FILL IN THE BLANK A ______, also called a radical scavenger, is a compound that prevents a chain process from either getting started or continuing. Example?

we'll need to understand the relationship between frequency , capacitor, and voltage in a series RC circuit.
In a series RC circuit, the voltage across the capacitor (Vc) and the voltage across the resistor (Vr) are related to the total voltage (Vt) in the circuit.

According to Kirchhoff's voltage law, the sum of the voltages across the resistor and capacitor must equal the total voltage:
Vt = Vr + Vc
At the maximum voltage across the frequency capacitor, the capacitor will behave like an open circuit, and the current flowing through the circuit will be at its minimum. Since the current through the resistor and capacitor is the same in a series circuit, the current through the resistor will also be at its minimum.
As the voltage across the resistor is given by Ohm's Law:
Vr = I × R
where I is the current and R is the resistance, at minimum current, the voltage across the resistor (Vr) will also be at its minimum. In this particular case, when the voltage across the capacitor is at its maximum, the voltage across the resistor will be zero volts (0 V).

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False.

Thermal energy is usually transferred in fluids by convection, which is the transfer of heat through the movement of fluids (such as liquids or gases).

What is Thermal Energy?

Thermal energy is the energy that is generated by the movement of atoms or molecules within a substance. It is a form of kinetic energy that is related to the temperature of the substance, and it is transferred from one object to another as a result of a temperature difference.

Convection occurs when a warmer fluid or object is in contact with a cooler fluid or object, causing the warmer fluid to transfer its thermal energy to the cooler one.

Radiation, on the other hand, is the transfer of thermal energy through electromagnetic waves, and it can occur in fluids as well as in solids and gases. However, radiation is generally less efficient in fluids than in solids or gases, and it is not the primary method of thermal energy transfer in fluids.

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The magnitude of the frictional force on the skier is 20 N.

The magnitude of the vertical force  of skier is 666.14 N.

The value of the frictional force on the skier is determined by applying Newton's second law of motion as follows;

F - Ff = ma

where;

At a constant speed, the acceleration, a = 0

F - Ff = 0

F = Ff

20 N =  Ff

The vertical force due to weight of the skier is calculated as follows;

Fₙ = mg cosθ

where;

Fₙ = (75 x 9.8) cos(25)

Fₙ = 666.14 N

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Answer:

The impulse of the ball hitting the wall can be calculated using the impulse-momentum theorem, which states that the impulse of a force is equal to the change in momentum it produces:

Impulse = Change in momentum

The change in momentum of the ball can be calculated as follows:

Change in momentum = Final momentum - Initial momentum

The final momentum of the ball can be calculated using the mass and velocity of the ball after bouncing off the wall:

Final momentum = mass x velocity

Final momentum = 0.45 kg x (-28 m/s) (since the ball is moving to the left)

Final momentum = -12.6 kg m/s

The initial momentum of the ball can be calculated using the mass and velocity of the ball before hitting the wall:

Initial momentum = mass x velocity

Initial momentum = 0.45 kg x 38 m/s (since the ball is moving to the right)

Initial momentum = 17.1 kg m/s

Therefore, the change in momentum of the ball is:

Change in momentum = -12.6 kg m/s - 17.1 kg m/s

Change in momentum = -29.7 kg m/s

Since impulse is equal to the change in momentum, the impulse of the ball hitting the wall is:

Impulse = Change in momentum

Impulse = -29.7 kg m/s

Therefore, the impulse of the ball hitting the wall is 29.7 kg m/s to the left.

Explanation:

Answer:

the number of loops in the coil and the electric current.

Explanation:

Just took the test and got it correct.

The centripetal acceleration of the car is 3.56 m/s².

The centripetal acceleration of an object moving in a circular path is given by the formula:

a = v²/r

where "v" is the speed of the object, and "r" is the radius of the circular path.

