A) How do the sources of electric fieids and magnetic fields differ? B) How does the nature of electric fields differ from the nature of magnetic fields?

The chemist's guide or encyclopedia is another name for the periodic table.

Periodic table is a tabular arrangement of elements in the form of a table. In the periodic table, elements are arranged according to the modern periodic law which states that the properties of elements are a periodic function of their atomic numbers.

It is called as periodic because properties repeat after regular intervals of atomic numbers . It is a tabular arrangement consisting of seven horizontal rows called periods and eighteen vertical columns called groups.

Elements present in the same group have same number of valence electrons and hence have similar properties while elements present in the same period show gradual variation in properties due to addition of one electron for each successive element in a period.

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The mutual inductance between the coils is 6.25μH. the coefficient of coupling between the coils is approximately 0.447.

The mutual inductance between the coils can be determined using the formula:M = (Δφ_Y) / (N_X * ΔI_X)
Where M represents the mutual inductance, Δφ_Y is the change in flux in coil Y, N_X is the number of turns in coil X, and ΔI_X is the change in current in coil X.
Plugging in the values given, we have: M = (5mWb) / (200 * 4A)

M = 5mWb / 800A

M = 6.25μH. Therefore, the mutual inductance between the coils is 6.25μH.

(b) The coefficient of coupling (k) can be calculated using the formula:

k = M / √(L_X * L_Y)

Where k represents the coefficient of coupling, M is the mutual inductance, L_X is the self-inductance of coil X, and L_Y is the self-inductance of coil Y.
Substituting the given values: k = (6.25μH) / √((80mH) * (60mH))

k = 6.25μH / √(4.8mH^2)

k ≈ 0.447. Therefore, the coefficient of coupling between the coils is approximately 0.447.

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The maximum height of the ball is approximately 6.096 m and the work done by gravity is -4.95 J.

Given information,

m = 0.071 kg

V₀ = 11 m/s

(a) Finding the maximum height:

The initial kinetic energy of the ball is converted into potential energy at its maximum height.

Initial kinetic energy = Potential energy at maximum height

(1/2)mv₀² = mgh

(1/2)(0.071 kg)(11 m/s)² = (0.071 kg)(9.8 m/s)h

h = (0.5)(11²)/(9.8) ≈ 6.096 m

Part (b) Calculating the work done by gravity:

The work done by gravity during the ball's flight to its maximum height is equal to the change in potential energy. Since the gravitational potential energy is defined as zero at the initial height, the work done by gravity is equal to the negative of the potential energy at the maximum height.

Wg = -mgh

Wg = -0.071 × 9.8 × 6.096

Wg ≈ -4.95 J

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Your answer would be Device A.

Answer:

Device A because it would use more voltage :D

Explanation:

Answer: Gravity

Explanation:When the only force acting on an object is gravity, so no air resistance. the constant speed that a freely falling object eventually reaches when the resistance of the medium through which it is falling prevents further acceleration.

Answer: It is gravity!

Explanation:

Answer:

Explanation:

12

Answer:

Its B

Explanation:

a p e x

Answer:

The degree of exactness of a measurement is called precision.

:)

To draw a force diagram for a skater moving at a constant speed across frictionless ice, we need to know that:

Force is an influence applied by one object to another that causes it to speed up, slow down, or change shape, while vector is a physical quantity with magnitude and direction.

It can also be represented graphically. To solve this problem, follow the steps below;

Step 1: Identify the forces acting on the skater: The only force acting on the skater is the force of gravity. Therefore, the force diagram will show a single force vector pointing downwards, labeled 'Fg' for force of gravity.

Step 2: Draw a diagram showing the force of gravity acting on the skater.The force diagram will have a single downward-pointing arrow labeled 'Fg' representing the force of gravity. Because the skater is moving at a constant speed across frictionless ice, the force diagram shows that there is no opposing force to cancel out the force of gravity. Therefore, the net force acting on the skater is equal to the force of gravity.

The force diagram looks like this:

Answer: A force diagram for the skater moving at constant speed across frictionless ice is shown below:

FORCE: It is an influence applied by one object to another that causes it to speed up, slow down, or change shape.

VECTOR: It is a physical quantity with magnitude and direction. It can also be represented graphically.

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Answer:

Theres 2 meanings first is:

the action or process of registering or of being registered.

