all taste the same when you eat them with your nose plugged?

Answers

Answer:

You won't get to smell so your brain won't know the difference is my guess

Answer:

Apples, potatoes and onions will all taste the same if somehow you were to block your sense of smell (plug your nose).

Explanation:

What is an active site?
A )a gland that secretes a particular enzyme
B) a part of an enzyme molecule into which a substrate molecules fits
C)a part of the substrate to which an enzyme molecule attaches
D)a place in the body where an enzyme works

Answers

Answer:

B is correct.

Explanation:

What would be the role of the genetic material found in the organelles?

Answers

Please give me the brainiest. It would make my day!

Answer:

Among the more important cell organelles are the nuclei, which store genetic information; mitochondria, which produce chemical energy; and ribosomes, which assemble proteins.

HELP??????????????
????

Answers

THE ANSWER IS C (sorry for caps)

please answer this for me

Answers

Answer:

B

Explanation:

In your opinion, should viruses be classified as living or nonliving? Be sure to use evidence from the chart in your answer.

Answers

Answer:

hope it helped. if yes pls follow

Explanation:

living things use energy. But virus does not use energy. So my opinion is virus is non-living.

Answer: ............

Explanation:

can nonliving things share some characteristic with living things explain your answer

Answers

Answer:

yes they can like nutrition vehicles are none living yet they need fuel to move while we need food vehicles excrete or emmit smoke while we excrete waste products

What happens to glucose which enters nephron along with filtrate

Answers

Answer:

it goes down the renal tubule by the action of cilia. The tubular cells absorb glucose, amino acids, salts, etc. These are then passed into the capillary blood cells using the process of diffusion.

When glucose enters nephron along with filtrate, it goes down the renal tubule by the action of cilia. The tubular cells absorb glucose, amino acids, salts, etc. These are then passed into the capillary blood cells using the process of diffusion. Selective reabsorption is the process whereby certain molecules (e.g. ions, glucose and amino acids), after being filtered out of the capillaries along with nitrogenous waste products (i.e. urea) and water in the glomerulus, are reabsorbed from the filtrate as they pass through the nephron. Glucose that enters the nephron along with the filtrate after passing through the glomerulus, passes from the tubule of nephron where it is selectively reabsorbed and sent back to blood.
The filtered part of blood that is collected into the Bowman's space is called glomerular filtrate . ... Once the filtrate passes through the proximal convoluted tubule , the primary site of absorption, 100% of the glucose is reabsorbed back into the blood, including other nutrients and molecules. Nephric filtrate goes to Bowman's capsule when glucose comes out from it. The filtrate then passes through the tube where the blood capillaries absorb glucose. The capillaries of the blood carry glucose to all the cells of the body. Reabsorption. Reabsorption takes place mainly in the proximal convoluted tubule of the nephron . Nearly all of the water, glucose, potassium, and amino acids lost during glomerular filtration reenter the blood from the renal tubules. Following a meal, glucose utilization by the kidney increases. Normally each day, ∼180 g of glucose is filtered by the kidneys; almost all of this is reabsorbed by means of sodium–glucose co-transporter 2 (SGLT2), expressed in the proximal tubules.

What is an example of dissociation?

A. vegetable oil dissolving in water
B. table salt dissolving in water
C. hydrogen chloride dissolving in water
D. table sugar dissolving in water

Answers

Answer:

I'll say B cause the Nacl ion breaks down and get surrounded by hydrogen and hydroxyl ion

Table salt dissolving in water is the example of dissociation.

What do you mean by dissociation?

Dissociation is the process by which chemical molecules (or ionic compounds such as salts, or complexes) break down into simpler constituents such as atoms, ions or radicals, usually in a reversible manner.

Moreover, the dissociation of water is an equilibrium reaction in which one water molecule donates its proton to another water molecule.

Salts that are soluble in water dissociate into their ions and are electrolytes. Salts that are insoluble or only slightly soluble in water form very few ions in solution and are nonelectrolytes or weak electrolytes.

Learn more about dissociation:

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In 1787, a group of representatives from the states wrote the United States Constitution. What is the Constitution?

Answers

Answer:

I believe that the answer is D)

Explanation:

The others are incorrect.

whats the difference between acid , bases and buffers?​

Answers

Please select me as brainiest. It would make my day.

Answer:

A basic solution will have a pH above 7.0, while an acidic solution will have a pH below 7.0. Buffers are solutions that contain a weak acid and its a conjugate base; as such, they can absorb excess H+ions or OH– ions, thereby maintaining an overall steady pH in the solution.

How much work is required to push a 300 N box 10 m across the floor?