In this problem, the car is moving at a constant speed of 14 m/s around a circle with radius 55 m. Plugging in the values, we get:

a = (14 m/s)² / 55 m = 3.56 m/s²

Therefore, the centripetal acceleration of the car is 3.56 m/s².

centripetal acceleration is the rate at which a body moves through a circle. Due to the fact that velocity is a vector quantity (i.e., it has both a magnitude, the speed, and a direction), when a body travels in a circle, its direction is continually changing, which causes a change in velocity, which results in an acceleration. The circle's centre is where the acceleration is pointed radially. The centripetal acceleration, denoted by the symbol ac, has a magnitude equal to the square of the body's velocity along the curve divided by the radius of the circle, denoted by the symbol r. This is also known as the formula ac = v2/r. Units for centripetal acceleration are metres per second squared. The force causing this acceleration is known as the centripetal force and is also directed towards the centre of the circle.

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An electrical arc blast can approach temperatures of 35,000°F (19,426°C), which vaporizes metal parts and produces an explosive and deadly pressure wave.

An electrical fault with a high fault current or an electric arc fault can result in an explosive release of energy known as an electric arc blast. It's a dangerous situation that could seriously harm nearby equipment and endanger people's safety. The quick release of high-pressure gases, great heat, and intense light that occur during an electric arc blast cause an explosive explosion-like phenomena. The blast may cause the air around it to rapidly expand, creating a shockwave and launching debris into the air.

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General relativity deals with accelerated reference frames.

General relativity, developed by Albert Einstein, is a theory of gravitation that addresses the effects of gravity on spacetime. It deals with accelerated reference frames because gravity can be seen as a form of acceleration. Unlike special relativity, which deals with reference frames moving at constant velocities, general relativity considers frames where acceleration is present.

In these frames, the curvature of spacetime is determined by the presence of mass and energy, causing objects to follow geodesics (the shortest path between two points in spacetime). This accounts for phenomena such as time dilation and the bending of light around massive objects.

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The average kinetic energy of particles varies unpredictably because of rise in heat of the system, this heat is given by, Q = McΔT

When we add energy (heat), the mobility of atoms and molecules increases, increasing the temperature. By removing energy (cooling), the atoms and molecules slow down and therefore the temperature drops.

Heat is the term used to describe the transfer of thermal energy from a higher temperature substance to a lower temperature substance.

The change in heat is given as, Q = McΔT, here, M is mass, c is specific heat and ΔT shows the change in temperature. This heat increases is responsible for increased kinetic energy.

Heat is the transfer of energy from a higher temperature substance to a lower temperature substance. This heat transfer is caused by the temperature difference between two adjacent elements.

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Mineralogically, barite is a sulfate, bornite is a sulfide, cuprite is an oxide, magnesite is a carbonate.

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Among the mineral groups, barite is a sulfide mineral, bornite is a sulfide mineral, cuprite is an oxide mineral, and magnesite is a carbonate mineral.

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Answer:

G.P.E  = 414050 Joules or 414.05 Kilojoules

Explanation:

Given the following data;

Mass = 65 kg

Height = 650 m

We know that acceleration due to gravity is equal to 9.8m/s²

To find the gravitational potential energy;

Gravitational potential energy (GPE) is an energy possessed by an object or body due to its position above the earth.

Mathematically, gravitational potential energy is given by the formula;

\( G.P.E = mgh\)

Where;

Substituting into the equation, we have;

\( G.P.E = 65 * 9.8 * 650 \)

\( G.P.E = 414050 \)

G.P.E  = 414050 Joules or 414.05 Kilojoules.

Answer:

Sample Starting Temperature Ending Temperature Change in Temperature

50 g sand      

50 g water      

100 g water      

Explanation:

Its

20C

32C

46C

Answer:

Explanation:

A hydrogen atom is in its ground state (nᵢ = 1) when a photon impinges upon it. The atom absorbs the photon, which has precisely the energy required to raise the atom to the nf = 3 state. (a) The photon's energy that was absorbed is approximately 1.51 eV (negative sign indicates absorption).(b)option B and C are correct.

