the distance from the top of one sound wave to the top of the next sound wave is called a (n)

Answers

Answer 1

Answer:

The   answer is wavelength

Explanation:


Related Questions

What is the wavelength of a light frequency 7.21x10^14Hz

Answers

Answer:

6.0 x 105

Explanation:

Answer:6.0 x l05

Explanation:

Which of these is a conversion from chemical energy to mechanical energy?

A. A dark light bulb starting to glow

B. A ball rolling down a hill

C. A person lifting a weight

D. A potato being heated in an oven

Answers

Answer:

C . A person lifting a weight

Why did the United States government set aside land for the first national parks?


A.

They wanted to settle the west as quickly as possible.


B.

They worried people would destroy the animals and land.


C.

They worried Native Americans wouldn’t have anywhere to go.


D.

They wanted to make sure all citizens would get a piece of land.

Answers

B) They worries people would destroy the animals and land.

Answer:

b

Explanation:

hope it helps

A 52-gram sample of water that has an initial temperature of 10.0 °C absorbs 4,130 joules. If the specific heat of water is 4.184 J/(g °C), what is the final temperature of the water? (4 points) Group of answer choices 11 °C 19 °C 29 °C 51 °C

Answers

Answer:

28.98°C

Explanation:

Mass = 52g

Initial temperature (T1) = 10°C

Final temperature (T2) = ?

Heat energy (Q) = 4130J

Specific heat capacity of water = 4.184J/g°C

Heat energy (Q) = mc∇T

Q = heat energy

M = mass of the substance

C = specific heat capacity of the substance

∇T = change in temperature (T2 - T1)

Q = mc∇T

4130 = 52 * 4.184 * (T2 - 10)

4130 = 217.568 * ( T2 - 10)

4130 = 217.568T2 - 2175.68

217.568T2 = 4130 + 2175.68

217.57T2 = 6305.68

T2 = 6305.68 / 217.57

T2 = 28.98°C

Final temperature is 28.98°C

A student observes the chemical process described by this equation:

4Al + 3O2 → 2Al2O3

How does the mass of the new substance compare to the total mass of the starting materials?

Answers

Answer:

Both are equal

Explanation:

Mass of starting material i.e Aluminium is [tex]4.480 * 10^{-23}[/tex] grams

The weight of oxygen is [tex]2.65 * 10^{-23}[/tex]

There are 4 atoms of aluminium and 3 atoms of oxygen

Thus, the total mass of starting material is

[tex]4 *[/tex] mass of one atom of aluminium [tex]+ 6 *[/tex] mass of one atom of oxygen

[tex]4 * 4.480 * 10^{-23} + 6* 2.65 * 10^{-23}[/tex]

[tex]35.1 * 10^{-23}[/tex] grams

Mass of new substance is also equal to

[tex]4 *[/tex] mass of one atom of aluminium [tex]+ 6 *[/tex] mass of one atom of oxygen

[tex]4 * 4.480 * 10^{-23} + 6* 2.65 * 10^{-23}[/tex]

[tex]35.1 * 10^{-23}[/tex] grams

Blast furnaces extra pure iron from the Iron(IIl)oxide in iron ore in a two step sequence. In the first step, carbon and oxygen react to form carbon monoxide:
2C(s)+O2(g) arrow 2CO(g)
In the second step, iron(lll) oxide and carbon monoxide react to form Iron and carbon dioxide:
Fe203(s) + 3CO(g) arrow 2Fe(s)+ 3CO2(g)
Suppose the yield of the first step is 71.% and the yield of the second step is 72.%. Calculate the mass of oxygen required to make 7.0 kg of iron.
Be sure your answer has a unit symbol, if needed, and is rounded to 2 significant digits.

Answers

Answer:

5.9 kg  

Explanation:

We must work backwards from the second step to work out the mass of oxygen.

