the electrical phenomena that work against the accurate transmission of signals are called .

Answer:

no such thing i dont think

Explanation:

Answer:

Polygraph tests are used to determine whether someone is lying or not, and display the physical signs someone is showing when they speak to be interpreted. Polygraphs measure things like heartbeat, breathing rate, and electrical conductivity of the skin, which are signs that get more and more severe when someone tells major lies or lies a lot. Polygraph tests are pretty unreliable because everyone shows different reactions to speaking depending on how anxious they are or any other medical condition, which could falsely incriminate them, but I think it is still important to determine the signs someone displays to use as a datapoint later on in the trial. For those reasons, they should still be used but shouldn't be relied on as heavily.

Explanation:

If the two protons and the η0 are all at rest after the collision, 0m/s is the initial speed of the protons, expressed as a fraction of the speed of light.

The pace at which an object moves from one location to another is referred to as its speed. Both metres per second (m/s) and miles per hour (mph) are used to measure it. Less time is spent travelling when speed is increased. The universe's maximum speed is equal to the speed of light. In activities involving speed, like driving and athletics, reaction time is an important consideration. The speed of an object in motion can be impacted by air friction and wind resistance. There are various forms of speed, such as average speed, continuous speed, and instantaneous speed. Roadway speed limits are put in place to promote safety and lower the number of collisions.

p = \(mv / sqrt(1 - v^2/c^2)\)

\(p_{total}\)= 2p = 2mv / \(\sqrt{(1 - v^2/c^2)}\)

\(E_{total}\) = \(2Mc^2 + Mc^2 + m c^2\)

        = \(3Mc^2 + m c^2\)

K =\(2[(\gamma - 1)Mc^2]\)

 =\(2[\sqrt{t(1 - v^2/c^2) - 1)Mc^2} ]\)

2mv / \(\sqrt{1 - v^2/c^2}\)+ 0 = 0

2[\(\sqrt{(1 - v^2/c^2) - 1)Mc^2}\)] + \((3Mc^2 + m c^2)\) =\(2Mc^2 + Mc^2 + m c^2\)

2mv = 0

v = 0m/s

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pluto is best decribed as smallest planet

Answer:

blue

Explanation:

blue is the only color being reflected, meaning it's the only one that will be visible

Answer:

-18 Nm

Explanation:

Impulse = Change of Momentum

I = ∆p

I = mv2 - mv1

I = 3 x 3 - 3 x 9

I = 9 - 27

I = -18 Nm

Answer:

An isolated system is a single object that doesn't interact with any other objects. An isolated system has constantly changing energy. As a member, you'll also get unlimited access to over 79,000 lessons in math, English, science, history, and more.

Explanation:

An isolated system is a system in which the mass and energy are not allowed to escape.In open system, energy and mass can transfer and in closed system, only energy can transfer but the mass is conserved.

For an isolated system, the statement "total energy and mass are conserved" should be correct.

Therefore, for an isolated system, the statement "total energy and mass are conserved" should be correct.

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The magnitude of the magnetic force can be influenced by different factors. Understanding the formulas for magnetic force, we can describe how each of these factors affects the magnitude of the magnetic force. These effects can be categorized into three possibilities: no effect, direct proportionality, and inverse proportionality.

1. No effect: In some cases, certain factors may not have any effect on the magnitude of the magnetic force. This means that changing these factors will not cause any change in the magnetic force. It indicates that the magnetic force is not influenced by those specific factors.

2. Directly proportional: When a factor is directly proportional to the magnetic force, it means that increasing or decreasing that factor will directly impact the magnitude of the magnetic force. As the factor increases, the magnetic force also increases proportionally, and vice versa.

3. Inversely proportional: On the other hand, when a factor is inversely proportional to the magnetic force, changing that factor will have an inverse effect on the magnitude of the magnetic force. As the factor increases, the magnetic force decreases proportionally, and vice versa.

To determine the specific four-digit number for each factor, it is necessary to consider the relevant formulas for magnetic force and the specific factors involved.

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When the north pole is tilted toward the sun, the southern hemisphere has the fewest hours of daylight due to winter season in it.

When the North Pole is tilted toward the sun, the Northern Hemisphere has the most hours of daylight while on the other hand, the Southern Hemisphere has the least hours of daylight.

So we can conclude that When the north pole is tilted toward the sun, the southern hemisphere has the fewest hours of daylight due to winter season in it.

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The true statement is that speed and average velocity are both positive.

The term speed has to do with the ratio of the distance that has been covered by a body with time. Now, we know that the distance is a scalar quantity, this implies that we do not take the direction to account anytime that we have to deal with the speed of a body. Thus the speed has been shown to be a scalar.

On the other hand the velocity of a body is the ratio of the displacement to the time taken by the object and the displacement is a vector quantity thus we have to take the direction account when looking at the velocity.