To determine the photon's energy and the energies of photons that might be emitted when the hydrogen atom returns to the ground state, we can use the energy level formula for hydrogen atoms:

E = -13.6 eV / n^2

where E is the energy of the electron in the atom, and n is the principal quantum number.

(a) To find the energy of the photon that was absorbed by the hydrogen atom to raise it from the ground state (nᵢ = 1) to the nf = 3 state, we need to calculate the energy difference between the two states:

ΔE = Ef - Ei = (-13.6 eV / 3^2) - (-13.6 eV / 1^2)

Calculating the value of ΔE:

ΔE = -13.6 eV / 9 + 13.6 eV

= -1.51 eV

Therefore, the photon's energy that was absorbed is approximately 1.51 eV (negative sign indicates absorption).

(b) When the hydrogen atom returns to the ground state, it can emit photons with energies corresponding to the energy differences between the excited states and the ground state. We need to calculate these energy differences and check which values are present among the given options.

ΔE1 = (-13.6 eV / 1^2) - (-13.6 eV / 3^2) = 10.20 eV

ΔE2 = (-13.6 eV / 1^2) - (-13.6 eV / 4^2) = 10.20 eV

ΔE3 = (-13.6 eV / 1^2) - (-13.6 eV / 5^2) = 12.10 eV

ΔE4 = (-13.6 eV / 1^2) - (-13.6 eV / 6^2) = 12.10 eV

ΔE5 = (-13.6 eV / 1^2) - (-13.6 eV / 7^2) = 13.55 eV

ΔE6 = (-13.6 eV / 1^2) - (-13.6 eV / 8^2) = 13.55 eV

ΔE7 = (-13.6 eV / 1^2) - (-13.6 eV / 9^2) = 13.55 eV

Comparing the calculated energy differences with the given options:

(A) 1.89 eV: This energy difference does not match any of the calculated values.

(B) 12.1 eV: This energy difference matches ΔE3 and ΔE4.

(C) 10.2 eV: This energy difference matches ΔE1 and ΔE2.

(D) 13.6 eV: This energy difference does not match any of the calculated values.

Therefore option B and C are correct.

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Answer:

3 meters per second

Explanation:

72 divided by 3= 24 meters in 8 seconds

24/8= 3, so 3 meters per second

Answer:

1.69 T

Explanation:

Applying,

F = BvqsinФ.................. Equation 1

Where F = Force, B = magnetic field, v = velocity, q = charge on an electron, Ф = angle between the electron and the field.

make B the subject of the equation,

B = F/(vqsinФ)............. Equation 2

From the question,

Given: F = 2.0×10⁻¹³ N, v = 7.4×10⁵ m/s, Ф = 90°

Constant: q = 1.60×10⁻¹⁹ C

Substitute into equation 2

B =  2.0×10⁻¹³/(7.4×10⁵×1.60×10⁻¹⁹×sin90°)

B = 0.169×10

B = 1.69 T

Answer:

its A,D,E

Explanation:

I got 2 right one of them wrong

Answer:

A baseball speeds up as it falls through the air.

Yes.  Forces on the balloon are unbalanced.  

The balloon is speeding up, so we know that the downward force

of gravity is stronger than the upward force of air resistance.

A soccer ball is at rest on the ground.

No. The ball is not accelerating, so we know that the forces on it

are balanced.

The downward force of gravity on the ball and the upward force

of the ground are equal.

An ice skater glides in a straight line at a constant speed.

No. The skater's speed and direction are not changing, so he is not

accelerating.  That tells us that the forces on him are balanced.

A bumper car hit by another car moves off at an angle.

Yes.  The direction in which the car was moving changed.  

That's acceleration, so we know that the forces on it are unbalanced,

at least at the moment of impact.  

A balloon flies across the room when the air is released.

Yes.  The balloon was not moving. But when the little nozzle was

opened, it started to zip around the room.  So its speed changed.

And, as it goes bloozing around the room, its direction keeps changing too.  

