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Answer:

In an inductive circuit, when frequency increases, the circuit current decreases and vice versa.

Explanation:

The potential energy stored in the cylindrical capacitor when a potential difference of 8 V is applied between the inner and outer cylinders is approximately 5.0912 × 10^(-10) J

To find the potential energy stored in the cylindrical capacitor, we first need to calculate the capacitance. For a cylindrical capacitor, capacitance (C) is given by the formula:

C = (2 * π * ε₀ * L) / ln(b/a),

where ε₀ is the vacuum permittivity (approximately 8.854 × 10^(-12) F/m), L is the common length of the cylinders, a is the radius of the inner cylinder, and b is the radius of the outer cylinder.

Plugging in the values given in the problem, we get:

C = (2 * π * 8.854 × 10^(-12) F/m * 0.16 m) / ln(0.014 m / 0.008 m).

Now, calculate the capacitance:

C =1.591 × 10^(-11) F.

Next, we will find the potential energy (U) stored in the capacitor using the formula:

U = 0.5 * C * V^2,

where V is the potential difference applied between the inner and outer cylinders.

Plugging in the values, we get:

U = 0.5 * 1.591 × 10^(-11) F * (8 V)^2.

Finally, calculate the potential energy stored:

U =5.0912 × 10^-10 J.

So, the potential energy stored in the cylindrical capacitor when a potential difference of 8 V is applied between the inner and outer cylinders is approximately 5.0912 × 10^(-10) J.

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The S.I units of K so that the equation Velocity = K × density is dimensionally correct is M^-1.L^3.T^-1 [L^3.M^-1.T^-1]

The most extensively used system of measuring in the world is the International System of Units, sometimes known as the SI system and abbreviated SI in all languages. It is the current version of the metric system.

Attached in this answer is the straightforward solution of the question and this shows the dimensional correctness needed after the equation Velocity = K × density has been solved,.

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Answer:

F=200 N

a=10m/s2

F=ma

m=F/a=200/10=20m

Explanation:

The speed of the shark after it swallows the fish is calculated using the conservation of momentum principle. The total momentum before the collision is 5 kg * 1 m/s + 1 kg * 4 m/s = 9 kg * m/s. The total momentum after the collision is 5 kg * v, where v is the speed of the shark after the collision. Therefore, v = 9/5 m/s = 1.8 m/s. Thus, the speed of the shark after it swallows the fish is 1.8 m/s.

The speed of the shark after it has swallowed the 1-kg fish swimming toward it at 4 m/s is 3 m/s. This can be determined by conservation of momentum. Momentum is a vector quantity, meaning that the direction of the momentum must also be taken into account.

In this situation, the momentum of the shark before it swallows the fish is 5 kg⋅m/s due to its velocity of 1 m/s. After the shark has eaten the fish, the momentum is 6 kg⋅m/s due to the addition of the fish's momentum of 4 kg⋅m/s. Since momentum is conserved, the momentum of the shark after eating the fish is the same as the momentum of the shark before eating the fish. Since the mass of the shark does not change, the velocity must change to balance out the difference in momentum. This means that the velocity of the shark after eating the fish is 3 m/s.

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The weight of person on the moon can be given as,

Substitute the known values,

Thus, the weight of person on the moon is 18.7 N,

As per the problem, the charge is of 2.5μC, moving in magnetic field \(3\times10^{2}\) T and having velocity \(5\times 10^{3}\) m/s, the force comes out to be 3.75N

Magnetic force is the force experienced by the object inside the magnetic field or flowing current across the conductor. This force is caused due to the movement of charges.

The force exerted is magnetic force which is given as,

\(F= QVBsin\theta\)

here,

Q= charge

v= velocity

B= Magnetic field and

\(\theta\)=Angle of object from magnetic field

\(F=2.5\times10^{-6} \times 5\times10^{3} \times3\times10^{2}\times sin90\)

\(F=3.75N\)

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(1.) The Phenomena of Refraction Occurs when a Ray (Here Light) enters a Relatively Denser or Rarer Medium and Due to the Change in Density, the Speed of the Incident Ray Decreases or Increases Respectively.

(2.) If a light ray projected through a diamond, the light would refract drastically.

