Determine the normal stress and shear stress acting on the inclined plane ab. solve the problem using the stress transformation equations. show the results on the sectional element.

Answer:

Its A

Explanation:

Answer:

A reaction in which the oxidation state of one element increases and another decreases

Explanation:

Redox reaction means both oxidation and reduction take place in that reaction.

So when an element oxides its oxidation state increases and when an element reduces its oxidation state decrease.

Answer:

A. A reaction in which an element in one molecule is traded for an element in another.

Explanation:

a.p.3.x

Answer:

0.06 liter

Explanation:

First, let us look at the equation of the first reaction:

2HCl + Mg ----> MgCl2 + H2

2 moles of HCl requires 1 mole of Mg for complete reaction.

Mole of HCl available = molarity x volume

                                    0.2 x 50/1000 = 0.1 mole

Mole of Mg available = mass/molar mass

                                    0.6/24.3 = 0.02 mole.

Thus, HCl is in excess by 0.1 mole.

Now, let us look at the second reaction:

HCl + NaOH ----> NaCl + H2O

mole ratio of HCl to NaOH is 1:1

Remember that 0.1 mole HCl is left from the first reaction. Thus, 0.1 mole of the alkaline would also be needed.

Hence, volume of NaOH needed = mole/molarity

                        0.1/1.67 = 0.06 dm3

The volume of alkaline needed would, therefore, be 0.06 liter.

Answer: Ion

Explanation: An ion is an atom or molecule with a net electrical charge. The charge of an electron is considered to be negative by convention and this charge is equal and opposite to the charge of a proton, which is considered to be positive by convention. The net charge of an ion is not zero because its total number of electrons is unequal to its total number of protons.

The wavelength of the electromagnetic radiation is 0.0300 cm.

The wavelength of electromagnetic radiation can be found using the equation c = λf, where c is the speed of light, λ is the wavelength, and f is the frequency. Rearranging the equation to solve for the wavelength gives us λ = c/f. Plugging in the given values for c and f, we get:

λ = (3.00 x 10^8 m/s) / (1.00 x 10^12 Hz)
λ = 3.00 x 10^-4 m

To convert meters to centimeters, we multiply by 100:
λ = (3.00 x 10^-4 m) (100 cm/1 m)
λ = 3.00 x 10^-2 cm

More questions on electromagnetic radiation can be obtained here: https://brainly.com/question/13828899

#SPJ11

The addition of 800g of ethanol (CH₃OH) to 8.0 x 10³g of water would lower the freezing point by approximately 4.1 degrees Celsius.

To calculate the freezing point depression, we can use the formula ΔT = K_f × m × i, where ΔT is the change in freezing point, K_f is the freezing point depression constant for water (1.86 degrees Celsius meter⁻¹), m is the molality of the solute, and i is the van 't Hoff factor.

First, let's determine the molality (m) of the ethanol solution.

Molality (m) is defined as moles of solute per kilogram of solvent.

Moles of ethanol (CH₃OH) = mass / molar mass

Molar mass of ethanol = 12.01 + (4 × 1.01) + 16.00 = 46.07 g/mol

Moles of ethanol = 800g / 46.07 g/mol = 17.36 mol

Mass of water = 8.0 x 10³g = 8.0 kg

Molality (m) = moles of solute / mass of solvent = 17.36 mol / 8.0 kg = 2.17 mol/kg

Since ethanol dissociates into its constituent ions (CH₃OH → CH₃O⁻ + H⁺), the van 't Hoff factor (i) is 2.

Now we can calculate the freezing point depression (ΔT).

ΔT = K_f × m × i = 1.86 °C·m⁻¹ × 2.17 mol/kg × 2 = 8.057 °C

Therefore, the freezing point would be lowered by approximately 8.057 °C, which can be rounded to 4.1 degrees Celsius.

To know more about freezing point, refer here:

https://brainly.com/question/31357864#

#SPJ4

The engineers fitted a multiple linear regression model to analyze the effect of variables on the efficiency of the ammonia oxidation process, assessed significance levels, and recommended a final model.

Engineers conducted an investigation on the efficiency of a process that oxidizes ammonia to nitric acid by studying the effect of three variables: Airflow, Water temperature, and Acid concentration.

They collected data on stack loss, which represents the percentage of unabsorbed ammonia escaping from the absorption tower. Using R, they fitted a multiple linear regression model with polynomial terms and interactions for the predictors.

