Whoever can answer this is smart
What is an electrostatic force in a simple definition
What is a magnetic force in simple definition

Answer:no

Explanation:

no

An electric field is a region in which electric charges sustain electrical conduction. An electric field describes the electrical environment around an electron.

The electric force is the force between two charged bodies due to electric charges. The electric field at a point indicates the force experienced by a positive unit test charge at that point.

In this case, electrons move to higher potentials. Since the electric field is directed from the positive plate to the negative plate, electron acceleration occurs towards the negative plate and the negative plate is deflected towards the positive plate.

In this case, the electrostatic force is F = E q,

Here the electric field E = V/d is constant and the charge on the electron is constant, so the force on the electron is constant. Hence, the electron moves in the proper direction in terms of the forces acting on the electron.

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The magnitude of the tension in string 1 is 20 N.

option D is the correct answer.

The magnitude of the tension in string 1 is calculated by applying the following kinematic equation.

T₁ cosα  +  T₂ cosβ = W cos90 ----  ( 1 )

T₁ sinα  +  T₂ sinβ = W sin90 ----- ( 2 )

Substitute the given values for β and α, to determine the value of Tension T₁ and Tension T₂.

-T₁ cos(40)  +  T₂ cos(60) = W cos90

-0.766T₁  +  0.5T₂ = 0

0.5T₂  = 0.766T₁

T₂ = ( 0.766T₁ ) / 0.5

T₂ = 1.53 T₁  ----- (3)

T₁ sinα  +  T₂ sinβ = W sin90

T₁ sin(40)  +  T₂ sin(60) = (4 x 9.8) sin90

0.64T₁ + 0.886T₂ = 39.2

Substitute the value of T₂ into the above equation as shown below.

The tension in string 1 is calculated as follows;

0.64T₁ + 0.886(1.53 T₁) = 39.2

0.64T₁ + 1.33T₁ = 39.2

1.97T₁  = 39.2

T₁   = 39.2 / 1.97

T₁  = 19.99 N ≈ 20 N

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The height of the mercury on the right side of the tube is 3.69 cm.

The height of the mercury on the right side of the tube is determined as follows:

Using Bernoulli's equation;

p₁ + ¹/₂ρv₁² = p₂ + ¹/₂ρv₂²

p₁ - p₂ =  ¹/₂ρ(v₁² - v₂²)

From the continuity equation;

A₁v₁ = A₂v₂

v₁ = A₂v₂ / A₁

v₁ = A₂v₂ / π(r₁/2)²

The rate of airflow in the tube (A₁v₁ = A₂v₂) is 1100 cm³/s

Substitute the values in the equation above;

v₁ = 1100/π(/2)²

v₁ = 350.14 cm/s or-3.50 m/s

Also, v₂ = A₁v₁/A₂

v₂ = 1100/ π(0.4/2)²

v₂ = 8753.5 cm/s or 87.5 m/s

The pressure difference in the U-shaped tube is

p₁ - p₂ = ρ'gh

where;

ρ' is the density of mercury = 3.6 * 10³ kg/m³

Solving for h in the equation above;

h = p₁ - p₂ / ρ'g

Note that p₁ - p₂ =  ¹/₂ρ(v₁² - v₂²)

Therefore, h = ¹/₂ρ(v₁² - v₂²) / ρ'g

Substituting the values in the equation;

h = ¹/₂(1.29 )((87.5) - (3.50)) / (13.6 * 10³)(9.8)

h = 0.0369 m or 3.69 cm

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Due to the friction's opposing force, the crate travels at a constant speed; otherwise, its speed would increase.

The crate continues to move when the worker stops pushing, albeit more slowly. However, since the floor and the bottom of the container are still moving past one another, a friction force (frict) directed against the motion of the crate will still exist.

A flatbed truck's bed has a large, hefty crate on it. The crate accelerates as well because it is connected to the truck and continues to move forward as it does. The crate's acceleration is due to what force.

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The following is the explanation for the given question:

What are Dielectrics?

Dielectrics can generally be described as materials with very low electrical conductivity. It act as an insulator which has no free electrons. When an electric field is applied dielectrics can be easily polarized.

Explanation:

By induction, the negative charges in the neutral dielectric are nearer to the positive sphere, which means by induction negative and positive charges are separated in the dielectric. Negative charges are nearer to the positive metal sphere and positive charges are further from the metal sphere as shown in the below diagram.

Hence, the negative charges are nearer to the positive metal sphere and positive charges are further from the metal sphere.

