A 50 cm long center-fed dipole directed along the z direction and located at the origin is excited by a 1 MHz source. If the current amplitude is 10 = 20 A, determine the power density radiated at 2 km along the broadside of the antenna pattern.

Answer:

B 25pa.................................

they are made up of rock and gas

Answer:

Hydrogen and Helium. 75% Hydrogen and 25% Helium.

Explanation:

Answer:

tha

Answer:

Ionosphere

Explanation:

The thermosphere reaches 600 kilometres just above mesosphere and begins immediately above the mesosphere. This layer is where the aurora and satellites appear.

The ionosphere is the comprehensive career of the mesosphere because most of the thermosphere, located 80–400 kilometres just above ground atmosphere.

Auroras — magnificent flowing streaks of light seen in the night sky – appear in this location.

The unit is Newton meter squared per kilogram squared \((N * m^2 / kg^2\)), which is the SI unit of the universal gravitational constant.

To determine the SI unit of the universal gravitational constant (G) using dimensional analysis, we need to consider the equation for the force of attraction between two bodies:

F = G * (\(M1 * M2) / d^2\)

Where:

F is the force of attraction between the two bodies,

G is the universal gravitational constant,

M1 and M2 are the masses of the two bodies, and

d is the distance between the centers of the two bodies.

Let's analyze the dimensions of each term in the equation:

The force (F) has the dimension of force, which is \([M * L * T^-2]\)(mass times length divided by time squared).

The product of the masses (M1 * M2) has the dimension of mass squared, which is [\(M^2\)].

The distance squared (\(d^2\)) has the dimension of length squared, which is [\(L^2\)].

Equating the dimensions on both sides of the equation, we have:

[\(M * L * T^{-2\)] = \(G * [M^2] / [L^2]\)

To balance the dimensions, we need to ensure that the units on both sides of the equation are the same. Therefore, we can conclude that the unit of G must be:

[G] = [\(M^{-1} * L^3 * T^{-2} * M^{-2} * L^{-2}]\)

Simplifying the units, we have:

[G] = \(M^{-1} * L^3 * T^{-2} * M^{-2} * L^{-2}]\)

= \([M^{-1} * L^1 * T^{-2}\)]

So, the SI unit of the universal gravitational constant (G) using dimensional analysis is:

[G] = \(N * m^2 / kg^2\)

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Respuesta:

7,6 Ω

Explicación:

Paso 1: Información dada

Paso 2: Hallar la resistencia (R) a 100 °C

Podemos ver la relación entre la resistencia de un material y la temperatura usando la siguiente ecuación.

R = R₀ (1  + α × ΔT)

R = 6 Ω (1  + 0,00392 °C⁻¹ × (100 °C - 30 °C)) = 7,6 Ω

Answer:

the answer is D metal resting

Explanation:

I just think that because if you treasure can that's physical charge by dropping where you create a physical charge melting and Ice Cube might be 1 but I feel like metal resting is more likely

An electron’s position cannot be known precisely. only its probability of being in a certain location can be known as c.  the electron cloud model.

Electron cloud model was developed in the 1920s by Erwin Schrödinger and Werner Heisenberg, and it is based on the idea that an electron does not have a definite location, but rather exists in a probability distribution around the nucleus of an atom.

In the electron cloud model, the probability of finding an electron in a certain location is represented by a cloud-like shape around the nucleus. The denser the cloud, the greater the probability of finding an electron in that area. This model is different from the Bohr model, which depicts electrons as orbiting the nucleus in fixed, circular paths. The electron cloud model is also different from Einstein's model, which does not specifically address the position of electrons.

In summary, the electron cloud model is the model that describes an electron's position as a probability rather than a precise location. It is different from the Bohr model and Einstein's model, and it is based on the idea that an electron exists in a probability distribution around the nucleus of an atom.

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Answer:

the electron cloud model.

Explanation:

Answer:

mechanical energy is due to the position and the motion of an object  in a system. A projectile moves in a curve. When the object leaves, it has mostly kinetic energy

Explanation:

On a swing, the ride starts with a push, giving you kinetic energy.

