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Velocity change increases as the force increases.

Even though this question is incomplete, but we can approach it from the stand point of Newton's second law of motion.

According to this law, force is directly proportional to change in velocity.

F = m(v - u)/t

F = force applied

m = mass of the body

v = final velocity of the body

u = initial velocity of the body

t = time taken

This means that velocity change increases as force increases.

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Answer:

20 degree and 4000000N

Answer:

there are no term

Explanation:

what are the term

Answer:

[tex]P_N=1.33atm\\\\P_O=0.67atm[/tex]

[tex]P_T=2.00 atm[/tex]

Explanation:

Hello.

In this case, the first step is to compute the moles of nitrogen and oxygen given their initial P, T and V conditions via the ideal gas equation:

[tex]n_{N}=\frac{P_{N}V_{N}}{RT} =\frac{2.00atm*24.0L}{0.082\frac{atm*L}{mol*K}*273K}\\ \\n_{N}=2.144molN\\\\n_{O}=\frac{P_{O}V_{O}}{RT} =\frac{2.00atm*12.0L}{0.082\frac{atm*L}{mol*K}*273K}\\ \\n_{O}=1.072molO[/tex]

After that, since the total volume now, once the mixture is formed is the addition between the initial volumes (12.0 L + 24.0 L) is 36.0 L, the partial pressure of each gas turns out:

[tex]P_N=\frac{2.144mol*0.082\frac{atm*L}{mol*K}*273K}{36.0L}\\\\P_N=1.33atm\\\\P_O=\frac{1.072mol*0.082\frac{atm*L}{mol*K}*273K}{36.0L}\\\\P_O=0.67atm[/tex]

Thus, the final total pressure is:

[tex]P_T= P_N+P_O=1.33atm+0.67atm\\\\P_T=2.00 atm[/tex]

Best regards.

The missing graph is in the attachment.

Answer: (a) [S] = 0.0016M

              (b) Vmax = 3V; Vmax = [tex]\frac{3V}{2}[/tex]; Vmax = [tex]\frac{11V}{10}[/tex]

              (c) Enzyme A: black graph; Enzyme B = red graph

Explanation: Enzyme is a protein-based molecule that speed up the rate of a reaction. Enzyme Kinetics studies the reaction rates of it.

The relationship between substrate and rate of reaction is determined by the Michaelis-Menten Equation:

[tex]V=\frac{V_{max}[S]}{K_{M}+[S]}[/tex]

in which:

V is initial velocity of reaction

Vmax is maximum rate of reaction when enzyme's active sites are saturated;

[S] is substrate concentration;

Km is measure of affinity between enzyme and its substrate;

(a) To determine concentration:

[tex]0.25V_{max}=\frac{V_{max}[S]}{0.005+[S]}[/tex]

[tex]0.25V_{max}(0.005+[S])=V_{max}[S][/tex]

[tex]0.00125+0.25[S]=[S][/tex]

0.75[S] = 0.00125

[S] = 0.0016M

For a Km of 0.005M, substrate's concentration is 0.0016M.

(b) Still using Michaelis-Menten:

[tex]V=\frac{V_{max}[S]}{K_{M}+[S]}[/tex]

Rearraging for Vmax:

[tex]V_{max}=\frac{V(K_{M}+[S])}{[S]}[/tex]

(b-I) for [S] = 1/2Km

[tex]V_{max}=\frac{V(K_{M}+0.5K_{M})}{0.5K_{M}}[/tex]

[tex]V_{max}=\frac{V(1.5K_{M})}{0.5K_{M}}[/tex]

[tex]V_{max}=[/tex] 3V

(b-II) for [S] = 2Km

[tex]V_{max}=\frac{V(K_{M}+2K_{M})}{2K_{M}}[/tex]

[tex]V_{max}=\frac{V(3K_M)}{2K_M}[/tex]

[tex]V_{max}=\frac{3V}{2}[/tex]

(b-III) for [S] = 10Km

[tex]V_{max}=\frac{V(K_{M}+10K_M)}{10K_M}[/tex]

[tex]V_{max}=\frac{V(11K_{M})}{10K_{M}}[/tex]

[tex]V_{max}=\frac{11V}{10}[/tex]

(c) Being the affinity between enzyme and substrate, the lower Km is the less substrate is needed to reach half of maximum velocity.