The other one is:

a combination of stops used when playing the organ.

The meaning of registration is the action of process of registering to some applications or websites which includes some terms and conditions also.

Registration is the process or action of registering into a website or application or to any institute through online or offline mode. By registering we are giving some personal and professional details as per the requirements of the source which need us to be registered.

For example, if we are applying for a central examination, we have to register our name and details in the official website of the examination board.

The registration process bring us some terms and conditions which we can apply or accept to continue the registration process. After successful registration we can have an acknowledgement for the action.

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Answer:

quarte embri Oslo

Explanation:

Answer:

i think it is 9

Explanation:

The combined momentum after the collision is M * v units, where M represents the combined mass of the putty and the bowling ball, and v represents their final velocity.

When the piece of putty moving with 1 unit of momentum strikes and sticks to the initially stationary heavy bowling ball, the law of conservation of momentum applies. According to this law, the total momentum before the collision is equal to the total momentum after the collision.

Before the collision, the momentum of the putty is 1 unit (as given), and the momentum of the bowling ball is 0 since it is initially at rest. Therefore, the total momentum before the collision is 1 + 0 = 1 unit.

After the collision, the putty sticks to the bowling ball, and they move together as a combined system. Let's assume the combined mass of the putty and the bowling ball is M, and the final velocity of the combined system is v.

The momentum of the combined system after the collision is the product of the total mass and the final velocity: M * v. Since the putty sticks to the bowling ball, the final velocity of the combined system will depend on the masses of the putty and the bowling ball and the conservation of momentum equation.

Therefore, the combined momentum after the collision is M * v units, where M represents the combined mass of the putty and the bowling ball, and v represents their final velocity.

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Ignoring the atmospheric pressure, 45 percentage of the mass will be submerged if a 0.3-kg object with half the density of human fatty tissue is placed in water.

How does the weight of the displaced water compare to the buoyant force acting on a submerged object?

The weight of the fluid displaced determines the buoyant force acting on a submerged item. By comparing an object's mass in air and its effective mass when submerged in water (density = 1 gramme per cubic centimetre), this concept can be used to determine the volume and, consequently, the density of an irregularly shaped object.

Percentage of the mass will be submerged will be equal to (density of object /density of fluid)*100%

Density of object is 0.45kg/L

Density of fluid is 1kg/L

Percentage of the mass will be submerged will be 0.45/1 *100% i.e. 45%

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The water can transfer heat to your arm more quickly than the air when  we heat an oven to 400 f and boil a pot of water.

Heat is defined in thermodynamics in a way that is significantly different from how we typically use the word. Heat is the thermal energy that is transmitted when two systems with different surface temperatures come in contact. Heat is denoted by the letters q or Q and is quantified in joules.

Since heat is defined in the context of a process that allows energy to be transferred, it is occasionally referred to as a process quantity. While the heat that a hot cup of coffee imparts to your hand may be discussed, the heat that the cup of coffee itself holds is not. Heat is yet another notable characteristic.

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Red giants are cooler and more luminous compared to main sequence stars due to their larger size and lower surface temperatures.

The comparison of temperature and absolute magnitude between red giants and main sequence stars can be explained as follows:

Red giants are cooler and more luminous than main sequence stars. The temperature of red giants is lower because they have expanded and cooled during their evolutionary process.

Their temperatures typically range from 3,000 to 4,000 Kelvin, resulting in a reddish appearance. Main sequence stars, on the other hand, have higher temperatures, ranging from 5,000 to 6,000 Kelvin, giving them a yellow-white appearance like our Sun.

In terms of absolute magnitude, red giants are more luminous than main sequence stars because their larger size enables them to produce more light, despite having a cooler surface temperature.

The absolute magnitude of red giants can be thousands of times greater than that of main sequence stars.

In summary, red giants are cooler and more luminous compared to main sequence stars due to their larger size and lower surface temperatures.

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Answer:

Explanation:

ave speed is always (frequency) x (wavelength)

Speed  =  (450 /sec) x (0.52 m)

=      234 m/sec .

Answer:

star

Explanation:

because that is what our sun is.

