A student stands on a bathroom scale in an elevator at rest on the 64th floor of a building. The scale reads 836 n. A. As the elevator moves up, the scale reading increases to 936 n. Find the acceleration of the elevator.

In the Lewis symbol for a chlorine atom, there are 2 paired and 3 unpaired electrons.

A Lewis symbol (also known as a Lewis dot diagram) is a way to represent an element in the periodic table by showing the number of valence electrons in the element. The Lewis symbol consists of the chemical symbol of the element surrounded by dots, where each dot represents a valence electron. The arrangement of dots around the symbol represents the electron configuration of the element in its neutral state. The number of valence electrons can be determined from the position of the element in the periodic table, and the arrangement of dots around the symbol helps to show the reactivity of the element and its ability to form chemical bonds with other elements.

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The domain of IT infrastructure that includes cabling, servers, and wireless access points is known as the Network Infrastructure domain. It is the backbone of the IT infrastructure and plays a crucial role in the efficient functioning of an organization's communication.

The Network Infrastructure domain involves the physical and logical connectivity of the various devices, computers, and servers within an organization. This includes the installation and maintenance of cables, such as Ethernet cables, which are used to connect devices to the network. The servers, on the other hand, are used to store and manage the data and applications required by the organization.

Wireless access points, which are also an important component of the Network Infrastructure domain, provide wireless connectivity to the devices within an organization. They are connected to the network using cables and act as a bridge between the wireless devices and the wired network. Wireless access points support the deployment of wireless networks, which are becoming increasingly popular due to the mobility and convenience they provide.

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Answer:

The dynamic viscosity of the liquid in SI units is 2.79e-2 Pa.s.

Dynamic viscosity can be calculated from the kinematic viscosity and the specific gravity of the liquid as follows:

Dynamic viscosity (μ) = Kinematic viscosity (ν) * Density (ρ)

Given:

Kinematic viscosity (ν) = 3.5e-4 m2/s

Specific gravity (SG) = 0.79

Density (ρ) = SG * Density of water (1000 kg/m3)

Therefore,

ρ = 0.79 * 1000 kg/m3 = 790 kg/m3

And,

Dynamic viscosity (μ) = ν * ρ

= 3.5e-4 m2/s * 790 kg/m3

= 2.79e-2 Pa.s

So, the dynamic viscosity of the liquid in SI units is 2.79e-2 Pa.s.

Dynamic viscosity is a property of a fluid that measures its resistance to flow. It is a measure of the internal friction of a fluid and is related to the fluid's ability to transfer momentum from one point to another. The dynamic viscosity of a fluid is determined by several factors, including its temperature, pressure, and composition. In SI units, dynamic viscosity is usually expressed in Pascal-seconds (Pa.s), also known as the Poise. Dynamic viscosity is an important property in many engineering applications, such as the design of piping systems, the selection of pumps and valves, and the calculation of heat transfer rates in fluid-based systems.

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The electric force exerted by the wire on a proton is 6.89 × 10⁻¹⁰ N.

Given,

Charge per unit length(λ) = 1.95 C/m

And perpendicular distance (r) = 8.14 m

We know that Force exerted by the wire on a charged particle is:

F = qE

Where [tex]E = \frac{\lambda}{2 \pi \epsilon_{0}r}[/tex] (Electric field of an infinitely thin wire)

and q = 1.6 × 10⁻¹⁹ C

So, [tex]F = \frac{q\lambda}{2\pi\epsilon_0r}[/tex]

[tex]\implies F = \frac{1.6 \times 10^{-19}\times 1.95}{2\pi\times 8.85 \times 10^{-12}\times 8.14}[/tex]

⇒ F = 6.89 × 10⁻¹⁰ N

Therefore the electric force exerted by the wire on a proton is 6.89 × 10⁻¹⁰ N.

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The total electric flux through a sphere centered at the point charge is 1.24 x 10⁵ Nm²/C.

