equivalence between the weak form and the strong form of 2d euler-bernoulli

Answer:

The skeletal muscle tissue is found in biceps.

=> Option B is correct

Hope this helps!

:)

There are different types of muscles namely smooth muscles, skeletal muscles, non-striated muscles etc. Biceps brachii is classified as skeletal muscles.

Skeletal muscles are controlled by the somatic nervous system and are voluntary muscles. The other types of muscle include smooth muscle, which is non-striated, and cardiac muscle, both of which are striated. These two types are both considered to be involuntary, or under the direction of the autonomic nervous system.

The biceps brachii commonly know as the biceps, is a large, thick muscle on the ventral portion of the upper arm. The muscle is composed of a short head and a long head. The long head is located on the lateral side of the biceps brachii while the short head is located on the medial side[1].

The biceps brachii works across three joints, and is able to generate movements in glenohumeral, elbow and radio-ulnar joints.

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Answer:

Step 1:

UQH2 + 2 cyt c (Fe3+) → UQ + 2 cyt c (Fe2+)

This step involves the oxidation of UQH2 and reduction of cyt c (Fe3+). The net reaction involves a 2-electron transfer from UQH2 to cyt c (Fe3+).

The standard reduction potential for UQH2 to UQ is given as 0.06 V, and for cyt c (Fe3+) to cyt c (Fe2+) it is 0.254 V.

The net standard reduction potential for step 1 can be calculated as follows:

E°_net1 = E°(UQH2) - E°(cyt c (Fe3+))

E°_net1 = 0.06 V - 0.254 V

E°_net1 = -0.194 V

Step 2:

UQH2 + 2 cyt c (Fe3+) → UQH + 2 cyt c (Fe2+)

This step also involves the oxidation of UQH2 and reduction of cyt c (Fe3+). The net reaction involves a 2-electron transfer from UQH2 to cyt c (Fe3+).

The standard reduction potential for UQH2 to UQH is given as 0.19 V.

The net standard reduction potential for step 2 can be calculated as follows:

E°_net2 = E°(UQH2) - E°(cyt c (Fe3+))

E°_net2 = 0.19 V - 0.254 V

E°_net2 = -0.064 V

Total redox potential of Complex III:

To calculate the total redox potential, we sum up the net reduction potentials of step 1 and step 2:

E°_total = E°_net1 + E°_net2

E°_total = -0.194 V + (-0.064 V)

E°_total = -0.258 V

Now, let's calculate the free energy available for proton translocation assuming a 2-electron process for each complex.

The equation relating free energy change (ΔG) and standard reduction potential (E°) is given by:

ΔG = -nFΔE°

Where:

ΔG is the free energy change

n is the number of electrons transferred

F is Faraday's constant (96,485 C/mol)

ΔE° is the standard reduction potential

For a 2-electron process, n = 2.

ΔG1 = -2 * 96,485 C/mol * (-0.194 V)

ΔG1 = 37,508.12 J/mol

ΔG2 = -2 * 96,485 C/mol * (-0.064 V)

ΔG2 = 12,303.04 J/mol

Therefore, the free energy available for proton translocation for each complex is 37,508.12 J/mol for Complex III, step 1, and 12,303.04 J/mol for Complex III, step 2.

To calculate the moles of protons translocated, we can use the equation:

ΔG = nFΔp

Where:

ΔG is the free energy change in joules

n is the number of moles of protons

F is Faraday's constant (96,485 C/mol)

Δp is the potential difference finish up now

Answer: Graphene, and Silver

Explanation:

A conductor can be defined as the object or material that allows the flow of electrical current in it.

Graphene is a lightest material and it acts as a good conductor of electricity.   The graphene electrons move faster as compared to any other material at room temperature. It allows it to conduct electricity.

Silver is a heaviest material and also exhibit highest electrical conductivity among other metals.