Km of enzyme A is 2μM and of enzyme B is 0.5μM.

Enzyme B has lower Km than enzyme A, which means the first will need a lower concnetration of substrate to reach half of Vmax.

Analyzing each plot, notice that the red-coloured graph reaches half at a lower concentration, therefore, red-coloured plot is for enzyme B, while black-coloured plot is for enzyme A

Answer:

The answer is heterogeneous mixture

Answer:

The reaction is at equilibrium.

Explanation:

In thermodynamics, the Gibbs free energy is a term used traditionally to refer to the available or  useful work that can be obtained from a thermodynamic system.

Gibbs free energy is a measure of the chemical potential that a reaction has left to do work. Hence, if the free energy is zero, then the reaction has attained equilibrium, and there is no more work to be done

The statement that should be true related to the reaction should be that it should be at equilibrium.

In terms of thermodynamics, this energy should be applied for the availability or the useful work that should be obtained via the system of thermodynamics.

Also, it determined the chemical potential where the reaction has left for doing the work. Also in the case when the free energy should be zero so here the reaction should be attained the equilibrium.

hence, the option b is correct.

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Answer:

The consequences of soil erosion go beyond the loss of fertile land. It has contributed to increased runoff and sedimentation in streams and rivers, clogging these waters and causing declines in fish and other animals.

We can protect the community from soil erosion by -:

Explanation:

SOIL EROSION -: The soil erosion mechanism is both natural and man-made. In nature, this refers to the removal of the top layer of soil caused by wind and water, while human activity may increase exposure to these elements.

MAJOR EFFECTS OF SOIL EROSION -:

PROTECTION OF COMMUNITY FROM SOIL EROSION -

Some of the effects of erosion on the environment includes :

Ways to protect the earth from soil erosion includes

Soli erosion is the washing away of the top soil of the earth's crust which can be caused by the movement of wind , water or ice over the surface of the earth crust. this action leads to the degradation of the soil

Soli erosion leads to the washing away of soil nutrients and the pollution of waterways because of the deposition of soil particles into the waterways.  the washed away soil can also block the drainages leading to a bigger problem ( flooding ).

Some of the steps that would help protect the soil from the effects of soil erosion are planting of cover crops , mulching and use of crush rocks on areas that are used most frequently to prevent the washing away of the soil.

Hence we can conclude that the effects of soil erosion are Washing away of soil nutrients , Pollution of the waterways, Blockage of drainages while ways to protect the earth from erosion are ;planting of cover crops, Mulching, use of crush rocks on certain areas

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Answer:

A smaller temperature difference causes a smaller heat transfer

Explanation:

The greater the temperature difference, the greater the rate at which heat transfers.

Answer:

Glycogen

Explanation:

a,b,d are lipidic and glycogen is glucide

Explanation:

1a) CaCO₃(s) → Ca²⁺(aq) + CO₃²⁻(aq)

1b) Remember, solids are not included in the equilibrium equation.

K = [Ca²⁺] [CO₃²⁻]

1c) Adding CO₃²⁻ ions will shift the reaction to the left, producing CaCO₃(s) until equilibrium is restored.

