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

A cell that has 6 chromosomes in the G2 phase will have how many sister chromatids during that same phase

Answers

Answer:

12 chromatids.

Explanation:

If a cell has 6 chromosomes in the G2 phase will have 12 sister chromatids during that same phase because replication of chromosomes occurs which produces two exact copies of each chromosomes. Then 6 chromatids are distributed in one daughter cell while the other 6 chromatids are distributed in other daughter cell and finally the cell division occurs.

Are the Earth's seasons caused by the differences in the distance
from the Sun throughout the year or the tilt of the Earth's axis?

Answers

Earth's tilted axis causes the seasons. Throughout the year, different parts of Earth receive the Sun's most direct rays. So, when the North Pole tilts toward the Sun, it's summer in the Northern Hemisphere. And when the South Pole tilts toward the Sun, it's winter in the Northern Hemisphere.

AYY YOO :)))
What is the variable in an experiment that stays the same?

A. Responding Variable

B. Independent Variable

C. Dependent Variable

D. Controlled Variable

Answers

The variable in an experiment that stays the same would be the controlled variable because it is kept the same throughout the experiment.

Please actually answer the question i need the answer, i'll give brainliest!!!!

A city is located in an area that has experienced 7.5-magnitude earthquakes in the past.
The city is considering building a new skyscraper.
Use the earthquake magnitude scale to predict the amount and type of damage residents should expect from future earthquakes of similar magnitude.
Then suggest a way to minimize the effects of future earthquakes on the skyscraper.

Answers

According to the scale, residents should expect major damage and the potential for the skyscraper to collapse if a future earthquake were to occur.
Ways to minimize future earthquakes impact on the skyscraper could be using stronger materials, creating better routes to quickly escape should an earthquake occur, and overall a more supported structure that can withstand the earthquakes magnitude.

Give two ways in which saliva aids digestion. ​

Answers

Explanation:

Saliva contains special enzymes that help digest the starches in your food. An enzyme called amylase breaks down starches (complex carbohydrates) into sugars, which your body can more easily absorb. Saliva also contains an enzyme called lingual lipase, which breaks down fats.

The Himalayan rabbit's habitat has cold, snowy winters and mild summers. The body is
typically covered in white fur except for the nose, feet, tail, and ears, which are covered in
black fur
Himalayan Rabbit
A scientist shaved an area of white fur on the back of a Himalayan rabbit and placed an ice
pack over the shaved area. The shaved area grew black fur.
Which of these best explains why the hair that grew back where the ice pack was placed was
black and not white?
F The genes for black hair were activated by specific temperatures.
G The white hair mutated to black hair as the rabbit's body temperature decreased.
H The coat color changed from white to black with the age of the rabbit.
3 White hair only grows during certain times of the year.

Answers

Answer:

F. The genes for black hair were activated by specific temperatures

Explanation:

The white hair only grows in cold temperatures. Just because they put an ice pack on the rabbit does not mean that its cold.

Rabbits regulate their body temperature by using their ears. A fever or a dip in body temperature could be indicated by extremely chilly or hot ears. Thus, option F is correct.

What are the adaptation rabbits have in Himalayan?

In general, rabbits thrive in cooler climates. In the fall, rabbits stop shedding their fur and develop a thick coat of fur that keeps them warm in the winter. Low temperatures of 32 degrees don't really bother them.

Strong back legs offer rabbits the speed they need to run away from predators. Their feet have fur on the bottoms for warmth and strong claws for traction.

The white hair only grows in cold temperatures. Just because they put an ice pack on the rabbit does not mean that it's cold.

Therefore, The genes for black hair were activated by specific temperatures

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This system provides energy from food
A. Circulatory
B. Endocrine
C. Digestive
D. Lymphatic ​

Answers

Answer:

c

Explanation:

Carbohydrates, proteins, and lipids provide this energy. Chemical bonds in molecules of these nutrients contain energy. When the bonds are broken during digestion to form simpler molecules, the energy is released.

name the fluid present between arachnoid and pia mater

Answers

Answer:

Cerebrospinal fluid fills the ventricles of the brain and the space between the pia mater and the arachnoid.

Explanation:

Cerebrospinal fluid fills the ventricles of the brain and the space between the pia mater and the arachnoid. The primary function of the meninges and of the cerebrospinal fluid is to protect the central nervous system.

