Select the closest matching pairs possible. 3 pts for each response. Voltage Changing Magnetic Field A. Consists of oscillating electric and magnetic fields Induces a magnetic field B. Current multipled by resistance c с Electromagnetic Wave Induces an electric field D. Changing Electric Field Voltage multiplied by Current E Power

Answer:

Joule

Explanation:

the unit of work is Joule determined by the letter J.

Answer:

Explanation:

Joule is defined as the work done by a force of one newton causing a displacement of one meter. Sometimes, newton-metre (N-m) is also used for measuring work.

Answer:

A  identity

Explanation:

got it right on edge

Answer:

The identity of the H2O is what stays the same. The singular answer is A. identity of the H2O

Explanation:

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Answer: c. The electric force increases

Explanation:

If the distance between two charged particles decreases, the electric force between them increases.

According to Coulomb's Law, the electric force between two charged particles is directly proportional to the product of their charges and inversely proportional to the square of the distance between them. Mathematically, the equation can be represented as:

F = k * (q1 * q2) / r^2

Where:

F represents the electric force between the particles.

k is the electrostatic constant.

q1 and q2 are the charges of the particles.

r is the distance between the particles.

As the distance (r) between the particles decreases, the denominator of the equation (r^2) becomes smaller, causing the overall electric force (F) to increase. Conversely, if the distance between the charged particles increases, the electric force between them decreases. This inverse relationship between the distance and electric force is a fundamental characteristic of the electrostatic interaction between charged objects.

Answer:

You can make an electromagnet stronger by doing these things: wrapping the coil around a piece of iron (such as an iron nail) adding more turns to the coil. increasing the current flowing through the coil.

Explanation:

Answer:

Cation

Explanation:

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If you lived on Mars, your age would be measured differently compared to Earth due to the different length of a Martian year. If you lived your entire life on Mars, you would age at roughly half the rate you would on Earth.

Mars takes approximately 1.886 Earth years (687 Earth days) to complete one orbit around the Sun. This means that Mars experiences a longer year than Earth.

To understand how your age would be different, let's consider an example. Let's say you are 20 years old on Earth. If you were to celebrate your birthday on Mars, it would take 1.886 Earth years for Mars to complete one orbit around the Sun. Therefore, during this time, you would only have one birthday on Mars. By the time Mars completes its second orbit, you would be 40 years old on Earth, but only 21 years old on Mars.

In other words, your age on Mars would increase at a slower rate compared to your age on Earth. This phenomenon is due to the longer Martian year. While Earth experiences 365 days in a year, Mars takes approximately 687 days. Therefore, if you lived your entire life on Mars, you would age at roughly half the rate you would on Earth.

Living on Mars would mean experiencing longer seasons, witnessing different patterns of celestial events, and having a distinct calendar system. Your age, in terms of Earth years, would be significantly different on Mars due to its longer orbital period around the Sun.

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The matter in the accretion disc is heated to extremely high temperatures, which ultimately lead to the emission of photon radiations, as the speed of the infalling particles becomes more random or chaotic.

We are aware that disordered microscopic particle motion, as defined, is thermal motion and is hence directly related to temperature. The most significant features in the universe are accretion discs, which can be found even in tight binary stars, surrounding smaller stars or stellar remnants, in spiral galaxy centers, in quasars, and they can even form in gamma-ray bursts. The shape of the accretion disc might vary. It could be planar or spherical.

They are bumping into other gas particles as they move. As a result, the movement's direction changes, and it now moves randomly. Particles that are travelling at random make up gas.

They are bumping into other gas particles as they move.

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The gas has a higher density of bigger particles. The motions of an accretion disc are easier on smaller particles than on larger ones. The density of the material (also known as its specific mass).

Mass in volume per unit. Although density can also be symbolised by the Latin letter D, the most typical mark is (the lower case Greek letter rho). A essential quality of a body is its mass. It was widely believed to be connected to the volume of matter in a physical body before to the atom's discovery and the development of particle physics. Theoretically, the same chemical might be included in different atoms and elementary particles. A essential quality of a body is its mass.

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Rocks with a silica content of around 70% and composed primarily of quartz and feldspars are at the light-colored extreme. Granitic rock refers to these rocks.

Amorphous silicon dioxide, or SiO2, is employed in microsystems as a structural or sacrificial layer in many micro - milling techniques, as a dielectric in capacitors and transistors, as an insulator to isolate various electronic parts, and in other applications.

In order to alter the rheological behaviour of cement systems, increase the reactivity of supplemental cementitious materials, and increase the strength and durability, SiO2 nanoparticles were utilised.

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When the accumulated count exceeds the preset count in a counter system, the correct response is that the D. counter done bit becomes true.

In this situation, the accumulated value represents the total count that has been recorded, while the preset count serves as a threshold or target value. Once the accumulated count surpasses this threshold, the counter's done bit is set to true, signaling that the desired count has been reached. This done bit is typically used to trigger other actions within a control system or to provide feedback to the operator.