We know that the direction of the velocity changes as it moves round the circle. This implies that the velocity of the body changes and its positive. The speed is also positive.

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Answer:

15.7 ; 78.5

Explanation:

Given that

The mechanic use a screw driver to install 1⁄4-20 UNC bolt

And, the effort force is 5lb

We need to find out the mechanical advantage

And, the resistance force

As we know that

The Mechanical advantage of a screw = Circumference ÷ pitch

where,  

Circumference = pi × d

 pi = 3.142, D = diameter

So,  

Circumference = 3.142 × (1 ÷ 4)

= 0.785 in

Now

Pitch = 1 ÷ TPI

Here TPI (thread per inch) = 20

Pitch = 1 ÷  20 = 0.05

So,

Mechanical advantage = 0.785 ÷ 0.05

= 15.7

Now Resistance force if effort force is 5lb

We know that

Mechanical advantage = Fr ÷ Fe

Here

Fe = effort force, Fr = resistance force

15.7 = Fr ÷ 5

Fr = 15.7 × 5

= 78.5 lbs

The guilty batter will often be removed from the game after charging the mound, though depending on the situation, there may also be a fine or suspension. Discipline for throwing a beanball may also be applied to the pitcher.

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Explanation:

20 joule is your answer

Answer:

here

mass m =100kg

distance d=50m

acceleration due to gravity a =10m/s²

work =force×displacement

= ma/d=100×10/50=20joule

Answer:

a. 25 N. The box will move toward the greater force, however, I'm not too sure if that is enough to move a 100kg box.

Explanation:

First, let's define resultant force.

Resultant force is the total force of action enacted on a object or thing.

To get the resultant force of this problem, add 10 N to 15 N and you will get an answer of 25 N total.

The object will move toward the greater force because there is a larger difference between the force on the left.

The three-letter basic unit of area in the metric system that is equal to \(100\) 100 square meters is "are" (symbol: "a").one hectare is approximately equal to \(2.471\) 2.471 acres.

What three-letter basic unit of area in the metric system is equal to 100 square meters, or approximately 0.02471 acres?

One hectare is equal to\(100\) 100 acres or\(10,000\) 10,000 square meters. Therefore, one hectare is approximately equal to \(2.471\) 2.471 acres.

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Correct option is C, Centripetal force remains constant.

Centripetal Force -

Any force that changes the direction of motion toward the center of a circular motion is known as a centripetal force. The part of the force that produces the centripetal force is the part that is perpendicular to the velocity.

A net force that keeps an object moving in a circular motion is known as a centripetal force.

Centripetal force has the formula =mv2r. The newton or kgms2 is the measure of force.

A centripetal force is applied to any item travelling in a circle (or along a circular path). In other words, the object is being physically pushed or pulled in the direction of the circle's center. This is the necessary centripetal force.

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The heat flows into the sample in the segment    BC        will yield the value of the heat of fusion of this substance.

The heat of the fusion of water is unusually high. The amount of heat required to convert 1 g of solid into a liquid while maintaining the same temperature is known as the heat of fusion. It is a latent heat as well and is occasionally referred to as the latent heat of fusion. Since water only freezes at a single temperature (0 °C), it only has one value, which is 79.71 cal/g, or the rounded amount of 80 cal/g.

In order to control frost, water fuses at a high temperature. The water used for irrigation is frequently consistently above freezing when it is extracted from the ground.

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For a nominal 1.5-inch by 3.5-inch wood stud, the original width is 1.5 inches. Applying the two-thirds rule, we find that the largest hole size should not exceed approximately 1.5 inches * (2/3) = 1.0 inch.

Wood studs are an essential component of framing structures, providing support and stability. However, when creating openings in studs, it is crucial to consider the potential impact on the stud's strength.

To determine the largest hole size, it is necessary to assess the impact on the structural integrity of the stud. In general, guidelines recommend limiting the hole size to maintain at least two-thirds of the stud's original width.

Without any additional protection, the largest size hole that can be used in a nominal 1.5-inch by 3.5-inch wood stud is approximately 1.125 inches in diameter. This diameter allows for sufficient structural integrity while minimizing the risk of compromising the stud's strength.

However, it is important to leave some margin for practical considerations and to account for potential irregularities in the stud's dimensions. Hence, a conservative estimation is to limit the hole size to approximately 1.125 inches in diameter, providing a balance between functionality and maintaining structural integrity for the wood stud.

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The largest hole size that can be used in a nominal 1.5-inch by 3.5-inch wood stud is approximately 0.5 inches.

The largest size hole that can be used in a nominal 1.5-inch by 3.5-inch wood stud depends on the wood stud's load-carrying capacity and the desired safety factor. If we assume a typical safety factor of 2, the hole size should not exceed 1/3 of the width or height of the stud. Therefore, the largest hole size that can be used in this case would be approximately 0.5 inches.