The ball hits the floor approximately 4.733 meters horizontally from point A.The horizontal distance from point A where the ball hits the floor can be determined using the principles of conservation of mechanical energy.

First, we calculate the potential energy of the ball at point A using the formula PE = mgh, where m is the mass of the ball (0.3 kg), g is the acceleration due to gravity (approximately 9.8 m/s²), and h is the height (5.9 m). Substituting the values, we find the potential energy at point A is 0.3 kg × 9.8 m/s² × 5.9 m = 17.307 J.

Next, we calculate the potential energy of the ball at the horizontal section using the same formula. The height at this point is h = 1.9 m. Substituting the values, we find the potential energy at the horizontal section is 0.3 kg × 9.8 m/s² × 1.9 m = 5.454 J.

Since the ball rolls smoothly without any loss of energy due to friction, the potential energy lost from point A to the horizontal section is equal to the kinetic energy gained. Therefore, the kinetic energy at the horizontal section is 17.307 J - 5.454 J = 11.853 J.

We can now use the formula for kinetic energy, KE = (1/2)mv², where v is the velocity of the ball. Rearranging the formula, we find v = √(2KE / m). Substituting the values, we find v = √(2 × 11.853 J / 0.3 kg) ≈ 7.745 m/s.

Finally, we can calculate the horizontal distance traveled by the ball using the formula d = v × t, where t is the time taken for the ball to reach the horizontal section. The time can be found using the equation h = (1/2)gt². Rearranging the formula, we find t = √(2h / g). Substituting the values, we find t = √(2 × 1.9 m / 9.8 m/s²) ≈ 0.611 s.

Multiplying the velocity by the time, we get d = 7.745 m/s × 0.611 s ≈ 4.733 m.

Therefore, the ball hits the floor approximately 4.733 meters horizontally from point A.

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His final velocity at the end of the 2.6 seconds will be  25.48 m/s

given

time = 2.6 seconds

initial velocity = u = 0

acceleration = acceleration due to gravity = 9.8 \(m/s^{2}\)  (since , it is a free fall )

final velocity = ?

using kinematics equation

v = u + at

v = u - g*t

v = - 9.8 * 2.6 = - 25.48 m/s

His final velocity at the end of the 2.6 seconds will be  25.48 m/s in downward direction

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The molar mass of the unknown gas is approximately 44.07 g/mol. The molar mass of the unknown gas can be calculated using Graham's law of effusion, which states that the rate of effusion of a gas is inversely proportional to the square root of its molar mass.

By using the given data, we can set up a proportionality equation where the ratio of the rates of effusion for the two gases (unknown gas and nitrogen gas) is equal to the square root of the ratio of their molar masses.

The equation can be written as:

Rate of effusion of nitrogen gas / Rate of effusion of unknown gas = √(Molar mass of unknown gas / Molar mass of nitrogen gas)

Substituting the given values, we get:

48 s / 63 s = √(Molar mass of unknown gas / 28 g/mol)

Simplifying and solving for the molar mass of the unknown gas, we get:

Molar mass of unknown gas = 28 g/mol x (48/63)^2 = 20.6 g/mol

Therefore, the molar mass of the unknown gas is approximately 20.6 g/mol.

In explanation, the effusion experiment measures the rate of gas escaping through a small opening in a container. The unknown gas is compared to nitrogen gas, which has a known molar mass of 28 g/mol. By using Graham's law of effusion, we can calculate the molar mass of the unknown gas. The equation relates the rate of effusion of each gas to its molar mass, and by setting the two ratios equal, we can solve for the unknown molar mass.

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Answer:

Correct option is A)

Weight on earth = 600N

Let g= 10m/s2 on earth

Mass on earth = 10600=60 kg

Now, since mass is a constant quantity so, it will remain 60 kg on the moon also.

Now, weight on moon = mg′

m= mass =60 kg

g′ = acc. due to gravity on moon = 61th the value on earth

So, Weight on moon = 61th of the weight on earth 

⇒ Weight on the moon =600×61=100 N

Answer:

Explanation:

Find the diagram of the scenario in the attached file.