Answer:

Eukarya

Explanation:

Only organisms of domain eukarya have an organized nucleus

Một đại lượng vectơ là một lực. Đại lượng vectơ là đại lượng có cả độ lớn và hướng, như chúng ta đã dạy trong phần trước. Bạn phải xác định cả độ lớn (kích thước hoặc số) và hướng của lực tác dụng lên một vật thể để mô tả hoàn toàn nó.

Answer:

No, it is not necessary for them to have same mass.

Explanation:

Let both bodies have a density d1 and d2 respectively.

Since their volumes are equal V1 = V2

we know that, https://tex.z-dn.net/?f=%5Cfrac%7Bmass%7D%7Bvolume%7D

Hence, d1 =  and d2 =    

Taking the ratio of densities,we get

This implies that unless the bodies have same densities, the mass of the two bodies will not be same.

The gravitational potential energy of a 9.2 kg mass on the surface of the Earth is equal to zero.

Gravitational potential energy can be defined as the energy exhibited by an object because of a change in its position in a gravitational field.

The gravitational potential energy of two interacting masses is given by

\(U=-G\frac{mM}{R}\)

where m & M are the masses, R is the distance between the masses, and G is the gravitational constant.

The gravitational potential energy of a body at height h can be given by:

\(U = mgh,\)            where m is the mass of the object.

Given, the mass of the object, m= 9.2 Kg

The height from the surface = 0

The gravitational potential energy, U = mgh = 0

Therefore,  the gravitational potential energy of a mass on the surface of the Earth is zero.

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Answer:

The minimum amount that the spring must be compressed if the roller coaster car is to stay on the track is 2.87 meters.

Explanation:

The energy required at the top of the roller coaster loop can be determined by considering the energy of the car, which must be supplied at launch by the giant spring.

The car has potential energy due to its height at the top of the track. It has kinetic energy due to its tangential velocity. In order for the car to stay on the track, the tangential velocity must make the required centripetal acceleration equal to the acceleration due to gravity. Where v is the linear velocity and r is the track radius, the relation to gravity is ...

  g = v²/r   ⇒   v² = rg

Then the kinetic energy at the top of the track is ...

  KE(top) = 1/2mv² = 1/2mrg

And the potential energy at the top of the track is ...

  PE(top) = mgh = 2mgr . . . . . where h is the height of the car, twice the radius

The total energy of the car at the top of the track is then ...

  KE(top) +PE(top) = 1/2mrg +2mrg = 5/2mrg

At the bottom of the track, the energy supplied by the compressed spring will be ...

  PE = 1/2kx² . . . . . where k is the spring constant, and x is the amount of compression

For the spring to supply the necessary total energy, we must have ...

  1/2kx² = 5/2mrg

  x² = (5mrg)/k = 5·(840 kg)(6.2 m)(9.8 m/s²)/(31000 N/m) = 8.232 m²

  x = √8.232 m ≈ 2.87 m

The minimum amount that the spring must be compressed if the car is to stay on the track is 2.87 meters.

__

Additional comment

The velocity of the car at launch is about 17.43 m/s. Its kinetic energy is about 128 kJ. About 102 kJ of that is converted to potential energy at the top of the track, where the velocity slows to about 7.79 m/s.

Answer:

100 feet at 75 mph.

mph expresses the speed or velocity in miles per hour. Speed means rate of change of distance with respect to time.

speed = distance/time

hence, distance = speed x time

The above equation is the relationship between distance, speed and time.

Coney Island is a famous destination known for its amusement parks, boardwalk, and beautiful beach.

One of its most popular attractions is the Thunderbolt, which is a steel roller coaster that gives riders a thrilling experience of high speeds, steep drops, and sharp turns.

The distance and speed at which riders get shot in the air on the Thunderbolt roller coaster are 100 feet and 75 mph, respectively.

This means that the ride launches riders at a height of 100 feet while travelling at a speed of 75 miles per hour.

This can be a scary experience, as the force of gravity can make riders feel like their organs are relocating.

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Answer:

Lens change

Explanation:

by changing the shape of the lens the rays from the clouds will be able to refract correctly in the lens then create the correct upside-down image on the retina.

Hope it helped

PLS mark BRAINLIEST

Answer:

His lenses change shape.

Explanation:

just took the quiz

it is a process in which the structure in solution is in the form of crystal. crystallization of copper sulphate refers to the process in which copper sulphate is heated at minimum temperature.