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Answer:

20m/s2.isjsjsjjsjsisisiww

"Comets tend to be faster than asteroids, and it is estimated that there are far more large comets than large asteroids." Correct option is B.

As comets typically originate from farther out than asteroids do, they move at faster speeds when they cross Earth's orbit: An asteroid would need to be larger than 10 kilometres in diameter, whereas a comet would only need to be about 7 kilometres in diameter to hit Earth with enough energy to form Chicxulub crater.

Two factors that differentiate a comet from an asteroid are shape of the orbit and chemical composition.

There are asteroids that are spherical, curved, and even have satellites. A comet circles the Sun similarly to an asteroid, but unlike an asteroid, it is made of ice and dust. Therefore, a comet's ice and dust composition begin to vaporise as it approaches the Sun. Consequently, a comet looks fuzzy and/or has a tail when viewed through a telescope.

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Answer:   2.03259656 × 10^8

Explanation:

1.5 x 10 = 15

√(15) = 3.87

put this to the side until we sum everything up..

3.5 × 10 = 35

35 ^ 5 = 52521875

So, now lets sum it all up....

(3.87) x (52521875) = 203259656.25

but in scientific notation it is:  2.03259656 × 10^8

If helpful, please mark as brainliest! =)

Answer:

These two groups of planets are separated by the asteroid belt, a disk of small rocky bodies orbiting the sun between Mars and Jupiter.

Explanation:

Your welcome!

The property of a body to remain at rest or to remain in motion with constant velocity is called inertia. Newton's first law is often called the law of inertia.

Newton's First Law of Motion also known as Law of Inertia states that every object persists to stay in uniform motion in a straight line or in the state of rest unless an external force acts upon it. An object at rest will stay at rest and an object in motion will stay in motion unless acted on by an external force. This means that the motion can neither change nor decrease without the effect of an unbalanced force.

Application of newton 1st law motion:

A car travelling on a highway at a fixed speed tends to maintain uniformity in its motion and everything else inside the car. When a force from outside is applied to the car in motion, like a sudden change in direction, the car will respond to this sudden change on its own, although the passengers in the car or the objects inside it are still responding to inertia, wherein their motion will still be in a straight line. When in fact the direction has already changed causing the passengers or the objects to be thrown off. This event is explained by the first law of motion.

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At constant velocity, the crate would be in equilibrium, so that Newton's second law tells us

p + (-f ) = 0

where p and f denote the magnitudes of the added pushing force and friction force, respectively.

The friction force is proportional to the normal force by a factor of µ, the coefficient of friction. There's no vertical movement going on, so Newton's second law says

n + (-w) = 0

where n and w are the magnitude of the normal force and the weight of the crate, respectively.

Compute n :

n = w = (25 kg) (9.80 m/s²) = 245 N

Use this and µ = 0.45 to compute f :

f = µ n = 0.45 (245 N) = 110.25 N

Solve for p :

p + (-110.25 N) = 0

p = 110.25 N ≈ 110 N

The force i.e required to move the crate at a constant velocity across the floor is 110 N.

At the same velocity, the crate should be in equilibrium, so as per Newton's second law, the following formula should be used:

p + (-f ) = 0

p means the magnitudes of the added pushing force

f means the friction force

n = w = (25 kg) (9.80 m/s²) = 245 N

Now

force should be

= µ n

= 0.45 (245 N)

= 110.25 N

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The  heat must be added to the system to double its internal energy  are:
Part A: QP = 8.5 kJ
Part B: QV = 3.2 kJ

For part A, we can use the equation QP = ΔH = nCpΔT, where ΔH is the change in enthalpy, n is the number of moles of gas, Cp is the molar heat capacity at constant pressure, and ΔT is the change in temperature. Since the gas is monatomic and ideal, we can use Cp = (5/2)R, where R is the gas constant.

To double the internal energy, we need to add ΔU = nCvΔT = (3.5 mol)(3/2 R)(300 K) = 4725 J of heat at constant volume.

For part B, we can use the equation QV = ΔU = nCvΔT, where ΔU is the change in internal energy, Cv is the molar heat capacity at constant volume, and ΔT is the change in temperature. Since the gas is monatomic and ideal, we can use Cv = (3/2)R.

To double the internal energy, we need to add ΔU = nCvΔT = (3.5 mol)(3/2 R)(300 K) = 3150 J of heat at constant volume.

Therefore, the answers are:
Part A: QP = 8.5 kJ
Part B: QV = 3.2 kJ

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Answer:

The magnetic pull strength is measured by using the calibrated scale and a ferrous test piece to determine the breakaway force, typically measured in pounds or ounces. (I don't take credit for this answer)

Explanation:

Answer:

There would be no "seasons"

The person would always be subjected to the same amount of sunlight.

