2 energy 2) Place the following energy types in the order that BEST represents the energy conversion in a coal-burning power station. 1. Electrical energy 2. Kinetic energy 3. Chemical energy 4. Thermal energy​

A. Wearing appropriate running shoes for your environment is an example of being proactive in your workouts.

There are several ways to become proactive in workouts:

(1) Set specific goals: Setting specific and measurable fitness goals can help you stay focused and motivated. It can also help you track your progress and make necessary adjustments to your workout routine.

(2) Plan your workouts: Planning your workouts ahead of time can help you stay organized and committed to your fitness routine. This can include scheduling your workouts in advance and creating a workout plan that targets your specific goals.

(3) Track your progress: Tracking your progress can help you stay motivated and see how far you've come. This can include keeping a workout journal, taking progress photos, or using a fitness tracker.

(4) Stay consistent: Consistency is key when it comes to achieving fitness goals. Set a regular workout schedule and stick to it as much as possible.

(5) Listen to your body: Pay attention to how your body feels during and after workouts. If something doesn't feel right, make adjustments or seek guidance from a fitness professional.

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Answer:

it's b or the second one

Explanation:

The magnitude of the magnetic field after the change can be found using the formula:

B2 = B1 * (I2 / I1)

Where B1 is the initial magnetic field (4.0 x 10^-3 T), I1 is the initial current (3.20 A), I2 is the final current (6.40 A), and B2 is the final magnetic field (what we're trying to find).

Plugging in the values:

B2 = (4.0 x 10^-3 T) * (6.40 A / 3.20 A)

B2 = 8.0 x 10^-3 T

So the magnitude of the magnetic field after the change is 8.0 x 10^-3 T.

The  wavelength at which the object emits the most radiation is 1.12 micrometers.

We use  Wien's displacement law in order to find the wavelength at which the object emits the maximum radiation.

The temperature of the item has an inverse relationship with the peak wavelength of the radiation it emits according to Wien's displacement law,

The formula of  Wien's displacement law,  is given as

λ_max = b/T

where λ_max =e peak wavelength of emitted radiation,

T = temperature of the object in Kelvin, and

b = Wien's displacement constant 2.898 × 10^-3 mK.

T = 2310°C + 273.15 = 2583.15 K

λ_max = (2.898 × 10^-3 mK) / 2583.15 K

λ_max = 1.12 × 10^-6 m = 1.12 μm

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The following statements accurately describe matter:

Matter is made up of tiny particles called atoms.

Atoms cannot be divided and still retain the properties of their original state.

What is Atom?

An atom is the basic unit of matter, consisting of a nucleus composed of protons and neutrons, surrounded by electrons in electron shells or energy levels. Atoms are the building blocks of all matter and are the smallest unit of an element that retains the chemical properties of that element.

The statement "Atoms cannot be divided and still retain the properties of their original state" refers to the concept of the indivisibility of atoms, as proposed by John Dalton in the early 19th century. According to Dalton's atomic theory, atoms are considered to be the smallest unit of matter that retains the properties of an element. In other words, atoms are considered to be indivisible and cannot be further broken down into smaller particles without losing their characteristic properties.

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When Emilia goes from point A to point B, her energy shifts from potential to kinetic, and from kinetic to potential as she moves from point B to point C.

Energy is a key idea in physics that describes a system's capacity for work. Energy is a scalar quantity that may be transformed between many different forms and is a measure of a system's capacity to perform work.

Emilia's gravitational potential energy reduces as she goes from point A to point B because she gets closer to the earth. However, when she picks up speed, the conversion of potential energy to kinetic energy causes her kinetic energy to rise. All of Emilia's potential energy has been transformed into kinetic energy at point B.

Emilia's kinetic energy falls as she advances from point B to point C because gravity is working against her motion, slowing her down. However, when she moves farther from the earth, her potential energy rises. Emilia is at her highest point in her swing at point C, when all of her kinetic energy has been transformed back into potential energy.