Answers

Answer:

3000J

Explanation:

W = F x D

W = 300N x 10m

W = 3000J

Which model represents the intermediate step between glycolysis and the citric acid cycle?

Model

Answers

Answer:

Model A

Explanation:

Answer:

A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A.

Explanation:

Which unit of measurement best matches the size of microorganisms

Answers

Answer:

bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb

Explanation:bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb

How does the polarity property make hydrogen bonds between water molecules possible?

Answers

Answer:

The two hydrogen atoms and one oxygen atom within water molecules (H2O) form polar covalent bonds. ... As a result of water's polarity, each water molecule attracts other water molecules because of the opposite charges between them, forming hydrogen bonds.

Explanation:

Name all four of the macromolecules. Identify the monomer (building block) for each macromolecule.

Answers

Answer:

Lipids - polymers called diglycerides, triglycerides; monomers are glycerol and fatty acids

Proteins - polymers are known as polypeptides; monomers are amino acids

Nucleic Acids - polymers are DNA and RNA; monomers are nucleotides, which are in turn consist of a nitrogenous base, pentose sugar, and phosphate group

Carbohydrates - polymers are polysaccharides and disaccharides*; monomers are monosaccharides (simple sugars)

PLZ BRAINLIEST

Why might is be useful for climatologists to group areas with similar cimate zones? (Written response question)

Answers

This might be useful cause it’s useful and it’s also useful and I hope this is useful you’re welcome for being useful :)

Your assignment in biology lab is to design an experiment that would detect whether a substance is breaking down, or digesting, a protein. Which of the following experimental designs would be your best choice?

Answers

Answer:

b. Test tube A: Water and soy protein

    Test tube B: Water, egg white, and pepsin

    Test tube C: Water, egg white, acid, and pepsin

    Procedure: Observe each test tube for changes in the protein every 15                           minutes.

Explanation:

what is a food chain ​

Answers

Answer:

Explanation:

a hierarchical series of organisms each dependent on the next as a source of food.The series of processes by which food is grown or produced, sold, and eventually consumed.

Answer: A food chain explains which organism eats another organism in the environment. The food chain is a linear sequence of organisms where nutrients and energy is transferred from one organism to the other.

Explanation: ( hope I helped )

Which of the following is a challenge when implementing green roofs? a)green roofs need to be watered by hand constantly b)green roofs do not last long c) green roofs can be expensive to install d) green roofs temporarily increase air pollutants
*THIS IS FOR EARTH SCIENCE*

Answers

Answer:

C.) green roofs can be expensive to install

Explanation:

Answer:

BBBB

Explanation:

Proteins are found in all cell types and tissues. Contrasted to proteins found in skeletal tissue, what is the main function of proteins found in antibodies?


A. to provide storage for elements
B. to allow muscle movement
C. to provide storage for energy
D. to protect against disease​

Answers

Answer:

d

Explanation:

1. In passive transport, what direction do molecules move?

2. In active transport, what direction do molecules move?

Answers

Answer:

In passive transport, substances simply move from an area of higher concentration to an area of lower concentration, which does not require the input of energy. Concentration gradient, size of the particles that are diffusing, and temperature of the system affect the rate of diffusion.

In active transport, the particles move across a cell membrane from a lower concentration to a higher concentration. Active transport is the energy-requiring process of pumping molecules and ions across membranes "uphill" against a gradient.

Explanation:

Passive transport moves molecules from high to low concentration without energy. Energy-driven active transport moves molecules from low to high concentrations.

What is active and passive transport?

The transfer of molecules from higher concentrations to lower concentrations is an example of passive transport, which does not require any amount of energy.

The movement of molecules from a lower concentration to a higher concentration is referred to as active transport. Active transport requires the application of energy.

Types Of Passive Transport

Simple DiffusionDiffusion with Facilitation.Filtration.Osmosis.

Active transport mechanisms include 

AntiportSymport Pumps.Endocytosis.Exocytosis.

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What is light dependent stage?

Answers

Answer:

In photosynthesis, the light-dependent reactions take place on the thylakoid membranes. The inside of the thylakoid membrane is called the lumen, and outside the thylakoid membrane is the stroma, where the light-independent reactions take place.

What is an allele? / plz anser this i will rate YOU

Answers

Answer:

The third answer choice

Different forms of the same gene.

Explanation:

An allele is an alternative form of a gene (one member of a pair) that is located at a specific position on a specific chromosome. These DNA codings determine distinct traits that can be passed on from parents to offspring.

Answer:

An allele is a one of many different forms of a gene that arise by mutation and are found at the same place on a chromosome.

Explanation:

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