Answer:

solid dispersed in gas

Fog is a type of colloid in which tiny droplets of liquid, such as water, are suspended in a gas, such as air. Fog can be considered a liquid-in-gas colloid since the dispersed-phase droplets are composed of liquid, and the continuous-phase is composed of gas.

Other examples of colloids include smoke (solid particles dispersed within a gas), whipped cream (gas in a liquid), mayonnaise (liquid in a liquid), gelatin (solid in a liquid), and clouds (liquid in a gas).

Fog can be categorized according to the type of gas which is the continuous phase. For instance, water-in-air fog is the most common type, while smoke of air constitutes a solid-in-air colloid. Other types of fog include oil-in-air (liquid-in-gas colloid) and dust-in-air (solid-in-gas colloid).

Colloids form when particles of the dispersed phase are typically larger than 1 nanometer, yet small enough to remain suspended in the continuous phase due to Brownian motion or other forces. The particles remain suspended due to the attraction of the particles for each other (Induced Charge Electrophoresis) and for the carrier phase molecules.

Understanding colloids is important for a variety of applications, such as drug delivery, material engineering, food science, and wastewater treatment

Fog is an example of a colloid that has the phase of "liquid dispersed in gas."

When air becomes saturated with water vapour and condenses into minute water droplets close to the Earth's surface, fog is a natural meteorological occurrence.

Fog is a foggy mist formed when little liquid water droplets are scattered across the atmosphere.

A colloidal system is produced when liquid water droplets are suspended in the gas phase (air).

Thus, because these droplets are so tiny, they can hang suspended in the air for a long time, giving fog its distinctive appearance.

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To calculate the molality of a solution, we need to know the number of moles of solute per kilogram of solvent. Therefore, the molality of the solution is 0.506 mol/kg.

The substance that typically determines the solution's physical state is the solvent (solid, liquid or gas). The substance that dissolves in the solvent is known as a solute. For instance, in a solution of salt and water, salt serves as the solute and water as the solvent.

Here's how we can calculate the molality of the given solution:

Step 1: Calculate the number of moles of cobalt (II) nitrate

The molar mass of cobalt (II) nitrate is 194.99 g/mol. Therefore, the number of moles of cobalt (II) nitrate dissolved in 49.4 grams can be calculated as follows:

moles of Co(NO3)2 = mass ÷ molar mass

moles of Co(NO3)2 = 49.4 g ÷ 194.99 g/mol

moles of Co(NO3)2 = 0.253 moles

Step 2: Calculate the mass of water

The mass of 500 ml of water can be calculated as follows:

mass of water = volume of water × density of water

mass of water = 500 ml × 1 g/ml

mass of water = 500 g

Step 3: Calculate the molality

Now we can calculate the molality of the solution using the following formula:

molality = moles of solute ÷ mass of solvent in kilograms

mass of solvent in kilograms = mass of water ÷ 1000

molality = 0.253 moles ÷ (500 g ÷ 1000)

molality = 0.506 mol/kg

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Answer:

C. Mass extinctions

Explanation:

Mass extinctions happen because of climate change, asteroid impacts, massive volcanic eruptions or a combination of these causes. ... This event seems to be the combination of massive volcanic eruptions (the Deccan Traps) and the fall of a big meteorite.

The mass of oxygen gas produced, given that 15.8 g of potassium permanganate is heated until no more oxygen gas is given off is 1.6 g

From the question given, the following data were obtained:

The mass of oxygen gas produced from the reaction can be obtained as follow:

Mass of potassium permanganate = Mass of remaining substance + mass of oxygen

Inputting the given parameters, we have:

15.8 = 14.2 + mass of oxygen

Collect like terms,

Mass of oxygen = 15.8 - 14.2

= 1.6 g

Thus, we can conclude that the mass of oxygen gas produced from the reaction is 1.6 g

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The following signs are posted  to convey information about chemical storage:

1) Hazard signs such as "flammable", "oxidizer", "corrosive".

2) National fire protection association (NFPA) diamond.

