A drawing.Short description, A drawing.,Long description,
The drawing shows a wave of water moving to the right in a container. As the wave moves, the distance between the peak and trough of the wave gets shorter, but the distance between the peaks of the waves remains the same.
Question
What does the drawing show about the energy of the wave as it moves?
Answer options with 4 options
A.
The energy of the wave increases as shown by the increasing frequency.
B.
The energy of the wave decreases as shown by the decreasing amplitude.
C.
The energy of the wave remains the same as shown by the same wavelength.
D.
The energy of the wave regularly increases and decreases as shown by the peaks and troughs.

the picture is this:

Answer:

Explanation:

the last one I read it

Answer:

d

Explanation:

Answer:

[tex]28.75\ \text{mL}[/tex]

Explanation:

[tex]C_1[/tex] = Initial concentration = 2 M

[tex]C_2[/tex] = Final concentration = 0.23 M

[tex]V_1[/tex] = Initial volume

[tex]V_2[/tex] = Final volume = 250 mL

We have the relation

[tex]C_1V_1=C_2V_2\\\Rightarrow V_1=\dfrac{C_2V_2}{C_1}\\\Rightarrow V_1=\dfrac{0.23\times 250}{2}\\\Rightarrow V_1=28.75\ \text{mL}[/tex]

So, the required volume is [tex]28.75\ \text{mL}[/tex].

Explanation:

First, you need to be sure the elemental analysis has identified all the components.

83.7+16.3=100% so we’re good, and the same ratio works for the formula,

The formula is CxHy, so x*12+y*1= 100% of the empirical formula wt, which we’ll use later to confirm the elemental analysis. We need x and y

Then x = 83.7/12 is 6.975 and being savvy, we guess it’s supposed to be 7, since empirical formulas use whole numbers if they can. Likewise y=16.3/1 = 16.3, and now we round down to the nearest whole number (16), making our empirical formula C7H16

Check:

7*12+16*1=100 (the empirical formula wt) 84/100=0.84 and 16/100=0.16 This is close enough, so C7H16 is the empirical formula.

Answer:

I think it might be 2 miles per hour

Answer: freezing point of water 273.15K, boiling point of water 373.15 K

Explanation:

The Kelvin scale starts at the lowest possible temperature, absolute zero. This is 0 Kelvins (K)= -273.15 deg C. Hence water freezes at 0 deg C = 273.15 K and boils at 100 deg C = 373.15 K

Answer:

Answer is explained in the explanation section below.

Explanation:

Note: This question is not complete and lacks necessary data to solve. However, I have found a similar question and I will be using its data to solve this question for the sake of understanding and concept.

Solution:

Equilibrium Reaction:

CaO(s) + H2O(g) -->Ca(OH)2(s)    

We need to find the reaction quotient for this question:

Q = [tex]\frac{1}{P_{H20} }[/tex]

Here, only the pressure of the gaseous reactant will be used and here H20 is the only reactant which is gaseous.

And we are given that, vapor pressure of water is = 0.106 mmHg

So,

Now, we need to convert it into atm

so, 1atm = 760 mmHg

0.106 mmHg = 0.106/760 atm

0.106 mmHg = 1.394 x [tex]10^{-4}[/tex] atm

Plugging in the values in the equation, we get:

Q = [tex]\frac{1}{P_{H20} }[/tex]

Q = [tex]\frac{1}{1.394 . 10^{-4} }[/tex]

Q = 7173.60 [tex]atm^{-1}[/tex]

Answer: The mass of the ethanol is 322.6 pounds

Explanation:

Density is defined as the mass contained per unit volume.

[tex]Density=\frac{mass}{Volume}[/tex]

Given : Mass of ethanol = ?

Density of ethanol= [tex]0.789g/ml[/tex]

Volume of ethanol = 49.0 gal = 185485 ml    ( 1gal=3785ml)

Putting in the values we get:

[tex]0.789g/cm^3=\frac{xg}{185485ml}[/tex]

[tex]x=146347g=322.6pound[/tex]         (1g=0.00220462pound)

Thus the mass of the ethanol is 322.6 pounds

Answer:

Potassium

Explanation:

From the given riddle. Potassium is the right answer. This because on the periodic table, potassium has the smallest atomic number of any element in its period with the electronic configuration 1s2 2s2 2p6 3s2 3p6 4s1, it has the largest atomic radius within its group because the radius has no d-electron shell filled. Potassium is a soft metal but contains high reactivity.

Answer:

Moore's Law refers to Moore's perception that the number of transistors on a microchip doubles every two years, though the cost of computers is halved. Moore's Law states that we can expect the speed and capability of our computers to increase every couple of years, and we will pay less for them.

Answer:

See explanation

Explanation:

Polymerization refers to the formation of a macro-molecule by the aggregation of small molecules called monomers. Monomers are the small molecules that are joined together to form a polymer.

The formation of a condensation polymer is accompanied by the loss of a small molecules such as water as shown in the image attached.

