Red light has a wavelength of (7. 21x10^7)m. What is the frequency of this light?

Answers

Answer 1

Answer:

TO answer this question i need wave speed

Explanation:


Related Questions

What will happen to the fringe spacing if the wavelength of the light is decreased?.

Answers

Answer:

The formula is the form -

m λ = d sin Θ

As the wavelength λ is decreased sin Θ will also decrease.

One can see from the derivation that as the wavelength, being considered,

is decreased the dispersion will also decrease.

Why does the law of conversion of mass make sense?​

Answers

Explanation:

If u mix 1g of salt with 100 ml of water, both dissolves but at the same time the mass of the solution increases.

According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants. The law of conservation of mass is useful for a number of calculations and can be used to solve for unknown masses, such the amount of gas consumed or produced during a reaction

Answer:

The law of conservation of mass was crucial to the progression of chemistry, as it helped scientists understand that substances did not disappear as result of a reaction as they may appear to do; rather, they transform into another substance of equal mass.

Explanation:

If you were to build a pipe organ with open-tube pipes spanning the range from 25 hz to 19 khz. The speed of sound in air is 343 m/s

Answers

Building a pipe organ with open-tube pipes spanning the range from 25 hz to 19 khz will require the length of the shortest pipe to be 0.018m

What is Length?

This is defined as the measurement or extent of a substance from end to end. The formula is shown below:

L = v/f where v is speed , f is frequency

f1 = 25hz , f2 = 19khz

The length for both sides is seen below:

l1 = 343/25 = 13.72m

l2 = 343/19000 = 0.018m.

The length of the shortest pipe is therefore 0.018m.

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The frequency of a repeated event is the number of occurrences per unit of time. The length of the shortest pipe is 0.018 m.

What is the frequency?

The frequency of a repeated event is the number of occurrences per unit of time. It is also known as temporal frequency to distinguish it from spatial frequency, and ordinary frequency to distinguish it from angular frequency.

The formula of the length is given by the formula,

[tex]L=\dfrac vf[/tex]

where v is the velocity of the substance and f is the frequency.

Given that the speed of the sound in air is 343 m/sec, while the frequency is tanging from 25Hz to 19 kHz.

Therefore, the length of the pipe will be,

[tex]L=\dfrac vf\\\\L_1=\dfrac{343}{25} = 13.72\rm\ m[/tex]

[tex]L_2=\dfrac{343}{19 \times 1000} = 0.018\rm\ m[/tex]

Hence, the length of the shortest pipe is 0.018 m.

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Pure substances can be made of atoms that are attracted to each other or atoms that are not attracted to each other. Which type of pure substance can create elaborate structures? (1 point)

Atoms that are attracted to each other because the bonds that form between them can support the creation of the structure.

Atoms that are attracted to each other because they will mix together to form a mixture with a different structure.

Atoms that are not attracted to each other because they will form bonds with each other and create a larger structure.

Atoms that are not attracted to each other because they will stay still and end up laying on top of each other. ​

Answers

Answer: atoms that are attracted to each other because the bonds that form between them can support the creation of the structure

Explanation:

Differentiate between transverse wave and longitudinal wave​

Answers

Explanation:

Transverse wave

The wave in which the particles of the medium vibrate up and down perpendicularly to the direction of the wave is called transverse wave...It consists of crests and troughs...It can be produced only in solids and surface of liquids...

Longitudinal wave

The wave in which the particles of the medium vibrate to-and-fro in the direction of the wave is called longitudinal wave..It consists of compressions and refractions...It can be produced in solid , liquid and gas...

After a student shoves a book across a flat table, it begins to slow down. Why?

Answers

Answer:

The force of friction opposes the motion of an object, causing moving objects to lose energy and slow down. When objects move through a fluid, such as air or water, the fluid exerts a frictional force on the moving object. The frictional force from a fluid is called a drag force.

The potential difference across the terminals of a battery is 8. 4v when there is a current of 1. 50 a in the ba

Answers

Answer:

The potential difference across the terminals of a battery is 8. 4v when there is a current of 1. 50 a in the ba

Explanation:

The potential difference across the terminals of a battery is `8.4 V` when there is a current of `1.50 A` in the battery from the negative to the positive terminal. When the current is `3.50 Air`, the reverse direction, the potential difference becomes `9.4 V`. <br>(a) What is the internal resistance of the battery? <br>(b) What is the emf of the battery?

Find the number of permutations when 7 objects are taken 1 at a time

Answers

Using the formula for  permutation, there are 5040 ways that  7 objects are taken 1 at a time.

What is permutation?

The permutation of objects refers to the number of ways that an object can be selected from a number of objects.

Given that;

nPr = n!/(n - r)!