3) Gas cylinder sign

A sign on a chemical label is meant to pass information to the user of a chemical that has been stored in a laboratory.

Each of the signs possess a unique meaning. The hazard signs such as "flammable", "oxidizer", "corrosive" shows that the chemical is dangerous.

The National Fire Protection Association (NFPA) diamond shows the extent of hazard a chemical posses.

The gas cylinder sign means that the substance is a compressed, liquefied, or dissolved gas under pressure.

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Answer:

percent yield = 80.7%

Theoretical yield of silver sulfide = 30.975 g

Actual yield  = 25 g

Explanation:

Given data:

Mass of silver = 27 g

Mass of silver sulfide formed = 25 g

Theoretical yield of silver sulfide = ?

Actual yield = ?

Percent yield = ?

Solution:

Chemical equation:

2Ag + S   →     Ag₂S

Number of moles of Ag:

Number of moles = mass/molar mass

Molar mass of silver = 107.8 g/mol

Number of moles = 27 g/ 107.8 g/mol

Number of moles = 0.25 mol

Now we will compare the moles of silver with silver sulfide.

               Ag         :       Ag₂S

               2            :         1

              0.25        :      1/2×0.25 = 0.125 mol

Theoretical yield of silver sulfide:

Mass = number of moles × molar mass

Mass = 0.125 mol ×  247.8 g/mol

Mass = 30.975 g

Actual yield is given in question = 25 g

Percent yield:

Percent yield = (actual yield / theoretical yield) × 100

Percent yield = (25 g/ 30.975 g ) × 100

percent yield = 80.7%

Answer:

Sodium fluoride (NaF) does indeed follow the octet rule without any violations.

When the gas is heated from -50°C to 28°C, the new volume is approximately 17.24 L.

To calculate the new volume of a gas when it is heated from -50°C to 28°C, we can use the combined gas law, which relates the initial and final conditions of temperature and volume.

The combined gas law is expressed as:

(P1 * V1) / T1 = (P2 * V2) / T2

Where:

P1 = Initial pressure

V1 = Initial volume

T1 = Initial temperature in Kelvin

P2 = Final pressure (assumed constant in this case)

V2 = Final volume (to be calculated)

T2 = Final temperature in Kelvin

First, we need to convert the initial and final temperatures from Celsius to Kelvin:

Initial temperature in Kelvin (T1) = -50°C + 273.15 = 223.15 K

Final temperature in Kelvin (T2) = 28°C + 273.15 = 301.15 K

Since the pressure is assumed to be constant, we can simplify the equation:

(V1 / T1) = (V2 / T2)

Now we can substitute the given values into the equation:

(12.78 L / 223.15 K) = (V2 / 301.15 K)

Cross-multiplying and solving for V2:

V2 = (12.78 L * 301.15 K) / 223.15 K

V2 ≈ 17.24 L

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(a) The reaction with Delta H = 12.6 kJ/mol and Delta S = 93 J/K·mol is spontaneous at 25°C.

(b) The reaction with Delta H = 9.5 kJ/mol and Delta S = -94.0 J/K·mol is not spontaneous at 25°C.

To determine whether a reaction is spontaneous at a given temperature, we can use the Gibbs free energy equation: Delta G = Delta H - T·Delta S, where Delta G is the change in Gibbs free energy, Delta H is the change in enthalpy, Delta S is the change in entropy, and T is the temperature in Kelvin.

For a reaction to be spontaneous, Delta G must be negative. If Delta H is negative (exothermic) and Delta S is positive (increase in disorder), the reaction is more likely to be spontaneous.

(a) For the reaction with Delta H = 12.6 kJ/mol and Delta S = 93 J/K·mol, we have Delta G = 12.6 kJ/mol - (25 + 273) K·(93 J/K·mol/1000 J/kJ) = -5.25 kJ/mol. Since Delta G is negative, the reaction is spontaneous at 25°C.