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Because the neutral dielectric negative charges are closer to the positive sphere through induction, the dielectric negative and positive charges are separated.

Negative charges are closer to the positive metal sphere than positive charges are to it. As a result, positive charges are further away from the positive metal sphere, while negative charges are closer to the positive metal sphere.

Materials with a very low electrical conductivity are known as dielectrics. It serves as an insulator because it lacks free electrons. Dielectrics can easily become polarized when an electric field is applied.

A dielectric becomes polarized when placed in an electric field. A polarized material has a smaller electric field than the applied field.

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False. A Method for Calculating the Spring Constant of Atomic Force Microscopy Cantilevers with a Nonrectangular Cross Section is not a valid statement.

This is because the spring constant is not affected by the shape of the cantilever, but is instead determined by the material used in its construction, the number of coils in its spring, the wire diameter of its spring, and the amount of tension placed on the spring. Therefore, the statement is incorrect and cannot be used to calculate the spring constant of atomic force microscopy cantilevers with a nonrectangular cross section.

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Answer:

Because that is how God created things

Explanation:

Answer:

  B

Explanation:

You want the diagram that shows the correct setup for an electromagnet.

An electromagnet is defined as a soft metal core that becomes a magnet when current is passed through a coil around it. Only diagram B shows a coil around a metal object. That coil is arranged in a circuit with a battery so that current will flow through the coil.

Diagram B shows the correct setup for an electromagnet.

The friction is the stopping force. and the coefficient of friction is 0.4

Friction is a force that opposes motion. It is a vector quantity and it is measured in Newton.

Given that a car of mass 1200 kg is moving at 20m/s applies breaks and slides to stop in 5 second.

The acceleration of the car can be found by

v = u - at

Where

Substitute all the parameters

0 = 20 - 5a

5a = 20

a = 20/5

a = 4 m/s²

Frictional force F = ma

F = 1200 × 4

F = 4800N

Also, F = μN

Where μ = the coefficient of friction

N = normal reaction = mg

N = 1200 × 9.8

N = 11,760 N

Substitute N and F into the formula

4800 = 11760μ

μ = 4800/11760

μ = 0.4

Therefore, the coefficient of friction is 0.4

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Metal panels that are designed to act as stressed-skin panels are typically attached directly to the structural frame of the building using straps, clips, or mats.

Straps are typically used to connect the panel to a supporting member, while clips are used to secure the panel to a non-supporting member. Mats are used to provide additional support for the panel and to distribute the load evenly across the panel.

This is beneficial for the structural integrity of the building since it ensures that the panel will not be subjected to too much stress in one specific area. Additionally, it allows for better load distribution, which can help to reduce the overall weight of the building, as well as reduce stress on the individual panels.

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Answer: lymphatic tissue

Explanation:

The coefficient of kinetic friction between your tires and the road is determined as 0.4.

The acceleration of the car is determined by applying the following kinematic equation as shown below;

v² = u² - 2as

where;

when the car stops, the final velocity of the car = 0

0 = u² - 2as

2as = u²

a = u² / 2s

a = ( 14² ) / ( 2 x 25 )

a = 3.92 m/s²

The coefficient of kinetic friction is calculated by applying the following equations;

μ = Ff / W

where;

At a constant speed, applied force = force of friction

μ = Ff / W

μ = ( ma ) / ( mg )

μ = a / g

where;

μ = 3.92 / 9.8

μ = 0.4

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For a typical middle-aged woman, there are certain priorities for them such as job stability, kids, and so on, but one factor that is generally not a concern for the average middle-aged woman is how to train for the Olympics

Midlife, the stage of a woman's life between childhood and elder maturity, has been called a time of transition. Women between the ages of 40 and 65 have been the focus of midlife research because they often go through a number of social, psychological, and biological shifts during this time.

Hence, it can be seen that while there are genuine concerns for a middle-aged woman, the answer choice that is generally not a concern for the average middle-aged woman is to become an Olympian.

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If Janine is a typical middle-aged woman, she is likely to be concerned about all of the following things except for one. Identify the option that is generally not a concern for the average middle-aged woman ?

train for the Olympics

have kids

raise a family

The temperature of the ideal gas is 264.5°C while the temperature of the van der Waals gas is 260.1°C

An adiabatic process is a thermodynamic process in which no heat is transferred to or from the working fluid. This process occurs when the change in the internal energy of the system is equal to the work done. Examples of adiabatic processes include the compression and expansion of gases, the compression of liquids, and the cooling and heating of a gas.

