a box is dropped onto a conveyor belt moving at 2.4 m/s. the acceleration of gravity is 9.8 m/s 2 . if the coefficient of friction between the box and the belt is 0.4, what distance does the box move before it moves without slipping? answer in units of m.

Answer:

B. Increase in proportion to the wavelength of a wave.

Explanation:

An electromagnetic spectrum refers to a range of frequency and wavelength that an electromagnetic wave is distributed or extends. The electromagnetic spectrum comprises of gamma rays, visible light, ultraviolet radiation, x-rays, radio waves, and infrared radiation.

Electromagnetic waves is a propagating medium used in all communications device to transmit data (messages) from the device of the sender to the device of the receiver.

Generally, the most commonly used electromagnetic wave technology in telecommunications is radio waves.

Radio waves can be defined as an electromagnetic wave that has its frequency ranging from 30 GHz to 300 GHz and its wavelength between 1mm and 3000m. Therefore, radio waves are a series of repetitive valleys and peaks that are typically characterized of having the longest wavelength in the electromagnetic spectrum.

Wavelength is simply the distance from one peak of an electromagnetic wave to the next peak. This distance is also equal to the distance from one trough of a wave to another.

Mathematically, wavelength is calculated using this formula;

\( Wavelength = \frac {speed}{frequency} \)

Hence, the waves in the electromagnetic spectrum have a speed that increase in proportion to the wavelength of a wave.

Answer:

An electromagnet is a form of magnet that is made by the passage of electric current through a coil of wire. The core of an electromagnet increases the strength of the produced magnetic field

Soft iron is used as the core of an electromagnet because soft iron is a magnetic material and therefore it is permeable to and becomes magnetized by the magnetic field coming from the flowing current, thereby allowing more flux to pass through the core of the electromagnet, producing a magnetic field strength that is several times that of an air core electromagnet as the relative permeability (to magnetic flux, compared to vacuum) of soft iron is about 64 × 10³

However, once the current is switched, the soft iron does not remain its magnetic, and therefore, the electromagnet becomes demagnetized, thereby being able to maintain its electromagnetic characteristics (being made magnetic by the flow of electric current)

Explanation:

Centripetal refers to “center-seeking” Quantifies the change in directionof the velocity The acceleration is directed toward the center of the circle of motion.

The magnitude of the centripetal acceleration is given by V^2/r, the direction is toward the center of the circle. The tangential component of the acceleration is due to changing speed. The centripetal component of the acceleration is due to changing direction.

When an object is rotating at a constant angular velocity, the whole object has a constant angular velocity. Therefore, every mint on the turntable has the same, constant angular velocity.

The acceleration which causes the tangential velocity to change direction is called Centripetal acceleration. Centripetal acceleration is always in toward the center of the circle.

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The 0.0104 moles NO2 are reacted.

What is mole?

Chemists use the mole as a crucial unit of measurement. When you have a mole of something, you have 602,214,076,000,000,000,000,000 of that specific thing, just like when you have a dozen eggs, you have twelve eggs. Mole units are used by chemists to measure extremely small objects, such as atoms, molecules, or other particles.

What is concentration?

A solution's concentration is an indicator of how much solute has dissolved in a specific volume of solvent or solution. When there is a significant amount of dissolved solute in a solution, it is said to be "concentrated."

0.00520 moles

N2O5 x 4 moles NO2 / 2 moles

N2O5 = 0.0104 moles NO2 are reacted.

Therefore, the 0.0104 moles NO2 are reacted.

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An e-contract, must meet the same basic requirements (agreement, consideration, contractual capacity, and legality) as a paper contract.

In today's digital age, e-contracts have become increasingly common and serve as legally binding agreements between parties. Like traditional paper contracts, e-contracts require mutual agreement, where both parties express their intent to be bound by the terms of the contract. Consideration, or the exchange of something of value, must be present for the contract to be valid. Additionally, the parties entering into the e-contract must have the contractual capacity, meaning they are of legal age and mentally competent to understand the terms and obligations involved. Lastly, the e-contract must comply with the laws and regulations governing contracts, ensuring that the agreement's subject matter and purpose are lawful. Therefore, e-contracts are subject to the same basic requirements as paper contracts, providing a legally enforceable framework for online transactions.