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For a guitar string that is 1 meter long, the wavelength of the first harmonic is 2 meters.

The formula for calculating the wavelength of the first harmonic for a guitar string is:

Wavelength = 2 * String length / First harmonic

Given that the guitar string is 1 meter long and we want to calculate the wavelength of the first harmonic, we can substitute these values into the formula as follows:

Wavelength = 2 * 1 meter / 1

Wavelength = 2 meters

Therefore, the wavelength of the first harmonic for a guitar string that is 1 meter long is 2 meters.

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a) The maximum height reached by the football is approximately 7.45 meters.

b) The vertical displacement of the football is approximately 10.38 meters.

a) To find the maximum height reached by the football, we can use the kinematic equation for vertical motion:

Δy = V₀y * t + (1/2) * a * t²

Where Δy is the vertical displacement, V₀y is the initial vertical velocity, t is the time, and a is the acceleration due to gravity (-9.8 m/s²).

The initial vertical velocity can be calculated using the given angle of 30.0° and initial speed of 21.2 m/s:

V₀y = V₀ * sin(θ)

Substituting the values, we have:

V₀y = 21.2 m/s * sin(30.0°) ≈ 10.6 m/s

Now, we can substitute the values into the first equation:

Δy = 10.6 m/s * t + (1/2) * (-9.8 m/s²) * t²

To find the maximum height, we need to find the time when the vertical displacement becomes zero. We can solve the equation for t, which gives two solutions. The positive solution corresponds to the time taken to reach the maximum height:

t = (-V₀y ± sqrt((V₀y)² - 4 * (1/2) * (-9.8 m/s²) * 0)) / (2 * (1/2) * (-9.8 m/s²))

Simplifying the equation, we find:

t ≈ 2.02 s (positive solution)

Finally, we can substitute this time back into the equation for vertical displacement to find the maximum height:

Δy = 10.6 m/s * 2.02 s + (1/2) * (-9.8 m/s²) * (2.02 s)² ≈ 7.45 m

Therefore, the maximum height reached by the football is approximately 7.45 meters.

b) To find the vertical displacement of the football, we can use the equation:

Δy = V₀y * t + (1/2) * a * t²

We already know the initial vertical velocity (V₀y = 10.6 m/s) and the time (t = 2.350 s). Substituting these values, we have:

Δy = 10.6 m/s * 2.350 s + (1/2) * (-9.8 m/s²) * (2.350 s)² ≈ 10.38 m

Therefore, the vertical displacement of the football is approximately 10.38 meters.

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The momentum of the brick just before it hits the ground, given that it has a mass of 1.5 Kg is 13.083 Kg.m/s

We'll begin by obtaining the velocity of the brick just before hitting the ground. Details below:

v = u + gt

v = 0 + (9.8 × 0.89)

v = 0 + 8.722

v = 8.722 m/s

Finally, we shall determine the momentum of the brick. Details below:

Momentum = mass × velocity

Momentum of brick = 1.5 × 8.722

Momentum of brick = 13.083 Kg.m/s

This, the momentum of the brick is 13.083 Kg.m/s

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The height of image of the person on the film is determined as 0.267 meters tall.

The height of the image formed is calculated by applying the formula for magnification of lens.

The given parameters;

The height of the image formed is calculated as follows;

(person's height) / (distance from person to hole) = (image height) / (distance from image to hole)

1.9 m / 6.0 m = h' / 0.85 m

h' = (1.9 m / 6.0 m) * 0.85 m

h' = 0.267 m

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The amount of power her legs produce to offset the work done by the force of gravity as she runs up the hill is found to be 3021.28W.

W = Fd is the formula for the amount of work W that a constant force does on an object. It is computed by dividing the force's magnitude by the distance the object travels in the force's direction.

Jessie's mass m = 58Kg

power = F x V;

f = mg

=> 58 x 9.8 => 568.98N

V => d/t

d = 1.35m; t= 0.2541s

V => 1.35/0.2541 = 5.31m/s

Power => 568.98N x 5.31m/s => 3021.28W.

Technically speaking, power is the rate at which work is done whereas energy is the capacity for work (or delivering energy, according to Encyclopedia Britannica). The amount of energy necessary to repeatedly accomplish the same task is the same, but if you want to complete it more quickly, you can exert more power.

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