The total electric flux through the sphere is the resultant of the electric field due to all the charges existing in the space, and the magnitude is calculated by applying the following formula.

Ф = ( Q ) / ( ε₀ )

where;

Ф =  ( 1.1 x 10⁻⁶ ) / ( 8.8542 x 10⁻¹² )

Ф =  1.24 x 10⁵ Nm²/C

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The given statement 'According to Coulomb's law, charges of larger magnitude interact stronger than those of smaller magnitude' is true.

"According to Coulomb’s law, the force of attraction or repulsion between two charged bodies is directly proportional to the product of their charges and inversely proportional to the square of the distance between them."

Mathematically, it is given as, F = 1/4π∈₀k (q₁q₂/d²)

where, ∈₀ is the permittivity of free space

k is relative permittivity

q₁, q₂ are charges

d is the distance

The law only applies to point charges that are at rest. It is difficult to implement Coulomb’s law where charges are in arbitrary shape because in such cases, we cannot determine the distance between the charges.

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If a negatively charged particle is placed at rest in an 'electric potential field' that increases in the positive x-direction then the particle will B: accelerate in the negative x-direction.

In an electric potential field, a negatively charged particle experiences a force in the direction of decreasing electric potential. The electric potential increases in the positive x-direction, meaning the electric potential decreases in the negative x-direction. Therefore, a negatively charged particle placed in this field will experience a force in the negative x-direction and thus accelerate in the negative x-direction.

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Velocity can fluctuate in magnitude, direction, or both because it is a vector. Therefore, acceleration is a change in either direction or speed, or both.

Cosmic rays are subatomic particles that have been accelerated to extremely high energies in active galactic nuclei and supernovas, which are massive stars that explode.

Understanding the mechanisms that accelerate cosmic rays is crucial because these rays contain extremely invasive radiation that can harm spacecraft electronics.

The same direction as the change in velocity is the one in which acceleration is a vector. Velocity can fluctuate in magnitude, direction, or both because it is a vector.

Therefore, Velocity can fluctuate in magnitude, direction, or both because it is a vector. Therefore, acceleration is a change in either direction or speed, or both.

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laser doppler flowmetry uses an infrared laser to measure blood flow velocity. compared to ultrasound, the percent change in frequency using this technique is a)smaller.

What is laser Doppler flowmetry?

Laser Doppler flowmetry (LDF) is a non-invasive method for the continuous measurement of microvascular blood perfusion in a variety of tissue types. Blood perfusion (blood flow) is estimated by illuminating a tissue sample with single-frequency light and processing the frequency distribution of the backscattered light.

What is the principle of Doppler flow meter?

A Doppler ultrasonic flow meter uses a transducer to emit an ultrasonic beam into the stream flowing through the pipe. For the flow meter to operate, there must be particulates, such as solid particles or air bubbles, in the stream to reflect the ultrasonic beam.

What wavelength is laser Doppler flowmetry?

In normal skin, and with laser Doppler instruments with a probe with standard fiber separation (0.25 mm) and 780 nm wavelength, the measuring depth is 0.5–1 mm and the measurement volume is approximately 1 mm3.

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Large quantities of dust from the volcanic eruption's surrounds are released into the atmosphere. Materials like volcanic ash and gases also accompany eruptions.

These gases make a significant contribution to the atmospheric greenhouse gas inventory.

Volcanoes' explosivity during eruptions is mostly caused by the gases inside of them. A volcano might be more explosive the more gases it contains. There is a lot of carbon dioxide, methane, etc. in these gases. They are overwhelmingly greenhouse gases.

An eruption is also accompanied by dust particles. The wind has the ability to hang this particles for a long time in the sky.

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The smoke is drawn to and out of the drivers window because the car is in the motion.

In physics, motion is a function of a body's position or orientation over time. Translation is defined as movement along a line or a curve. Rotation is a motion that modifies a body's orientation. In all scenarios, the acceleration and directed speed of every point on the body are equal (time rate of change of velocity). Motion that involves both translation and rotation is the most generic type. Every movement has a frame of reference to which it is relative. A body is not in motion when it is said to be at rest; rather, it is being characterized in relation to a frame of reference that is moving with the body.