Hence;

7P1 = 7!/(7 - 1)!

7P1 = 7 * 6 !/6!

7P1 = 7 * 6 * 5 * 4 * 3 * 2 *1

7P1 = 5040

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If a star is 720 , 000 , 000 , 000 , 000 meters from Earth, how many seconds does it take light to travel from the Earth to the star

Answers

Answer:

anywhere between 100000 to about 400000 human years .

Explanation:

Convert 95°F into degree centigrade.​

Answers

35

Explanation:

95 =9/5*x +32

63=9/5x

9x=63*5

x=35

When does sound become damaging to the human ear?

Answers

when someone yells in it

Blue, green, and red are _______ colors of light.

Answers

Answer:

the answer is white they combine to give white

Answer:

they are primary colors of light.

(pls don't delete this answer because I am just trying to help)


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[tex] \text{What is ideal-gas equation?}[/tex]

Answers

Answer:

PV = nRT

Explanation:

The Ideal Gas Equation shows the relation between 4 factors :-

Pressure Volume moles Temperature

⇒ R is the molar gas constant included so they are equal to each other, without it, they would just be proportional

The equation :-

⇒ PV = nRT

What is current of 12 ohm? help me pleasee​

Answers

1 Ampere

Explanation:

1/R = 1/8 + 1/10 + 1/12
1/R = (30 + 24 + 20) / 240
1/R = 74 / 240
R = 240 / 37
R = 120/37 Ohms
We know that,
V = IR
I = V/R
I = 12 / (120/37)
I = 12 × 37/120
I = 37/10
I = 3.7 A
Now,
The current in 12 ohm resistor →
= 1 A
∴ The current in 12 ohm resistor is​ 1 ampere

What two forces propel the acceleration of change in human societies today?

Answers

Answer:

Collective behavior and social movements

Explanation:

Social movements are a collective behavior but are organized efforts and goal driven. It can range from local to national and can even reach globally. Groups that are behind social movements usually want to either create or resist social, political, economic, or cultural change.

The use of fossil fuels such as coal, oil, natural gas, and technical advancements in the contemporary age is driving the acceleration of change in human cultures today.

What are fossil fuels?

Fossil fuels are obtained beneath the earth's crust, which is formed due to buried plants and animals. The excessive heat under the earth crust heats the plants and animals.

The use of fossil fuels such as coal, oil, natural gas, and technical advancements in the contemporary age is driving the acceleration of change in human cultures today.

Hence, the use of fossil fuels such as coal, oil, and natural gas, and technical advancements are two forces that propel the acceleration of change in human societies today

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Knowing the direction of heat flow, explain why if you leave a hot bowl of soup out in the open on the countertop, it eventually gets cold. Where is the heat going?

Answers

The heat will flow towards the air surrounding the soup bowl and towards the countertop below the bowl.

Where does the heat go?

We know that when two bodies of different temperatures there will be a flow of heat between the objects, from the hotter one to the colder one.

In this case, we have the bowl of soup as the hot object, and the ambient (the countertop, the air surrounding the bowl, etc) itself will be the cooler object.

Then the heat will flow towards the air surrounding the soup bowl and towards the countertop below the bowl.

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Is an electron cloud bigger than an atom?

Answers

Answer:

no

Explanation:

An electron is one of the components of an atom, so it cannot be larger than that.

Answer:

No, it's not.

Explanation:

The tightly packed nucleus is 100,000 times smaller than the electron cloud.

When a dielectric slab is inserted between the plates of one of the two identical capacitors

Answers

Answer:(A-P,S;B-P,S;C-Q,S;D-P,S)

Solution

(A)→P,S,(B)→P,S,(C)→Q,S,(D)→P,S.

Explanation:

What do you think about Turkey??​

Answers

very good very nice lolllllllllllllllll

Scientists have organized all forms of energy into two types—kinetic and potential. Kinetic energy is the energy of motion, and potential energy is stored energy.

Raise the pendulum again. Carefully watch the Energy Graph on the left. It shows the amount of energy the pendulum has as it moves.

At the top of its swing, does the pendulum have kinetic energy or potential energy?
PLEASE HELP!

Answers

Answer:

Potential energy only

Explanation:

at the top of its swing the pendulum stops moving , (therefore it has no KINETIC energy)  thus all of the energy is stored as potential energy.

Is it possible For dogs to be gray

Answers

Answer:

Yes, it is possible for dogs to be grey

Explanation:

Whippets are gray and they are a type of dog

Answer: Like humans, dogs tend to go gray as part of their natural aging process.

Explanation: Just like us, humans, dogs tend to go gray as part of their natural aging process. And just like us, as dogs get older, the pigment cells responsible for color (specifically, melanin) stop being produced; this causes the strands to come out at a lighter shade, like gray or white.