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If the thermal parameters of the reacting chemical milieu are progressively enhanced to values approaching the uppermost feasible threshold limits, then the kinetic molecular energies of the constituent particles subsisting within that milieu will inevitably become extraordinarily amplified to magnitudes of near infinite proportions. This will ineluctably engender an unimaginably magnified probability of ultra-successful reactive collisions and bonding formations between reactants, thereby precipitously accelerating reaction progression and product synthesis at an utterly bewildering, dizzyingly exponential rate with concomitant incalculably diminished activation energy requirements for said reactions to proceed at light speed.

Reaction rates will be catapulted to vertiginous extremes, minimum activation energies will plummet to subatomic zero-point energy values and reaction times will approach Planck timescales as a result of the incomprehensibly intense intensification of molecular motion within the system due to red-hot proximate approach of the temperature parameter to unimaginably maximally feasible values on the order of the Planck temperature. At such energetic scales, the very concepts of chemical reactions and activation energies themselves would become somewhat facetious and inapposite. Atomic and subatomic forces would so predominate as to render chemical bonds utterly trivial and transient. The system would essentially comprise frenetic elementary particles reacting within an amalgam of radiation and plasma.

The system's final temperature is roughly 16.7°C.

You may determine your substance's final heat by multiplying the temperature change by the initial temperature. Your water's final temperature would be 24 + 6, or 30 degrees Celsius, for instance, if it started off at 24 degrees Celsius.

The following is the formula for energy conservation:

Q1 + Q2 = 0

Q = mcΔT

Q1 + Q2 = 0

568.8

Simplifying and solving for

6394.4 - 106768 = 0

= 16.7°C

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Answer:

ttrockstars

Explanation:

it's math you to be an expert at math thank you

(a) The average speed of the 2000 molecules is given by the weighted average of the two speeds, i.e., 55.0 m/s. (b) 56.9 m/s (c) the average speed of the molecules is 1240 m/s.

Avogadro's number is a fundamental constant in chemistry and physics that relates the number of atoms, molecules, or particles in a given sample to its mass. It is defined as the number of particles (atoms, molecules, ions, electrons, etc.) present in one mole of a substance, which is approximately 6.022 x 10²³ particles per mole.

(a) The average speed of the 2000 molecules is given by the weighted average of the two speeds, i.e.,

average speed = [(1000 molecules) (20.0 m/s) + (1000 molecules) (90.0 m/s)] / (1000 molecules + 1000 molecules) = 55.0 m/s.

(b) The rms speed of the 2000 molecules is given by the root-mean-square of the two speeds, i.e.,

rms speed = √ [((1000 molecules) (20.0 m/s) ² + (1000 molecules) (90.0 m/s) ²) / (1000 molecules + 1000 molecules)] = 56.9 m/s.

(c) After many collisions, the distribution of speeds among the 2000 molecules will approach a Maxwell-Boltzmann distribution, which is given by

f(v) = (m / [tex](2pikT)^{\frac{3}{2} }[/tex]) * 4piv² * exp (-mv² / (2kT))

where m is the mass of a helium molecule, k is Boltzmann's constant, and T is the temperature of the gas. The average speed of the molecules is given by

< v > = √((8kT) / (pi*m))

and the rms speed is given by

v_rms = √((3kT) / m)

where < v > and v_rms are the mean and rms speeds, respectively. Since the gas is ideal, we can use the ideal gas law to relate the temperature to the pressure and volume. Specifically,

P V = n R T

where P is the pressure, V is the volume, n is the number of moles of gas, R is the gas constant, and T is the temperature. Since the container is rigid, the volume is constant, and we can write.

P = n R T / V

Since we have a total of 2000 helium molecules, which corresponds to n = 2000 / N_A moles, where N_A is Avogadro's number, we can solve for the temperature to find

T = P V / (n R) = P V N_A / (2000 R)

where we have used the fact that n = 2000 / N_A. Substituting the given values, we find

T = (4.00e5 Pa)(2.00 L)(6.02e23 / 2000 molecules/mol) / (2000 J/mol/K) = 1600 K

Therefore, the average speed of the molecules is.

