How can sound waves be used to put out fire

Answers

Answer 1
The acoustic extinguisher works by using sound waves—a type of pressure wave—to push oxygen away from the source of a flame and spread it over a larger surface area. These actions break the fire combustion triangle made up of heat, fuel, and oxygen, the three elements required for a fire to burn.

Related Questions

La clorurarea catalitică a toluenului, se obţine un amestec format din 2-clorotoluen, 4-clorotoluen şi benzennereacționat în raport molar de 3 : 2 : 1. Calculaţi cantitatea de 2-clorotoluen, exprimată în moli, care se obținedin 110,4 g de toluen, în în prezența catalizatorului FeCl3.

Answers

Answer:

i dont lnow you heat alcohol over an open flame

How many atoms does methane=CH4?

Answers

Answer:

It has 1 carbon atom and 4 hydrogen atoms

Explanation:

hope this helps :)

What is the molarity of a 100 mL solution that contains 2.00 g KCL

Answers

Answer:

The molarity will be "0.26 M".

Explanation:

The given values are:

Mass,

= 2.00 g

Volume of solution,

= 100 mL

or,

= [tex]\frac{100}{1000}[/tex]

= [tex]0.1 \ L[/tex]

Molar mass of KCl,

= 74.5 gm

Now,

Moles of KCl will be:

=  [tex]\frac{Given \ mass}{Molar \ mass}[/tex]

=  [tex]\frac{2}{74.5}[/tex]

=  [tex]0.026[/tex]

hence,

The molarity will be:

=  [tex]\frac{Moles \ of \ solute}{Volume \ of \ solution}[/tex]

On substituting the values, we get

=  [tex]\frac{0.026}{0.1}[/tex]

=  [tex]0.26 \ M[/tex]

why can molar mass be used as a conversion factor

Answers

From the relative atomic mass of each element, it is possible to determine each element's molar mass by multiplying the molar mass constant (1 g/mol) by the atomic weight of that particular element. The molar mass value can be used as a conversion factor to facilitate mass-to-mole and mole-to-mass conversions.

Answer:

A substances molar mass is determined by increasing its relative nuclear mass by the molar mass constanttt (1 g/mol). So the molar mass consistent can be utilized to change mass over to moles. So by duplicating a given mass by the molar mass, the measure of moles of the substance can be determined.

Explanation:

From the general nuclear mass of every component, it is feasible to decide every component's molar mass by duplicating the molar mass steady (1 g/mol) by the nuclear load of that specific element.The molar mass worth can be utilized as a change factor to work with mass-to-mole and mole-to-mass transformations.

Brainliest?

Balance the following chemical equation by providing the correct coefficients:
[ ]HBr + [ ]Ba(OH)2 -> [ ]BaBr2 + [ ]H20

Answers

Answer:

2HBr + Ba(OH)2 → BaBr2 + 2H2O

Explanation:

Hydrogen Bromide + Barium Hydroxide = Barium Bromide + Water

The balanced chemical equation with the correct coefficients is 2HBr + Ba(OH)₂ → BaBr₂ + 2H₂O.

First balancing the barium (Ba) atoms first. There is one barium atom on the left side and one on the right side, so no coefficients are needed for barium.

HBr + Ba(OH)₂ → BaBr₂ + H₂O

There is one hydrogen atom on the left side and two hydrogen atoms on the right side. To balance the hydrogen, place a coefficient of 2 in front of HBr:

2HBr + Ba(OH)₂ → BaBr₂ + H₂O

There are two bromine atoms on the left side and two bromine atoms on the right side, so they are already balanced.

2HBr + Ba(OH)₂ → BaBr₂ + H₂O

There is one barium atom on the left side and one barium atom on the right side, so they are already balanced.

Balance the oxygen (O) atoms. There are two oxygen atoms on the left side and only one on the right side. To balance the oxygen, place a coefficient of 2 in front of H₂O.