When the pendulum swings, its potential energy transforms into kinetic energy.While projectile energy transforms from kinetic energy to potential energy.

Swinging from a pendulum, such as a rope swing or a hanging vine, is more difficult than swinging from a cannonball projectile.

A type of motion in which an item moves along a bilaterally symmetrical, parabolic direction is known as projectile motion.

The path that the item takes is referred to as its trajectory. Projectile motion occurs only when a single force is supplied at the start of the trajectory, after which the only interference comes from gravity.

Because gravity is the sole force acting on a projectile while it is in the air, the total energy does not vary at any point in its travel,

The energy can change forms from kinetic energy, The energy of motion, to potential energy, or from potential energy to kinetic energy.

When the pendulum swings, its potential energy transforms into kinetic energy, which is then converted back to potential energy, which is then converted back to kinetic energy, and so on.

Let's try it with a tire swing as a pendulum to see how it works! All of the swing's mechanical energy is potential energy at its beginning location.

Hence when the pendulum swings, its potential energy transforms into kinetic energy. While projectile energy transforms from kinetic energy to potential energy.

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I suggest that the students move forward with option A.

Test funnels of the same size and material with varying sized openings. This will allow them to determine the optimal size for the opening that will help direct the marble to the launch pad. Once they have determined the optimal size, they can move forward with constructing the funnel with that size opening.

The depth of the rectangular block with 496 kg mass and density 1000 kg/m³ is 0.086 m.

Density, the mass of a material substance per unit volume. The equation for thickness is d = M/V, where d is thickness, M is mass, and V is volume. The most common way to describe density is in grams per cubic centimeter. Water, for instance, has a density of 1 gram per cubic centimeter, while the Earth has a density of 5.51 gram per cubic centimeter.

Thickness can likewise be communicated as kilograms per cubic meter (in meter-kilogram-second or SI units). For instance, the thickness of air is 1.2 kilograms per cubic meter. The densities of normal solids, fluids, and gases are recorded in reading material and handbooks. Density provides a simple method for determining a body's mass from its volume or vice versa; the mass is equivalent to the volume increased by the thickness (M = Vd), while the volume is equivalent to the mass separated by the thickness (V = M/d).

The heaviness of a body, which is for the most part of more reasonable interest than its mass, can be gotten by duplicating the mass by the speed increase of gravity. Additionally, there are tables that list the substances' weight per unit volume; Weight density, specific weight, and unit weight are all names for this quantity. See likewise unambiguous gravity. The term "particle density" usually refers to the number of particles per unit volume rather than the density of a single particle.

Density = mass/volume

1000 = 496/1.3 x 4.4 x depth

depth = 496/1.3x4.4x1000

= 0.086 m

Therefore, the depth of the rectangular block is 0.086 m.

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The reactance of the 9.00 μF capacitor at a frequency of 60.0 Hz is approximately 294.524 ohms.

The reactance (Xc) of a 9.00 μF capacitor at a frequency of 60.0 Hz can be calculated using the formula:

Xc = 1 / (2 * π * f * C)

Where Xc is the capacitive reactance, π is approximately 3.14159, f is the frequency (60.0 Hz), and C is the capacitance (9.00 μF, or 9.00 × 10^-6 F).

Plugging in the values:

Xc = 1 / (2 * 3.14159 * 60.0 * 9.00 × 10^-6)

Xc ≈ 294.524 Ω

The reactance of the 9.00 μF capacitor at a frequency of 60.0 Hz is approximately 294.524 ohms.

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The way to make 3d soft body objects interact pressing against the surface of each other increase friction is given below

The way to make 3d soft body objects interact pressing against the surface of each other increase friction is by:

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Answer:

The chemical equation for photosynthesis is 6CO2+6H2O→C6H12O6+6O2.

Explanation:

Gravity is a vital factor in sustaining life on Earth, affecting the circulation of fluids within organisms, guiding plant growth, shaping animal behavior, and influencing ecosystem dynamics.