It is important to note that the accumulated value is not reset to zero (A) and the preset value is not set to zero (B) when the accumulated count exceeds the preset count. These values remain unchanged unless the system is manually reset or a specific reset command is given. Furthermore, the reset state itself does not change (C) solely due to the accumulated count surpassing the preset count.

In summary, when the accumulated count exceeds the preset count, the counter done bit becomes true, providing an indication that the desired counting threshold has been reached. This signal can then be used to initiate further actions within the system or provide feedback to the operator. Therefore the correct option is D

The Question was Incomplete, Find the full content below :

When the accumulated count exceeds the preset count,the:

A)accumulated value is set to zero.

B)preset is set to zero.

C)reset changes state.

D)counter done bit is true.

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The mass of liquid that the wooden block will displace is 2400 g. and the thickness of the  block is 0.8 cm

​

According to the floatation principle, the buoyant force acting on an object or body as it moves through a liquid is equal to the weight of the thing. The volume of the object submerged in the fluid is equal to the displaced volume of the fluid.

By principle of floation

Mass of wood=mass of liquid displaced.

Density of block=0.8 g/cm3

Volume of block= 20 x 15 x10=3000

mass of liquid displaced= density x volume

                                        =0.8 x 3000

                                        =2400 g

thickness of block= 2400/3000

                              =0.8 cm

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Answer: Electromagnetic radiation, such as solar flares and other forms of radiation in space, can disrupt communication tools on a spacecraft in several ways.

First of all, it can obstruct radio signals that the spacecraft uses to connect with Earth, resulting in a signal loss or a decline in the signal's quality. When the radiation disrupts the amplifiers and receivers, which are electronics that process the signals, this can occur.

The spacecraft's computer memory may experience single-event upsets (SEUs) as a result of electromagnetic radiation. A high-energy particle striking a memory cell results in a bit flip and a SEU, which can destroy data, cause software to crash, or create other issues.

The spacecraft's solar panels and other electrical components are susceptible to harm from electromagnetic radiation, which might impair power and communication.

Spacecraft designers frequently use shielding materials and redundant communication systems to reduce the impacts of electromagnetic radiation and make sure the spacecraft can keep operating even if one system fails.

Explanation:

When the planet Mars is, on average, about 228 million km from the Sun, the correct option is about 1.52 hours.

The time it takes light from the Sun to reach Mars when the planet Mars is, on average, about 228 million km from the Sun is about 12.7 minutes.

The given question can be solved using the formula; Time = Distance / Speed of light

Given that Distance of Mars from the Sun = is 228 million km

The speed of light = 300,000 km/sNow, let's plug in the values in the formula.

Time = Distance / Speed of light = 228 × 106 km / 300,000 km/s = 760 secondsTherefore, the time taken for light to reach Mars from the Sun is 760 seconds.1 hour is equal to 3600 seconds.

Therefore, the time taken for light to reach Mars from the Sun is about 760 / 3600 hours = 0.21 hours or about 1.52 hours.

Hence, the correct option is about 1.52 hours.

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Answer:

31.92 h

Explanation:

We'll begin by calculating the number of half-lives that has elapsed. This can be obtained as follow:

Original amount (N₀) = 1

Amount remaining (N) = ⅛

Number of half-lives (n) =?

N = 1/2ⁿ × N₀

⅛ = 1/2ⁿ × 1

Cross multiply

2ⁿ = 8

Express 8 in index form with 2 as the base.

2ⁿ = 2³

n = 3

Thus, 3 half-lives has elapsed.

Finally, we shall determine the time. This can be obtained as follow:

Half-life (t½) = 10.64 h

Number of half-lives (n) = 3

Time (t) =?

n = t / t½

3 = t / 10.64

Cross multiply

t = 3 × 10.64

t = 31.92 h

Therefore, it will take 31.92 h for lead-212 to decay to one-eighth its original strength.

Answer:

No change.

Explanation:

In isothermal process, ∆T = 0.

Therefore, ∆U =0

Hence, there is no change in internal energy.

The development of physics concepts depends heavily on measurements because measurements are needed to prove ideas true or false,accurate measurements are crucial in physics as they allow us to test hypotheses, validate theories, and ultimately expand our understanding of the physical world.

Measurements contribute to the accumulation of evidence that supports or refutes a particular concept. Scientific theories and concepts are developed through a combination of empirical observations, experimental data, mathematical modeling, and logical reasoning.

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The graph shown in the first option nicely plots the lion's and gazelle's velocities as a function of time, so option A is the correct answer.

Velocity is the rate of change of displacement over time.

As mentioned in the problem of running at a constant speed towards a gazelle with a standing lion as shown above.

So option A is correct.

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Answer: In turn, your weight would also double.

Explanation:

This is because the perceived weight of an object is directly proportional to its mass, which means that if the mass doubles, then the weight doubles.

The type of electrical signal that exhibits an all-or-none response is action potential. So, option A is accurate.

