A balloon is filled with helium in an airplane, where the air pressure is 81 kPa. The filled balloon has volume of 4.2 L. When the plane lands, the cabin is depressurized to the outside air pressure, which is 94 kPa. If the temperature of the balloon remains the same, what is the new volume of the balloon?

Answers

Answer 1

Answer:

3.62L

Explanation:

Using Boyle's law equation i.e

P1V1 = P2V2

Where;

P1 = initial pressure

V1 = initial volume

P2 = final pressure

V2 = final volume

According to information provided in this question, P1 = 81kPa, P2 = 94kPa, V1 = 4.2L, V2 = ?

P1V1 = P2V2

81 × 4.2 = 94 × V2

340.2 = 94V2

V2 = 340.2/94

V2 = 3.619

V2 = 3.62L


Related Questions

Help!! Pls ASAP!! Offspring from asexual reproduction are__________,
but offspring from
Sexual reproduction are _____________.

Answers

Explanation:

1.

genetically identical to each other and to the parent

2.

Sexual reproduction involves two parents and produces offspring that are genetically unique.

Hopw this helps..... ^_^

need help please help​

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Answer:

well i would help if i could see the question

Explanation:

Animals eat and digest food to obtain the energy available for life activities. Identify the organelle where energy from nutrients is released.

HELP ASAP

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Answer:

Metabolism is the chemical reactions that take place inside a living organism. The reaction occurs in the cells.  Digestion can be the best association to metabolism. The metabolic system recognizes which substances can be nutritious or poisonous. In order to complete this process, water is needed.  The chemicals are dissolved in water and transported. Without water, no reaction can take place.

Metabolism is considered as the set of life-sustaining chemical reactions within the living organism’s body cells.

Why is the line graph a curve instead of a straight line?

Answers

Answer:If it's important to display the exact values, then the straight lines do a much better job. But often you'll find that what matters is the trend and the precise measurements are secondary. ... A straight line suggests that the value between the two measurements increased linearly, while a curved line suggests otherwise.

Explanation- you better read all of that!

Pretend your an 8th grader that didn’t look up answers.

PREDICT- What would be ONE result of a loss of groundwater? Justify your answer.

Answers

one result of a loss of ground water would be that the freshwater on earth is 98 percent stored in the ground, therefore we would lose 98 percent of the very little amounts of freshwater we have

The digestion of ___ takes place in the stomach by the actions of enzymes operating at low pH. This digestion continues in the small intestine and the large molecules are broken down into ___.

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Answer:

food          minerals

Scientists insert a gene from a firefly into the genome of certain bacterial species. When these bacteria are placed into tobacco plants and exposed to certain conditions, the plants will glow. Tobacco plants without the bacteria do not glow. Which conclusion is best supported by this experiment?
A. The firefly and bacteria share a common genetic code.
B. The bacteria transferred light-producing proteins to the plant.
C. The firefly and tobacco plant have a recent common ancestor.
D. Tobacco plants lack the ability to translate the genetic code of firefly gene.

Answers

The answer is A.

A GENE is being inserted into the tobacco plant, which permits it to glow.

The conclusion that should be best supported by this experiment is option A.

Supported by the experiment?

At the time when the bacteria should be placed into the tobacco plants so here tobacco should be without the bacteria and this can't be glow. Also, the gene should be added into the tobacco plant moreover, the firefly and bacteria shared the common genetic code

Learn more about bacteria here: https://brainly.com/question/19520869

13. Which statement correctly compares a function of lipids to a function of proteins in the body?
A. Fats insulate the body, and proteins control contraction.
B. Fats cushion the organs, and proteins insulate the body.
C. Fats coordinate body activities, and proteins provide sugars.
D. Fats store energy, and proteins provide the primary fuel for cell respiration.​

Answers

The correct answer is A.

Fats thermally insulate the body, while proteins like actin and myosin form myofibrils which are the anatomical support for contraction.

Lipids and proteins are the macromolecules present inside living cells. Lipids are made of fats that insulate and proteins are involved in contraction. Thus, option A is correct.

What are the functions of lipids and proteins?

Lipids have been the polymers that make the larger molecules and have been constituted of glycerol and fatty acids (triglycerides). These are stored in the fatty tissues called adipose tissues and provide insulation to the body.