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We can find that the angle of incidence is approximately 47.9 degrees, and the angle of refraction is approximately 34.9 degrees. The liquid's index of refraction is 1.43.

To solve this problem, we can use the formula for refraction:
n1 sinθ1 = n2 sinθ2
where n1 is the index of refraction of the medium the light is coming from (in this case, air), n2 is the index of refraction of the medium the light is entering (the unknown liquid), θ1 is the angle of incidence (the angle between the incoming light and the normal to the surface of the liquid), and θ2 is the angle of refraction (the angle between the refracted light and the normal).
In this case, we know that the canister appears to be 61 cm away when viewed from the edge of the pool, even though it was dropped 51 cm from the edge. This means that the light is being refracted as it passes from the air to the liquid, making the canister appear closer than it actually is.
Using some trigonometry, we can find that the angle of incidence is approximately 47.9 degrees, and the angle of refraction is approximately 34.9 degrees. We also know that the depth of the pool is 1.30 m.
Plugging all of these values into the formula for refraction, we get:
1.00 sin(47.9) = n2 sin(34.9)
Solving for n2, we get:
n2 = 1.00 sin(47.9) / sin(34.9) = 1.43
Therefore, the liquid's index of refraction is 1.43.

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During time interval t2, the voltage is decreasing from the maximum value to 0, as the magnetic flux linkage with the coil is reduced.

When an isolated magnetic North pole is discovered and dropped through the set-up (magnet through a coil experiment), there is a change in magnetic flux linkage within the coil. Therefore, the induced electromotive force (EMF) will cause a voltage pattern to form.The Faraday's Law of Electromagnetic Induction states that when there is a change in magnetic flux linkage within a coil, an EMF is induced in the coil.

In this scenario, the magnetic flux linkage increases as the magnetic North pole enters the coil and decreases when it exits the coil, which will result in a change in the direction of the induced EMF within the coil.The voltage pattern obtained from the experiment depends on the rate at which the magnetic North pole is dropped through the set-up and the number of turns of the coil.

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The speed with which the train reaches the rock slide is 19.36 m/s

This is defined as the rate of change of velocity which time. It is expressed as

a = (v – u) / t

Where

The initial velocity of the train can be obtained as illustrated below:

–1.6 = (0 – u) / 12.1

Cross multiply

0 – u = –1.6 × 12.1

– u = –19.36

Divide both sides by –1

u = –19.36 / –1

u = 19.36 m/s

Thus, the train uses 19.36 m/s to reach the rock slide

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Venus completes around 3 orbits for every orbit of Mars, given their respective orbital periods of 0.615 years and 1.88 years.

Venus and Mars have different orbital periods, with Venus completing one orbit around the Sun in approximately 0.615 years, while Mars takes about 1.88 years to complete its orbit. To determine the number of Venus orbits for each Mars orbit, we can divide the orbital period of Mars by that of Venus.

By dividing the orbital period of Mars (1.88 years) by the orbital period of Venus (0.615 years), we get approximately 3.06. This means that Venus completes about 3 orbits for each orbit of Mars.

Venus and Mars are both planets in our solar system, and each has its own unique orbital period, which is the time it takes for a planet to complete one orbit around the Sun. The orbital period of Venus is approximately 0.615 years, while the orbital period of Mars is about 1.88 years.

To determine the number of orbits Venus makes for each Mars orbit, we divide the orbital period of Mars by the orbital period of Venus. In this case, we divide 1.88 years (the orbital period of Mars) by 0.615 years (the orbital period of Venus).

The result of this division is approximately 3.06. This means that Venus completes approximately 3 orbits for every orbit that Mars completes. In other words, as Mars is completing one orbit around the Sun, Venus has already completed about 3 orbits.

This difference in orbital periods is due to the varying distances between the planets and the Sun. Venus orbits closer to the Sun than Mars, which results in a shorter orbital period for Venus compared to Mars.

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Modest evidence suggests that young people who commit crimes deserve to service their entire lives in prison. Modicum demonstrates that despite the fact that children commit crimes, they do not merit the harsh punishment Dutton received while incarcerated.