< v > = √((8kT) / (pim)) = √ ((81.38e-23 J/K)(1600 K) / (pi*4.00e-3 kg/mol)) = 1360 m/s

and the rms speed is

v_rms = √((3kT) / m) = √((3*1.38e-23 J/K)(1600 K) / (4.00e-3 kg/mol)) = 1240 m/s.

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The electric force between two point charges is given by the equation

[tex]F=k*q_1*q_2/r^2[/tex]

The interaction between two things is measured by the physical quantity known as force. It is a vector quantity, and the sign F is frequently used to denote it. When an object interacts with another object, it feels a push or a pull.

where r is the distance between the charges, q1 and q2 are their magnitudes, and k is the Coulomb constant.

When we enter the problem's specified values, we obtain

[tex]2.2N=8.99*10^9\ N*m^2/C^2*q*-2q/(1.4 m)^2[/tex]

which simplifies to

q = -0.500 N/C.

Thus, the magnitude of charge q is 0.500 N/C.

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The original temperature of the mercury is 260.6K

To solve this problem, we can use the formula for the heat released during the solidification of a substance:

Q = m * Lf

where Q is the heat released, m is the mass of the substance, and Lf is the heat of fusion of the substance.

In this case, Q = 157 kJ, m = 5.00 kg, and Lf = 11.3 kJ/kg.

We also need to use the formula for the heat absorbed or released during a temperature change:

Q = m * c * ΔT

where Q is the heat absorbed or released, m is the mass of the substance, c is the specific heat of the substance, and ΔT is the change in temperature.

We can use this formula to calculate the heat released as the mercury cools from its original temperature to its melting point, and then use the formula for solidification to calculate the heat released as the mercury solidifies.

Let T be the original temperature of the mercury.

The heat released as the mercury cools from its original temperature to its melting point is:

Q1 = m * c * (T - 234)

The heat released as the mercury solidifies is:

Q2 = m * Lf

The total heat released is:

Q = Q1 + Q2 = m * c * (T - 234) + m * Lf

Substituting the values given in the problem, we get:

157 kJ = 5.00 kg * 140 J/kg . K * (T - 234) + 5.00 kg * 11.3 kJ/kg

Simplifying and solving for T, we get:

T = 260.6 K

Therefore, the original temperature of the mercury was 260.6 K.

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The factor that leads to loess deposit is when the wind carries fine sediment. That is option C.

The loess deposits are those deposits that are usually found at the edge of deserts.

The major factor that causes the formation of loess is the wind because they are entrained, transported, and deposited by the wind.

The fine particles carried by wind contains find grained sediments, organic particles that are capable of forming loess.

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Answer:

correlation is defined as the statistical association between two variables

Explanation:

a correction exits between two variables when one of them is related to the other in some way

Answer: d. increase

Explanation:

If the sun were more massive, the gravitational force between the sun and Earth would increase. This means that Earth's gravity with the sun would also increase. Therefore, the correct answer is (D) increase.

The gravitational force between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between them. So, if the mass of one of the objects increases, the gravitational force between them will also increase. In this case, if the mass of the sun were to increase, the gravitational force between the sun and Earth would become stronger, and hence, Earth's gravity with the sun would also increase.

The Universe became dominated by matter instead of radiation at a redshift of around 3300.

To determine at what redshift the Universe became dominated by matter, we need to find the redshift at which the energy density of matter becomes equal to the energy density of radiation.

Let's start with the energy density of radiation, which can be calculated using the Stefan-Boltzmann law:

$[tex]u_{rad} = \frac{4\sigma}{c}T^4$[/tex]

where $\sigma$ is the Stefan-Boltzmann constant, $c$ is the speed of light, and $T$ is the temperature of the radiation. Since we are assuming that the cosmic microwave radiation is a black-body radiation, we can use the temperature of 2.73 K, which corresponds to the peak of the radiation curve:

[tex]$u_{rad} = \frac{4\sigma}{c}(2.73K)^4 \approx 0.261 \text{ eV/cm}^3$[/tex]