There's a whole lot of acceleration going on, so we know the forces on it

are unbalanced.

Explanation:

The margin of error for the survey result is approximately 3.9%, and the 95% confidence interval for the proportion of people who believe Congress should investigate possible Russian interference in the 2016 general election is approximately 49.1% to 56.9%.

To calculate the margin of error and confidence interval, we use the formula for the standard error of a proportion:

SE = √[(p * q) / n]

where SE is the standard error, p is the sample proportion (53% or 0.53), q is the complement of p (1 - p), and n is the sample size (800).

In this case, p = 0.53, q = 1 - p = 0.47, and n = 800.

Using the formula, we can calculate the standard error:

SE = √[(0.53 * 0.47) / 800] ≈ 0.0195

The margin of error is then calculated by multiplying the standard error by the appropriate z-score for a 95% confidence level. The z-score for a 95% confidence level is approximately 1.96.

Margin of Error = 1.96 * 0.0195 ≈ 0.0382 ≈ 3.9%

To find the confidence interval, we subtract and add the margin of error from the sample proportion:

Lower bound = p - Margin of Error = 0.53 - 0.039 ≈ 0.491 or 49.1%

Upper bound = p + Margin of Error = 0.53 + 0.039 ≈ 0.569 or 56.9%

Therefore, the 95% confidence interval for the proportion of people who believe Congress should investigate possible Russian interference in the 2016 general election is approximately 49.1% to 56.9%.

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In the Bohr model, electrons in an atom move in circular orbits around the nucleus. The energy level of an electron is denoted by the principal quantum number n. In this case, the hydrogen atom is in the n = 9 state, which means that the electron is in the ninth energy level.

The circumference of the orbit in the Bohr model can be calculated using the formula 2πr, where r is the radius of the orbit. The radius of the nth orbit can be calculated using the formula rn = (0.529 × n^2)/Z, where Z is the atomic number of the element (in this case, Z = 1 for hydrogen).

So, the radius of the ninth orbit of the hydrogen atom is rn = (0.529 × 9^2)/1 = 42.2 picometers.

The wavelength of an electron is related to its momentum by the de Broglie equation, which states that the wavelength is equal to Planck's constant divided by the momentum: λ = h/p. In the Bohr model, the momentum of an electron in a circular orbit is quantized, and it can only have certain values determined by the principal quantum number n. The momentum of an electron in the nth orbit can be calculated using the formula pn = n × h/(2πr).

Therefore, the wavelength of an electron in the ninth orbit of hydrogen is λn = h/(pn) = h/(n × h/(2πr)) = 2πr/n.

Substituting the value of r for the ninth orbit of hydrogen, we get:

λ9 = 2π × 42.2 pm / 9 = 23.5 picometers

So, one electron wavelength fits around the ninth orbit of hydrogen approximately 1.8 times (42.2 pm / 23.5 pm ≈ 1.8).

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To determine the greatest distance you can be from the base camp at the end of the third displacement, regardless of direction, we need more specific information about the magnitudes and directions of the displacements.

Displacement is a vector quantity that has both magnitude and direction. The distance covered during multiple displacements depends on the individual magnitudes and directions of each displacement. Without specific values, it is not possible to determine the exact greatest distance from the base camp.

If you provide the magnitudes and directions of the three displacements, I can help you calculate the total distance and determine the maximum possible distance from the base camp at the end of the third displacement.

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Given :

Walk in forward direction is 30 m .

Walk in backward direction is 25 m .

To Find :

The distance and displacement .

Solution :

We know , distance is total distance covered and displacement is distance between final and initial position .

So , distance travelled is :

D = 30 + 25 m = 55 m .

Now , we first move 30 m in forward direction and then 25 m in backward direction .

So , displacement is :

D = 30 - 25 m = 5 m .

Therefore , distance and displacement covered is 55 m and 5 m respectively .

Hence , this is the required solution .