                            Hopes this helps you out!

                                 Have a nice week!

Two people are having a race pushing equal sized boxes up a hill. joe pushes the box up the hill in 10 seconds and cindy pushes the box up the hill in 5 seconds. who is applying more pressure on the side of the box?

Answers

The person applying a greater pressure to the box is Cindy since it takes her a lesser  time to move the box up the hill.

What is pressure?

The term pressure is defined as the force per unit area. WWe know that the magnitude of force applied is shown by the time taken to push the box up the hill.

Since Cindy pushes the box up the hill in only five seconds, it means that Cindy is applying a greater pressure to the box.

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Jessie hits a foul ball
straight up in the air
during a softball game.
Assuming all energy is
conserved, at what height
did the 3 kg ball travel if it
had a velocity of 11 m/s?

Answers

Answer:

GPE=(3*11^2)/2

(3*121)/2

363/2

GPE=181.5J

Explanation:

A student makes this statement before conducting an experiment on electromagnetic radiation: "We expect the laser to diffract when passed through a slit." Which of the following explains why the student's statement is not a claim?


(1 point)

It is a prediction or hypothesis.


It cannot be verified experimentally.


It is part of the evidence to support a claim.


It is a description of the experimental results.

Answers

Answer:

it is a prediction or hypothesis4

How much force does the astronaut exert on his chair while accelerating straight up at 10.0 m/s2m/s2

Answers

Answer:

M a = Fc -M g

Use up as positive - a is the acceleration upwards

Fc = M (a + g)       force exerted by chair

Fc = 19.8 M m/s^2      where M is the mass of the astronaut

The force exerted by the astronaut accelerating straight up with an acceleration of 10 m/s² is m/5 Newton.

What is force?

If you want to accelerate a body of mass 'm' with acceleration 'a' than a force of magnitude given by the product of mass and acceleration is needed.

Given is an astronaut accelerating straight up with an acceleration of 10 m/s².

Since the astronaut is moving in upward direction, the resultant resultant force is in upward direction. Now, assume that the force exerted by the astronaut on the chair is F[A].  The normal reaction force on the astronaut will also be same. Mathematically -

F[N] = F[A]

Now, we can write the resultant normal reaction force as -

ma - mg = F[N]

F[N] = m(a - g)

F[N] = m(10 - 9.8)

F[N] = m(0.2)

F[N] = m/5

F[A] = F[N] = m/5

where m is the mass of astronaut.

Therefore, the force exerted by the astronaut accelerating straight up with an acceleration of 10 m/s² is m/5 Newton.

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what are various paradox related to time travel?​

Answers

Answer:

This is a paradox — an inconsistency that often leads people to think that time travel cannot occur in our universe." A variation is known as the "grandfather paradox" — in which a time traveler kills their own grandfather, in the process preventing the time traveler's birth

Explanation:

hope this Wil help ....

A room with translucent windows that include some colored parts. use the drop-down menus the complete the statements about the image. the windowpanes are . the colors of the panes are due to the wavelengths of light that the glass .

Answers

(a)The window panes are transparent  

(b)The colors of the panes are due to the wavelengths of light that the glass allows to pass through.

What are trasparent glasses?

The glasses which allows the light rays to pass through them are called as the transparent glasses.

or visible light is electromagnetic radiation within the portion of the electromagnetic spectrum that is perceived by the human eye.[1] Visible light is usually defined as having wavelengths in the range of 400–700 nanometres (nm),

corresponding to frequencies of 750-420 terahertz, between the infrared (with longer wavelengths) and the ultraviolet (with shorter wavelengths

Hence  the  window panes are transparent the colors of the panes are due to the wavelengths of light that the glass allows to pass through.

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Answer:

The windowpanes are- transparent.

The color of the panes are due to the wavelengths of light that the glass- allows to pass through

Explanation:

Which best describes an action related to interdependence?
A. limiting the amount of fish harvested to ensure future availability
B. finding methods for extracting oil with minimal damage to the environment
C. using calculations to ensure that lumber is used efficiently
D. predicting the profits from selling metal that is extracted from ore

Answers

[tex]\small\color{blue}{⊱─━━━━━━━━━⊱༻●༺⊰━━━━━━━━━─⊰}[/tex]

Which best describes an action related to interdependence?

A. limiting the amount of fish harvested to ensure future availability

B. finding methods for extracting oil with minimal damage to the environment

C. using calculations to ensure that lumber is used efficiently

D. predicting the profits from selling metal that is extracted from ore

[tex]\small\color{blue}{⊱─━━━━━━━━━⊱༻●༺⊰━━━━━━━━━─⊰}[/tex]

The living things in an ecosystem are interdependent. This means that living things depend on their interactions with each other and also nonliving things for survival. For example, a tree depends on sunlight for energy and food.