When the car is in the motion, the air outside the car is moving with velocity relative to that of car.The motion of the car is creating a pressure imbalance with the outside air.The air moving around the car has less pressure than the air inside the car, so a vacuum is created when you open a window, drawing the air out.

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Yes, when ever you add or subtract quantities they must have the same units or dimensions.

In physics measurements apart from units and units, there are also what are referred to as dimensions.

Definition dimensions in mathematics are measurements of length, width, or height that are extended in a certain direction. Where every form of matter on earth has dimensions, including physical quantities. Dimensions show what basic quantities are used in a measurement. Thus, dimensions in physics are a way of writing quantities that show the constituent quantities. Dimensions in measurements do not consider numerical values (quantities).

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Three things learned about the Milky Way galaxy are that it has billions of stars, has a halo, is composed of dust and gas

The galaxy is actually a collection of various kinds of stars with their respective solar systems. The Milky Way galaxy has a cost of about 200 to 400 billion stars. However, the most that humans see are only about 2,500 stars.

The Milky Way galaxy is composed of dust and gas. This material is the material that makes up the luminous material of the Milky Way Galaxy, which is about 10 to 15 percent. The thickness of this dust can deflect visible light. However, infrared light can pass through this dust.

The Milky Way Galaxy has a Halo, which is a halo of light within the Milky Way Galaxy.

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The orbit with r_max fixed but l very small is a parabola. The semimajor axis a is r_max.

An orbit is the path of a celestial object or spacecraft around a star, planet, or moon. The path is usually elliptical in shape, and a celestial object's orbital speed varies depending on its distance from the central body. An object's orbital period, or the amount of time it takes to complete one full orbit, is determined by the size of its orbit and its distance from the central body. The gravitational force of the central body affects the path of an object's orbit, and the orbital speed of the object is determined by the gravitational force and the distance of the object from the central body.

Using equations (8.48) and (8.50), we can rewrite the eccentricity of the elliptical orbit as:

\epsilon = \sqrt{1 + \frac{2l^2}{\mu r_{max}^2}}

In the limit l --> 0, the eccentricity approaches 1 and the distance of closest approach r_min approaches zero.

The orbit with r_max fixed but l very small is a parabola. The semimajor axis a is r_max.

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The correct option is (b) reveals information about ourselves. The physical environment (for example, our living spaces) that we, as individuals, create "reveals information about ourselves".

The physical environment can be used to reveal our thoughts, emotions and beliefs. It can also be used to reveal our hidden secrets and mysteries. To be effective in life, we must be aware of the physical environment in which we live.

This awareness can be used to our advantage or against us. For example, if we don't know the floor plan of our home, we may not be aware of the potential dangers that may lurk there. Likewise, we are less likely to respond appropriately to an uncomfortable situation when we are unaware of the emotions around us.

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They both have the same displacement-  is the most accurate description of their motion.

A displacement is a vector in geometry and mechanics that has a length equal to the shortest distance between a point P's initial and final positions.

It calculates the length and angle of the net motion, or total motion, in a straight line from the starting point to the destination of the point trajectory. The translation that links the starting point and the ending point can be used to spot a displacement.

As both Michael and Officer Wilson have same initial position and final position, they both have the same displacement.

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The length of the tungsten wire is 13.7 cm.

To find the length of the tungsten wire, we need to first find its volume. We know the density of tungsten, which is 19.25 g/cm³, and the mass, which is 39.7 g. We can use the formula for the volume of a cylinder, which is πr²h, where r is the radius and h is the height (which is equal to the length of the wire in this case).

