true or false all the frequencies that form standing waves on a string are counting number multiples of the frequency of the largest standing wave that can form on that string.

The de Broglie wavelength is 1.24 × 10⁻¹⁸ m.

What is de Broglie equation?

Specifically, the wave character of the electron is described by the de Broglie equation, which is an equation used to describe the wave aspects of matter. De Broglie proposed that particles can display characteristics of waves using the formula λ= h/mv, where λ is the wavelength, h is Planck's constant, and m is the mass of a particle travelling at a velocity of v.

Given,

K = 1.0 TeV

The energy of particle moving with a high speed is

=E² = p²c² + (m₀c²)²

Where,

p = momentum of the particle

m₀ = rest mass

∴ Momentum of the particle=

p²c² = E² - (m₀c²)² = p²

So, the de Broglie wavelength for the given particle,

λ = [tex]\frac{h}{p}[/tex] = [tex]\frac{hc}{\sqrt{E^{2}-(m_{0}c^{2})^{2}} }[/tex]

Now, the total energy of the particle is

= E = K + [tex]m_{0}[/tex]c²

Where,

K = Kinetic energy of the particle

λ[tex]_{p}[/tex] = [tex]\frac{hc}{\sqrt{E^{2}- (m_{0}c^{2})^{2}} }[/tex]

   = [tex]\frac{hc}{\sqrt{(K + m_{0}c^{2})^{2} - (m_{0}c^{2})^{2}} }[/tex]

   = [tex]\frac{hc}{\sqrt{K^{2} + 2Km_{0}c^{2} + (m_{0}c^{2})^{2} - (m_{0}c^{2})^{2}} }[/tex]

   = [tex]\frac{hc}{\sqrt{K^{2} + 2Km_{0}c^{2}} }[/tex]

   = [tex]\frac{4.1357 X 10^{-15}eVs X 3 X 10^{8}ms^{-1}}{\sqrt{(1.0 X 10^{12})^{2} + 2 X 1.0 X 10^{12} X 938.28 X 10^{6}eV^{2}} }[/tex]

   = 1.24 × 10⁻¹⁸ m

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Mechanical energy is: True, Mechanical energy is chosen because the roller coaster choose will have large potential energy.

Mechanical energy is the sum of capability strength and kinetic energy. it's far the power related to the motion and role of an object. as an instance, a shifting vehicle possesses mechanical power in the shape of kinetic power, a compressed spring possesses mechanical power in the shape of potential power.

There are two kinds of mechanical electricity – movement (kinetic power) and saved (ability power). you can learn more in our manual that explains capacity and kinetic energy. Mechanical conversion depends on the quantity of capability energy an object has and what kind of kinetic strength it is able to produce.

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The change in internal energy of car will be 13.5 cal.

The internal energy of an ideal gas is a good approximation of a real system. In such a system, particles in an ideal gas appear as point objects that collide with each other in a perfectly elastic way. The actual behavior of monatomic gases (helium, argon, etc.) reflects this model.

For an ideal gas, the internal energy is proportional to the number of moles of gas and its temperature: U = cnT

Gibbs free energy is increasing as the curve of entropy.

The first law of thermodynamics states that the increase in internal energy is equal to the total heat input plus the work done by the environment. For isolated systems, it remains constant.

Q=u+w

u=Q-w

=13.5cal

since no reaction happened.

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The total energy of the system is 0.01089 joules.

The mass of the object is, m = 0.35 kg

The spring constant is, k = 24.2 N/m

The amplitude of the motion is, A = 3 cm

The relationship of the total energy of the system is given by the following:

[tex]E_{T} = 1/2KA^{2}[/tex]

Substitute the values in the above relationship.

[tex]E_{T} = 1/2[(24.2 N/m (3cm * 1m/100cm)^{2} ][/tex]

   = 0.01089 joules

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The simplest ratio of squares to total shapes if we have 8 squares and 10 circles is 4:9.

What is Ratio?

A ratio is said to be is the simplest form or in the lowest term if two quantities of a ratio (i.e., antecedent and consequent) have no common factor (i.e. antecedent and consequent are co-prime) other than 1 (or their HCF is 1). The ratio must always be expressed in its simplest form or in its lowest terms.

Now,

There are 8 squares and 10 circles.