(b) For the reaction with Delta H = 9.5 kJ/mol and Delta S = -94.0 J/K·mol, we have Delta G = 9.5 kJ/mol - (25 + 273) K·(-94.0 J/K·mol/1000 J/kJ) = 3.57 kJ/mol. Since Delta G is positive, the reaction is not spontaneous at 25°C.

To determine the minimum temperature at which a non-spontaneous reaction becomes spontaneous, we can set Delta G equal to zero and solve for T in the equation Delta G = Delta H - T·Delta S. However, in this case, both reactions are either spontaneous or non-spontaneous at 25°C, so we do not need to calculate the minimum temperature.

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Answer:

Crystallization. Magma cools either underground or on the surface and hardens into an igneous rock. As the magma cools, different crystals form at different temperatures, undergoing crystallization. For example, the mineral olivine crystallizes out of magma at much higher temperatures than quartz.

Answer:

1,3-bisphosphoglycerate

Explanation:

The molecular formula of a cycloalkane with six carbon atoms, also known as cyclohexane, is C6H12.

Cycloalkanes are cyclic hydrocarbons that consist of carbon atoms arranged in a ring, with each carbon atom bonded to two other carbon atoms and two hydrogen atoms. Cycloalkanes are saturated hydrocarbons, meaning that they contain only single covalent bonds between the carbon atoms and hydrogen atoms, and have the general formula CnH2n. Cycloalkanes are relatively stable compounds and can be found in many natural products, such as steroids, and alkaloids. They are also used in various applications, such as solvents, fuels, and lubricants.

Therefore, the correct answer is B. C6H12.

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Answer:

There are 10 oxygen atoms reacting for every six oxygen atoms produced in CO2

Explanation:

Ther

Answer:

Closed-toe shoes, long pants, a lab coat, safety glasses with side shields or splash goggles, and gloves.

Explanation:

Answer:

\(\% \: error = | \frac{origina - expirimental}{original} | \times 100 \\ | \frac{78.40 - 75.70}{78.40} | \times 100 \\ = \frac{2.7}{78.4} \times 100 \\ =3.44 \\ thank \: you\)

A spontaneous reaction is one in which the change in free energy is negative and the standard cell potential is positive.

For a redox reaction to be spontaneous, the electrode potential of the cell must be positive and this depends on the relative electrode potentials of the species involved in the reaction. A metal can not displace a metal above it in the electrochemical series from solution.

Based on this;

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Answer:

This is balanced

Explanation:

Both sides contain 2 Ag 2 NO3 1 Ba and 2 Cl.

To solve this we must be knowing each and every concept related to molecule. Therefore, eight molecules of Sulphur is written as S\(_8\).

A molecule is an electrically neutral collection of two or more atoms linked together by chemical bonds. Here are several instances of molecules, as well as an explanation of the differences between particles, compounds, and ions.

An atom is indeed the element's smallest unit. A single element's atoms all have the same amount of protons. Atoms cannot be separated further using any chemical process. A molecule, on the other hand, is the basic unit of such a pure material.  Eight molecules of Sulphur is written as S\(_8\). 8s is wrong representation.

Therefore, eight molecules of Sulphur is written as S\(_8\).

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One mole of magnesium chloride has a mass of 95 g. Then the mass of 4.25 moles of magnesium chloride (MgCl₂) is 403.7 g.

Magnesium chloride is an ionic compound with the chemical formula, MgCl₂. It formed through the donation of two valence electrons from the metal magnesium to the chlorine atoms.

The mass of one mole of a compound is called its molar mass. The number of moles of the compound is then the ratio of its given mass to the molar mass.

Atomic mass of Mg = 24 g/mol

atomic mass of Cl = 35.5 g/mol

mass of 2 Cl = 71 g

Then, molar mass of MgCl₂ = 24 +  71 g = 95 g/mol

One mole of  MgCl₂ is 95 g. Then, mass of 4.25 moles of MgCl₂ is

4.95 × 95 = 403.7 g

Therefore, the mass of 4.95 moles of MgCl₂ is 403.7 g.