Did you guys know...
In Justin Bieber’s song “yummy” he says “you make my toes curl” look up the lyrics it’s hilarious

Answers

Answer:

thats make me cry of laughter bro... lm ao

Explanation:

Answer:

ya that is

Explanation:

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!

PLZ HELP IM TAKING MY EXAM!! which of the following best explains the impact of mrna being double stranded before translation

Answers

Answer:

Impact of double-stranded mRNA before translation would inhibit the binding of tRNA to mRNA ti synthesize protein.

Explanation:

The mRNA is a molecule that, with the exception of viruses with double-stranded RNA, has only one chain. It is in charge of conducting to the ribosomes the sequence of nucleotides that makes possible the translation and the synthesis of proteins.

Once the ribosome translates the information of each codon of the mRNA, a transfer RNA (tRNA) molecule, with a complementary anticodon, provides the amino acid corresponding to the translated codon.

If the mRNA were double-stranded, the translation process would be altered, since binding of the tRNA with the amino acid it carries and mRNA codon would not be possible, as well as the protein synthesis.

What is the main function of the cell membrane?
A. To pass the genetic information from one cell to another.
B. To protect the cell from Invaders.
C. To regulate what enters and leaves the cell.

Answers

Answer:

pretty sure its b

Explanation:

The answer for this is A.

plsssss helpppp asap

Answers

Answer:

cant see the pic

Explanation:

when would an offspring not exhibit an inherited mutation?

Answers

Answer:

when the paternal don't have said mutation to begin with

Explanation:

The purpose of photosynthesis is …...
helppppp

Answers

Answer:

Is for plants to receive energy without hunting for food. they are stationary organisms, therefore depend on photosynthesis for food/energy.

Answer:

Explanation:

to convert light into food

if you want me to pick a multiple choice question just comment on my answer

A. The sun heats the air at the equator, followed by hot air rising and moisture condensing
B. Air moves towards the poles as it cools
C. The dry air moves back to the equator, picking up a lot of moisture on the way
D. The air sinks around 30° latitude and is very dry.

Answers

Answer:

B. Air moves towards the poles as it cools

Explanation:

The image represent convection cell or Hadley cell is a natural phenomenon in the atmosphere that occur due to difference in the density within a body of liquid or gas. These differences in density causes rise and fall in currents.

The process in step A refers to when hot air moves up and in the step B, the hot air encounters a cold surface, it direct exchange the heat with cold surface and the air cools down and move towards the poles.

Hence, the correct answer is "B. Air moves towards the poles as it cools".

Which of the choices below provide direct evidence of evolution
A. Fossil
B. Plate tectonics
C. DNA
D. Both A and C

Answers

A and C


They both can be compared to present or past objects to show how they have changed or evolved over time
D - both fossils and DNA can be used to show direct evidence of evolution

During a "fight or flight" response in mammals, the adrenal gland releases a hormone called epinephrine that stimulates liver cells to release glucose for emergency fuel. Describe and explain the signal transduction pathway that follows the release of epinephrine.

Answers

Answer:That is, a signal is released by the sending cell in order to make the receiving ... In some cases, we can describe a cellular response at both the molecular ... Many signaling pathways cause a cellular response that involves a change in ... Adrenaline, also known as epinephrine, is a hormone (produced by the adrenal gland) ...

Explanation:

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..... ^_^

During the nitrogen cycle, through which structure are nitrogen compounds first absorb into the plant?

A.) roots
B.)leaves
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Answers

Answer:

It's B

Explanation:

I took the test

Answer: B (Leaves)

Explanation:

Did it engenuity unit test

Whats TWO Answer Giving Brainliest To first Correct AnSwEr:D......... HELP HELP

Answers

Answer:

C

Explanation:

the answer is
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shajsjsjsjsndk

Due to the intense heat and pressure on the inner core, scientists believe it is a:
A. Solid
B. Liquid
C. Semi - Fluid
D. Gas

Answers

Answer:

c. semi-fluid

Explanation:

im dumb

Why are plants in the alpine biome typically low growing?
A) They have access to nutrient-rich soil.
B) They have limited access to sunlight.
C) They have too much access to water.
D) They have limited access to nutrients.
E) They get trampled on by the alpine animals.
PLS HELP ASAP!!!