We have, total shapes = 8 + 10 = 18

Hence, The simplest ratio of squares to total shapes = 8 : 18 = 4 : 9

So, The simplest ratio of squares to total shapes is 4 : 9

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If two separate containers A and B have the same volume and temperature, but container A has more gaseous molecules than B, then the container A will have higher pressure than container B.

According to the approximations of ideal gas conditions, the pressure of a gas is directly proportional to the number of molecules of a gas at constant temperature and volume.

Having this in mind, at constant temperature and volume, container A has more gaseous molecules than B, then container A will have higher pressure than container B.

Below is the calculation for proof that shows which container has the higher pressure while keeping the volume and temperature the same.

So, V a = V b

n a* T a/ P a = n b* T b/ P b

Here, T a = T b

P a = n a/n b * P b

n a/n b > 1

P a/ P b > 1

P a > P b

Thus, the container A will have higher pressure than container B.

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For an ideal gas in a sealed container, if pressure and volume are made double, then : B.) temperature is now four times its original value.

Ideal gas is an hypothetical condition of gas state where molecules of the gas are spaced widely apart that is the inter molecular force of attraction is negligible. It obeys the equation,

PV = n RT

Here, P is the absolute pressure of the gas

V is Volume occupied by the gas

n is number of moles of gas

R is Gas constant

T is Absolute temperature of the gas

Ideal gas at two different states are given as:

((P1).(V1))/(T1) = ((P2).(V2))/(T2)

Given, P2 = 2*P1, V2 = 2*V1

So, ((P1).(V1))/(T1) = ((2*P1).(2*V1))/(T2)

1/T1 = 4/T2

T2 = 4 times of T1

Temperature of the gas becomes four times on doubling the absolute pressure and temperature of gas.

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0.62 sec is the time that will be required by the boy jumping on trampoline to return back to the starting position.

A trampoline is an activity of jumping up and down and it defines the conservation of energy, from potential into kinetic.

It also describes Hooke's laws and the spring constant. Furthermore, it verifies and illustrates each of Newton's three laws of motion.

Time of flight = 24/g

=2×3/9.8

=0.62 sec

The three forces, acting on the boy are tension of the spring, FBD and gravity (mg).

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The electric and magnetic fields at far zones are 1.66 and 628.33 (...).

With the use of electricity and other types of artificial and natural illumination, invisible energy fields known as electric and magnetic fields (EMFs) and radiation are created.

The sole difference between the total energy (electrical plus magnetic) is that the B field energy rises as the E field energy falls. The magnetic component of the EM wave causes a current in the antenna when it is a coil, such as those employed in long/medium wavelengths.

Both antenna designs have the same distribution of electric and magnetic energy in the far field. Accelerating charges also create radiating fields in addition to the reactive field; stationary charges and charges travelling at constant speed do so. Reactive fields are created as a result of the continual charge drift caused by DC sources.

The complete calculation is attahced.

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Answer:

'brightness' and 'place' (?)

Explanation:

You can tell the distance in both simple and complicated ways; for instance, some methods like using luminosity don't work for all stars*

quote for better understanding:

"Farther methods are usually based on identifying what type of star a given star is, and estimating its luminosity .."

"..We then measure its apparent brightness (how bright it looks)* and do some math to figure out how far away it is."

(more detailed quote):

"By knowing the actual brightness and comparing it to the apparent brightness seen from Earth (that is, by looking at how dim the star has become once its light reaches Earth), they can determine the distance to the star."

Alternatively by observing the position of the star or its place a similar technique is used:

quote:

"Earth orbits the Sun, so it is in a slightly different position in January than in July. Nearby stars will seem to slightly shift in position in our sky relative to far-away stars."

In conclusion-- luminosity is commonly how astronomers know that stars are not all the same distance away from us.

The magnetic flux decreases through the coil.

Due to a change in the angle between B and the coil's axis, the flux decreases.

Magnetic flux :

The magnetic field and the vector corresponding to the coil's area form a dot product, which determines the flux through the coil. The latter vector has a magnitude equal to the coil's area and a direction perpendicular to the plane in which the coil's area is located. The vector S is the vector representing the area of the coil, much like in the attached image. The flux will therefore be at its highest when the vector S points in the same direction as B, and at its lowest when their angles are perpendicular.