They analyzed the model summary table to determine the mean square error (MSE), R², and adjusted R².

They also assessed the significance of variables/terms at a 0.1 significance level, tested the joint significance of interaction terms, and evaluated the joint significance of quadratic terms.

Based on the results, they recommended a final model containing only significant variables/terms at a significance level of 0.05.

Learn more about engineers fitted

brainly.com/question/31665459

#SPJ11

Ag2SO4 dissolves to form 2 Ag+(aq) ions and 1 SO4^2−(aq) ion. Letting s represent the molar solubility of Ag2SO4 the Ksp expression for Ag2SO4 is Ksp=[Ag+]^2[SO4^2−]=(2s)^2(s)=4s3

A substance's solubility is the greatest amount that will dissolve in a given amount of solvent at a given temperature. A specific solute-solvent combination's solubility is a defining trait, and the solubilities of various compounds can vary significantly. The saturation solution's concentration determines a solute's solubility. At a specific temperature, a saturated solution is one in which all of the solute has dissolved into the solvent. When the solute has completely dissolved in the solvent, the mixture is said to be unsaturated.

For which of the following salts would the relationship between molar solubility, s, in mol/L, and the value of Ksp be represented by the equation Ksp⁢=4s3 ?

answer choicesPbCO3

Mg3(PO4)2

Ag2SO4

MnS

Learn more about solubility here:

https://brainly.com/question/28170449

#SPJ4

Answer:

Option 2:

The warmth of the spoon is conducted to the ice cream making it easier to scoop out.

Explanation:

Conduction refers to the transfer of heat from a hotter body to a cooler one, by virtue of physical contact between the two bodies. This is opposed to radiation, where there does not need to be any contact between the two bodies before heat con flow.

The warm spoon, once it has physical contact with the cool ice cream, it loses some of its heat to the ice cream, warming it up, making it easier to scoop up.

The order of the isoelectric point (pI) in increasing order are

Therefore, the correct answer is option "C".

The isoelectric point (pI) is the pH at which a particular amino acid has a neutral charge. Each amino acid has a different pI due to the differences in their side chains.

The order of the pIs in increasing order (from acid to base) can be determined by looking at the pI values of each amino acid.

Therefore, the order of the pIs in increasing order (from acid to base) is Aspartic Acid, Cysteine, Asparagine, Alanine, and Arginine.

learn how to calculate the isolectric point of a protein

https://brainly.com/question/14272163

#SPJ11

Answer:

T° freezing solution = -22.8°C

Explanation:

To solve this problem we apply, the Freezing Point Depression. This is a colligative property which its formula is:

T° freezing pure solvent - T° freezing solution = Kf . molality . i

i = Van't Hoff factor.

We have been informed is a nonionizing solute, so i = 1

Our solute is ethylene glycol, so le'ts determine the moles to get molality

388 g . 1 mol / 62.07 g = 6.25 moles

molality (m) = moles of solute /kg of solvent

We convert mass of solvent, water, to kg → 510 g . 1kg /1000g = 0.510 kg

6.25 mol /0.510kg = 12.25 m

We replace at formula → 0°C - T° freezing solution = 1.86°C/m . 12.25 m . 1

T° freezing solution = -22.8°C

Answer:

Al(NO3)3 + 3NaOH -----> Al(OH)3 + 3NaNO3

Allylic carbocation is the reactive intermediate in the reaction of 1,3-diene with hbr, resulting in 1,4-addition.

Learn more about Allylic carbocation here:

https://brainly.com/question/28250336

#SPJ4

Answer:

The same amount of atoms (3 carbon atoms, 6 oxygen atoms, and 4 hydrogen atoms).

Explanation:

According to the law of conservation of mass, when a chemical reaction takes place there is no synthesis or degradation of matter, that is, matter can be neither created nor destroyed. It can only be transformed.

Therefore, in a chemical reaction the atoms are conserved. That means that the elements that in definite proportions are forming a compound, will reorganize to form new compounds, and the amount and type of atoms of the products will be the same as the reactants.

In summary, if the reactants in a chemical equation have 3 carbon atoms, 6 oxygen atoms, and 4 hydrogen atoms, the products of the chemical equation will have 3 carbon atoms, 6 oxygen atoms, and 4 hydrogen atoms as well.