2) 2 SO₂(g) + O₂(g) → 2 SO₃(g)

Kc = 2.5×10¹⁰ = [SO₃]² / ([SO₂]² [O₂])

2a) SO₂(g) + ½ O₂(g) → SO₃(g)

Kc = [SO₃] / ([SO₂] [O₂]^½)

Kc² = [SO₃]² / ([SO₂]² [O₂])

Kc² = 2.5×10¹⁰

Kc ≈ 1.58×10⁵

2b) SO₃(g) → SO₂(g) + ½ O₂(g)

Kc = [SO₂] [O₂]^½ / [SO₃]

Kc = 1 / (1.58×10⁵)

Kc ≈ 6.33×10⁻⁶

2c) 3 SO₂(g) + ³/₂ O₂(g) → 3 SO₃(g)

Kc = [SO₃]³ / ([SO₂]³ [O₂]^³/₂)

Kc = ([SO₃] / ([SO₂] [O₂]^½))³

Kc = (1.58×10⁵)³

Kc ≈ 3.95×10¹⁵

3) H₂(g) + I₂(g) → 2 HI(g)

K = [HI]² / ([H₂] [I₂])

Make an ICE table.

[tex]\left[\begin{array}{cccc}&Initial&Change&Equilibrium\\H_{2}&0.400&-0.240&0.160\\I_{2}&1.60&-0.240&1.360\\HI&0&+0.480&0.480\end{array}\right][/tex]

K = (0.480)² / (0.160 × 1.360)

K = 1.06

Answer:

All of the above are correct.

Explanation:

The Flame Test Shortcomings

Small quantities of most molecules can not be measured by the examination.

The signal's intensity ranges from one test to the next.

The test findings are impaired by impurities or toxins.

The test is not capable of differentiating between all components.

Answer:

• the warmth from the sun

• the heat from another a heater

• A cup of hot chocolate

•baking in an oven

Two everyday example that we say for the thermal energy of a substance being increased are, faster movement of the substances and boiling if liquids as well light absorption.

Thermal energy is a form of energy generated by heating up a substance. It can also be generated by the movement of its particles.

Vibrating molecules increases the thermal energy of a substance. Similarly, when we heat a substance it acquires more thermal energy.

Another way of increasing thermal energy is light absorption by the substance. Thermal energy associated with light increases the temperature of of the system which is absorbed the light.

Hence, the two ways by which thermal energy of a substance is increased are heating or boiling and faster movement.

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Answer:

option b is correct option = (6.76×10¹⁴ Hz)

Explanation:

Given data:

Wavelength of photon = 4.42×10⁻⁷ m

Speed of light = 2.99×10⁸ m/s

Frequency of radiation = ?

Solution:

Formula:

Speed of wave = frequency × wavelength

Now we will rearrange this formula.

frequency  = Speed of wave / wavelength

f = c/ λ

f =  2.99×10⁸ m/s / 4.42×10⁻⁷ m

f = 0.676×10¹⁵ Hz   (s⁻¹ = Hz)

f = 6.76×10¹⁴ Hz

Thus option b is correct option.

Valence electrons are electrons that are in the outermost orbitals of an atom. In the periodic table the elements are divided into groups. All elements of the first main group have one valence electron. All elements of the second main group have two valence electrons. And so on:

Answer:

13.3 L

Explanation:

Step 1: Given data

Step 2: Convert P₁ to atm

We will use the conversion factor 1 atm = 1.01325 bar.

3.36 bar × (1 atm / 1.01325 bar) = 3.32 atm

Step 3: Calculate V₂

We will use the combined gas law.

P₁ × V₁/T₁ = P₂ × V₂/T₂

V₂ = P₁ × V₁ × T₂/T₁ × P₂

V₂ = 3.32 atm × 15.0 L × 350 K/298 K × 4.40 atm

V₂ = 13.3 L

Answer:

-70.87 kJ

Explanation:

Let's consider the following balanced equation.

1/2 O₂(g) + SO₂(g) ⇄ SO₃(g)

We can calculate the standard Gibbs free energy of reaction (ΔG°r) from the standard Gibbs free energies of formation (ΔG°f) using the following expression.

ΔG°r = 1 mol × ΔG°f(SO₃(g)) - 1/2 mol × ΔG°f(O₂(g) - 1 mol × ΔG°f(SO₂(g))

ΔG°r = 1 mol × (-371.06 kJ/mol) - 1/2 mol × 0 kJ/mol - 1 mol × (-300.194 kJ/mol)

ΔG°r = -70.87 kJ

Answer:

stroke

Explanation:

Answer:

[tex]Kc=3.8x10^{-7}[/tex]

Explanation:

Hello.

