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alexandr402 [8]
3 years ago
15

If the above two waveforms were sound waves, we would hear the ___________ wave louder. If the above two waveforms were light wa

ves, we would see the ________ wave dimmer.
A) red, red
B) green, red
C) red, green
D) green, green

Chemistry
2 answers:
nalin [4]3 years ago
8 0

Answer:

B) green, red

Explanation:

larisa86 [58]3 years ago
5 0

B) green, red

Explanation:

If the above two wave-forms were sound waves, we would hear the green wave louder.

If the above two wave-forms were light waves, we would see the red wave dimmer.

What determines the loudness of a sound wave?

A sound wave is a disturbance that transmits sound energy from one point to another in a series of rarefaction and compression.

The amplitude of a sound wave determines the loudness of sound.

Amplitude is the vertical displacement a wave undergoes from its rest point. We can see that the green wave-form has a large vertical displacement. This implies a louder sound would be hear.

When the amplitude of sound increases, it is heard more loudly because it is propagated with more intensity. This is why green wave is louder.

Why would red be dimmer?

Still using the same analogy as sound, a light wave is an electromagnetic wave or radiation. Light is a part of the electromagnetic spectrum which photoreceptors in the eye are highly sensitive to.

The more energetic the burst of light waves, the more brighter it is is picked by the receptors in the eye.

Bright light has more energy and photons in it.

The energy carried by light is proportional to the square of its amplitude. The more energy a light carries, the more photons it will have. This makes it have more brightness.

The red wave-form has a lower amplitude and will be dimmer to the eye.

learn more:

light waves brainly.com/question/8032392

Sound waves brainly.com/question/2845448

#learnwithBrainly

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lakkis [162]

Answer:

When the surface water is warm, the storm sucks up heat energy from the water, just like a straw sucks up a liquid. This creates moisture in the air. If wind conditions are right, the storm becomes a hurricane. This heat energy is the fuel for the storm.

Explanation:

I hope this can help you!

4 0
3 years ago
Which of the following is not a symbol of an element?<br><br> a. Na<br> b. CO<br> c. S<br> d. He
kvv77 [185]
CO is not an element because CO is a Compound. Elements contain One capital and one lowercase letter. While Compounds contain two or more capital letters.
5 0
3 years ago
You need to make 10.0 L of 1.2 M KNO3. What molar ( concentration) would the potassium nitrate solution need to be if you were t
solniwko [45]

Answer:

2.5L [NaCl] concentrate needs to be 4.8 Molar solution before dilution to prep 10L of 1.2M KNO₃ solution.

Explanation:

Generally, moles of solute in solution before dilution must equal moles of solute after dilution.

By definition Molarity = moles solute/volume of solution in Liters

=> moles solute = Molarity x Volume (L)

Apply moles before dilution = moles after dilution ...

=> (Molarity X Volume)before dilution = (Molarity X Volume)after dilution

=> (M)(2.5L)before = (1.2M)(10.0L)after

=> Molarity of 2.5L concentrate = (1.2M)(10.0L)/(2.5L) = 4.8 Molar concentrate

6 0
3 years ago
A sample of a compound is decomposed in the laboratory and produces 330 g carbon, 69.5 g hydrogen, and 220.2 g oxygen. Calculate
Zarrin [17]

Answer: Empirical formula is C_2H_5O

Explanation: We are given the masses of elements present in a sample of compound. To evaluate empirical formula, we will be following some steps.

<u>Step 1 :</u> Converting each of the given masses into their moles by dividing them by Molar masses.

Moles=\frac{\text{Given mass}}{\text{Molar mass}}

Molar mass of Carbon = 12.0 g/mol

Molar mass of Hydrogen = 1.0 g/mol

Molar mass of Oxygen = 16.0 g/mol

Moles of Carbon = \frac{330g}{12g/mol}=27.5moles

Moles of Hydrogen = \frac{69.5g}{1g/mol}=69.5moles

Moles of Oxygen = \frac{220.2g}{16g/mol}=13.76moles

<u>Step 2: </u>Dividing each mole value by the smallest number of moles calculated above and rounding it off to the nearest whole number value

Smallest number of moles = 13.76 moles

\text{Mole ratio of Carbon}=\frac{27.5moles}{13.76moles}=1.99\approx 2

\text{Mole ratio of Hydrogen}=\frac{69.5moles}{13.76moles}=5.05\approx 5

\text{Mole ratio of Oxygen}=\frac{13.76moles}{13.76moles}=1

<u>Step 3:</u> Now, the moles ratio of the elements are represented by the subscripts in the empirical formula

Empirical formula becomes = C_2H_5O

7 0
3 years ago
Describe one way to prove that a mixture of sugar and water is a solution and that a mixture of sand and water is not a solution
Llana [10]

Answer:

The solution is always homogeneous mixture and transparent through which the light can travel. The mixture of water and sugar is a solution because sugar is soluble in water and form homogeneous mixture while the sand can not dissolve in water and sand particles scatter the light.

Explanation:

Solution:

"The solution is always homogeneous mixture and transparent through which the light can travel"

The mixture of water and sugar is a solution because sugar is soluble in water and form homogeneous mixture. The solubility of sugar is high as compared to the sand in water because the negative and positive ends of sucrose easily dissolve into the polar solvent i.e, water

Suspension:

"Suspension is the heterogeneous mixture, in which the solute particles settle down but does not dissolve"

The mixture of water and sand is suspension. The sand can not dissolve in water because it is mostly consist of quartz. The nonpolar covalent bonds of  sand are too strong and cannot be break by water molecules.

7 0
3 years ago
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