The court stated that because of their youth, they are more impulsive, more susceptible to social pressure, and less able to see the repercussions of their actions. Their brains are also reportedly less developed. There are 79 of these juvenile killers alive today; they will all perish in jail.
Context is crucial when discussing juvenile punishment instances. The juvenile death sentence was abolished by the Supreme Court in 2005 on the grounds that children are not the same as adults. Younger people, according to the court, have brains that are actually less developed, are more impulsive, are more susceptible to social pressure, and are less able to see the effects of their actions.
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to investigate the issue of juvenile offenders in the United States receiving life sentences without the possibility of release.

The article's primary goal is to draw attention to the problem of juvenile offenders in the United States receiving life sentences without the possibility of release. In this article, the impact of this sentencing strategy on juvenile offenders is examined, and the fairness of such sentences is questioned. The author's claim that these punishments are ineffectual and unjust is supported by data and evidence. The paper also urges a shift in strategy and offers substitutes that give young offenders priority in rehabilitation and restorative justice.

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Answer:

Mass of box = 7 kg

Explanation:

Force = 70 N

Acceleration = 10 m/s²

Force is product of mass and acceleration.

\( \longrightarrow \) Force = Mass × Acceleration

\( \longrightarrow \) 70 = Mass × 10

\( \longrightarrow \) Mass = \( \sf \dfrac{70}{10} \)

\( \longrightarrow \) Mass = 7 kg

When deconstructing a medical term, the first element that should be identified is the prefix. By recognizing the prefix, one can break down the term into its individual components and comprehend the term's significance.

Medical terms are often composed of multiple parts, including prefixes, roots, and suffixes. The prefix is the element that appears at the beginning of a medical term and provides additional meaning or context. It can modify or specify the root word that follows it.

Identifying the prefix is crucial when deconstructing a medical term because it helps in understanding the term's overall meaning. It provides important information about location, time, quantity, or other specific characteristics related to the medical term.

By recognizing the prefix, one can break down the term into its individual components and comprehend the term's significance. Analyzing the root word and suffix separately further aids in understanding the term's specific medical concept or condition.

Therefore, when deconstructing a medical term, the first element to identify is the prefix, as it sets the foundation for interpreting the term's meaning and plays a significant role in medical terminology comprehension.

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Answer:

spoon and scissors belong to first class lever.

hope it is helpful to you

Answer:

the answer is letter D.

Explanation:

i hope this is help

Answer:

great answer warstep8! add me on disc colludy#8415

Explanation:

Answer:

50 g

Explanation:

Scalar quantity are physical quantities that have just magnitude, not direction.

Answer:

130+60=190

Explanation:

i.e. if you asked for the distance covered by the person

The aurora is a natural light display in the sky, typically seen in high-latitude regions (around the poles). It is caused by the collision of charged particles from the sun with atoms in the Earth's atmosphere.

The aurora requires four things to appear:

Solar wind: The aurora is triggered by the solar wind, which is a stream of charged particles from the sun.

Earth's magnetic field: Earth's magnetic field guides the charged particles from the solar wind towards the poles, where they collide with atoms in the atmosphere and produce the aurora.

Atmosphere: The aurora is formed when charged particles from the solar wind collide with atoms in the Earth's atmosphere. These collisions release energy, which is typically seen as a light show.

Location: The aurora is typically seen in high-latitude regions (around the poles). This is because the Earth's magnetic field is strongest at the poles, which means that the solar wind particles are more likely to be guided there.

Venus does not have a strong magnetic field. This means that the solar wind particles are not guided towards the poles, and so they are unable to collide with atoms in the Venusian atmosphere and produce an aurora.

The magnetic field on Venus is around 20,000 times weaker than that on Earth. This is because Venus does not have a molten iron core, which is the source of Earth's magnetic field.

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The total resistance in the circuit is 144Ω, and the total current is approximately 0.694A.

To find the total resistance and total current in the given circuit, let's break down the steps:

1. Delta to Wye Transformation:

  - Identify the resistors in the delta configuration: 200Ω, 40Ω, and 120Ω.

  - Apply the delta to wye transformation to convert the resistors into a wye configuration:

    - R₁ = (Rb * Rc) / (Ra + Rb + Rc) = (40 * 120) / (200 + 40 + 120) = 16Ω

    - R₂ = (Ra * Rc) / (Ra + Rb + Rc) = (200 * 120) / (200 + 40 + 120) = 96Ω

    - R₃ = (Ra * Rb) / (Ra + Rb + Rc) = (200 * 40) / (200 + 40 + 120) = 32Ω

  - Replace the delta configuration with the wye configuration using the calculated values: R₁ = 16Ω, R₂ = 96Ω, R₃ = 32Ω.