On the other hand, proteins are macromolecules constituted of amino acid sequences (polypeptide). These are involved in the muscle contraction that allows the movement and motion of the muscular and skeletal systems.

Therefore, option A. the fats and proteins are involved in insulation and contraction.

Learn more about lipids and proteins, here:

https://brainly.com/question/17665608

#SPJ2

if you have 6 pairs of homologous chromosomes. how many autosomes do you have?

Answers

Answer: A couple of homologous chromosomes, or homologs, are a set of one maternal and one paternal chromosome that pair up with each other inside a cell during fertilization. Homologs have the same genes in the same loci ...

Explanation:

please answer and give explanation too!

I will mark brainliest and 25 points!!​

Answers

Explanation:

Conditions needed for germinations are water and oxygen.

Seeds B and C has no water whereas Seed D have no oxygen.

Only Seed A has water and oxygen.

Hence the answer is A.

Question 5 (1 point) Which letter represents the trough of the wave? B
A
C
E
D
WILL GIVE BRAINLY​

Answers

Answer:

D

because trough is the lowest or the minimum point and here D represents it.

:))

The point (D) represents the trough of the wave.

What do you mean by wave?

In physics, mathematics, and related fields, a wave is a propagating dynamic disturbance of one or more quantities. Waves can be periodic, in which case those quantities oscillate repeatedly about an equilibrium value at some frequency.

Moreover, a wave is a disturbance that moves energy from one place to another. Only energy — not matter — is transferred as a wave moves. The substance that a wave moves through is called the medium.

Hence, the highest surface part of a wave is called the crest, and the lowest part is the trough. The vertical distance between the crest and the trough is the wave height. The horizontal distance between two adjacent crests or troughs is known as the wavelength.

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The Appalachian Mountains were formed about 500-400 million years ago. What has caused them to change so much over time

Answers

Answer:

There are many factors that go into the changes made to the Appalachian Mts.; you've got wind erosion, water erosion from rain/snow melting, and tectonic plate movements that can either cause the mountains to grow or to shrink.

During winter's freezing temperatures, some plants can remove water from their cells to reduce the amount of water that will freeze inside them. Why would plants need to do this

Answers

Answer:

The expansion of excess water as it turns to ice inside the cells would break the cells apart

Explanation:

We know that water expands anomalously. It expands between 4- 0°C.

Hence water expands upon freezing. Ice has more volume than liquid water and takes up more space in plant cells.

The expansion of excess water as it turns to ice inside the cells would break the cells apart

Which landform was created over millions of years by lava erupting from a hot spot under the ocean floor?

A. the Rocky Mountains
B. Mount Everest
C. the Grand Canyon
D. the Hawaiian Islands

Answers

The Hawaiian islands would be correct
The answer is D Hawaiian islands

[Select ALL That Apply]

A.Diagram B has a Greater concentration of solute on in the inside of the cell..

B. Diagram A is isotonic..

C. If more Solute was Added to the solution of Diagram C, The Water would flow into the Cell..

D.The Solution in Diagram B was Diluted to the Same Concentration as the inside of the Cell, The Solution would be isotonic..

E. If the Concentration of Solute in the cell of Diagram A increase, the Solution would Become Hypotonic..

Answers

Answer:

c is the correct answer of these questions

what is the representative organism for sponges??

Worth 20 points!!!

Answers

Answer:

phylum Porifera

Explanation:

Sponges constitute the phylum Porifera, and have been defined as sessile metazoans (multicelled immobile animals) that have water intake and outlet openings connected by chambers lined with choanocytes, cells with whip-like flagella.

ill give you a brainliest if it is right

Answers

Answer:

$7

Explanation:

the first one: 5+2+10=17

second one: 4+7+12=23

23+17=40

Answer:

brainiest is my answer lol

Explanation:

If Earth was like a hard-boiled egg, which part of Earth would the egg shell represent and why?
A. Crust, as its depth is up to 3,000 kilometers
B. Mantle, as its depth is up to 3,000 kilometers
C. Mantle, as its depth is less than 100 kilometers
D. Crust, as its depth is less than 100 kilometers

Answers

Your answer will be A. Crust, as it’s depth is up to 3,000 kilometers

Neurons transmit signals to the central nervous system. The brain processes this information to initiate a response. Two neurons communicate with each other through the
. The
is released at the site to initiate action potential and carry the signal through the body.