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The reason why changing the solutions between electrochemical cells is necessary, even if they use the same reagents, is because there may be differences in the concentrations of the reagents or impurities in the solutions that can affect the measured potential.

In the experiment where you change the solutions between electrochemical cells even if they used the same reagents, the potentials observed might become less accurate if you had not done this. This is because, over time, the concentrations of the solutions and the electrode surfaces can change due to reactions occurring at the electrodes. This can lead to alterations in the potentials and a decrease in accuracy. Therefore, it is important to change the solutions to maintain consistency and achieve accurate results.

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Answer:

212.5 mL

both the original and the diluted solution have 0.765 moles of KCl

Explanation:

c1V1 = c2V2

V2 = c1V1/c2 = (1.8 M×425 mL)/1.2 M = 637.5 mL

(637.5 - 425) mL = 212.5 mL

n = (1.8 mol/L)(0.425 L) = 0.765 moles of KCl

since it's a dilution, the diluted solution has the same number of moles as the original solution, 0.765 moles of KCl

A. Mole - The number of items in a mole

B. Molarity - Concentration of a dissolved substance

C. Molar mass - Mass of 1 mole of something

D. Avogadro's number - 6.02 × 10^23 items

A mole is a unit used in chemistry to represent a specific number of items, which is approximately 6.02 × 10^23. It is often used to count atoms, molecules, ions, or other particles.

Molarity, on the other hand, is a measure of the concentration of a dissolved substance in a solution. It is expressed as the number of moles of the solute divided by the volume of the solution in liters.

Molar mass refers to the mass of one mole of a substance. It is calculated by summing up the atomic masses of all the atoms in a molecule or formula unit. Molar mass is expressed in grams per mole.

Avogadro's number is a fundamental constant in chemistry and physics. It represents the number of items (atoms, molecules, ions, etc.) in one mole of a substance. Avogadro's number is approximately 6.02 × 10^23 items per mole.

In summary, the terms can be matched as follows:

A. Mole - The number of items in a mole,

B. Molarity - Concentration of a dissolved substance,

C. Molar mass - Mass of 1 mole of something,

D. Avogadro's number - 6.02 × 10^23 items.

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Answer:

A. The energy increases the molecular motion and the kinetic energy of the substance.

Explanation:

When a substance absorbs energy, the molecules will move faster because there will be more vibrations and collisions.

As a result of more molecular motion, the kinetic energy will increase because there is more movement.

The set of reactants that could be used to prepare CaI\(_2\) is Ca and HI. The correct answer is option c.

Calcium (Ca) reacts with Hydrogen Iodide (HI) to form Calcium Iodide (CaI\(_2\)) and hydrogen gas (H\(_2\)). The reaction can be represented as:

Ca + 2HI → CaI\(_2\) + H\(_2\)

Option (a) CaO and HI would not work because CaO is a basic oxide and would react with HI to form water instead of CaI\(_2\). Option (b) Ca(OH)\(_2\) and HI would also not work because Ca(OH)\(_2\) is a basic compound and would react with HI to form water and CaI\(_2\).

Therefore, the correct answer is (c) Ca and HI.

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Answer:

C. Rockets need only upward thrust as a force for flight.

Explanation:

This is correct

Answer:

c

Explanation:

The mass percent of C (carbon) in carbonic acid or H₂CO₃ is 19.36%.

The mass percent of C in carbonic acid (H₂CO₃) can be calculated by finding the molar mass of each element in the compound and then dividing the molar mass of C by the total molar mass of the compound.  

The molar mass of H is 1.008 g/mol, the molar mass of C is 12.01 g/mol, and the molar mass of O is 16.00 g/mol.

The total molar mass of H₂CO₃ is:

  (2 x 1.008) + (12.01) + (3 x 16.00) = 62.03 g/mol

The mass percent of C in H₂CO₃ is:

  (12.01 / 62.03) x 100 = 19.36%

Therefore, the correct answer is B) 19.36%.

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