First, we'll find the volume:

V = πr²h

V = π (3.79 mm)²h

V = 11.05 mm³h

Next, we'll convert the volume to cubic centimeters (cm³):

11.05 mm³ = 11.05 x 10^-9 cm³

Now that we have the volume in cm³, we can use the density formula to find the mass:

m = ρV

m = 19.25 g/cm³ x 11.05 x 10^-9 cm³

m = 0.2103 g

Finally, we'll use the mass and density to find the length:

m = ρV

0.2103 g = 19.25 g/cm³ x V

V = 0.2103 g / 19.25 g/cm³

V = 0.0109 cm³

And since the volume is equal to πr²h, we can find the height (which is the length of the wire) by rearranging the formula:

V = πr²h

h = V / πr²

h = 0.0109 cm³ / π (3.79 mm)²

h = 13.7 cm

So the length of the tungsten wire is 13.7 cm.

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Forecasting involves making predictions about the future. Forecasts are often predicated on historical data.

Because the future is uncertain, forecasts must often be revised, and actual results can vary greatly. Making future forecasts is a part of forecasting.

Companies utilize forecasting in finance to predict earnings or other statistics for upcoming periods. Forecasts are used by traders and analysts in value models, to time trades, and to spot trends.

Historical data is frequently the foundation of forecasts. Forecasts frequently need to be updated since the future is unpredictable, and actual outcomes can differ substantially.

Therefore, Forecasting involves making predictions about the future. Forecasts are often predicated on historical data.

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The Sun is about the size of an orange, so the Earth would be about the size of a grape compared to it. This is because the Earth is much smaller than the Sun.

The Sun is about the size of an orange, so the Earth would be about the size of a grape compared to it. This is because the Earth is much smaller than the Sun, with a diameter of around 7,917 miles, while the Sun has a diameter of around 864,000 miles. To put this into perspective, the Earth would be a tiny speck of dust compared to the size of the orange Sun. Thus, the Earth would be about the size of a grape if the Sun was a typically sized orange.

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The fill in the gap answer is given below:

   From there, it is pumped to the lungs through two vessels called the pulmonary arteries.

   These arteries are an exception to the rule since they carry oxygenated blood to the lungs.

   Gas exchange occurs in the lungs at the alveoli.

   Blood enters the left atrium of the heart.

Blood must be distributed to all of the body's cells (1). Oxygen first enters the body when inhale (2). Oxygen is carried by red blood cells (3). Deoxygenated blood travels through the vena cava (4) to the right atrium (5) of the heart. It first enters the right ventricle (6), and is pumped to the lungs for gas exchange (7), where oxygen is taken in and carbon dioxide is expelled.     From there, it is pumped to the lungs (8) through two vessels called the pulmonary (9) arteries. 10 Oxygenated blood to the Body(11), 12 Gas exchange occurs in the lungs at the Alveoli 13,    From the lungs, 14. oxygenated blood travels through the 15. pulmonary veins, and enters the 16. left side of the heart. This is also an exception to the rule as these veins carry 17. oxygenated blood to the heart. 18. Oxygenated blood first enters the 19. left atrium, then moves to the 20. left ventricle, Then it is pumped out through the aorta (21) onto the body (22) and distributed to the cells body (23).

Blood is a bodily fluid that circulates through the circulatory system of an organism, carrying oxygen, nutrients, hormones, and waste products to and from the cells. Blood is made up of red and white blood cells, platelets, and plasma. Red blood cells are responsible for carrying oxygen, while white blood cells help the body fight infections and diseases.

Therefore,  Platelets play a role in blood clotting, and plasma is the fluid portion of blood that contains proteins and other substances. Blood plays a vital role in maintaining the health and well-being of an organism.

