How does tension affect the speed of a wave in a rope

[tex]\tt \large{\boxed{\bold{Nt=No.(\frac{1}{2}) ^{\frac{T}{t1/2} } }}[/tex]

Nt/No = 1/8

T = duration of decay

t 1/2 = half-life

[tex]\tt \dfrac{1}{8}=\dfrac{1}{2}^\dfrac{T}{5}}\\\\(\dfrac{1}{2})^3=\dfrac{1}{2}^\dfrac{T}{5}}\\\\3=\dfrac{T}{5}\rightarrow T=15~years[/tex]

Answer:

Two

Explanation:

Nitrate has a charge of negative 1 and the Iron (II) tells us the iron in that formula has a charge of +2, so in order for the iron to have to equal positive two, there has to be two negative. Since on nitrate ion is -1, you need two to make -2.

Explanation:

4Al+3C+H2O→4Al(OH)3+3CH4

Balanced reaction:- 4Al+3C+HH O→4Al(OH)3+3CH4

The mixture of sodium chloride and broken glasses can be separated by dissolution, filtration, and evaporation respectively.

The mixture containing sodium chloride and broken glasses can be separated as follos:

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Answer:

Temperature. An increase in temperature typically increases the rate of reaction. An increase in temperature will raise the average kinetic energy of the reactant molecules.

8305 grams of HNO3 would be needed to prepare 5.5L of a solution. Details on how to calculate mass is found below.

The mass of a substance in a solution can be calculated using the following formula:

Density = mass ÷ volume

According to this question, 5.5L of a HNO3 solution is given.

Density of HNO3 is 1.51 g/cm³

Volume of HNO3 = 5500mL

1.51 = mass/5500

mass = 8305g

Therefore, 8305 grams of HNO3 would be needed to prepare 5.5L of a solution.

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Unsaturated organic compounds with a carbon-to-carbon double bond and alkynes with a carbon-to-carbon triple bond, as well as aldehydes and ketones with a carbon-to-oxygen double bond, undergo addition reactions.

Answer:

A

Explanation:

Volcanoes and earthquakes occur due to movement of the Earth's tectonic plates.

Both volcanoes and earthquakes occur due to movement of the Earth's tectonic plates. They both occurs due to the heat and energy that is releasing from the Earth's core. Earthquakes can increase or fastens the volcanic eruptions through severe movement of tectonic plates.

Volcanoes eruption occurs when molten rock called magma rises to the surface. Magma is formed when the earth's mantle part melts due to higher temperature.

So we can conclude that volcanoes and earthquakes occur due to movement of the Earth's tectonic plates.

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Answer: Zn2+

Explanation:

The standard reduction potential of the given species is as follows:-

[tex]\begin{aligned}&Z_{(aq)}^{2+}+2 e^{-} \longrightarrow {Zn}(\mathrm{s}) \quad E^{\circ}=-0.76 \mathrm{~V}\\&\mathrm{Mn}_{(\text {aq) }}^{2+}+2 e^{-} \longrightarrow \mathrm{Mn}(\mathrm{s}) \quad E^{\circ} = -1.03 \mathrm{~V}\\&\mathrm{Na}^{+}_{(\text {aq) }} + e^{-} \longrightarrow \mathrm{Na}\text{(s)} \quad E^{\circ}=-2.71 \mathrm{~V}\end{aligned}[/tex]

[tex]\begin{aligned}&\mathrm{Al}_{(\text {aq) }}^{3+}+3 e^{-} \longrightarrow \text {Al}\text{(s)}\quad E^{0}=-1.66 \mathrm{~V}\\&\mathrm{Li}^{+}(aq)+{e}^{-} \longrightarrow \mathrm{Li}\text{(s)} \quad E^{0}=-3.05 \mathrm{~V}\end{aligned}[/tex]

In the electrochemical series, the species having the lowest electromotive force—the lowest negative value—will be reduced first and the species having the highest negative value will be reduced last

Therefore, Zn2+ will be reduced first and Li+ will be reduced last

The reduction has been defined as the loss of electrons. The species of molten salt that reduces first has been zinc ion in electrolysis.

The electrolysis has been defined as the process of the ionization of the salt under the influence of the electric field.

The species with the lowest reduction potential will reduce first. The reduction potential of the following is:

Zinc has the lowest reduction potential and thus is the reduced first among the others.

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Answer:

As per Provided Information

Distance travelled by sound impulse through an aluminium rod is 1500 metres .

We have been asked to determine the time taken by the sound impulse to travel through aluminium rod .

As we know

Speed of sound in aluminium rod is 5100m/s .