1. Second step

Mᵣ:                                     55.84

            Fe₂O₃ + 3CO  ⟶  2Fe  +  3CO₂

m/kg:                                    7.0

(a) Moles of Fe

[tex]\text{Moles of FeO} = \text{7000 g Fe} \times \dfrac{\text{1 mol Fe}}{\text{55.84 g Fe}} = \text{125 mol Fe}[/tex]

(b) Moles of CO

[tex]\text{Moles of CO} = \text{125 mol Fe} \times \dfrac{\text{3 mol CO}}{\text{2 mol Fe}} = \text{188 mol CO}[/tex]

However, this is the theoretical yield.

The actual yield is 72. %.

We need more CO and Fe₂O₃ to get the theoretical yield of Fe.

(c) Percent yield

[tex]\begin{array}{rcl}\text{Percent yield} &=& \dfrac{\text{ actual yield}}{\text{ theoretical yield}} \times 100 \, \%\\\\ 72. \, \% & = & \dfrac{\text{188 mol}}{\text{actual yield}} \times 100 \,\%\\\\0.72 &= &\dfrac{\text{188 mol}}{\text{actual yield}}\\\\\text{Actual yield} & = & \dfrac{\text{188 mol}}{0.72}\\& = & \textbf{261 mol}\\\\\end{array}[/tex]

We must use 261 mol of CO to get 7.0 kg of Fe.

2. First step

Mᵣ:                32.00

            2C   +  O₂   ⟶  2CO

n/mol:                             261

(a) Moles of O₂

[tex]\text{Moles of O}_{2} = \text{261 mol CO} \times \dfrac{\text{1 mol O}_{2}}{\text{2 mol CO}} = \text{131 mol O}_{2}[/tex]

(b) Mass of O₂

[tex]\text{Mass of O}_{2}= \text{131 mol O }_{2} \times \dfrac{\text{32.00 g O}_{2}}{\text{1 mol O}_{2}} = \text{4180 g O}_{2}[/tex]

However, this is the theoretical yield.

The actual yield is 71. %.

We need more C and O₂ to get the theoretical yield of CO.

(c) Percent yield

[tex]\begin{array}{rcl}71. \, \% & = & \dfrac{\text{188 mol}}{\text{actual yield}} \times 100 \,\%\\\\0.71 &= &\dfrac{\text{4180 g}}{\text{actual yield}}\\\\\text{Actual yield} & = & \dfrac{\text{4180 g}}{0.71}\\\\& = & \text{5900 g}\\& = & \textbf{5.9 kg}\\\end{array}[/tex]

We need 5.9 kg of O₂ to produce 7.0 kg of Fe.

Which sequence represents the relationship between temperature and volume as explained by the kinetic-molecular theory?
higher temperature → more kinetic energy → more space between particles – higher volume
higher temperature → less kinetic energy → less space between particles higher volume
o higher temperature → more kinetic energy → less space between particles → lower volume
higher temperature → less kinetic energy → more space between particles lower volume

Answers

Answer:

higher temperature → less kinetic energy → less space between particles higher volume

Explanation:

Which of the following is the energy that comes from changes in an atom’s nucleus?

a. thermal energy
b. nuclear energy
c. light energy
d. electrical

Answers

Light energy is the correct answer

Body systems such as the nervous and digestive systems work together and help the body
maintain homeostasis. Which of the following correctly describes one way that the nervous
system and the digestive system work together?

Lungs contract during chewing so that food won't be inhaled.

Blood flow to the stomach and intestines decreases during eating.

The involuntary muscles in the jaw stimulate spinal cord neurons to initiate chewing.

Neurons in the brain stimulate smooth muscles in the intestines to move food through the body.

Answers

The last one because the neurons allow the intestines to work properly

Compare and contrast the dynamics of energy transfer between the Eocene Period and the Cryogenian Period. In which period would you say that Earth's system is experiencing a net gain in energy and in which period would you say that Earth's system is experiencing a net loss in energy

Answers

Answer:

The Eocene Period is experiencing net gain in energy while Cryogenian Period is experiencing a net loss in energy.