Since the earth is tilted at about 23 deg, a person at  that latitude would be subjected to sunlight from overhead to sunlight that appears 46 deg N of vertical.

Answer:

B

explanation:

I think B is right hope it will be help

Determine the center of mass of the system is 3.0 kg.

What is mass ?

A body's mass serves as a proxy for its volume of matter. The mass unit established by SI is the kilogramme (kg). A body's mass never varies, it should be mentioned. only under unusual, exceptional circumstances where a considerable amount of energy is provided to or taken away from a body.

What is kilogram ?

The SI's (International System of Units) unit of mass, the kilogramme (sometimes spelled kilogramme), has the unit symbol kg. In addition to being a measurement unit widely utilised in research, engineering, and commerce globally, the word "kilo" is commonly employed in everyday speech. "One thousand grammes" is meant by it.

a. Mass of the bear cub, m1 = 40 kg

Mass of the log, m2 = 600 kg

The speed with which the bear leaps, v1 = 4 m/s

Let v2 be the speed of the log.

Using law of conservation of momentum, m1v1 = m2v2

40 x 4 = 600 x v2

Speed of the log, v2 = 0.27 m/s

0.27 m/s

b. A cannonball explodes in mid-air into several fragments. According to law of conservation of momentum, total momentum of all the fragments is equal to the momentum of the cannonball just before explosion.

c. Mass, m1 = 24.3 kg

Mass, m2 = 45.8 kg

Center to center distance, r2 = 4.6 m

Distance of the center of mass from the center of 24.3 kg is R = m1r1+m2r2m1+m2

R = 24.3 x 0+45.8 x 4.624.3+45.8

= 3.0 m

d. Using Newton’s 2nd law of motion, force F = m(v- u)t

Ft = m(v-u)

But, Ft is the momentum, and m(v-u) is the change in momentum.

Hence, the impulse is equal to a change in momentum.

Impulse is: I

Therefore, determine the center of mass of the system is 3.0 kg.

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Strategic ambiguity refers to the purposeful use of indirect language. The correct option is C) the purposeful use of indirect language.

Strategic ambiguity refers to the use of vague or unclear language in order to communicate a message that can be interpreted in different ways. Strategic ambiguity is frequently employed in politics, business, and diplomacy, among other fields.

In order to manage conflict or uncertainty, strategic ambiguity is used. It may be utilized to hide information or intentions, or to preserve options or flexibility. Strategic ambiguity can be employed to keep different groups engaged while avoiding alienating them by promoting differing interpretations of a message.

Examples of strategic ambiguity

1. In diplomacy, strategic ambiguity is often used to avoid disclosing a nation's true intentions or to provide an escape route in the event of a change in policy.

2. In business, it may be used to give consumers the impression that a product is of a higher quality than it is, without making specific claims.

3. During political campaigns, politicians may use strategic ambiguity to avoid making specific promises or commitments that they may be unable to keep.

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Waves share common characteristics such as wave motion, amplitude, wavelength, frequency, wave speed, and interactions with boundaries. These properties are fundamental to understanding the behavior and properties of various types of waves, including sound waves, electromagnetic waves, water waves, and seismic waves.

A characteristic of all waves is their ability to transfer energy without transferring matter. This fundamental property distinguishes waves from other forms of energy transfer, such as the movement of objects in a solid or the flow of fluids. Waves propagate through various mediums or through empty space, carrying energy from one location to another.

Waves exhibit several common characteristics, including:

1. Wave Motion: Waves involve the transfer of energy through periodic oscillations or vibrations. The particles or fields involved in the wave motion move back and forth around their equilibrium positions, transmitting the energy along the wave path.

2. Amplitude: The amplitude of a wave represents the maximum displacement or disturbance from the equilibrium position. It corresponds to the intensity or strength of the wave and can be measured as the maximum height, displacement, or value of a wave.

3. Wavelength: The wavelength of a wave is the distance between two consecutive points with the same phase or the distance covered by one complete cycle of the wave. It is commonly represented by the symbol λ and is usually measured in meters or other appropriate units.

4. Frequency: The frequency of a wave refers to the number of complete oscillations or cycles that occur per unit of time. It is denoted by the symbol f and is measured in hertz (Hz). The frequency and wavelength of a wave are inversely related and are related to the speed of the wave through the equation v = fλ, where v represents the wave velocity.

5. Wave Speed: The wave speed represents the rate at which a wave travels through a medium or through empty space. It is the product of the wavelength and the frequency of the wave and is usually denoted by the symbol v. The speed of a wave depends on the properties of the medium through which it travels.

6. Reflection, Refraction, and Diffraction: Waves can undergo interactions with boundaries or obstacles, resulting in phenomena such as reflection (bouncing off a surface), refraction (bending when passing through different mediums), and diffraction (spreading out or bending around obstacles).

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