Using Formulae

[tex] \boxed{\bf \: Time \: taken_{(Sound \: impulse)} = \cfrac{distance \: travelled \: by \: sound \: impulse}{speed \: of \: sound \: impluse}}[/tex]

Substituting the value and we obtain

[tex] \sf \qquad \longrightarrow \: Time \: taken_{(Sound \: impulse)} = \dfrac{1500}{5100} \\ \\ \\ \sf \qquad \longrightarrow \: Time \: taken_{(Sound \: impulse)} = \cancel\dfrac{1500}{5100} \\ \\ \\ \sf \qquad \longrightarrow \: Time \: taken_{(Sound \: impulse)} = 0.29 \: s[/tex]

Therefore ,

So, your answer is 0.29 s .

Answer:

Formula/Molecular Mass = 147.77415g/mol = 148g/mol (to 3 significant figures)

Explanation:

Given the Law of the Conservation of Mass, the amount of H2O produced will be equal to 10.00g-4.40g = 5.6g

Given equation n=m/M ,

n(H2O)= 5.6/ (1.008×2)+(15.999) = 0.318520677 moles

∴ x=0.318520677 moles

∴ Molecular mass (hydrated sodium sulfate) =

= (22.990×2)+(32.06)+(15.999×4)+[0.318...((1.008×2)+(15.999))]

= 147.77415g/mol

Answer:

Answer is in the attachment:

x=10

Explanation:

Answer:    

I am sure it is the reaction will shift right towards the

product

Explanation:

because of blood pressure

Answer:

Is this the full question

Explanation:

Reply or love the message so i can get a notification

Answer:

2.54kpa

Explanation:

p*v/t = constant

6.58/539=p2/2111

p2=211(6.50/539)

Answer:

2.53kpa

Explanation:

p1*v1/t1 = constant

the constant can be changed to p2*v2/t2

v2 can be removed from equation as it is constant

Answer:

Combustion of methane (hydrocarbons)

Photosynthesis.

Synthesis of sulfuric acid.

Equilibrium of carbonic acid and carbon dioxide gas.

Biological formation of calcium carbonate.

Rusting of iron.

Production of hydrogen from the action of acid on metal.

Oxidation of alcohol.

Explanation:

how this helps if do mark brainllest pls!!! :)

Answer:

In scientific reasoning, a hypothesis is constructed before any applicable research has been done. A theory, on the other hand, is supported by evidence: it's a principle formed as an attempt to explain things that have already been substantiated by data.

Explanation:

Answer:

Keratin :)

Explanation:

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Have an amaazing day!!

Please rate and mark brainliest!!

The option that would be best for making Julia model look more like a plant cell is putting the bag inside a larger clear plastic bag.

A cell is the basic and functional unit of life. Every living organism is made up of one or more cells.

However, a plant cell is morphologically different from an animal cell. One of the major differences is that a plant cell posseses a cell wall that protects the cell.

According to this question, Julia made a model of a cell in a clear plastic zipper bag. She used a marble for the nucleus and pinto beans for mitochondria.

Therefore, the option that would be best for making Julia model look more like a plant cell is putting the bag inside a larger clear plastic bag which will represent the cell wall.

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Explanation:

Q. What can you infer about magnetic domains from the fact that they are arrangements of atoms? The individual domains are extremely small.

Based on the table and the equation of reaction; the

The rate of a reaction is the rate at which reactants molecules are consumed or products are formed.

Based on the equation of reaction, the rate of consumption of oxygen is equal to the rate of consumption of methane.

Thus. rate of consumption of oxygen from time 20 seconds to time 60 seconds is calculated as follows:

Rate between 20 and 40 = 1.0 - 0.9/20

Rate between 40 and 60 = 0.9 - 0.85/20

Therefore, the rate of consumption of oxygen decreases with time.

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The product of the reaction will be polar in nature due to the bonds formed between hydrogen and oxygen or nitrogen.

The product of a chemical reaction is the substance which is formed at the end of the reaction by the reactant or reactants.

The product of a reaction can be formed from the rearrangement of atoms in a compound due to changes in the environment of that compound.

The product can also be formed by the addition or removal of atoms of the reactants.

In the example above, no reactant is shown, however the bonds formed between hydrogen and oxygen or nitrogen gives polarity to the product formed.

Hence, a reactant must be present for a product to be formed.

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The individual is most likely sifting through the debris which is found at the crime scene.

This is defined as the scattered remains of something which has been broken down as a result of incidents such as an explosion.

The wire mesh is used as it helps to remove long fibers present at the crime scene which is taken for investigation.

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Answer:

40%

Explanation:

hope it helps! God bless

Answer:

40% of Earth's land is used for agriculture.

n this questions certain

a

r

e

g

i

v

e

n

,

of moles ,n = 21 mol, Pressure P = 78 atm, Temperature T = 900 K, Volume V = ?

We have to calculate the volume of the given moles of gas at specific temperature and pressure.

Using Ideal Gas equation;

PV = nRT

V = nRT /P ( R = gas constant = 0.08206 L atm

m

o

l

−

1

K

−

1

)

V= 21 mol x 0.08206 L atm

m

o

l

−

1

K

−

1

x 900K / 78 atm

V= 73.854 L atm / 78 atm = 0.946 L