Answers

Answer: there is no question to what your asking?

Explanation: there is nothing here that is being questioned

photosynthesis is composed of two main parts (light-dependent and light independent)these reaction occur in different structures of the chloroplast.what is the term that best describes light independent reaction and where does it occur
a) calvin cycle, stroma
b)photosystem 1, stroma
c) photosystem 2, thylakoid membranes
d) photosystem 1 and photosystem 2, thylakoid membranes

Answers

Answer:

the answer is A Calvin cycle stroma

A standardized taxonomic system is valuable because it helps biologists agree on methods to

A
separate organisms

B
consume organisms

C.
interbreed organisms

D.
preserve organisms answer ASAP plz ;-;

Answers

Answer:

A. separate organisms

Explanation:

Sana makatulong

WILL GIVE BRAINLIEST!!!!!
_?_ are found in all metabolically active cells and are involved primarily in transporting materials within, into, and out of cells.

Vesicles

Ribosomes

Lysosomes

Vacuoles

Answers

Answer:

Vesicles

Explanation:

The features that distinguish a pond from a lake are
A) smaller size and no temperature gradient
B) smaller size and a temperature gradient
C) larger size and no temperature gradient
D) larger size and a temperature gradient
PLS HELP ASAP!

Answers

Answer:

a) smaller size and no temperature gradient

Explanation:

what is biotechnology ​

Answers

Answer:

Biotechnology is a broad area of biology, involving the use of living systems and organisms to develop or make products. Depending on the tools and applications, it often overlaps with related scientific fields

PLEASE HELP ASAP WILL DO 20 POINTS NOW AND WILL ADD MORE 50 LATER IF THE ANSWER IF WHAT IM LOOKING FOR
EXPERIMENT: TISSUE STRUCTURE

OBJECTIVES
Observe different types of cells.





Use the microscope. These supplies and equipment are needed:

prepared slide of muscle tissue
prepared slide of some internal organ such as the kidney, liver, or heart
prepared slide of erythrocytes, or leukocytes (from blood)
Follow these directions and complete the activities.
1. Place one of the prepared slides of animal tissue on the stage of the microscope.
2. Focus the microscope on low power. Then change to the high power objective. Focus on the tissue, and note the cells.
3. On a separate sheet of paper, draw an individual cell that you see in the tissue. Note the shape of the cell and its other distinctive characteristics.

What do you think the function of this cell might be?
4. Repeat Steps 1 and 2 using the other prepared slides.
5. On a separate sheet of paper, draw individual cells from the other prepared slides examined.
What do you think the functions of the other cells drawn might be?
If all of the different kinds of cells which you observed had been taken from the same organism or individual, would they have all had the same genetic information?
Consider specialization: What biological concept or occurrence is demonstrated by the different kinds of cells which were observed?
Why is it important?

Answers

Answer:

Its the flagem

Explanation:

Answer: 434 words total. Left two questions blank (they are underlined) so youll probs need to fill it in. I also suggest putting it into your own words so if they run it through a plagerism checker this doesnt pop up. I hope this helps tho.

Introduction:

Cells are the basic building blocks of all living things. The human body is composed of trillions of cells. They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions. Cells also contain the body’s hereditary material and can make copies of themselves. Cells have many parts, each with a different function. Some of these parts, called organelles, are specialized structures that perform certain tasks within the cell.  

Materials:

• Microscope  

• Prepared slide of muscle tissue  

• Prepared slide of some internal organ such as the kidney, liver, or heart

• Prepared slide of erythrocytes, or leukocytes (from blood)

Instructions:

1. Place one of the prepared slides of animal tissue on the stage of the microscope.

2. Focus the microscope on low power. Then change to the high-power objective. Focus on the tissue, and note the cells.

3. On a separate sheet of paper, draw an individual cell that you see in the tissue. Note the shape of the cell and its other distinctive characteristics.

-What do you think the function of this cell might be?

4. Repeat Steps 1 and 2 using the other prepared slides.

5. On a separate sheet of paper, draw individual cells from the other prepared slides examined.

Questions:  

What do you think the functions of the other cells drawn might be?