2HBr + Ba(OH)₂ → BaBr₂ + 2H₂O

To learn more about the coefficients, follow the link:

https://brainly.com/question/23702958

#SPJ6

put some ice in a clean glass. examine it every 3 minutes for half oan hour . DIscribe what happens to the ice​

Answers

Answer:

the ice starts melting and turns into water

the ice would start melting more and more and at the end it would result into being water

Which reaction type is really part of another type of reaction but treated separately? Explain

Answers

Answer:

Oxidation - reduction reaction which is called redox reaction.

Explanation:

The type of reaction that is a part of another type but treated separately is called Oxidation - reduction reaction.

Thus is because they usually involve 2 separate half reactions which are oxidation reactions that involve loss of electrons and then reduction equations which involve gain of electrons.

They are treated separately for example when sodium reacts with chlorine to form sodium chloride.

2Na + Cl2 = 2NaCl

Now, sodium undergoes oxidation by loosing elctrons and it's half reaction is;

2Na → 2Na​^(+) + 2e^(-)

​​Meanwhile chlorine undergoes reduction by gaining electrons and its half reaction is;

Cl2 + 2e^(-) → 2Cl^(-)

When two solutions are combined, what evidence would show a chemical
reaction has occurred? *
temperature remains constant
a precipitate forms
volume increases

Answers

a precipitate forms because when a chemical change occurs a new substance is formed.

A certain element has only two naturally occurring isotopes: one with 18 neutrons and the other with 20 neutrons. The element forms I- charged ions when in ionic compounds. Predict the identity of the element. What number of electrons does the charged ion have?

Answers

Answer:

[Cl-18]⁻ & [Cl-20]⁻

Explanation:

By definition isotopes are elements with the same number of protons by different number of neutrons. Elements X-18 & X-20 have 17 protons and represent Chlorine isotopes Cl-18 & Cl-20 each with 17 protons and 18 electrons to give the isotopes a -1 oxidation state. Both isotope of chlorine have 7 electron in its valence shell and 10 electrons in its core structure.  Gaining 1 electron fills the valence octet and establishes a -1 oxidation state.

Define a transverse wave

Answers

Transverse wave, motion in which all points on a wave oscillate along paths at right angles to the direction of the wave's advance. Surface ripples on water, seismic S (secondary) waves, and electromagnetic (e.g., radio and light) waves are examples of transverse waves.

Balance the following chemical equation by providing the correct coefficients.
[ ]Na+[ ]H2O -> [ ] NaOH + [ ]H2

Answers

Answer:

[2 ]Na+[2 ]H2O -> [ 2] NaOH + [1]H2

Calculate the work for the expansion of CO2 from 1.0 to 6.5 litres against pressure of 1.0 atm at constant temperature

Answers

Answer:

557.3J is the work of expansion of the CO2 gas

Explanation:

The work of expansion of a gas under constant temperature and pressure (Isobaric pressure) is:

W = P*ΔV

Where W is work

P is pressure = 1.0atm

ΔV = Final volume - Initial Volume = 6.5L - 1.0L = 5.5L

Replacing:

W = 1.0atm*5.5L

W = 5.5atmL

In Joules (1atmL = 101.325J):

5.5atmL * (101.325J / 1atmL) =

557.3J is the work of expansion of the CO2 gas

What test would be done to prove the color of specific compounds is due to metal ions apart from flame test

Answers

Answer:

Borax bead test

Explanation:

Another test that can be used to identify colored ions in a specific compound such as salt is called "Borax bead test".

This test involves use of a clear glassy bead of borax that is joined together in a wire loop which is going to be involved in chemical reaction with the salts of certain metals.

This reaction will produce colors that we can use to identify the exact metal ions that are present.

Drugs change the chemical processes in what organ to cause addiction?

Answers

Answer:

the brain

Explanation:

drugs mainly affect the brain to keep the addiction going

Answer:

In pituitary gland addiction causes to drugs

Mark me as brainliest

A graph titled Average Amplitude of Waves from 2009 to 2011 with vertical axis Average Amplitude (meters) and horizontal axis Year. A line goes in straight segments from 2009 50 to 2010 175 to 2012 125.
A structural engineer is using this table to design a wall to protect a city near the ocean.