Gravity plays a crucial role in sustaining life on Earth, although it is not one of the three factors that are typically discussed in relation to life sustenance (i.e., water, atmosphere, and energy). Gravity is the force that keeps everything on the planet bound to its surface, allowing organisms to maintain their structure and functionality. Without gravity, life as we know it would not be possible.

Gravity influences many aspects of life on Earth. It affects the circulation of fluids within organisms, enabling the transport of nutrients and waste throughout their bodies. It also influences the growth and development of plants by providing a directional force that guides their roots downward and their shoots upward. Gravity even affects the behavior of animals, shaping their anatomy and movement patterns.

Moreover, gravity plays a significant role in Earth's ecosystem by determining the distribution and interactions of organisms. It affects the flow of water in rivers and oceans, creating habitats for diverse aquatic life. It also influences the behavior of tides, which is essential for coastal ecosystems.

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The answer is (A.) The sail is pushing the wind back and slowing down the air. The wind is pushing the sail and the sail pushes the wind back and slows the air down.

As the boat is sailing, the wind will be faster than the boat. This fast wind is obstructed by the sail. That is, the fast wind gets slowed down by the sail because the sail pushes the wind backwards which slows down the wind. This will make the wind push the boat forward thereby accelerating the boat.

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The electric charge of an atom is found by adding the charges carried by its protons and electron.

The mass of an atom is primarily determined by the number of protons and neutrons it contains, since these particles contribute most of the atom's mass. Electrons, which are much lighter than protons and neutrons, contribute only a small fraction of the atom's total mass. Therefore, to determine the mass of an atom, you add the number of protons and neutrons it has.

In a neutral atom, the number of protons and electrons is equal, so the overall electric charge is zero. However, if an atom gains or loses electrons, it becomes charged and is called an ion. If an atom loses electrons, it becomes positively charged (since it has more protons than electrons), while if it gains electrons, it becomes negatively charged (since it has more electrons than protons). Therefore, to determine the electric charge of an atom, you add the charges carried by its protons and electrons.

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A) The current in the solenoid is 0.22 A. B) If the solenoid were doubled, the current would remain the same.

A) The magnetic flux through the solenoid is given by Φ = μ₀n²πr²I, where μ₀ is the permeability of free space, n is the number of turns per unit length, r is the radius of the solenoid, and I is the current.

Solving for I, we get I = Φ/(μ₀n²πr²)

= (1.27x10⁻⁴ Tm²)/(4πx10⁻⁷ TmA⁻¹x372²/m²x(0.179/2)²m²)

= 0.22 A.

B) Doubling the solenoid would double the number of turns per unit length (n) and the radius (r), but the magnetic flux would remain the same.

Therefore, using the same equation as before, we see that the current would remain unchanged, since the increase in n and r would cancel each other out.

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Answer:

Explanation:

A simple pendulum consists of a mass (usually represented as a small object or bob) attached to a string or rod of negligible mass. The mass is free to swing back and forth under the influence of gravity.

In the figure, the point of suspension is denoted by "O," and the mass (bob) is represented by the small circle. The string or rod is represented by the vertical line connecting the point of suspension to the bob.

Amplitude:

The amplitude of a pendulum refers to the maximum displacement or swing of the bob from its equilibrium position. In the figure, the amplitude can be represented by the angle formed between the vertical position and the position of the bob when it swings to its maximum distance on one side. It is usually denoted by the symbol "A."

Effective Length:

The effective length of a pendulum refers to the distance from the point of suspension to the center of mass of the bob. It represents the distance over which the mass swings back and forth. In the figure, the effective length can be measured as the length of the string or rod from the point of suspension to the center of the bob. It is usually denoted by the symbol "L."

It is important to note that the amplitude and effective length of a simple pendulum affect its period of oscillation (the time taken for one complete swing). The relationship between these parameters and the period can be described by mathematical formulas.

Overall, the simple pendulum is a fundamental concept in physics and provides a simplified model for understanding oscillatory motion and the principles of periodic motion.

Answer: The molecules in gases are different from other states of matter

Explanation:

The molecules in gases are different from other states of matter because unlike, for example, a solid, they move around freely and are much more spread apart. A gas can fill up any container, but once the container is unsealed, the gasses will immedietly be let out. Gases can be compressed much more easily than a solid or a liquid.