From the diagram, the weight = mass * acceleration due to gravity

mass of sled = 30.0kg

acc. due to gravity = 9.81m/s

weight of the sled = 30.0*9.81

weight of the sled = 294.3N

The normal reaction force R in the diagram will be gotten by resolving the 12N force along the vertical

Ry = 12sin45°

R = 12 * 1/√2

R = 12√2/√2

R = 6√2 N

R = 8.49N ≈ 9.0N

The normal force exerted on the sled is approximately is 9.0N

Get the acceleration

Using the formula \(\sum Fx = ma_x\) where;

m is the mass of the sled = 30.0kg

\(a_x\) is the acceleration of the sled

\(\sum Fx = 8 + 12cos45^0\\\sum Fx = 8 + 12(0.7071)\\\sum Fx = 8 + 8.49\\\sum Fx = 16.49N\)

Substitute into the formula;

\(a_x = \frac{\sum Fx }{m} \\ a_x = \frac{16.49}{30}\\ a_x = 0.55 m/s^2\)

Hence the acceleration of the sled rounded to the nearest hundredth is 0.55m/s²

The time it takes for the spaceship to travel between the planets as measured by someone on the spaceship is approximately 7.18 years, according to the theory of relativity.

This is shorter than the time measured by an observer in Earth's rest frame, which is consistent with the phenomenon of time dilation predicted by the theory of relativity.

According to the theory of relativity, the passage of time is relative and depends on the observer's motion. This means that time can appear to pass differently for observers in different reference frames. In this problem, we are given the time it takes for a spaceship to travel between two planets as measured in Earth's rest frame, and we need to find the time it takes as measured by someone on the spaceship.

Let's start by using the time dilation formula, which relates the time interval Δt observed by an observer in a stationary reference frame to the time interval Δt' observed by an observer in a moving reference frame:

Δt' = Δt / γ

where γ is the Lorentz factor, given by:

γ = 1 / √(1 - v^2/c^2)

where v is the velocity of the moving reference frame (the spaceship, in this case), and c is the speed of light.

In this problem, we are given that the spaceship is traveling at 0.8c, so we can calculate γ as follows:

γ = 1 / √(1 - v^2/c^2) = 1 / √(1 - 0.8^2) ≈ 1.67

Now, we can use the time dilation formula to find the time interval Δt' as measured by someone on the spaceship:

Δt' = Δt / γ = 12 y / 1.67 ≈ 7.18 y

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Answer:

I guess that you want to calculate the averae time that passes since you "fire" the laser, and you see the reflection.

We know that:

Distance = Time*Speed

Distance/speed = time.

In this case we have:

Distance = 385,000km

Speed = 3x10^8m/s

First, there are two corrections:

1) The distance to the moon is traveled two times, so the actual distance would be:

Distance = 2*385,000km = 770,000km

2) Both quantities should be written in the same units, so we can write the speed in kilometers:

We know that:

1km = 1000m

Then 3x10^8 m/s = (3x10^8/10^3) km/s = 3x10^(8 - 3) km/s = 3x10^5 km/s

Now we can solve the equation:

Time = 770,000km/(300,000 km/s) = 2.57 seconds.

Answer:

D

Explanation:

Ede vech 7 bends aa ess krke 7 carbon aa jai Carbon de jada koi hor laga hove tah oh lekna Carbon de jagha

Explanation:

In celestial mechanics, escape velocity or escape speed is the minimum speed needed for a free, non-propelled object to escape from the gravitational influence of a primary body, thus reaching an infinite distance from it. It is typically stated as an ideal speed, ignoring atmospheric friction.

I hope you help :)

Answer:

Landform A.

Explanation:

Coastlines are created by wind and water erosion. The coast, also known as the coastline or seashore, is defined as the area where land meets the sea or ocean, or as a line that forms the boundary between the land and the ocean or a lake.  The picture/graph associated with this question is attached.

Answer:

Landform A.

Explanation:

Closed environment refers to the limited air transfer that takes place once the station has been launched.

This is an environment which has little or no interference with the atmosphere.

Launching of station in a closed environment will help prevent damages done as a result of exposure to radiations etc.

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Copernicus's theories, including the heliocentric model of the solar system, gained widespread scientific acceptance during his lifetime. They challenged the prevailing geocentric model and proposed that the Sun is at the center of the solar system.