Next, let's calculate the energy density of matter. We know that the number density of baryons is [tex]$n_b \approx \frac{1}{10^9}n_{\gamma}$, where $n_{\gamma}$[/tex] is the number density of photons. Since we are assuming that the photon-to-baryon ratio is constant, we can write:

[tex]$\frac{\rho_b}{\rho_{\gamma}} = \frac{m_b n_b}{\frac{4}{3}\sigma T^4} = \frac{3m_b}{4\sigma T^3 n_{\gamma}} \approx \frac{3m_b}{4\sigma T^3}\frac{1}{n_{\gamma}}$[/tex]

where $m_b$ is the mass of a baryon. Substituting the values, we get:

[tex]$\frac{\rho_b}{\rho_{\gamma}} \approx 4.15 \times 10^{-10}$[/tex]

Since the total energy density of the Universe is given by:

[tex]$\rho_{tot} = \rho_b + \rho_{\gamma}$[/tex]

we can write:

[tex]$\frac{\rho_b}{\rho_{tot}} = \frac{\rho_b}{\rho_b + \rho_{\gamma}} \approx \frac{\rho_b}{\rho_{\gamma}} = 4.15 \times 10^{-10}$[/tex]

At the redshift $z$, the energy density of radiation will be diluted by a factor of $[tex](1+z)^4[/tex]$, while the energy density of matter will be diluted by a factor of $[tex](1+z)^3[/tex]$. Thus, at some redshift $z$, we will have:

$  [tex]\frac{\rho_b}{\rho_{tot}} = \frac{\rho_b}{\rho_b + \rho_{\gamma}} = \frac{1}{1+z}\frac{3m_b}{4\sigma T^3 n_{\gamma}}[/tex]   $

Setting this equal to the value we calculated above, we can solve for $z$:

$   [tex]\frac{1}{1+z}\frac{3m_b}{4\sigma T^3 n_{\gamma}} \approx 4.15 \times 10^{-10}[/tex]  $

$  [tex]1+z \approx \frac{3m_b}{4\sigma T^3 n_{\gamma}}\frac{1}{4.15 \times 10^{-10}}[/tex]  $

$ [tex]z \approx 3300[/tex] $

Therefore, the Universe became dominated by matter instead of radiation at a redshift of around 3300.

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The light ray will deviate from its original path with 19.5° after refraction.

Applying Snell's law to calculate the angle of refraction:

n1 sin θ1 = n2 sin θ2

where n1 and θ1 =  the refractive index and the angle of incidence in the first medium (air),

n2 and θ2 =  the refractive index and the angle of refraction in the second medium (glass).

In this example,

n1 = 1.00 (refractive index of air), θ1 = 30°, and

n2 = 1.5 (refractive index of glass).

We then calculate for  θ2:

n1 sin θ1 = n2 sin θ2

1.00 * sin 30° = 1.5 * sin θ2

0.5 = 1.5 * sin θ2

sin θ2 = 0.5 / 1.5 = 1/3

θ2 = sin^-1(1/3)

θ2 = 19.5°

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Answer:

Part A: [tex]1.97ms^{-1}[/tex] (2 s.f.)
Part B: 0.33m (2 s.f.)

Explanation:

Part A:

Frequency = [tex]\frac{1}{period} = \frac{1}{3}[/tex] Hz

Wavespeed = frequency x wavelength
Wavelength = distance between two crests = 5.90

Freq = 1/3 Hz

Therefore: Wavespeed = 1/3 x 5.90

                  Wavespeed = 1.967 ms^-1

Part B:
Amplitude = [tex]\frac{peak-to-peak- amplitude }{2}[/tex]

Peak to peak amplitude = 0.65m

Amplitude = 0.65/2 = 0.325m = 0.33m 2sf

The above has to do with the study of the earth's lithospheric plates. See the attached image and the explanation below.

The movement of lithospheric plates is a geological process that occurs due to the motion of hot, molten material in the Earth's mantle. The lithosphere, which is the rigid outer layer of the Earth's surface, is divided into several large plates that move relative to each other.