Answers

Answer:

hi

lm'iranian

11years old

D

The cell membrane controls movement of materials into and out of the cell. The following particles are moving from high concentration to low concentration and are using a carrier protein. How would you describe this type of movement across the membrane?
A. simple osmosis

B. active transport

C. simple diffusion

D. facilitated diffusion and please give a reason why you chose this answer

Answers

Answer:

B. active transport

Explanation:

Answer:

b

Explanation:

because active transport obey the concentration gradient..

Why do only house geckos and Pacific gulls have two temporal holes in their skills?

Answers

Answer:

They listen to sound and feel vibrations through those two temporal holes to grasp their surroundings and survive.

Explanation:

Hope this helped!

which best describe this scenario

Answers

Explanation:

what is the scenario?

Answer:

Multiple different things. You could be doing a psychology experiment. The possibilities are endless. In this scenario I'm trying to think of what you could be thinking about and what scenario you want to be explained.

please help please giving brainlest

Answers

Answer:

hmm it think it is option one as the answer

Explanation:

because i typed it in and i found the answer

This is the origin of new combinations of traits in offspring(fourth option). This process is called crossing-over or intrachromosomial recombination. This is the reason why parents and offspring don't look alike

In about 100 words, explain how the use of flashback adds meaning to “Rules of the Game.” Be sure to use details from the story to support your answer.

Answers

Answer:

“Every time people come out from foreign country, must know rules. Throughout the story, Waverly describes past incidents when cultural differences caused her and her mother to view events differently. Waverly sees events differently because of her American upbringing. Her mother sees events differently because of her Chinese upbringing. She shows this struggle when she describes her mother’s reaction to the game manual for her brother’s new chess set: “This American rules,” she concluded at last.The The use of flashback in "Rules of the Game" provides insight into the complicated relationship between Waverly and her mother. You not know, judge say, Too bad, go back. Better you take it, find out why yourself.” She tossed her head back with a satisfied smile. Waverly notes that her mother has had difficulty adjusting to American culture. They say, Don’t know why, you find out yourself. They not telling you why so you can use their way go forward. But they knowing all the time.

Explanation:

Paraphrased sample answer- you're welcome

What is the location of carbohydrates in the cell?

Answers

Answer:

I think its cell membranes

Please correct me if I am wrong thank you

Explanation:

PLEASE ANSWER QUICK
The figure presents a diagram of adding d T M P to a growing strand of D N A. A D N A template that consists of nine nucleotides is shown. Five nucleotides have already been added to the complementary strand that is growing from left to right along the template. The left end of the growing strand is labeled 5 prime, and the right end is labeled 3 prime. The left end of the template strand is labeled 3 prime, and the right end is labeled 5 prime. An incoming d T T P has three phosphate groups. Arrows indicate that the two outermost phosphate groups split off as the d T M P with the remaining phosphate group is about to join to the 3 prime end of the growing strand.
Figure 1. Model showing details of adding a deoxythymidine monophosphate (dTMP) nucleotide to a growing strand of DNA

The features of this model provide evidence for which explanation of why all growing strands are synthesized in a 5′ to 3′ direction?


A. The two strands need to be antiparallel to bond properly.


B. Thymine and adenine would not bond properly if the strand grew from 3′ to 5′.



C. The translation of mRNA occurs in the 5′ to 3′ direction; therefore, the growing DNA strand must also grow in the 5′ to 3′ direction.


D. The phosphate group, attached to the 5′ carbon of the dTMP, forms a covalent bond with the oxygen atom attached to the 3′ carbon of the growing strand.

Answers

Answer:

D - The phosphate group, attached to the 5′ carbon of the dTMP, forms a covalent bond with the oxygen atom attached to the 3′ carbon of the growing strand.

Explanation:

I got it checked and it was right

The feature of the model provides evidence in a 5′ to 3′ direction is the phosphate group, attached to the 5′ carbon of the dTMP, forms a covalent bond with the oxygen atom attached to the 3′ carbon of the growing strand. The correct option is D.

What are DNA bases?

The sequence of DNA bases is referred to as the DNA sequence. RNA and DNA are both genetic elements composed of nucleic acids composed of deoxyribose acid, while RNA is composed of ribonucleic acid.

Both DNA and RNA have four bases that are linked together by a hydrogen bond. RNA has uracil in place of thymine, but DNA has timing and all other bases are the same.

Therefore, the correct option is D. The phosphate group, connected to the dTMP's 5′ carbon, creates a covalent bond with the oxygen atom associated with the developing strand's 3′ carbon.

To learn more about DNA bases, refer to the link:

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