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Thrust force of the rocket is, T = 2.264 MN

Thus, the force required to move the rocket through the air is 2.264MN. This force is generated because of Newton's third law of motion.

Thrust is the force which moves the rocket through the air, and through space. Thrust is generated by the application of Newton's third law of motion; "For every action there is an equal and opposite re-action. "

The formula for calculating, thrust force of the rocket is T= vdm/dt

Where, T is the thrust of the rocket

v is th relative speed = 8km/s (given in question)

dm/dt is the mass flow rate = 283kg/s (given in question)

Substituting the values,

T = 8km/s × 1000m/1km × 283kg/s

= 2.264 (10^6N=2.264MN)

Therefore, main answer is that

Thrust force is, T = 2.264 MN

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Atoms' surrounding electron clouds can serve as diffraction gratings and x-ray scattering sites. This makes it possible to determine the structure of molecules as well as the solid-state structure (i.e., the lattice types and unit cell dimensions).

The principles of diffraction are based on Bragg's Law:

nλ=2dsinθ

n is the diffraction order, which is typically 1.

lambda is the radiation's wavelength of incidence

d is the distance between the lattice planes, where

is the angle between the incident radiation and the scattering plane.

Powder x-ray diffraction (PXRD), which gives the cell constants for the solid's unit cell, is used when the material is a powder.

The intensity of the diffraction peaks is utilised to determine all atom locations when the sample is a single crystal, which provides bond lengths and bond angles.

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A 710 kg k g car drives at a constant speed of 23 m/s and is subject to a drag force of 500 N. The required power to drive the car on the ground is 11.5 kW

Power is defined as the amount of work done per unit time.

P = W/Δt

Where:

W = work done

Δt = time period

Since W = F . s  

Hence,

P = F . s/Δt = F . v

Where:

F = force acted on the object

s = distance

v = velocity

Parameters given in the problem:

F = 500 N

v = 23 m/s

Hence, the required power is:

P = (500) (23 ) = 11,500 Watt = 11.5 kW

Your question is incomplete, but most probably your question was:

A 710kg car drives at a constant speed of 23m/s . It is subject to a drag force of 500 N. What power is required from the car's engine to drive the car on level ground?

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Water is transformed into vapour at m is 0.0462 g. Be aware that even at lower temperatures, some water molecules will leave the water's surface since they have high kinetic energy.

At 100 °C, where water boils, the heat of vaporization for water is around 540 cal/g. Be aware that even at lower temperatures, some water molecules will leave the water's surface since they have high kinetic energy.

Water has a mass of 10 kg, a pressure of 101325 Pa, a temperature of 373.15 K, and a latent heat of vapourization of 2230 J.g-1. This water has received 103 J of heat energy.

Now, applying solely the latent heat principle to the heat equation: (since water already at boiling point at atmospheric temperature).

Q = m. The amount of water that becomes vapour is L 103 = m * 2230 m = 0.0462 g.

The complete question is,

A container containing 10 kg of liquid water is kept at 101325 Pa atmospheric pressure. At that pressure, the water is originally at its boiling point of 373.15 K. Water to water vapor has a latent heat of 2230 J/g. Water has a molecular weight of 18 g. The water receives 103 J of heat. 1) How much water evaporates into vapor? mass(vapor)=    

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At 320° Fahrenheit, which is equal to 160° Celsius, the temperature is precisely double what it is in Celsius.

24.6C is the temperature at which a reading on the Fahrenheit scale corresponds to half of a reading on the Celsius scale.

The unit of temperature on the Celsius scale—one of the two temperature scales used by the International System of Units (SI)—is the degree Celsius. The Kelvin scale is the other temperature scale. The symbol "degree Celsius" (°C) is used to indicate both a specific temperature on the Celsius scale and a measurement of the distance or range between two temperatures. It carries the name of Anders Celsius, a Swedish astronomer who invented a scale for measuring temperature in 1742 and was born in 1701–1744.

Centigrade, which derives from the Latin centum, which means "one hundred," and gradus, which means "steps," was the name of the measurement until 1948, when Anders Celsius was honoured with the new moniker. Most powerful countries utilise this scale.

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The KE of the car is 750v² J.

KE is the kinetic energy of the object which can be defined as the energy possessed by the object when it is in motion.