(a) Final temperature (T2) of the ideal gas =

T2 = T1(P2/P1)^((γ-1)/γ)

T2 = 200(3/1)^((1.4-1)/1.4)

T2 = 264.5°C

(b) Final temperature (T2) of the van der Waals gas =

T2 = T1(P2/P1)^((γ-1)/γ) - (a/V2)(P2 + b)

Where, a = 3.567 kJ/molK and b = 0.0427 L/mol

T2 = 200(3/1)^((1.4-1)/1.4) - (3.567/1)(3 + 0.0427)

T2 = 260.1°C

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Answer:

Study effectively!

Explanation:

Understand the three laws of thermodynamics. These laws form the foundation of the subject and are essential to understand in order to make progress.

Learn the properties of gases and their relationships to temperature, pressure, and volume. These concepts are central to the study of thermodynamics.

Practice calculating work and heat in various systems. This will help you understand how energy is transferred in thermodynamic processes.

Learn about the different types of thermodynamic systems and their corresponding state variables. This will help you understand how to analyze and model different types of systems.

Familiarize yourself with the concept of entropy and how it relates to the second law of thermodynamics. This will be important for understanding the behavior of systems over time.

By focusing on these specific topics, you should be able to improve your understanding of thermodynamics and become proficient in the subject.

The higher displacement [highest increase in bare ground from the start position] is caused by Runner A. Runner B traveled the furthest, covering the entire track.

The verb "to displace" refers to the movement or removal of anything. The location of an object is changed, which is the definition of displacement.

Change in quite an object's location in relation to an image plane is known as displacement. For instance, a billiards ball travels from one spot to another because a player strikes it. It is alleged to have moved. A vector quantity with both speed and phase is displacement.

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Explanation:

Work done = force × distance

= 4,000 × 50

= 200,000 joules

The proton's speed as it passes through point P is Vp = 1.72 × 10^6 m/s

A proton is described as a stable subatomic particle, symbol p , H⁺, or ¹H⁺ with a positive electric charge of +1 e elementary charge.

From the question have the following parameters

A fixed charge, Q = -10 nC

Initial position of charge particle, proton (q), ro = 3mm

Final position of charge particle, proton (q),

rp = 4mm

Initial velocity of charged particle,

vo =2.8 x 10^6 m/s

Let

vp be the final speed of proton

We then Apply conservation of Energy:

Initial (Potential + kinetic) Energy = Final (Potential + kinetic) Energy

kQq ro + 1/2mVo² = kQq rp + 1/2mVp²

m = 1.67 x 10^-27

Substituting the values and converting from mm to meters, we have that)

Vp = 1.72 × 10^6 m/s

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Answer:

1/2 m v^2 = 1/2 k x^2      energy of block will be transferred to spring

1/2 m (x/t)^2 = 1/2 k x^2     x/t max speed of block

t^2 = m / k

t = (m/k)^1/2 = 1 / ω       since ω = (k / m)^1/2 for SHM

ω = 2 π f = 2 π / T      where T is period

T = 2 π * (m / k)^1/2

t = T / 4 = π / 2 * (m / k)^1/2      1/4 period needed for 1/4 oscillation

The y-intercept of a graph is the point at which the graph crosses the y-axis. In this case, the y-intercept of the graph showing the relationship between the motor's force and the boat's acceleration would represent the force required to produce zero acceleration.

In this scenario of the boats being used in an experiment, if the boats have the same mass and the motors are producing force, and the forces are graphed against the acceleration, this will give us a straight line, and the y-intercept of this graph will be the force required to keep the boat at a zero acceleration, this force is known as "friction force" which includes the friction force of the water and the friction force of the bearings in the motor and other mechanical parts in the boats and motor.

It's worth noting that, in practice, getting the y-intercept in this experiment might be very hard as it's very rare to get zero acceleration. Still, one can aim for the lowest possible acceleration, and the force measured can be considered as an approximation for the friction force.

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(a) The length of wire X is 7.14 m.

(b) The current in the wire is 0.06 A.

(c) The charge passing through the wire in 5 minutes is 18 C.

(d) The Energy consumed by the wire in half an hour is 1,296 J.