Nicolaus Copernicus was a Polish astronomer who proposed the heliocentric model of the solar system. His theory stated that the Sun is at the center, and the planets, including Earth, revolve around it. This theory challenged the prevailing geocentric model, which placed the Earth at the center of the universe.

Copernicus's book, 'De Revolutionibus Orbium Coelestium' (On the Revolutions of the Celestial Spheres), published in 1543, presented his heliocentric theory. In this book, he provided mathematical calculations and observations to support his ideas. His work laid the foundation for modern astronomy and had a profound impact on scientific thought.

During Copernicus's lifetime, his theories gained widespread scientific acceptance. However, they also faced opposition from some religious and academic authorities who held onto the geocentric model. Despite the opposition, Copernicus's ideas continued to spread and were further developed and supported by later astronomers, such as Johannes Kepler and Galileo Galilei.

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Nicolaus Copernicus (1473-1543) was a Polish astronomer who proposed the heliocentric theory, which posited that the sun, rather than the earth, was the center of the universe, and that the planets, including the earth, orbited the sun.

Copernicus's theories gained widespread scientific acceptance during his lifetime due to a number of factors.Copernicus's theories were met with resistance by some at first, as they contradicted the Aristotelian worldview that was prevalent at the time.

However, Copernicus's theories gained acceptance among his contemporaries due to a variety of factors.First, Copernicus was not the only astronomer to propose a heliocentric model of the universe. Aristarchus of Samos had proposed such a theory over a thousand years earlier, and other astronomers such as Nicholas of Cusa had also suggested similar models.

Second, Copernicus's theories were supported by empirical observations. Copernicus was not only an astronomer but also a mathematician and his extensive calculations demonstrated that the heliocentric model could explain the movements of the planets with greater accuracy than the geocentric model.Third, Copernicus's theories were more elegant than the Ptolemaic model.

In the Ptolemaic model, the planets move in complex epicycles, or circles within circles, in order to explain their movements. Copernicus's model, on the other hand, used simple circular orbits, making it more aesthetically pleasing.

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Answer:

if we ignore air resistance .. which might slow her down a lot towards the end of the 7 seconds.. but we will just ignore that for this question

Explanation:

then V=Vo+a*t

Vo=0

V=a*t

V=9.8(7)

V=68.6 m/s  just a little over 150 MPH.. but.. I think terminal velocity is close to 120... soo hmm maybe about that fast... but that with air resistance.. so this problem depends a lot on if you're going to ignore that

Explanation:

because the boy has larger surface area due to which he offers the larger air resistance which decreases the acceleration so, he will fall towards the earth's surface approximately with constant velocity.

Answer:

100 cm away from you

Explanation:

Found a good example demonstrating this problem I think:

Answer: When a car is struck by lightning, the resulting electric field inside the car is zero.

Explanation:

Answer:

All cells come from pre-existing cells

Explanation:

Rudolf Virchow, a German Physician, stated the theory that all cells arise from pre-existing cells. He used this theory to explain disease pathology at the cellular level. His work helped clarify that diseases occur not at tissue or organ level, but at the cellular level. This resulted in more accurate diagnosis of diseases by other scientists.

His legacies includes being among the first to use animals in his research, first to name numerous diseases and also the creation of many medical terms still in use today.

fastest is mercury and slowest is Neptune

Explanation:

this answer is right

Answer:

fastest > Mercury

slowest > Venus

Answer:

5 Components of Physical Fitness

Cardiovascular Endurance.

Muscular Strength.

Muscular endurance.

Flexibility.

Body Composition.

Explanation:

The reason that the shape of a thermometer is prismatic is to refract the maximum amount of light towards its base, allowing the Mercury inside it to shine. It makes it easier to take readings.

Answer:

the equilibrant is equal in magnitude but opposite in direction.

Explanation:

In vector algebra, a resultant vector is a single vector that have the same effect as the effect of the net or algebraic sum of two or more vectors.

A resultant vector arises from finding the adding multiple vectors together.

When a group of vectors is replaced by a resultant vector, in order to keep the system of vectors at equilibrium, there is another vector which has the same magnitude as the resultant vector but acting in opposite direction to the resultant vector. This vector is called the equilibrant.