The energy recommendation that describes the proportions of calories that should come from carbohydrate, fat, and protein are the: ______.
a. ears
b. ais
c. amdrs
d. dris

Answer: a. 8.76*10^3 meters

b. 4.35*10^8 meters

c. 1.55*10^(-3) meters

d. 9.01*10^(-3) meters

e. 1.78*10^5 meters

f. 6.30*10^2 meters

Explanation:

a. 8758.073 meters=

8000+758.073=

8*1000+758.073/1000 *1000=

8*10^3+0.758073*10^3=

(8+0.758073)*10^3=

8.758073*10^3=

8.758073*10^3=8.76*10^3 meters

b. 435,200,000=

400,000,000+35,200,000=

4*100,000,000+35,200,000/100,000,000 *100,000,000=

4*10^8+0.352*10^8=

4.352*10^8=

4.352*10^8=4.35*10^8 meters

c. 0.001552 meter=

1.552/1000 =

1.552 * 1/1000=1.55*10^(-3) meters

d. 0.009009 meters=

9.009/1000=

9.009*10^(-3)=9.01*10^(-3) meters

e. 177,888 meters=

100,000+77,888=

1*100,000+77,888/100,000 *100,000=

1*10^5+0.77888*10^5=

1.77888*10^5=1.78*10^5 meters

f. 629.55 meters=

6000+29.55=

6*100+29.55/100 *100=

6*10^2+0.2955*10^2=

6.2955*10^2=6.30*10^2 meters

In secondary structure of a protein, other than peptide bonds, hydrogen bond are formed.

The secondary structure contains regions of amino acid chains that are stabilized by hydrogen bonds from the polypeptide backbone. arrangement of hydrogen bonds between the peptide it is an arrangement nitrogen's and the peptide carbonyl oxygens of different amino acid residues. the most common types of secondary structures are the α helix and the β pleated sheet. both structures are held in shape by hydrogen bonds, which form between the carbonyl O of one amino acid and the amino H of another.

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The cellular component responsible for energy production and metabolic processes is mitochondria.

What is Mitochondria?

A double-membrane-bound organelle known as a mitochondrion is found in the majority of eukaryotic organisms. The majority of the cell's adenosine triphosphate, which is then used as a source of chemical energy throughout the cell, is produced by mitochondria using aerobic respiration.

Oxidative phosphorylation, which produces ATP using the energy released during the oxidation of the food we eat, is the traditional function of mitochondria. For the majority of biochemical and physiological processes, including growth, mobility, and equilibrium, ATP is used as the main energy source in turn.

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At a ph of 7.25 , the ratio of protonated glu molecules to deprotonated glutamate molecules is 1.100.

To find the ration of protonated glu molecules to deprotonated glutamate molecules we can used Henderson - hasselbalch equation :

ph = pka  +  log[A- ] / [HA]                                                  

At a ph value below the pka for each funtional group of amino acid , the functional group is protonated and the ph value above pka for the functional grroup its deprotonated.

Carboxylic acid funtional group of glutamic acid (glu) has pka = 4.25. so, the negatively charged deprotonated carboxylate form greater values of ph.

Hence , At a ph of 7.25, the ratio of protonated glum molecules to deprotonated glumtamate molecules is 1.100.

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Answer:

[tex]0.12g/cm^3[/tex]

Explanation:

Firstly, you should use this formula :

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

We know the mass is 16.14g, and volume as [tex]138.4ml[/tex].

Also remember to convert [tex]ml[/tex] to [tex]cm^3[/tex], where [tex]1ml = 1cm^3[/tex]

Therefore, [tex]138.4ml=138.4cm^3[/tex].

Substitute the value :

[tex]\frac{16.14g}{138.4cm^3}=0.1166g/cm^3[/tex]

Rounding it to 2 significant figure :

[tex]0.12g/cm^3[/tex]

Chemical bonds that join the amino acids together to form polypeptide chains are peptide bonds. Chemical bonds are formed when two or more atoms, molecules, or ions come together to form a compound. Atoms in the resultant molecule are held together by these chemical bonds.

Bonds can be classified as ionic, covalent, or metallic in general. When a valence electron transfers from one atom to another to finish the outer electron shell chains, an ionic bond is created. Ionic bonds, covalent bonds, hydrogen bonds, and van der Waals interactions are the four categories of chemical bonds that are necessary for life.

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Sodium and chlorine are the two reactants and sodium chloride is the product.

Therefore, sodium and chlorine are reactants whereas sodium chloride is the product.

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The small stretches on a chromosome  of a deoxyribonucleic acid (DNA) molecule on a particular site is known as gene.

Gene is a fundamental, structural and operational component of heredity in living beings. They serve as a blueprints for synthesis of proteins. Genes are responsible for transfer of traits from parents to the progeny.

The sequence of nucleotide on a DNA strand determines the coding for various proteins. From a few hundred DNA bases to more than 2 million bases, genes range in size. Every human contains two copies of same gene, one from each parent.

Protein-coding genes make up only around 1% of DNA; the remaining 99% is non-coding genes. There are no protein-making instructions in non-coding part of DNA.