[tex]\small\color{blue}{⊱─━━━━━━━━━⊱༻●༺⊰━━━━━━━━━─⊰}[/tex]

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true or false
As the moon orbits Earth, the absolute positions of the moon,
Earth, and the sun change

Answers

Answer:

FALSE

Explanation:

as the moon orbits earth, the ABSOLUTE position of the moon, earth, and the sun change. the moons orbit around earth is ABSOLUTELY STRAIGHT with respect to earths orbit around the sun. the amount of the moon's surface that is lit by the sun changes.
The following statement is False

Why do comets only have tails when they are near the sun?.

Answers

When far from the sun, a comet is like a stone rolling around the universe. But when it approaches the sun, the heat evaporates the comet's gases, causing it to emit dust and micro particles, electrons and ions.
Other Questions
1.1 Based on this excerpt from her novel, Mary Shelley seems to express the viewthat science -A is capable of producing miraculous resultsB offers solutions to the limitations of human mortalityChas the potential to be used for misguided intentionsD advances more quickly than our ability to understand it 288 feet75.36 feet37.68 feet24 feet HELP ASAP Mr. Rodriguez asked 60 randomly chosen students from each grade level at Willowbrook School about their favorite types of reading materials. Of those 60 students, 12 chose science fiction. Mr. Rodriguez used the data to draw the inference that about 20% of middle school students prefer to read science fiction. If 150 students attend the school, did he make a reasonable inference? Explain Which of these would be considered a natural resource? A) coal B) computers C) furniture D) pizza what would happen if you put vegetable oil and ice cubes into a beaker together? what would happen if you left it on the counter overnight? What is one common characteristic of legends?They take place in modern times.They contain exaggerated facts.They take place in a different universe.They explain how to do or make something. help please!!4Which of the following sentences quotes this passage correctly?A. James states. Plough snails) eat dead fish and other dead animals that wash up on the beach" (20).B. James explains. The snails stick into dead animals tubes that are like straws (20). C James informs Plough snails eat so much in one meal that one feeding keeps them going for twoweeks (20)OD. James writes. Plough snails] can detect even the tiniest amount of dead animal particles in the water(20)ResetSmit Determine whether each of these sets is countable or un- countable. For those that are countably infinite, exhibit a one-to-one correspondence between the set of positive integers and that set. a. integers not divisible by 3 b. integers divisible by 5 but not by 7 c. the real numbers with decimal representations con- sisting of all 1s d. the real numbers with decimal representations of all 1s or 9s Which of the following shows the correct solution steps and solution to 7x- 4 = -182 7x - 4 = -18 71 - 4+4= -18 + 4 72 = -14 A. 72 -14 7 7 = -2 70 4= -18 72 - 4+4= -18 + 4 70 = -14 7x - 14 -7 -7 B. = 2 Explain how the number of chromosomes per cell is cut in half during meiosis in which the diploid parent cell produces haploid daughter cells.please help short answer, please 50 points please don't copy my life depends on this What is the pattern; 1=4 2=4 3=64 4= ? the sum of a minutes and b seconds, expressed in minutes, is: What causes Jonna to rake leaves?A. She wants her parents to let her go to the movies.B. Her dad makes her do chores on Saturdays.C. She needs money to buy the bike she wants.D. Her dad wants her to help the family make money. Based on the ksp experiment describe a way to soften water by removing calcium ions A library had 6422 music CDs stored on 26 shelves.If the same number of CDs were stored on each shelf how many CDs were stored on each shelf Liana Amiri (single with no dependents) has the following transactions in 2021: AGI (exclusive of capital gains and losses) $540,000 Long-term capital gain 22,000 Long-term capital loss (8,000) Short-term capital gain 19,000 Short-term capital loss (23,000) Question Content Area a. What is Liana's net capital gain or loss What is the effect of the repetition on the word we throughout the poem? Recuerda lo aprendido en la leccin. Empareja la palabra con el ejemplo.Remember what you learned in the lesson. Match the vocabulary word with the example.Match Term DefinitionYo soy un hombre sincero de donde crece la palma. A) la rimala frase > B) la alusin> C) el papelel personaje de reina africana D) el simbolismo A child pushes a toy truck up an inclined plane. The lifting force is...Select one:a. the weight of the truck.b. the length of the inclined plane.c. the force the child uses to push the truck.d. equal to the total amount of work done. Which of the following rates is the best deal on a box of cereal?options:$3.20 for 20 ounces$4.50 for 25 ounces $5 for 40 ounces$6.50 for 20 ounces