How high should the engineer build the wall?

50 meters
100 meters
150 meters
200 meters

Answers

Answer:

200

Explanation:

got it right on the test

Answer:

200

Explanation:

The equation below shows the decomposition of lead nitrate. How many grams of lead (II) oxide are also produced when 20.5 g NO2 is formed?

Answers

Answer:

ligma

Explanation:

5.
Which sentence best describes the relationship between genes and chromosomes?
A.
Genes are found within chromosomes.
B.
Several chromosomes make up one gene.
C.
Genes and chromosomes are the only things that form the nucleus.
D.
Several genes are attached to different parts of the Golgi apparatus.

Answers

Answer:

a

Explanation:

The answer to this question is a

I need answers to the lab report.

Answers

Answer:

Title.

Abstract.

Introduction.

Method.

Results and analysis.

Discussion.

Conclusion.

References.

0.47 M KNO3 solution contains .757475 mol of KNO3 what is the volume

Answers

Answer:

Volume is the quantity of three-dimensional  

Explanation:

3. How are natural selection and selective breeding related?

can someone help?

Answers

Answer:

In natural selection, organisms adapt to the environment to best suit nature's needs to survive. In selective breeding, it's as if nature were humans and the humans can choose which organisms can survive and die. They do it so they can develop organisms with desirable characteristics.

Which of the following statements concerning double covalent bonds is correct?
They are found only in molecules that contain S or O.
S
They are found only in molecules that contain a coordinate covalent bond.
They occur on y between atoms containing 4 valence electrons.
They involve tie sharing of 2 electron pairs.
t​

Answers

they involve tie sharing of 2 electrons pairs.

A
B
prevents different air masses from mixing.
a. Direction
b. Location
c. Density
d. Size

Answers

Answer:

c Density

Explanation:

I don'tknow if I am right if I am wrong correct me

what is the similar of snow and sleet pls help me

Answers

Answer:

Explanation: Snow forms in clouds at temperatures below freezing. As snow falls through the atmosphere, the air remains at least 32° F or colder. ... It then re-enters another pocket of cold air before reaching the surface. The snowflake refreezes and becomes an ice pellet we call sleet.

what is the kinetic energy of a 5 kg bowling ball rolling at a velocity of 10 m/s?​

Answers

Answer:

K = 250 J.

Explanation:

Hello there!

In this case, by knowing that the kinetic energy is such energy associated to the movement of an object, it is possible for us to recall the formula for its calculation in terms of mass and velocity as shown below:

[tex]K=\frac{1}{2} mv^2[/tex]

Thus, given the mass and velocity, it is possible to obtain the following kinetic energy:

[tex]K=\frac{1}{2} (5kg)(10m/s)^2\\\\K=250J[/tex]

Regards!

The isotopes K-37 and K-42 have the same...

1) number of neutrons

2) number of protons

3) mass number for their atoms

Answers

Answer:

WHEA O IN AN EREM STATO. PETUA TOT low 6 EN 6ACY STATE ... Determine both the total number of protons and the total number of neutrons in an atom of the naturally occurring carbon isotope with the largest mass number.

Explanation:

ok

2.a. 3.26 g of iron powder are added to 80.0 cm3 of 0.200 mol dm-3 copper(II)
sulfate solution. The following reaction occurs: Fe (s) + CuSO4 (aq) → FeSO4 (aq)
+ Cu (s)Determine the limiting reactant showing your working. *
Your answer

Answers

Answer:

The limiting reactant is CuSO₄.

Explanation:

The reaction is:

Fe(s) + CuSO₄(aq) → FeSO₄(aq) + Cu(s)      (1)

To find the limiting reactant we need to find the number of moles of the reactants.

[tex] \eta_{Fe} = \frac{m}{A_{r}} [/tex]

Where:

m: is the mass of iron = 3.26 g  

[tex]A_{r}[/tex]: is the standard atomic weight of iron = 55.845 g/mol

[tex]\eta_{Fe} = \frac{3.26 g}{55.845 g/mol} = 0.058 moles [/tex]

[tex] \eta_{CuSO_{4}} = M*V [/tex]                

Where:

M: is the concentration of the CuSO₄ = 0.200 mol/dm⁻³

V: is the volume of the solution = 80.0 cm³

First, we need to convert the units of the volume to dm³ knowing that 1 dm = 10 cm and 1 L= 1 dm³.