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The reactant that will be the best reactant for a nucleophilic aromatic substitution is NO₂- NO₂. The correct option is b.

Nucleophilic aromatic substitution is a substitution process of nucleophile substance is substituted by halides in an aromatic ring. Aromatic compounds contain this type of substitution.

In option b, the compound is the one nitroxide group substituted by halogen, that is fluorine. The fluorine group is substituted in these given aromatic compounds.

Thus, the correct option is b, NO₂- NO₂.

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The question is incomplete. Your most probably complete question is given below:

NO₂F

NO₂- NO₂-F

CH₃-O

CH₃-O-F

Answer:

1. 104000m

2. 160mm

3. 5600000 mg

An atom is composed of a central nucleus which is surrounded by electrons.

A nucleus is the organelle within a cell that is membrane-enclosed and contains the chromosomes, according to genomics. Numerous holes in the nuclear membrane allow for the selective passage of certain molecules (such proteins and nucleic acids) into and out of the nucleus.

Protons, which have a positive charge, and neutrons, which have no electrical charge, make up the nucleus. Quarks are subatomic particles that make up protons and neutrons.

DNA is organised into chromosomes in the nucleus, which is located in the centre of the cell. The double nuclear membrane (outer and inner) that separates the nucleus from the cytoplasm, known as the nuclear envelope, envelops it. The rough endoplasmic reticulum and the outer membrane are one unit.

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The redox reaction must occur between an oxidizing agent and a reducing agent.

From your question, you want  me to give you a general idea about redox reaction and that is what I will do. Firstly, a redox reaction is one in which one specie is oxidized and the other is reduced. The both processes have to occur simultaneously.

When we say that the both processes occur simultaneously, we mean that the electron that is lost in one process is gained in another process and all these must happen within the same system not apart from each other.

The oxidation number of one specie increases while the oxidation number of the other specie decreases. Hence, an redox reaction must occur between an oxidizing agent and a reducing agent.

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Answer:

Tug of War

An object sinking in water

Kicking a ball

Answer:

turning a cartwheel.

riding a skateboard.

a football sailing toward the goalpost after it is kicked

Answer:

Therefore; the wavelength of wave is 6. 9×10−8m.

Answer:

1.26*10^16Hz

Using the planck-einsten equation, you plug in the values and you should get 1.26*10^16Hz.

There are three non-equivalent sets of hydrogens are there in each of the following compounds.

Hydrogen is the simplest element. Each hydrogen atom has only one proton. Hydrogen is also the most abundant element in the universe. Stars like the Sun are mostly made of hydrogen. The sun is essentially a giant ball of hydrogen and helium gas. Hydrogen water is pure water with extra hydrogen molecules added. Hydrogen (H2) is the most abundant molecule known to man. It is a colorless, odorless, and tasteless gas. In any case, in 2007 a Japanese group discovered that inhaled hydrogen gas could act as a cancer preventive (antioxidant) agent.

Found in the Sun and most stars, Jupiter is composed primarily of hydrogen. Hydrogen is the most abundant form of water on earth. As a gas in the atmosphere, it is present in trace amounts, less than 1 ppm by volume.

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A chemical change is one that leads to the formation of a new substance. It involves the rearrangement of the atoms in a substance to produce a new substance(s).

A physical change does not involve the rearrangement of atoms. It does not also lead to the formation of new substance. The changes are as follows;

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An atom of zirconium which has a mass number of 96 has 37 electrons in it.

Atomic number 40 and the letter Zr are used to identify the chemical element zirconium. Zircon is the name of the mineral from which zirconium gets its name. The name has a connection to the most significant source of zirconium, the Persian word zargun (zircon; zar-gun, "gold-like" or "like gold").

This transition metal closely resembles titanium and, to a lesser extent, hafnium. It is glossy, grey-white, and strong. Although it is used sparingly as an alloying agent due to its high corrosion resistance, zirconium is mostly utilised as a refractory and an opacifier.

Inorganic and organometallic compounds like zirconium dioxide and zirconocene dichloride are both formed by zirconium. There are five stable isotopes that are found in nature. The biological function of zirconium compounds is unknown.

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When we double the quantities of reactants and products in a reaction,  the value of the equilibrium constant remains the same.

K = [P]/[R]

where,

[P]  is the concentration of the product.

[R] is the concentration of reactant.

If we double the quantities of reactants and products in the final concentration it'll become

[R]2=2×[R]1 and [P]2=2×[P]1

Now at initial stage

K1 =  [P1]/[R1]

at final stage after doubling the products

K2=[P2]/[R2]

Putting the given values

K2/K1 = 2×[P1]×[R1]/2×[R1]×[P1]

K2/K1=2/2

K2/K1=1

K2=K1

So, the value of equilibrium constant remains same.

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Answer:

because when girl slide down then her body was in full speed and after that she gets up her hair is in the air because when she slide down her hair was also blowing in the air and after that her body thinks that they're still sliding down.so,it happened.

Proton a couples to proton b. proton a possesses a j-value of 3.0 Hz. the j-value proton b possesses to be 3.0hz.