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See transcribed text below

Directions: Summarize how blood travels throughout the body using the following terms

and the sentence frames below. Each word should be used just once.

capillaries blood  venacava left  oxygen heart  upper

eftatrium  oxygenated  lungs  pulmonary  right atrium  deoxygenated

red blood cells  inhale  pulmonary  right ventricle lungs lower  Gas exchange

ventricle  oxygenated  aorta

1 must be distributed to 2l of the body's cells, Oxygen first

enters the body when | 2 Oxygenis carried by 3,

inthe 4. Deoxygenated blood travels through the inferior and superior

5 Itfirst enters the 6. . and is pumpedto the

T From there, it is pumped to the 8 through two vessels

called the 9. areries. These arteies are an exception to the rule

since they carry 10 bloodtothe

1 2 occurs inthe lungs at the 13,

From the lungs, 14. blood travels through the

15. veins, and enters the 16. side of the heart. This is also

an exception to the rule because these veins carry 17. bloodtothe

18, Oxygenated blood frstenters the 19, then moves to the left

2 Then itis pumped out through the 21 ontothe

2 and 23 body

The local fluid density is what the slope of the pressure versus depth graph in physics physically means.

According to fluid physics, a fluid's density and gravitational acceleration at a given depth are directly inversely related to that fluid's pressure. An illustration of this relationship can be seen as a pressure versus depth plot, where the slope of the line corresponds to the density of the local fluid. In other words, the fluid density is higher the steeper the slope is, and vice versa. Understanding the behaviour of fluids in different real-world applications, such as drilling for oil and gas in the ocean, depends on this relationship. One can determine the local fluid by measuring the depth and pressure.

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Answer:

A circuit in which the continuity is broken due to which the electric current can not flow is known as the open circuit. In an open circuit, the current flowing is zero, thus no power dissipates from an open circuit.

Explanation:

You're welcome.

A unipolar output whose sole connection to a supply voltage is made by an active component, often a transistor, within the integrated circuit is termed as the open circuit output.

When the active device is turned on, the output voltage reaches the supply voltage to which it is connected (via into the active device);

Output are typically categorized in accordance with the name of the active device component within in the integrated circuit to which they are attached, for example, open-collector output, expansive output, etc.

Thus, a unipolar output whose sole connection to a supply voltage is made by an active component, often a transistor, within the integrated circuit.

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The bones are 6751 years old.

We know that time of a reaction is given by:

                                              kt = ln(A'/A)

where,

k = reaction constant = 0.0001216

A' = initial concentration

A = final concentration = 44% A = 0.44A

Putting these values in above equation we get:

t = ln(1/0.44)/ 0.0001216

 = 6751 years

So, the bones are 6751 years old.

All radioactive reactions are first order reaction.

A first-order reaction is one in which the rate of reaction is proportional to the concentration of the reactant. To put it another way, doubling the concentration doubles the reaction rate. A first-order reaction can have one or two reactants, as in the case of the decomposition reaction.

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The distance traveled by the bicycle in one rotation of the wheel is approximately 78.5 inches.

It is defined as the product of the diameter of the circle (the distance across the circle through its center) and π (pi), a mathematical constant approximately equal to 3.14. The formula for the circumference of a circle is:

C = 2πr

where r is the radius of the circle, which is half the length of the diameter.

The concept of circumference is used in many areas of mathematics and science, such as geometry, trigonometry, physics, and engineering. For example, in physics, the circumference of a wheel is used to calculate its rolling distance and the circumference of a pulley can be used to determine its mechanical advantage. In engineering, the circumference of a pipe or a cylinder is used in fluid mechanics to calculate the flow of liquids and gases.

The distance traveled by a bicycle in one rotation of the wheel can be calculated using the circumference of the wheel. The circumference of a circle is given by the formula:

C = 2πr

where C is the circumference, π is approximately equal to 3.14, and r is the radius of the circle. In this case, the radius of the wheel is equal to half the diameter, so:

r = 25 in / 2 = 12.5 in

Substituting this value into the formula for the circumference gives:

C = 2π * 12.5 in = 25π in

So, the distance traveled by the bicycle in one rotation of the wheel is approximately equal to 25π inches. To the nearest tenth of an inch, this distance is:

25π ≈ 78.5 in

So, the distance traveled by the bicycle in one rotation of the wheel is approximately 78.5 inches.