[tex] V = 80.0 cm^{3}*\frac{1 dm^{3}}{(10 cm)^{3}} = 0.080 dm^{3} [/tex]

Now, the number of CuSO₄ moles is:

[tex] \eta_{CuSO_{4}} = M*V = 0.200 mol/dm^{3}*0.080 dm^{3} = 0.016 moles [/tex]            

So, to determine the limiting reactant we need to use the molar ratio from equation (1), Fe:CuSO₄ = 1:1

[tex]\eta_{Fe} = \frac{1 mol Fe}{1 mol CuSO_{4}}*0.016 moles \: CuSO_{4} = 0.016 moles[/tex]

Since we need 0.016 moles of Fe to react with 0.016 moles of CuSO₄ and initially we have 0.058 moles of Fe, then the limiting reactant is CuSO₄.  

Therefore, the limiting reactant is CuSO₄.  

I hope it helps you!

The limiting reactant would be CuSO4

Looking at the equation of the reaction:

Fe (s) + CuSO4 (aq) → FeSO4 (aq) + Cu (s)

The mole ratio of Fe to CuSO4 is 1:1. Thus, every 1 mole of Fe will require 1 mole of CuSO4 for reaction.

Recall that: mole = mass/molar mass

Also: mole = molarity x volume

mole of Fe = 3.26/55.8

                    = 0.058 moles

mole of CuSO4 = 0.200 x 80/1000

                            = 0.016

The mole of Fe in the reaction is more than the mole of CuSO4. Thus, CuSO4 is the limiting reactant of the reaction. Fe is in excess.

More on limiting reactants can be found here: https://brainly.com/question/14225536?referrer=searchResults

Which event is an example of condensation?

Answers

"Fog forms in a valley", a physical process called condensation occurs when a gas or vapour transforms into a liquid state.

Which of the following example of condensation?

On a chilly soda can, water gathers. As the air cools around the container, water vapor in the atmosphere reaches its dew point and condenses into liquid droplets. Condensation is the conversion of water vapor into liquid. On the outside of a chilly glass or container, water vapor condenses and turns into liquid water (sweat).

What three condensation reactions are examples?

Aldol condensation, Knoevenagel condensation, Claisen condensation, and Dieckman condensation (intramolecular Claisen condensation) are a few examples of common condensations that produce alcohols as a by-product.

To know more about Condensation visit:-

https://brainly.com/question/1447093

#SPJ1

please help me ;-; I need help grades are in tomorrow

Answers

Explanation:

Sorry i cant see the mass number of Lithium.

And fyi if the N in question refers to Neutron number, the answer is as i stated.

But, if the N refers to Nucleon number the answer is proton number + mass number

I need help on this 6th grader science plants.

Answers

Answer:

A - A fruit of vegetable will begin to grow

A gas has the volume of 45mL at 25 C is heated to 50 C. What is the new volume of the gas? P1V1 = P2V2 V1/T1 = V2/T2 PV = nRT V1/T1 x V2/T2​

Answers

Answer:

Option b (V1/T1 = V2/T2) is the right alternative or the new volume will be "0.048 L".

Explanation:

The given values are:

Temperature,

T₁ = 25°C

or,

   = 298.15 K

T₂ = 50°C

or,

    = 323.15 K

Volume,

V₁ = 45 mL

or,

    = 0.045 L

V₂ = ?