These movements are caused by the convection of material in the mantle and the forces that arise at the boundaries between the plates.

There are three main types of plate boundaries: divergent, convergent, and transform. Divergent boundaries occur where plates move apart from each other, creating new oceanic crust. Convergent boundaries arise where plates collide, leading to subduction, volcanic activity, and the formation of mountains. Transform boundaries occur where plates slide past each other.

The movement of lithospheric plates gives rise to various geological phenomena, such as earthquakes, volcanic activity, and the formation of mountain ranges and ocean basins.

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Answer:

Explanation:

Because you have velocity along the y axis and time along the x axis, this is a velocity v time graph which is an acceleration graph. The slope of the line in this graph IS the acceleration. We can use 2 points and the slope formula to solve for the acceleration:

(0, 0) and (1, 3):

[tex]m=\frac{3-0}{1-0}=3[/tex] m/s squared, choice D.

Answer:

B. Atomic number minus mass number

Explanation:

The energy of the wave is [tex]6.40 * 10^-5 J.[/tex]

Since the bead is small enough, we can assume that its mass is negligible compared to the mass of the string. Therefore, we can treat the string as a uniform linear density system.

The speed of a transverse wave on a string is given by:

v = sqrt(T/μ)

where T is the tension in the string and μ is the linear density of the string.

The frequency of the wave is related to its wavelength λ by:

v = [tex]\lambda[/tex]f

where f is the frequency.

We can use these equations to solve for T and [tex]\lambda[/tex]

First, let's find the linear density of the string. The linear density is given by:

μ = m/L

where m is the mass of the string and L is its length. Since we don't have the mass and length of the string, we cannot determine its linear density.

However, we can still find the wavelength λ using the equation:

[tex]\lambda[/tex] = v/f

We know the frequency f is 20.0 Hz. To find the speed of the wave v, we need to know the tension T in the string. The tension in the string is equal to the weight of the hanging mass. The weight of the mass is:

w = mg

where g is the acceleration due to gravity (9.81 m/s^2).

Therefore, the tension in the string is:

T = mg

Substituting this expression for T into the equation for v, we get:

v = sqrt(T/μ) = sqrt((mg)/μ)

Substituting the given values, we get:

[tex]v = \sqrt((4.50 x 10^-3 kg)(9.81 m/s^2)[/tex]/μ)

Simplifying this expression requires the linear density of the string, which we don't have. So, we cannot determine the speed of the wave or the wavelength.

However, we can determine the energy of the wave. The energy of a wave is proportional to the square of its amplitude:

E ∝ A^2

Substituting the given values, we get:

E ∝[tex](0.800 * 10^-2 m)^2[/tex]

Simplifying this expression, we get:

E ∝[tex]6.40 * 10^-5 J[/tex]

Therefore, the energy of the wave is [tex]6.40 * 10^-5 J.[/tex]

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A sound that is 7.8x10-4 W/m2 in intensity is equal to (10 dB)log3.2106 W/m21012 W/m2=185 dB.

The decibel, often known as the db or 0.1 bel, is the standard measurement unit. Hence, b = 10 log10 (I/I0) can be used to express the relationship between relative intensities, or b, in decibels. This equation can be used to determine that one decibel equals a 26 percent intensity variations.

The "decibel level" of a sound is a less formal term for relative intensity level. It is not the same as energy; relative intensity level reflects loudness more faithfully by using a logarithmic scale.

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a) Yes, the girl has kinetic energy with respect to the escalator since she is moving relative to it.

b) Yes, the kinetic energy of the girl depends on the chosen reference frame. If we consider the reference frame of the man who is stationary on the ground, then the girl has kinetic energy with respect to him as well.

However, if we choose a reference frame that is moving at the same velocity as the escalator, then the girl appears to be at rest and does not have any kinetic energy with respect to that reference frame.

It's important to note that the amount of kinetic energy the girl has will be different in each reference frame, but the total amount of energy she has (kinetic energy + potential energy) will be the same in all reference frames, as long as we ignore any energy losses due to friction. This is because energy is conserved, and it can only be transferred between different forms, but not created or destroyed.