Given data:H2O vapor content: 13 gramsH2O vapor capacity: 52 grams at 25 degrees Celsius 13 grams at 10∘C52 grams at 30∘CFormula used to find the dew point:$$\dfrac{13}{52}=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$$$\frac{1}{4}=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$

Where A is the constantDew Point:It is the temperature at which air becomes saturated with water vapor when the temperature drops to a point where dew, frost or ice forms. To solve this question, substitute the given data into the formula.$$13/52=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$$$13(17.27-A)=3\pi A(ln100)$$By simplifying the above expression, we get$$A^2-17.27A+64.78=0$$Using the quadratic formula, we get$$A=9.9,7.4$$

The dew point is 7.4 since it is less than 10°C.More than 100:The term "More than 100" has not been used in the question provided.

To know more about temperature  visit:

https://brainly.com/question/7510619

#SPJ11

Answer:

B. chemical

Explanation:

Chemical change cannot go back to its original form

Answer:

B

Explanation:

bubbles is a form of chemical change :)

The conditions for a standard electrochemical cell. select one or more : pressure of 1 atm temperature of 298 k solution concentrations of 1 M.

The electrochemical cell is the cell that is capable of generating the electrical energy from the chemical reactions or by the use of the electrical energy to cause the chemical reaction. The conditions for a standard electrochemical cell. select one or more : pressure of 1 atm temperature of 298 k solution concentrations of 1 M.  

There are the two types of the electrochemical cells is as follows : the galvanic called the electrolytic cells. the galvanic cell is also called as the voltaic cell.

To learn more about temperature here

https://brainly.com/question/14995282

#SPJ4

Answer:

Burning paper

Explanation:

I got it right on the test.

The mass of oxygen that must react is 182 g to form 3.80 mol Al₂O₃.

The molar mass of the substance is the sum of the atomic masses of the individual constituent atoms of the compound or molecule, whereas the mass of the substance is its weight.

The chemical process is depicted as follows:

4Al+3O₂⇒2Al₂O₃

According to the process, 3 moles of oxygen are needed to create 2 moles of aluminum oxide, hence 3.80 moles of aluminum oxide will require x moles of oxygen.

moles oxygen = 3/2 x  3.80 moles of aluminum oxide

moles oxygen = 5.7 moles

mass oxygen = moles x mass molar

mass oxygen = 5.7 x 32 g/moles= 182.4 g

Learn more about mass at https://brainly.com/question/28171334

#SPJ4

Answer:

dic

Explanation:

Answer:

B. Nonmetals

Explanation:

brainliest please have wonderful day!!!

A potassium atom's ground state electron configuration is 1s2, 2s2, 2p6, 3s2, 3p6, 4s1.

An atom's electron configuration is a picture of how electrons are arranged in relation to orbital shells and subshells. Consequently, this is potassium's electron configuration.

Making Electron Configurations in Writing. Write the energy level (the period) first, then the subshell that needs to be filled, and finally the superscript, which indicates how many electrons are in that subshell. The atomic number, Z, is the sum of all the electrons.

To know more about  electron configuration  visit:-

https://brainly.com/question/29757010

#SPJ4

18 electrons.

According to the question, we have that sulphur has 16 electrons and after bonding with magnesium acquired a 2-charge. The sulphur ion S2- shows that sulphur has gained 2electrons to become stable.

Amount of electron S2- have = 16 electron + 2electrons

Amount of electron S2- have = 18 electrons

Hence the number of electrons S2- ion have is 18 electrons.

The correct order of apparatus using the letters only used to prepare and investigate the sample of the nature of pH onion solution is:

Pipette (P) -> Onion (O) -> Blender (B) -> Filter Paper (F) -> pH Meter (H)

A solution's acidity or basicity (alkalinity) is determined by its pH. It is described as the base-10 negative logarithm of the hydrogen ion concentration ([H+]) in the solution.

A pH of 7 is regarded as neutral (neither acidic nor basic) on the pH scale, which runs from 0 to 14. Acidic is a pH value below 7, while basic is a pH value above 7. Many chemical and biological processes depend on the acidity or basicity of a solution, therefore it is frequently required to modify or control the pH to get the desired results.

Learn more on pH here https://brainly.com/question/22390063

#SPJ1

Explanation:

any zero coming last after any decimal point is not recognized as a number hence .0030 is equivalent .003 therefore there is only one significant figures in the number .0030

a. 1