Succinic acid reacts with ethylenediamine to form a nylon type polymer. The nature of this reaction is detailed in the image attached to this answer. Recall that a polymer may contain (n) number of monomers joined together in the macromolecule.

Answer:

140 K

Explanation:

Step 1: Given data

Step 2: Calculate the final temperature of the gas

We have a gas whose pressure is reduced. If we assume an ideal behavior, we can calculate the final temperature of the gas using Gay-Lussac's law.

T₁/P₁ = T₂/P₂

T₂ = T₁ × P₂/P₁

T₂ = 280 K × 1.5 atm/3 atm = 140 K

The reference point in this scenario is the starting position of the toy car​.

A reference point is can be defined as the frame of reference or point mark from the various of measurement of the car's motion is determined.

When an object starts its motion from zero origin, its reference is point will be the zero origin.

Generally, the reference point of an object in motion is usually the starting position of the object.

Thus, the reference point in this scenario is the starting position of the toy car​.

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Isotonic solutions restore fluid volume because they fill the tissues and maintain fluid volume more effectively than hypertonic or hypotonic solutions.

Cells are the basic unit of life.

If a cell is placed in an isotonic solution, there will be no net flow of water into or out of the cell, and the cell's volume will remain stable.

If the solute concentration outside the cell is the same as inside the cell, and the solutes cannot cross the membrane, then that solution is isotonic to the cell.

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Answer:

Cell cycle.

Explanation:

A cell can be defined as the fundamental or basic functional, structural and smallest unit of life for all living organisms. Some living organisms are unicellular while others are multicellular in nature.

A unicellular organism refers to a living organism that possess a single-cell while a multicellular organism has many (multiple) cells.

Generally, cells have the ability to independently replicate themselves. These cells can be compared to the kind of structures found in a business or factory, where you have different workers performing different functions.

In a cell, the "workers" that perform various functions or tasks for the survival of the living organism are referred to as organelles and they include nucleus, cytoplasm, cell membrane, golgi apparatus, mitochondria, lysosomes, ribosomes, chromosomes, endoplasmic reticulum, vesicles, etc.

The regular sequence of growth and division that cells undergo is called the cell cycle. This cycle makes it possible for the cells found in living organisms to divide and produce new cells.

Basically, there are four (4) phases of the cell cycle and these are;

I. Prophase.

II. Metaphase.

III. Anaphase.

IV. Telophase.

Answer:

B

Explanation:

Meiosis ensures that the sperm and egg contain only 50-50.10% of the chromosomes of an organism.

Answer:

A, Hail is large spheres of ice and snow is small flakes of ice.

Flask 1, 2, and 3 will basically perform cellular respiration. The correct option is A.

A sequence of chemical processes known as cellular respiration convert glucose into ATP, which can then be used as energy for a variety of bodily functions.

Glycolysis, the citric acid cycle, and oxidative phosphorylation are the three basic processes that take place during cellular respiration.

During photosynthesis, it is the conversion of ADP to ATP utilizing solar energy. In the mitochondria of a cell, the process of cellular respiration also results in the formation of ATP.

This can be done through either anaerobic or aerobic respiration, depending on whether oxygen is present.

Cellular respiration can be done in plant as well as animal cells. So, in flask 1, 2, and 3, it will take place.

Thus, the correct option is A.

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Your question seems incomplete, the missing image is:

Answer:

D earth formed 4.5 billion years ago.

Answer:

3.01 × 10^24 particles

Explanation:

According to Avagadro, in one mole of a substance, there are 6.02 × 10^23 atoms or particles.

Using the formula: N = n × NA

Where;

N= number of particles or atoms

n = number of moles

NA = Avagadro's constant or number

This means that for 5 moles of a substance, there will be:

5 × 6.02 × 10^23

= 30.1 × 10^23

= 3.01 × 10^24 particles

Answer:

18m/s

Explanation:

Given parameters;

Initial velocity  = 10m/s

Acceleration  = 2m/s²

Time = 4s

Unknown:

Car's new velocity  = ?

Solution:

We use one of the kinematics equation to solve this problem:

          v  = u + at

v  = new velocity

u = initial velocity

a = acceleration

t = time

      v = 10 + (2 x 4)  = 18m/s

Answer:

Its because once you go black, there's no going back

Explanation:

Answer:

221g is the mass of the bar of aluminum

Explanation:

The volume of a bar of aluminum is obtained as:

Length*Width*height = Volume

That means the volume of the bar is:

2.03cm * 3.0056cm * 13.4cm = 81.8cm³

Now, the density of 2.70g/cm³ means the aluminum weighs 2.70g per cm³. The mass of 81.8cm³ is:

81.8cm³ * (2.70g / 1cm³) =

Answer:

They are both in the nucleus of an atom, they have different charges

Explanation:

Protons and neutrons are similar because they are both in the nucleus of the atom, being orbited by the electron(s). They are different, however, because they have different charges, the proton is positively charged and the neutron is neutral.

hope this helped:)

When a solid turns into a liquid

Example: Ice cube melts into water

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