Explanation:

In Eocene Period, the population of mammals such as horses , whales and bats etc were high due to the presence of high amount of food and good atmospheric condition such as high temperature while the population of animals were low in Cryogenian Period due to the presence of very low temperature which experiencing loss of energy. Most of area of the earth consist of icy desert.

Describe how alleles and genes are related.

Answers

Answer:

A gene is a stretch of DNA or RNA that determines a certain trait. Genes mutate and can take two or more alternative forms; an allele is one of these forms of a gene. Chromosomes occur in pairs so organisms have two alleles for each gene one allele in each chromosome in the pair.

Correct name of the compound

Answers

Answer:

Calcium Nitride

Explanation:

The process by which complex compounds are broken down by enzymes and by which many organic alcohols are formed is called

Answers

Answer:

fermentation

Explanation:

Explain the different principles that allow roller coasters to rip and roar around the tracks. In your response, include how energy is transferred back and forth between kinetic and potential.

Answers

Answer:

In the roller coasters the potential energy that is given is the gravitational potential energy, which this energy increases its value as the object moves away from the earth, that is to say, the more height the roller coaster acquires the more gravitational potential energy it will have, and Said train where people usually get on the roller coaster will descend or descend with greater acceleration.

This gravitational potential energy once the mountain begins to descend or descend is converted into kinetic energy

Explanation:

This that we wrote above is considering that the roller coaster does not have curved routes but rectilinear, in the case that it had curved routes, a force would be added in addition to those written that is the centripetal force, it is the same force that appears in the centrifuges or dryers of clothes or the same washing machine. This force, the centripetal force is the force that draws a moving object, in a curvilinear path, towards the center of the curvature.

Do metals or nonmetals have the greatest tendency to lose electrons and become positive ions?

Answers

Answer:

The metals have the tedency to lose electrons and become positive ions

Explanation:

In order to attain noble gases electronic configuration, metals of group I A lose one electron and II A lose 2 electrons with ionization energy.

How does activation energy affect the progress of a reaction?
O A. The reaction will not occur unless the activation energy is met.
B. The activation energy decreases the energy needed for a reaction
to progress.
C. The activation energy increases how quickly the reaction will
progress.
D. The activation energy determines equilibrium concentrations of
products.

Answers

Answer:

The reaction will not occur unless the activation energy is met.

Explanation

Answer:

A. The reaction will not occur unless the activation energy is met.

Explanation:

a.p.e.x

Of the following chemical properties , which one is not one that Covalent compounds DO NOT have ?

a
They share electrons between their elements.

b
They have weaker bonds.

c
They have relatviely higher melting and boiling points.

d
Many of these compounds are usallly liquids or gases at room temperature.

Answers

Answer:

D. They are usually liquids or gases at room temperature.

Explanation:

Covalent compounds have covalent bonds, meaning that they share electrons between elements and have relatively higher melting melting and boiling points due to the strength of their bonds. However covalent bonds are weaker than ionic bonds which is why B is correct. D is the only incorrect one because it is incorrect and contradicts point C. If a substance has a high melting/boiling point than it is much more likely to be solid at room temperature because of the high temperature it needs to pass in order to be a liquid or gas.

Hope this helped!

Which statements correctly describe the rock cycle? Check all that apply.

Rocks are preserved through the process.

Rocks change from one type to another.

Different rock groups are interrelated.

Rocks change from one type to another in a specific order.

Environmental conditions influence a change in rock type.

Answers

Answer: I italicize for checking

Rocks are preserved through the process.Rocks change from one type to another.Different rock groups are interrelated.Rocks change from one type to another in a specific order.Environmental conditions influence a change in rock type.

Explanation:

Rocks are preserved, as in you can't destroy them completely, but no, they don't stay the same they change.

11. Calculate the energy required to produce 12.00 mol of CI207 on the basis of the
following balanced equation.
2012(g) + 702(g) + 130 kcal yields 201207(9)

Answers

Answer: 780 kcal are required to produce 12.00 mol of [tex]Cl_2O_7[/tex]

Explanation:

Endothermic reactions are defined as the reactions in which energy of the product is greater than the energy of the reactants. The total energy is absorbed in the form of heat and written along with reactants.