Answer:

A. wind blows from the land toward the sea.

B. that this happens because the land cools faster than the sea, and, as a result, the air over land cools faster, which creates an area of higher pressure on land and lower pressure over the sea.

Explanation:

bc I am smrt

PLZ thank five star

and brainliest would be appreciated:-)

Answer:

Bacteria

Explanation:

UV kills bacteria and its 8 letters

Given, mass of block 30kg, initital velocity 6.1m/s, final velocity=4.5m/s, change in kinetic energy= mvi^2/2-mvi/2- mvf2/2, KE= 254.4J change in KE= heat generated by friction L=3.4*10^5J/kg, 254.4= m*3.4*10^5, m=0.748gm.

There are numerous methods for calculating an object's mass, including:

Mass Equals volume * density (m = V). The mass of an object can be calculated by multiplying its density by its volume because density is a measure of mass per unit of volume. Mass equals force times acceleration (m=F/a). Gravitational acceleration and mass are equal (m=W/g).

Center of Mass in a System of Two Particles (m1+m2) rcm equals (m1 r1+m2 r1). The sum of the products of the masses of the two particles and their respective position vectors equals the product of the total mass of the system and the position vector of the center of mass.

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The magnitude of the component of gravity in the x-direction is approximately 16.05 N, and the direction of the component of gravity in the x-direction is downwards along the ramp.

To determine the magnitude and direction of the component of gravity in the x-direction, we need to consider the gravitational force acting on the box and its decomposition into x and y components.

The weight of the box can be calculated using the formula;

Weight = mass × gravitational acceleration

where the mass of the box is given as 2 kg, and the gravitational acceleration is approximately 9.8 m/s².

Weight = 2 kg × 9.8 m/s² = 19.6 N

Since the box is on an inclined plane, we need to consider the gravitational force component that acts parallel to the ramp (x-direction) and the perpendicular component (y-direction).

The component of gravity in the x-direction can be determined by multiplying the weight by the cosine of the angle between the ramp and the ground. In this case, the angle is 35 degrees.

Component of gravity in the x-direction = Weight × cos(angle)

Component of gravity in the x-direction = 19.6 N × cos(35°)

Component of gravity in the x-direction ≈ 19.6 N × 0.819

≈ 16.05 N

Therefore, the magnitude of the component of gravity in the x-direction is approximately 16.05 N.

Since the ramp is inclined upwards, the direction of the component of gravity in the x-direction is downwards along the ramp.

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Yes, the center of the Milky Way is the most densely populated area of stars, and is therefore the most likely region to find newly formed stars.

What is the populated?

Populated refers to an area that has a large number of people residing in it. It is usually used to describe cities, towns, or other densely populated areas. Populated areas usually contain a variety of services and infrastructure to support their populations, such as schools, hospitals, transport links, and other amenities. Populated areas usually have higher rates of crime, pollution, and other problems associated with increased human activity.Populated refers to an area that has a high density of people living in it. It is usually used to describe cities and towns, but can also describe smaller areas, like neighborhoods.

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Friction affects the work done by machines by reducing the mechanical advantage of that machine.

MA = \(F_{o}\) / \(F_{i}\)

MA = Mechanical advantage

\(F_{o}\) = Output force

\(F_{i}\) = Input force

Mechanical advantage is the ratio of output force to input force in a system.

According to law of conservation of energy, input energy is equal to output energy. It is true in the machines also but some of the output energy is not necessarily asked of the machine. That energy which is not useful is heat produced due to friction.

Therefore, friction affects the work done by machines by reducing the mechanical advantage of that machine.

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Given

The electric flux is

Radius of the sphere,

To find

a. The flux through a gaussian sphere with radius of 29.0 cm.

b. The magnitude of the charge

Explanation

a. Since the gaussian sphere covers the same charge so the electric flux through both the sphere will be same.

Thus the required flux is

b.

The magnitude of the charge is

Conclusion

a. The flux is

b. The charge is

Answer:

with teamwork

Explanation:

you need to use team work so the right answer is C