KE = ΔW

Where,

m = mass of the object

v = speed at which the object is moving

Mass of the car = 1500Kg

Velocity of the car = v m/sec

KE = (1/2)*m*v²

KE = (1/2)*1500*v²

KE = 750v² J

The KE a car with a mass of 1500kg running with a velocity v m/sec 750v² J.

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Poorly Understood

The influence of salinity, temperature and physiological development on habitat choice by juvenile salmon is poorly understood.

Answer:

Below

Explanation:

It is likely that changes in salinity can affect the population of juvenile salmon in a number of ways. For example, if the salinity of the water increases, it can lead to increased stress on the fish and make it more difficult for them to survive.

This can lead to a decrease in the population of juvenile salmon. On the other hand, if the salinity decreases, it can make it easier for the fish to survive and potentially lead to an increase in the population.

It is important to note, however, that the exact response of the population to changes in salinity will depend on a variety of factors, such as the species of salmon, the specific environment in which they are living, and the magnitude of the change in salinity.

The length (a) of the first brilliant zone on either side of the central maxima is 2.62mm.

Diffraction. Waves that emerge from two independent sources and produce distinct wave fronts are said to interfere. On the other hand, diffraction can be thought of as secondary waves that form from the many components of the same wave.

Thomas Young demonstrated how the interaction of two sources of light in the same medium results in an interference pattern. both prospective and retrospective meddling.

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The stars are ten times the mass of our sun will take the shortest time to progress from the earliest protostar stage to the main sequence.

The following are some of the star's characteristics:

The complete question:

"Which of these stars will take the shortest time to go from the earliest    protostar stage to the main sequence?

a. the star which has the same mass as our sun.

b. the star ten times the mass of our sun.

c. the star six times the mass of our sun.

d. none of the above."

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Resolving scaling factor you find the image vertices for dilation with center 0 0

Magnification is defined as a number or conversion factor used to change the size of a shape without changing its shape. Used to increase or decrease the size of an object. If you know the dimensions of the original shape and the dimensions of the enlarged (scaled up or down) shape, you can calculate the scale factor.

For example, a rectangle is 5 units long and 2 units wide. If you scale this rectangle by a factor of two, the sides are 10 and 4 units, respectively. So you can use the scale factor to get the dimensions of the modified figure.

The coordinates of the image vertices can be calculated as follows:

For vertex A (-3, 1) then A' (4 × -3, 4 × 1) = A' (-12, 4)

For vertex B then (4, -3) then B' (4 × 4, 4 × -3) = B' (16, -12)

For vertex C (2, 3), C' ( 4 × 2, 4 × 3) = C' (8, 12)

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Answer:

DeeExplanation:

Small sports car will experience a larger change in kinetic energy during inelastic collision.

In inelastic collision we know that loss of energy is possible. It means law of conservation of energy is not possible. An inelastic collision is an impact where there is a deficiency of motor energy. While force of the framework is moderated in an inelastic collision, motor energy isn't. This is on the grounds that some dynamic energy had been moved to something different. Nuclear power, sound energy, and material distortion are reasonable offenders.

Car has small mass as compared to a massive tractor. Due to its high mass car have greater speed as compared to massive tractor. During inelastic collision when a small mass car is collided with large massive tractor ,it transfers most of its energy to a massive tractor and lost that energy in form of heat.

Hence, a small sports car experience a larger change in kinetic energy.

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A paper clip can certainly float on the water's surface, seemingly defying the rules of physics. The paper clip, which has a significantly higher density, can float on the water due to the strong surface tension.

The forces that hold liquid molecules together create the phenomenon known as surface tension.

A glass of water's surface molecules coheres more strongly with molecules that are directly related to them because they aren't surrounded by water molecules on all sides. It is less likely that a "skin" will develop on the water's surface the higher the cohesion between the water molecules as opposed to the water's attraction.

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Without violating the new speed limit rules, one can go faster than the old limit.

Because c=velocity includes displacement as it is a vector, one may move faster with a velocity meter than the traditional speed restriction. As a result, it will enable the passengers to go in a straight line without veering off the road, and it will assist them get there much quicker than the old approach without breaking the law.

As indicated above, following the displacement rather than the actual distance might let someone arrive at their goal considerably more quickly without violating the new velocity limit.

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The requirement of the charge densities on the surfaces of the plates is that the charge on the plates must be of the same amount but in the opposite direction in order to complete this field. This condition requires that the charge on the plates be of the same amount but in the opposite direction.