The balanced chemical reaction is:

[tex]2Cl_2(g)+7O_2(g)+130kcal\rightarrow 2Cl_2O_7(g)[/tex]

According to stoichiometry :

2 moles of [tex]Cl_2O_7[/tex] are produced by absorption of energy = 130 kcal

Thus 12.00 moles of [tex]Cl_2O_7[/tex] are produced by absorption of energy = [tex]\frac{130}{2}\times 12.00=780kcal[/tex]

Thus 780 kcal are required to produce 12.00 mol of [tex]Cl_2O_7[/tex]


Scientific Method
PART A: Put the following steps of the scientific method in the correct order,

1 Data
2 Hypothesis
3. Conclusion
4. Problem
5. Variables
6. Research
7. Procedure

Answers

Answer:

Problem,  Variables,  Hypothesis,  Research,  Procedure,  Data, Conclusion.

Explanation:

First, you have to know what the problem that you're talking about is. Then, you have to know the independent, dependent, and controlled variables are in order to make a hypothesis. Then do research about the topic. After that, you make the procedure your experiment, if that's what your doing. Then after the experiment, you find the data. Using that data, you make a conclusion.

The mole concept will most likely be used in
calculating the average height of a mountain range.
measuring how many liters of gasoline are poured into a tank.
determining how many ozone molecules are lost in the atmosphere.
finding the mass of a piece of steak in a butcher shop.

Answers

Answer:

determining how many ozone molecules are lost in the atmosphere

Pls Mark as Brainliest!!! if this helps...

The mole concept The mole concept can be used to determine the number of ozone molecules are lost in the atmosphere.

The mole concept was introduced by Avogadro. The mole is the SI unit of amount of substance. According to Avogadro, one mole of a substance contains 6.02 × 10^23 atoms, ions, molecules etc.

The mole concept is important in many chemical calculations. The mole concept can be used to determine the number of ozone molecules are lost in the atmosphere. (option C)

Learn more: https://brainly.com/question/7287712

0.450 moles of K2SO4 are dissolved in 195.0 mL of water. Calculate the molarity of the solution.

Answers

Answer:

2.31M

Explanation:

The following data were obtained from the question:

Mole of K2SO4 = 0.450 mole

Volume of water = 195.0 mL = 195/1000 = 0.195L

Molarity =...?

Molarity is defined as the mole of solute per unit litre of the solution. This can be expressed as:

Molarity = mole /Volume

With the above formula we can calculate the molarity of the K2SO4 solution as follow:

Molarity = mole /Volume

Molarity = 0.450/0.195

Molarity = 2.31M

A gas occupies a volume of 2.45 L at a pressure of 1.03 atm. What volume will the
gas occupy if the pressure changes to 0.980 atm and the temperature remains
unchanged? Show your work in the space below. *​

Answers

Answer:

2.58 L

Explanation:

Please see the step-by-step solution in the picture attached below.

Hope this answer can help you. Have a nice day!

At constant temperature, if the pressure of the gas decreases to the given value, the volume increases to 2.58L.

What is Boyle's law?

Boyle's law simply states that "the volume of any given quantity of gas is inversely proportional to its pressure as long as temperature remains constant.

Boyle's law is expressed as;

P₁V₁ = P₂V₂

Where P₁ is Initial Pressure, V₁ is Initial volume, P₂ is Final Pressure and V₂ is Final volume.

Given the data in the question

Initial volume V₁ = 2.45LInitial pressure P₁ = 1.03atmFinal pressure P₂ = 0.980 atmFinal volume V₂ = ?

P₁V₁ = P₂V₂

V₂ = P₁V₁ / P₂

V₂ = ( 1.03atm × 2.45L ) / 0.980atm

V₂ = 2.5235Latm / 0.980atm

V₂ = 2.58L

Therefore, at constant temperature, if the pressure of the gas decreases to the given value, the volume increases to 2.58L.