- (i think this differs on person to person so may need to do it yourself)

If all of the different kinds of cells which you observed had been taken from the same organism or individual, would they have all had the same genetic information?

- Yes, the cells will have the same genetic information. However, the particular combination of genes that are turned on (expressed) or turned off (repressed) dictates cellular morphology (shape) and function. Essentially meaning that though the cells share the same genetic information they do not necessarily share the same functions.  

Consider specialization:  What biological concept or occurrence is demonstrated by the different kinds of cells which were observed?

- Though these cells have the same DNA, they all have different phenotypes. The phenotypes are different because the cells appear different under the microscope. The cells do this by expressing different genes at different rates. For example, the blood cell is expressing the gene to make hemoglobulin while the other cells are probably expressing different genes that allow them to be specialized. Cells differentiate which means that they are becoming more specialized. Epigenetics focuses on how cells become more specialized.  

Why is it important?

- This is important because it allows different parts of the body to carry out their crucial functions necessary for the whole body to run properly.  

explain why plants do not burst when immersed in distilled water

Answers

Answer:

it becames turgid

Explanation:

Plant cells have plasma membrane and rigid cellulose cell wall. When the cell is placed or immersed in distilled water, the water is absorbed by osmosis. As the cell becomes turgid, the cell wall creates an inward force i.e wall pressure that prevents the cell from bursting.

                                                       Answer

According to EasyEliMu,

Plant cells have cells membrane and cell wall. When the cell is placed or immersed in distilled water, the water is absorbed by osmosis. ( This is the reason why plants do not burst!!! ) As cell becomes turgid, the cell created an inward force, wall pressure that prevents the cell from bursting. Isotonic solution- a solution which has the same concentration as the cell sap.

Hope this helps! <3

What are the reactants in cellular respiration?

Answers

Answer:

Oxygen and glucose are both reactants in the process of cellular respiration. The main product of cellular respiration is ATP; waste products include carbon dioxide and water.

Explanation:

Brainliest please? Would really help!

yh what that person said

The body consumes carbohydrates to produce energy that is used for cellular processes. Into what molecule is this energy converted for use in the cell?

A- AMP

B- ATP

C- DNA

D- RNA

Ok i have no idea and am kind of doing nine weeks test but i need some help (;

Answers

Answer:

dna

Explanation:

I believe its ATP. Hope you do well on your test.

How is it possible that the reactants and products for both chemical equations have the same quantity of carbon, hydrogen, and oxygen atoms, yet the reactants and products are different molecules?

Answers

Answer:

Yes, this may be a little confusing when taking a first glance at the chemical equation.

Explanation:

You see, the whole process of balancing an equation is to make sure the reactants and products have the same amount of mass/atoms.

With that being said, the products to appear to be different after going through the chemical change. this is because of what was happening through that process. But, all of these atoms are still within the final product.

For example, if you take water in a container, one with a lid and one without a lid, then you heat up both containers of water, the container that has the lid open will seem like the water is gone, that the atoms are not the same. Actually, if we take a look at the closed container, all of that gas that was formed from the water still has the same amount of atoms contained in it. As for the open lid container, the atoms are all there, but some of them was just released into the air outside of the jar, making it seem like there is less.

#teamtrees #WAP (Water And Plant)

The study of chemicals is called chemistry.

It is possible to have different chemical properties but the same number of elements present in the reactant and the product.

According to the law of mass of conservation of the mass. it states that the number of elements present in the reactant and the product will always remain the same.

Hence, according to this law, the mass and the quantity of the element are the same but the bonds and the arrangement of the elements are different which causes different chemical behavior.

Hence, it is possible.

For more information, refer to the link:-

https://brainly.com/question/25305623

Help please this is difficult‍♂️

Answers

Answer:

Gametes from both dogs are needed to maintain the correct number of chromosome in the offspring

Explanation:

Reproduction in dogs is a sexual process. During the process, haploid gametes from both the male and the female (sperm from males and eggs from females) fuse together in a process known as fertilization in order to produce diploid offspring.

The haploid gametes ensure that the offspring produced during fertilization has the correct (diploid) number of offspring. Because the production of gametes involves meiosis and crossing over of genetic materials between chromosomes, offspring produced by sexual reproduction are usually genetically different from one another. The random fusion of gametes further ensures that offspring from the same parents are different from one another.

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