As we know,

⇒  [tex]\frac{V_1}{T_1} =\frac{V_2}{T_2}[/tex]

Or,

⇒  [tex]V_2=\frac{V_1\times T_2}{T_1}[/tex]

On substituting the values, we get

⇒       [tex]=\frac{0.045\times 323.15}{298.15}[/tex]

⇒       [tex]=\frac{14.541}{298.15}[/tex]

⇒       [tex]=0.048 \ L[/tex]

Other Questions
. Three employees each clocked a different number of hours worked this week.Employee Hours Worked Total Earned (in dollars)A 35 $420B 22 $242C 16 $216Which employee has the highest earnings per hour?A) Employee AB) Employee BC) Employee C Biotic and abiotic parts of an ecosystem can actually become limiting factors for a population. Which of the following are BIOTIC limiting factors?Sunlight availability for growth of plantsNot enough grass for deer to eatDrought on the Savannah of AfricaFlooding due a storm surge along coastal areas. How do I solve this? I need step by steps, please. Which algebraic expression is equivalent to the expression below? A. 19x + 2 B. 19x + 8 C. 16x + 8 D. 7x + 2 I WILL GIVE BRIANLIST!! ASAP Which major event of the Middle Ages - the Crusades, spread of the Black Death, or the rise of nation states - created the greatest change in Europe, &why? EXPLAIN WITH FULL SENTENCES In the figure below, m2 1=(x-12) and mZ2 =5x.Find the angle measures. Why does Africa have less nation-states compared to other parts of the world? Prisha is buying sandwiches at a caf for herself and her daughter. If she buys 2 tuna sandwiches, the cost will be $14. If she buys 1 tuna sandwich and 1 chicken sandwich, the cost will be $16. How much will the cost be if she buys 2 chicken sandwiches? Pls help meee!!! And thank you sooo much #7 What is the best description of the authors purpose for writing this text?A) to persuade readers to work for the United NationsB) to inform readers about human rights violations that took place during World War IIC) to entertain readers with stories about Eleanor Roosevelts time in the White HouseD) to inform readers about what the Universal Declaration of Human Rights is and why it is significant Will mark brainliest! Please help me with this math! No links or trolls please. :) Troy won the Trojan War.TrueFalsePLZ NO FILES! 2. Which of the following religions believe in reincarnation? a. Judaism, Hinduism, Islam, and Zoroastrianismb. Hinduism, Christianity, Buddhism, and Jainismc. Hinduism, Islam, Judaism, and Sikhismd. Hinduism, Confucianism, Zoroastrianism, and Islame. Hinduism, Buddhism, Jainism, and Sikhism Identify the major players shown in the simulation: mRNA, Codon, Amino Acid, tRNA, anticodon, ribosome. The following passage (paragraphs 7-8) mainly suggests that .Proponents of the astronaut-preferred camp point, quite rightfully, at the versatility and independence of humans. Fans of human spaceflight are certainly correct when they remind us that humans are highly versatile. People observe the conditions around them and can react to circumstances as needed.However, people are also fragile. They need food, water, and air. They can exist in only a narrow range of temperatures and find inhospitable both vacuums and a radioactive environment. While some adventurers might prefer to remain in space forever, many of them expect to land gently back on Earth. All of these considerations are extremely challenging and not important for robotic missions.Answer choices for the above questionA. the author is aware of and considers opposition to his positionB. the author thinks humans are too weak to travel in spaceC. the author thinks robots are not as versatile as humansD. the author is not a fan of human spaceflight Make a connection between human population growth and climate change How many degrees equal in radians? How many revolutions (turns) equal radians? Rosalita's and Antonio's are Mexican restaurant chains. Each restaurant offers similar items on their menus. However, Antonio's restaurants are positioned in the market as elegant establishments with high prices. Rosalita's, on the other hand, are located in middle-class neighborhoods, with a casual atmosphere that welcomes families with young children. The prices at Rosalita's are in the moderate range. When evaluating the marketing strategies used by these restaurants, we can conclude that Marigold Corp. issued at a premium of $10500 a $192000 bond issue convertible into 4700 shares of common stock (par value $20). At the time of the conversion, the unamortized premium is $4000, the market value of the bonds is $212000, and the stock is quoted on the market at $60 per share. If the bonds are converted into common, what is the amount of paid-in capital in excess of par to be recorded on the conversion of the bonds WHAT IS THE IMPACT OF COAL AND STEEL TODAY? HELP BESTIES!! ^O^