2. Total Resistance Calculation:

  - The total resistance (RT) in the circuit is the sum of the individual resistances:

    - RT = R₁ + R₂ + R₃ = 16Ω + 96Ω + 32Ω = 144Ω.

3. Total Current Calculation:

  - The total current (I) can be calculated using Ohm's Law: I = V / RT, where V is the voltage across the circuit.

  - Given that the voltage (V) is 100V, the total current (I) is: I = 100V / 144Ω = 0.694A.

Therefore, the total resistance in the circuit is 144Ω, and the total current is approximately 0.694A.

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Answer:

C

Explanation:

I would have to say C because the girl is constantly moving in the act of serving the volleyball.

Answer: the process of an animal or plant breeding with an individual of another species or variety

Explanation:

there you go

Answer:

In chemistry, orbital hybridization (or hybridization) is the concept of mixing atomic orbitals into new hybrid orbitals (with different energies, shapes, etc., then the component atomic orbitals) suitable for the pairing of electrons to form chemical bonds in valence bond theory.

Explanation:

just copied it :|

The angle of incidence given in the problem (12 degrees) is less than the critical angle, there will be no internal reflection. The light ray will refract out of the liquid and into the air.

The angle of internal reflection, we need to use the concept of critical angle. The critical angle is the angle of incidence at which the refracted angle is 90 degrees. At any angle of incidence greater than the critical angle, the light will be totally reflected back into the liquid.

The formula for calculating the critical angle is:

sin(critical angle) = 1 / n

where n is the index of refraction of the liquid.

In this case, the index of refraction of the unknown liquid is 1.30. So, we can calculate the critical angle as:

sin(critical angle) = 1 / 1.30

critical angle = sin^-1(1 / 1.30)

critical angle = 48.6 degrees

The angle of incidence given in the problem (12 degrees) is less than the critical angle, there will be no internal reflection. The light ray will refract out of the liquid and into the air.

The answer is: there is no internal reflection in this scenario.

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Answer:

Acceleration is the rate of change of velocity. Usually, acceleration means the speed is changing, but not always. When an object moves in a circular path at a constant speed, it is still accelerating, because the direction of its velocity is changing. Comment on robshowsides's post “Speed is the magnitude of velocity.

Explanation:

hope it helped tee hee

The electric field midway between 40 C of charge is 4 x 10⁴ N/C.

To find the electric field halfway between the charges, we can use the formula for the electric field due to a point charge:
E = k × q / r²
where E is the electric field, k is the electrostatic constant (8.99 x 10⁹ N·m²/C²), q is the charge, and r is the distance from the charge.
Step 1: Convert the distance to meters
6 km = 6000 meters
Step 2: Calculate the distance halfway between the charges
Halfway distance, r = 6000 meters / 2 = 3000 meters
Step 3: Plug the values into the formula
E = (8.99 x 10⁹ N·m²/C²) * (40 C) / (3000 m)²
Step 4: Calculate the electric field
E ≈ 4 x 10⁴ N/C
The electric field halfway between the charges in the thundercloud is approximately 4 x 10⁴ N/C. This illustrates the large electric fields one might experience in such situations.

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Explanation:

the velocity of sound in air is 330m/s

and v=fh, where h is wavelength f is frequency,

h=v/f.......(1)

longer wavelength

h=330/20,h=16.5m

shorter wavelength

h=330/20000,h=1.65x10-²m

The lesser frequency was used for finding the longer wavelength since wavelength is inversely proportional to frequency,

thus an increase in frequency brings a decrease in wavelength.

and shorter wavelengths are more high and intense

hope this helps

Answer:

The dimensional formula for specific latent heat is L²/T²

Explanation:

The unit of specific latent heat is J/kg

Explanation:

it is equal to the speed (v) of a wave train in a medium divided by its frequency (f): λ = v/f. Waves of different wavelengths.

Answer:

It is measured in the direction of the wave. Description: Wavelength is the distance from one crest to another, or from one trough to another, of a wave (which may be an electromagnetic wave, a sound wave, or any other wave).