A proton contains two up quarks and one down quark. A neutron contains one up quark and two down quarks. The core is held together by one of four fundamental forces, the "strong nuclear force" (gravitational and electromagnetic forces are the other two). Heavy atoms tend to have more neutrons than protons, but the number of electrons in the atom is always equal to the number of protons. Therefore, the atom as a whole is electrically neutral.

There are two types of protons and neutrons: up quarks and down quarks. Each up quark has a +2/3 charge. Each down quark has a charge of -1/3. The sum of the charges of the quarks that make up the nuclear particle determines its charge.

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The e answer in scientific notation 5.7365 x[tex]10^{-5}[/tex]/ 3.4891  x [tex]10^{-8}[/tex] is  1.64  x [tex]10^{3}[/tex] .

Calculation ,

5.7365 x [tex]10^{-5}[/tex] / 3.4891 x [tex]10^{-8}[/tex] = 1.64  x [tex]10^{3}[/tex] = 1644

Below are the five guidelines for scientific notation:

1. The base must always be 10.

2. The exponent must be an integer that is non-zero, meaning it may be positive or negative.

3. The coefficient's absolute value is more than or equal to 1, but it must be less than 10.

4. Both whole and decimal numbers, including positive and negative numbers, can be used as coefficients.

5. The remaining significant digits of the number are carried by the mantissa.

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The 0.125 of original atoms are remaining after 3 half cycles

Half life of a radioactive element is the time in which its radioactive atoms reduce to half of its original value.

It is given that we have three half lives after which number of  carbon atoms is to be found

After one half cycle, the number of carbon-14 atoms remaining will be 1/2 or 0.5

After the second half cycle , the number carbon 14 atoms remaining will be 1/2 of 1/2 which is equal to 1/4 or 0.25

After the third half cycle number of carbon-14 atoms remaining will be

1/2 of 1/4 which is 1/8 or 0.125

This can be easily found out using the formula of number of half cycles as [tex](1/2)^{n}[/tex]

where n is the number of half cycles after which number is to be found

Hence 0.125 of original atoms are remaining after 3 half cycles

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When a substance moves down its concentration gradient, and energy is used to move another substance up its concentration gradient in the same direction is antiport secondary active transport

The primary active transport establishes the Na+ or H+ gradient. So to move substances against their concentration gradient, secondary transport uses energy derived from the hydrolysis of Adenosine triphosphate (ATP).

Secondary active transport is of two types - symport and antiport. When two or more substances move in the opposite direction using energy, it is termed an antiport. In this, one substance move inside, and another substance moves out of the cell. When two or more substance move in the same direction using energy is called symport. In this, either they are moving inside or out of the cell but move in the same direction.

Therefore, when a substance moves down its concentration gradient, and energy is used to move another substance up its concentration gradient in the same direction is antiport secondary active transport.

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The corrcet answer is option D: About half of the buffer molecules are dissociated.

Buffers work best when about half of the buffer molecules are dissociated.

In chemistry, an aqueous solution that can resist change in pH when acidic or basic substances are added to it is called a buffer solution.

The main components of a buffer are a weak acid and a conjugate base and vice versa.

When an acid or a base is added to it, it cancels out its effects and makes the solution neutral.

In this way, it maintains a very stable pH of the solution under all conditions.

For a chemical reaction, buffers are really important and handy solutions.

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Answer: 27.69 mL^3

Explanation:

32.5 g * 0.852 g/mL=

32.5*0.852=27.69 mL^3       ==>Volume is expressed in units cubed.

The protons neutrons and electrons are there in a neutral atom

In a neutral atom of ⁶⁰Co (cobalt-60), there are 27 protons, 27 electrons, and 33 neutrons.

We have to find the number of protons, neutrons, and electrons in a neutral atom of ⁶⁰Co (cobalt-60).

The number of protons = The atomic number.

The atomic number of cobalt is = 27

Therefore, the protons are 27

As protons and electrons are equal. Then, the number of electrons is 27.

The number of Neutrons = Atomic number - Number of protons.

Neutrons = 60 - 27

Or, neutrons = 33

Hence, the number of neutrons is 33, electrons are 27, and protons are 27 in a neutral (cobalt-60).

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There are 3 experiments which helps to under water evaporation system.

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The ionic radius is the distance between the nucleus of the ion up to the electron cloud that overlays the ion.  

The ionic radius is the distance between the nucleus of the ion up to the electron cloud that overlays the ion.  We know that for a metal, the ionic radii  decreases as the  magnitude of charge on the ion increases  while in the case of the negative ion, the ionic radii increases as the magnitude of charge on the ion increases.

Let us now look at the ions as shown;

a)  I^->I> I^+ - This is because the negative ion leads to an expansion of the electron cloud which decreases in the atom and the positive ion.

b) Ca²+ > Mg2+ > Be²+ - Ionic radius increases down the group as more shells are added.

c)  Fe>Fe²+ > Fe³+ - This is because, for a metal, the ionic radii  decreases as the magnitude of charge on the ion increases

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