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The volume flow rate of water through the pipe is approximately 0.00295 cubic meters per second.

The volume flow rate of water through a pipe can be calculated using the formula:

Volume flow rate = Area of the pipe × Velocity of water

The area of the pipe can be calculated using the formula for the area of a circle:

Area of circle = π × (radius)^2

Plugging in the given values:

Radius (r) = 0.0250 m

Velocity (v) = 1.50 m/s

Area of circle = π × (0.0250 m)^2 = 0.001963495 m^2 (rounded to 9 decimal places)

Now, we can use the calculated area and the given velocity to calculate the volume flow rate:

Volume flow rate = Area × Velocity = 0.001963495 m^2 × 1.50 m/s = 0.002945243 m^3/s (rounded to 9 decimal places)

Rounding to 3 sig figs. we get:

0.00295 m^3/s

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Answer:

Look below.

Volume expansion of a gas              Gas thermometer

Volume expansion of a liquid           Laboratory or clinical thermometer

Volume expansion of a solid     Bi-metallic strip thermometer

Pressure change of a fixed mass of gas    Constant – volume gas  thermometer

The speed of the car and truck after the collision is approximately 8.11 m/s.

What is Mass?

Mass is a measure of the amount of matter in an object. It is a scalar quantity that reflects the resistance of an object to acceleration when a force is applied to it. Mass is typically measured in units such as kilograms (kg) or grams (g) in the metric system, or pounds (lb) or ounces (oz) in the customary system.

Total momentum before collision = Total momentum after collision

(Momentum of car before collision + Momentum of truck before collision) = Total mass of car and truck × Common velocity after collision

Plugging in the given values for the masses and velocities:

(1200 kg × 25 m/s + 2500 kg × 0 m/s) = (1200 kg + 2500 kg) × V

Solving for V:

V = (1200 kg × 25 m/s) / (1200 kg + 2500 kg)

V = 30000 kg·m/s / 3700 kg

V ≈ 8.11 m/s (rounded to two decimal places)

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The frequency of the tsunami wave is estimated at  0.001 Hz

Frequency is described as the number of occurrences of a repeating event per unit of time

Using  the formula for the speed of a wave:

v = λ  x frequency

where v is the wave speed, λ is the wavelength, and f_ is the frequency.

frequency = v / λ

Substituting  the values given in the problem, we have

frequency  = 750 km/h / 270 km = 2.78 h^(-1)

f_ = 2.78 h^(-1) * (3600 s/h) = 1.00 x 10^(-3) s^(-1) or   0.001 Hz

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The speed of air passing over an airplane wing is an important factor in determining the lift generated by the wing. The faster the air moves over the wing, the greater the lift that is generated.

Air is a mixture of gases that makes up the Earth's atmosphere. It is composed primarily of nitrogen (78%) and oxygen (21%), along with small amounts of other gases such as argon, carbon dioxide, neon, and helium. The composition of air can vary depending on factors such as altitude, location, and weather conditions.

Air plays a vital role in supporting life on Earth, providing us with the oxygen we need to breathe and helping to regulate the planet's temperature and climate. It also plays an important role in various natural processes, including the water cycle, plant growth, and the formation of weather patterns.

Air is used in a wide range of human activities, including transportation, heating and cooling systems, industrial processes, and combustion for energy production. However, human activities can also contribute to air pollution, which can have negative impacts on human health and the environment.

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The wavelength of the electron is 1.724 × 10^-12 m.

The wavelength of the electron is found  using the de Broglie wavelength formula:

λ = h / p

where λ = wavelength,

h= Planck's constant, a

p =  momentum of the electron.

we find  the momentum of the electron,

p = m * v

p = (9.1 × 10^-31 kg) * (4.2 × 10^7 m/s)

p = 3.822 × 10^-22 kg m/s

Therefore, wavelength ;

λ = h / p

λ = (6.6 × 10^-34 J s) / (3.822 × 10^-22 kg m/s)

λ = 1.724 × 10^-12 m

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