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Earth's mean distance from the Sun is 1.495x108 kilometres, and its orbital period is 365 days. In 365.256 days (1 sidereal year), the Earth completes one orbit, covering 940 million kilometres (584 million mi).

One rotation of the Earth takes 24 hours, while that of Mars takes 25. The gas giants spin quite quickly. Jupiter's revolution takes only 10 hours to complete. Neptune takes 16 hours, Saturn 11 hours, and Uranus 17 hours. The length of time it takes an astronomical object to complete one orbit around another object is known as the orbital period (also known as the revolution period). In astronomy, it typically refers to bodies like planets or asteroids revolving about the Sun, as well as moons circling other stars, exoplanets, and double stars.

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The gold medal winner in Olympic downhill skiing perceives the length of the course to be 4.1 km, compared to the measurement of 3 km made by the organizers.

The length of an object as perceived by an observer moving at a significant fraction of the speed of light (such as 0.87c) is affected by relativistic length contraction. According to the theory of special relativity, the length of an object measured by a stationary observer and by an observer moving at a significant fraction of the speed of light will differ. The length of the object as perceived by the moving observer is given by the Lorentz factor:

L = L0 / √(1 - v^2 / c^2)

where:

   L is the length of the object as perceived by the moving observer

   L0 is the length of the object as measured by a stationary observer

   v is the velocity of the moving observer (0.87c)

   c is the speed of light (3 x 10^8 m/s)

Plugging in the values:

L = 3 km / √(1 - (0.87c)^2 / c^2) = 3 km / √(1 - 0.7569) ≈ 4.1 km is the perceived length.

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Intentional destruction of tissue by caustic chemical, electric current, laser, or freezing is called ablation.

Ablation is a medical procedure used to remove or destroy abnormal or diseased tissue. The method used for ablation depends on the type and location of the tissue, and the desired outcome of the procedure. For example, electrical current can be used to destroy heart tissue causing an arrhythmia, while lasers can be used to remove unwanted skin growths. Freezing can be used to destroy abnormal tissues in the uterus or prostate, while caustic chemicals can be used to treat certain types of cancer.

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Option B and D are valid because tension equals weight of 2 kg mass, which is 19.6 N force.

Tension is defined in physics as the pulling force transferred axially by a string, rope, chain, or similar item, or by each end of a rod, truss member, or similar three-dimensional object; tension may alternatively be defined as the action-reaction pair of forces operating at each end of those elements. Tension is described as the force transferred through a rope, string, or wire when it is pulled by opposing forces. The tension force is directed along the wire's length, pulling energy evenly on the bodies at the ends. Every physical item that comes into contact with another puts some force on it.

Here,

Option B and D is correct that is tension is equal to weight of 2 kg mass that is 19.6 N force.

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The tangent function can be represented on a unit circle by mapping an angle in the circle to the ratio of the y-coordinate to the x-coordinate of the point on the circumference that corresponds to that angle. This ratio is the required tangent of the given angle.

What is Tangent?

The tangent is a mathematical function that describes the ratio of the length of the side opposite a given angle in a right triangle to the length of the adjacent side. It is represented by the symbol "tan" and is defined for angles in trigonometry. It is used to describe relationships in mathematics, science, and engineering.

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Answer:pv cells using electricity

Explanation:

The sunlight is the energy source causes the solar panel to generate electrical energy.

What is energy?

The definition of energy is "capacity to do work, which is ability to apply force causing displacement of an object." Energy is just the force that moves objects, despite this definition's seeming complexity.

What is electrical energy ?

A charged particle's ability to start an action or move an item is known as electrical energy. Electrical energy is produced as a result of electrons moving between atoms. Electrical energy is used to operate appliances like toasters and phone chargers every time you put them into a wall socket.

Sunlight energy is captured by the PV cells in a solar panel when the sun shines on it. By generating electrical charges that move in reaction to an internal electrical field within the cell, this energy generates electrical currents that allow electricity to flow.

Therefore, sunlight is the energy source causes the solar panel to generate electrical energy.

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