In this case, for the chemical reaction:

[tex]2CH_3OH(l)+3O_2(g)\rightarrow 2CO_2(g)+4H_2O(g)[/tex]

We write the equilibrium expression including the gaseous or aqueous species only, that is why the methanol is not included due to heterogeneous equilibrium:

[tex]Kc=\frac{[CO_2]^2[H_2O]^4}{[O_2]^3}[/tex]

Whereas each gaseous species is powered to its stoichiometric coefficient (number before the species). In such a way, considering the equilibrium masses of carbon dioxide (44 g/mol), water (18 g/mol) and oxygen (32 g/mol) to be 1.56 g, 2.28 g and 3.33 g respectively, we compute the moles as we need molar concentrations in the equilibrium constant calculation:

[tex]n_{CO_2}=1.56g/(44g/mol)=0.0355mol\\\\n_{H_2O}=2.28g/(18g/mol)=0.127mol\\\\n_{O_2}=3.33 g/(32g/mol)=0.104mol[/tex]

Thus, into the 9.3.L vessel, the equilibrium concentrations are:

[tex][CO_2]=\frac{0.0355mol}{9.3L}=0.00382M[/tex]

[tex][H_2O]=\frac{0.127mol}{9.3L}=0.0137M[/tex]

[tex][O_2]=\frac{0.104mol}{9.3L}=0.0112M[/tex]

Therefore, the equilibrium constant shown with two significant figures is:

[tex]Kc=\frac{(0.00382M)^2(0.0138M)^4}{(0.0112M)^3} \\\\Kc=3.8x10^{-7}[/tex]

Best regards.

Answer:

H+ (aq) + OH- (aq) → H2O (l)

Explanation:

The net ionic equation is the main reaction going on in the system. The reaction between nitric acid and sodium hydroxide is a neutralization reaction.

In a neutralization reaction, the main reaction is the combination of hydrogen ions and hydroxide ions to form water. This reaction has been shown in the answer box.

Answer:

GDSSHCVJDJD

Explanation:

Answer:

description of matter:

Matter is everything around you. Atoms and compounds are all made of very small parts of matter. Those atoms go on to build the things you see and touch every day. Matter is defined as anything that has mass and takes up space (it has volume).

please give me brainliest if I answered you question correctly

The answer is "2 and 4"

Location 2 and 4 are likely to have subatomic particles that are constantly in motion,thus the correct option is D.

In physics, a subatomic particle is a particle smaller than an atom.According to the Standard Model of particle physics, a subatomic particle can be either a composite particle, which is composed of other particles (for example, a proton, neutron, or meson), or an elementary particle, which is not composed of other particles Particle physics and nuclear physics study these particles and how they interact.

Experiments show that light could behave like a stream of particles (called photons) as well as exhibiting wave-like properties. This led to the concept of wave–particle duality to reflect that quantum-scale particles behave like both particles and waves; they are sometimes called wavicles to reflect this.

Thus,  the correct option is D.

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Answer:

C.Potassium

Explanation:

As we know that Potassium is a mineral also at the same time it is an electrolyte. It helps for muscles work involves the muscles so that the heartbeat and breathing could be controlled.

Now as per the periodic table on an early basis that depends upon the similar properties so the element that should be grouped with the sodium is Potassium

hence, the option c is correct

According to the early periodic table the element that has been grouped together with Na has been Potassium. Thus, option C is correct.

The early periodic table has been consisted of the elements that has been arranged based on the increasing order of the atomic mass. The grouping of the elements has been performed based on the similarities with the elements.

The sodium has been the electrolyte that has been responsible for maintaining the electrolyte balance in the human body. The sodium has been the smaller size element with being highly reactive.

The element that has also been small size with high reactive, and has been able to maintain the body electrolyte balance has been Potassium.

Thus, according to the early periodic table the element that has been grouped together with Na has been Potassium. Thus, option C is correct.

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