An action potential is a rapid and brief reversal of the electrical potential across a cell membrane, which occurs in excitable cells such as neurons and muscle cells. It is characterized by an all-or-none response, meaning that once the threshold stimulus is reached, the action potential is generated at full strength regardless of the strength of the initial stimulus.

In an all-or-none response, the action potential either occurs fully or does not occur at all. If the stimulus reaches the threshold level, the cell membrane depolarizes and generates an action potential that propagates along the length of the neuron or muscle fiber. However, if the stimulus does not reach the threshold, no action potential is generated.

This property of all-or-none response ensures the consistency and reliability of signal transmission in the nervous system. It allows for the generation of precise and rapid electrical signals that can propagate over long distances without losing their strength or information content.

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Answer:

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The value of resistivity and conductivity are mentioned below.

What is resistivity ?

A conductor with a unit cross-sectional area and unit length and its electrical resistance. Resistivity, a distinctive quality of any material, is helpful in comparing different materials based on their capacity to conduct electric currents. Poor conductors are identified by high resistance.

What is conductivity ?

A substance or material that permits electricity to flow through it is referred to as an electrical conductor. When voltage is given to a conductor, electrical charge carriers, often electrons or ions, travel easily from atom to atom.

Part a is explained by using the concept of diffusion current density and Einstein's relation

from semiconductor we have

T mobility

V= μE

Drift velocity

I = ncAvl

J also equal to E

σE= nevd

σ= nevd/E

σ= neμ

resistivity is reciprocal of conductivity

S= 1/σ=1/neμ

from Einstein's equation

∫= KT/ ne²Dn

Therefore, value of resistivity and conductivity are mentioned below.

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The uncertainty of the mass in kilograms is 2.1 kg.

In taking measurements of quantities, there is always an in inherent error that results known as uncertainty.

Every instrument has an uncertainty level.

Given the percentage uncertainty as 3%.

Uncertainty = 3% × 70kg

Uncertainty = 2.1 kg

Therefore, the uncertainty in kilograms is 2.1 kg.

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Answer:

d. are easily compressible.

Explanation:

Solids and liquids are not easily compressible while gas is.

As the base of the ladder is shifted toward the wall, the following changes will occur:

(a) The normal force on the ladder from the ground will increase.

(b) The force on the ladder from the wall will stay the same.

(c) The static frictional force on the ladder from the ground will increase.

(d) The maximum value fs,max of the static frictional force will stay the same.

In the case of a ladder leaning against a wall, there are several forces acting on the ladder: the force of gravity pulling the ladder downward, the normal force of the ground pushing upward on the ladder, the force of the wall pushing on the ladder, and the force of static friction between the ladder and the ground preventing it from sliding.

When the base of the ladder is shifted toward the wall, the angle between the ladder and the ground decreases, which means that the force of gravity acting on the ladder now has a larger component parallel to the ground. This means that the normal force of the ground pushing upward on the ladder must increase to counteract this component and prevent the ladder from sliding.

The force of the wall pushing on the ladder stays the same, as the wall itself is not moving.

The static frictional force on the ladder from the ground also increases, as it must now counteract the larger component of the force of gravity parallel to the ground.

Finally, the maximum value of the static frictional force also increases, as it is directly proportional to the normal force of the ground.

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The force on the ladder from the wall will stay the same in magnitude. This is because the force is determined by the weight of the ladder and the weight of the person climbing it, which do not change. The angle at which the ladder is leaning against the wall may change, but this will not affect the magnitude of the force.

However, if the ladder is pushed or pulled in any direction, this will change the force on the ladder from the wall. It is important to remember that the force on the ladder from the ground may change depending on the weight distribution and the angle at which it is leaning.

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Answer:

45

Explanation:

The mass number is 80

Proton number is 35

A-P=n

80-35=45

Answer:

A. Analog signal

Explanation:

:)

Answer: A

Explanation:

Increasing the pressure inside the extruder barrel is not a function of the screen pack and breaker plate.

The screen pack and breaker plate have several functions, including:
1. Filtering out contaminants and impurities from the molten plastic.
2. Creating uniform melt flow.
3. Reducing pressure fluctuations.
However, they do not serve to increase the pressure inside the extruder barrel.

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As a result, in the hilly area where it is hot and it rains frequently, water erosion is more likely to affect the landforms there.

It rains frequently where it is warm, rainy, and humid because evaporation and cloud formation occur at a much faster pace in these conditions.

Landforms are directly impacted by this, particularly in steep areas. It's because one of the things that causes the rocks to weather and erode in this area is the water. While erosion refers to the movement of the rock fragments, weathering refers to the breakdown of the rocks.

When water is moving, the rock minerals dissolve. Compared to hard rocks, soft rocks erode more easily. Additionally, quickly worn and eroded are the carbonate rocks. As a result, the geography of the region is altered.

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Answer:the answer is b

Explanation:

This is because in an ionic bond negative and positive bonds are present