Answer:

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

\(a = \frac{f}{m} \\ \)

f is the force

m is the mass

We have

\(a = \frac{20}{4} = 5 \\ \)

We have the final answer as

Hope this helps you

The force exerted by the hand on the ball has a mass of 0.06 kg is 0.822 N

The mass of the ball = 0.06 kg

The acceleration of the ball = 13.7 m/s²

In physics, force is defined as:

Pushing or pulling an object with mass changes its velocity. A force is an external factor that can alter the body's state of rest or motion. It has size and direction.

The force exerted on the ball can be found using the formula,

              F = ma

where F is the force

          m is the mass

          a is the acceleration

Let us substitute the known values in the above equation, we get

           F = 0.06 x 13.7

              = 0.822 N

Therefore, the force exerted on the ball is 0.822 N

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The equivalent resistance for the parallel connected resistance will be

\(\dfrac{1}{R_{eq}}=\dfrac{1}{R_1}+\dfrac{1}{R_2}\)

Resistance is a measure of the opposition to current flow in an electrical circuit. Resistance is measured in ohms, symbolized by the Greek letter omega (Ω)

Now if two resistances are connected parallel then the voltage on the resistances will be different and the same current will flow from both resistances.

\(V_{eq}=V_1+V_2\)

\(I_{eq}R_{eq}=I_1R_1+I_2R_2\)

Since \(I_{eq}=I_1=I_2\)

\(R_{eq}=R_1+R_2\)

Hence the equivalent resistance for the parallel connected resistance will be

\(\dfrac{1}{R_{eq}}=\dfrac{1}{R_1}+\dfrac{1}{R_2}\)

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Explanation:

I belive it is 1 or 4

Answer:

I believe the answer is 4

Explanation:

4= none of the above

When the balloon hits the ground, the rubber envelope stretches, storing elastic potential energy; this elastic potential energy is transfigured to the gravitational potential. It is a correct answer.

What is potential energy?

Stored energy that depends upon the relative stand of different parts of a system is called potential energy. A spring has more potential energy when it is stretched.

What is gravitational potential?

A position is equal to the work per unit mass that would be needed to move an item to that position from a fixed reference position is called gravitational potential.

When the balloon hits the ground, the rubber envelope stretches, storing elastic potential energy; this elastic potential energy is transfigured to the gravitational potential. It is a correct answer.

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Answer:

Option C

Explanation:

The answer is option C or "they convert chemical energy from gasoline into kinetic energy." Electric motors usually require a power source for example a car, you put gasoline in that car which is converted into kinetic energy which allows the motor to operate and run, (enabling you to drive the car) the kinetic energy is then used into you run out of gasoline.

Hope this helps.

Answer:

Georges Lemaître  - theorized that the universe had a beginning

Albert Einstein  - huit a model of the inverse haced on relativity

Galileo Galilei  - was the first to use a telescope to observe the planets

Edwin Hubble  - showed that the universe was expanding

Henrietta Swan Leavitt  - demonstrated a method to calculate the distance of celestial bodies

is my choices report if wrong

Galileo Galilei was the first to use a telescope to observe the planets

Albert Einstein built a model of the universe based on relativity

Henrietta Swan Leavitt demonstrated a method to calculate the distance of celestial bodies

Edwin Hubble showed that the universe was expanding

Georges Lemaître theorized that the universe had a beginning

Science is the methodical, empirically-based pursuit and application of knowledge and understanding of the natural and social worlds.

A method of learning about the world is science. Science allows people to participate in the creation of new knowledge as well as use that knowledge to further their goals. It is both a process, a product, and an institution.

Thus, The first person to observe the planets through a telescope was Galileo Galilei.

Based on relativity, Albert Einstein created a model of the universe.

A technique to determine the separation between celestial bodies was demonstrated by Henrietta Swan Leavitt.

Edwin Hubble demonstrated the expansion of the universe

According to Georges Lemaître, the universe had a beginning.

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