The length of wire X is calculated by applying the following formula as shown below;

ρ = RA / L

where;

Since the wires are made of the same material, resistivity of wire X = resistivity of wire Y

let wire X = 1

let wire Y = 2

R₁A₁ / L₁ = R₂A₂ / L₂

L₁ = ( R₁A₁L₂ ) / ( R₂A₂ )

L₁ = ( 200Ω x A₁ x 2.5 m ) / ( 35Ω x 2A₁ )

L₁ = 7.14 m

The current flowing in wire X is calculated as follows;

V = IR

I = V / R

where;

I = ( 12 V ) / (  200Ω )

I = 0.06 A

The charge passing through the wire in 5 minutes is calculated as follows;

Q = It

Q = 0.06 A x ( 5 x 60 s )

Q = 18 C

The Energy consumed by the wire in half an hour is calculated as;

E = Pt

where;

E = (IV) x ( t )

E = ( 0.06 A x 12 V ) x ( 30 mins x 60 s )

E = 1,296 J

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Each step of the energy released during cellular respiration is accompanied by the synthesis of ATP. Only a tiny fraction of energy is converted to heat that's why our body doesn't burn.

The process through which organisms use oxygen to break down food molecules in order to get chemical energy for cellular processes is known as cellular respiration. The cells of animals, plants, and fungi, as well as those of algae and other protists, all engage in cellular respiration.

Cells produce energy through a process called cellular respiration. Prokaryotic and eukaryotic cells both have mitochondria and cytoplasm where cellular respiration takes place.

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The time the force was applied to the obeject of mass 0.4 kg is 12 seconds

Impulse is the product of force and time.

To calculate how long the force was applied, we use the formula of impulse.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1 and solve for t

Hence, the time is 12 seconds

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The individual whose findings have the most in common with Roy Kerr’s discovery of how a noncharged, rotating massive object (like a supermassive black hole) affects its gravitational field is Einstein’s theory of relativity which posits that objects can curve the fabric of space.

The Kerr geometry, a precise response to the Einstein field equation of general relativity, was discovered by New Zealander mathematician Roy Patrick Kerr. His method simulates the gravitational environment around a huge, rotating, uncharged object, such as a rotating black hole. Before spinning black holes were discovered, his solution to Einstein's equations anticipated their existence.

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According to the previous statement, the subsequent motion of the combined body will be in an elliptical orbit. Correct answer: letter C.

When two objects of the same mass collide in a completely elastic manner, their combined motion will be a combination of their original motions. In this case, the satellite and the meteorite had the same velocity just before the collision, so the combined motion will be an elliptical orbit.

The law of conservation of momentum states that the total momentum of a system remains constant. This means that in a collision, the total momentum of the system after the collision will be equal to the total momentum of the system before the collision, or:

In the case of two objects of the same mass colliding completely elastically, the momentum of an object before the collision is equal to the mass of the object multiplied by its velocity. Therefore, the total momentum before the collision is equal to twice the momentum of one object before the collision.

After the collision, the total momentum of the combined body will be equal to the total momentum of the system before the collision, which is equal to twice the momentum of one object before the collision. This means that the combined body will move in an elliptical orbit with the same speed and direction as the original objects before the collision.

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The difference between the earth's greenhouse effect and an actual greenhouse is that the glass in a greenhouse traps heat, while greenhouse gases in the atmosphere absorb and recycle heat. That is option B.

The greenhouse gas is the type of gas that is found in the earth's atmosphere that has the ability to absorb heat from the earth's environment.

Examples of greenhouse gases include the following:

An ordinary greenhouse is used to grow crops such as tomatoes and tropical flowers. Heat is bring trapped inside these houses as the sun shines during the day time.

Therefore, it can be concluded that the major difference between the earth's greenhouse effect and an actual greenhouse is that the glass in a greenhouse traps heat, while greenhouse gases in the atmosphere absorb and recycle heat.

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Metals are good conductors of both heat and electricity, immersion rods are constructed of metallic materials. In order to heat the liquid, electricity is transferred through the immersion rod, which also needs to be a good conductor of electricity.

The set of chemical characteristics connected to the elements included in the periodic table's metals category is referred to as having a metallic character. An element's capacity to lose its outer valence electrons determines whether or not it has metallic properties. Thermal and electrical conductivity, metallic brilliance, hardness, ductility, and malleability are a few examples of characteristics that are associated with the metallic character. Francium is the most "metallic" element, followed by cesium. Generally speaking, the metallic character grows as you move toward the periodic table's lower right corner.

Electricity is a phenomenon involving electrical charges, either moving or fixed. A fundamental characteristic of matter, electric charge is carried by elementary particles. The electron, a particle involved in electricity, has a charge that is typically referred to as negative. The accumulation or motion of numerous electrons is what causes electricity's different manifestations.

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