Learn more about Boyle's law here: brainly.com/question/1437490

What name is given to any chemical which increase the rate of a chemical reaction

Answers

Answer:

It is called catalyst.

Answer:

A catalyst

Explanation:

is a substance that can alter the rate of a chemical reaction. Catalysts can be successfully used to increase the rate of a chemical reaction.

What are all of the possible products of the electrolysis of Sodium Chloride in aqueous solution of water when the electrodes are made of copper?

A photo has been provided to show what is happening

Answers

Answer:

HDHERFEHFFFHRF

Explanation:


What is the volume of solution (in mL) produced when 91.80g of Mg(OH)2 are used
to produce a 0.7M solution? Record your answer to 1 decimal places.

Answers

Answer:  The volume of solution is 2248 ml

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

[tex]Molarity=\frac{n\times 1000}{V_s}[/tex]

where,

n = moles of solute

[tex]V_s[/tex] = volume of solution in ml

moles of [tex]Mg(OH)_2[/tex] = [tex]\frac{\text {given mass}}{\text {Molar mass}}=\frac{91.80g}{58.32g/mol}=1.574mol[/tex]

Now put all the given values in the formula of molality, we get

[tex]0.7=\frac{1.574\times 1000}{V_s}[/tex]

[tex]V_s=\frac{1.574\times 1000}{0.7}=2248ml[/tex]

Therefore, the volume of solution is 2248 ml

If is known how deep the water table in an area is, it is known how deep to dig to reach


Pores

The unsaturated zone

Solid rock

Groundwater

Answers

Answer:
Groundwater

Explanation:
Groundwater is really soft to go through as sand.

Answer:

grond water

Explanation:

If the mole fraction of sulfuric acid H2SO4 is 0.432 what is the percent by mass of H2SO4.

Answers

Answer:

19.47%

Explanation:

The percentage by mass of [tex]H_2SO_4[/tex] would be 19.47%.

The percentage by mass of a substance in solution is calculated as:

   [tex]\frac{mass of substance}{mass of substance + water} * 100%[/tex]

Given that the mole fraction of [tex]H_2SO_4[/tex] = 0.432

The total number of mole fraction of a solution = 1

Hence, mole fraction of water = 1 - 0.432 = 0.568

Mass of water = molar mass x mole

                              = 98.079 x 0.432 = 42.37 g

Mass of [tex]H_2SO_4[/tex] = molar mass x mole

                          = 18.02 x 0.568 = 10.24 g

Hence,

%mass of [tex]H_2SO_4[/tex] = [tex]\frac{10.24}{10.24 + 42.37} * 100[/tex]

                         = 19.47%

What was the purpose of the Apollo space missions?

to collect rock samples from Mars

to land on Saturn

to collect rock samples from the moon

to land on Jupiter

Answers

Answer:

i agree with the above to collect rock samples

Explanation:

took test got 100 best of luck

The  purpose of the Apollo space missions was to to collect rock samples from the moon.

What is moon?

The Moon is Earth's only natural satellite. It is the fifth largest satellite in the Solar System and the largest and most massive relative to its parent planet, with a diameter about one-quarter that of Earth (comparable to the width of Australia).The Moon is a planetary-mass object with a differentiated rocky body, making it a satellite planet under the geophysical definitions of the term and larger than all known dwarf planets of the Solar System.

It lacks any significant atmosphere, hydrosphere, or magnetic field. Its surface gravity is about one-sixth of Earth's at 0.1654 g, with Jupiter's moon Io being the only satellite in the Solar System known to have a higher surface gravity and density.

Learn more about moon,here:

https://brainly.com/question/30653068

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how does the Doppler effect related to the universal expanding?

Answers

The Doppler effect doesn't just apply to sound. It works with all types of waves, which includes light. Edwin Hubble used the Doppler effect to determine that the universe is expanding. Hubble found that the light from distant galaxies was shifted toward lower frequencies, to the red end of the spectrum. This is known as a red Doppler shift, or a red-shift. If the galaxies were moving toward Hubble, the light would have been blue-shifted.

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