What is an electric field?

It is a physical field that a charged particle occupies on another particle in its environment. In order to form this field, the charge on the plates must be the same amount but going in the opposite direction.

The parallel plate capacitor is the term given to the device that holds a charge. The charge concentrations on the plate surfaces will be under the following conditions:

The charges on the plates must be identical in size and directed in the opposite direction.

This enables the addition of fields to the inside of the plates and the removal of fields from the outside.

Therefore, in order to form this field, the charge on the plates must be the same amount but applied in the opposite direction.

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For the photoelectric effect, the expected observations for a particle theory of light are 1,3, and 6 and 2,4,5 for a wave theory of light.

The particle theory of light defines that light consists of minute particles. Light consists streams of small particles known as photons and travels in straight lines at great speeds which is reflected from mirrors in a predictable way. Wave theory of light suggests that light has a wave character and that it travels in a medium called ether as a longitudinal wave and undergoes diffraction and interference. The wave-particle duality theory states that waves can exhibit particle-like properties while particles can exhibit wave-like properties. Hence, based on the basic definition, the statement 1, 3, and 6 respond to particle theory of light and statements 2,4, and 5 respond to wave theory of light.

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(a) The perpendicular component of the block's weight is  86.6 N.

(b) The parallel component of the block's weight is 50 N.

(c) The magnitude and direction of the tension needed to move the block is 103.9 N upwards.

(d) The magnitude and direction of the block's acceleration  is 4.3 m/s² upwards.

The perpendicular and parallel component of the blocks weight is calculated as follows;

The perpendicular component of the block's weight is calculated as follows;

W (n) = W cosθ

where;

W (n) = 100 x cos(30)

W (n) = 86.6 N

The parallel component of the block's weight is calculated as follows;

W (p) = W sinθ

W (p) = 100 x sin (30)

W (p) = 50 N

The magnitude of the tension needed to move the block is calculated as follows;

T = F cosθ

where;

T = 120 x cos(30)

T = 103.9 N upwards

The acceleration of the block is calculated as follows;

T - Ff - W (p) = ma

where;

m = W /g

m = 100 N / 9.8 m/s² = 10.2 kg

T - Ff - W (p) = ma

103.9 - 10 - 50 = 10.2a

43.9 = 10.2a

a = 43.9 / 10.2

a = 4.3 m/s² upwards

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The second child should be at 1.6 m in order to balance the seesaw.

The equation of torque is given as,

τ = r * F sinθ

where, r is the distance from the fulcrum

F is the force

From the above equation, as the seesaw is in equilibrium, this means that left side is equal to right side, we can write

τ₁ = τ₂

r₁ * F₁ = r₂ * F₂

In order to calculate the amount of torque the right side is providing to the system, we need to find out the distance r₂ that the person on the right is sitting with respect to the fulcrum.

300 * 2 = 375 * r₂

r₂ = 600/375 = 1.6 m

Thus, the second child should sit at 1.6 m in order to balance the seesaw.

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The recessional velocity is 9,771,241 m/s.

Step 1: The redshift of a faraway galaxy is determined by measuring the shift of its spectral lines compared to similar lines from nearby galaxies. The redshift is usually expressed as a ratio in terms of how much the wavelength of each line has shifted from its original value.

Step 2: The hydrogen alpha emission line has a known rest wavelength of 6562 angstroms. This means that the observed wavelength of 6782 angstroms is shifted from its rest wavelength by a factor of 1.03.

Step 3: The redshift of a galaxy can be converted into a recessional velocity in km/s by using the Hubble Law, which states that the recessional velocity of a galaxy is proportional to its redshift.

Step 4: To calculate the recessional velocity, the formula V = H0 x z is used, where V is the recessional velocity, H0 is the Hubble Constant, and z is the redshift.

Step 5: The Hubble Constant is currently estimated to be 70 km/s/Mpc, so using the formula, the recessional velocity of the faraway galaxy is 70 km/s/Mpc x 1.03 = 71.1 km/

Recessional velocity is the speed at which an object is moving away from an observer. This is typically measured in kilometers per second and is used to measure the expansion of the universe. It is calculated by measuring the wavelength shift of an object's light, which increases as the object moves away from the observer.

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