What makes up (composition) of beta particle

Answer:

Yes, but only if it's sunny.

Explanation:

As you know, solar panels generate energy through the sun's rays of light (better known as sunlight). Therefore, as long as the sun is shining high in the sky, the car will generate electricity and be able to function. If this vehicle was only powered by solar panels, it would not function during the night, in cloudy areas, and/or in dark places (such as parking garages or home garages).

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Option B: The pressure in the neck is equal to the pressure in the knee because of the equal dynamic pressure according to the continuity equation is the answer.

Assuming that the human circulatory system obeys Bernoulli's principle of hydrodynamics, the most accurate comparison of blood pressure in capillaries in the neck and those of equal cross-sectional area in the right knee yields: The neck pressure equals the knee pressure with the same dynamic pressure according to the continuity equation. The Bernoulli equation describes the flow of an incompressible fluid in a pipe and how that flow is affected by changes in pressure. 

In this case, it can be applied to the flow of blood through capillaries in the neck and right knee. The continuity equation, which states that the volume flow rate of fluid through a tube must remain constant, regardless of changes in the tube's cross-sectional area or shape, can also be applied in this case. Because the two capillaries have the same cross-sectional area, the dynamic pressure in both capillaries must be the same because of the continuity equation. This indicates that the pressure in the neck is equal to the pressure in the knee.

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Answer:

definitley c.

Explanation:

a liquids volume will stay the same unless you take from it

The liquid is the state of matter that has a fixed volume and a changing shape. Hence, option C is correct.

The matter is made up of tiny particles and the particles are so small. The matter has both mass and volume. There are four states of matter. They are solid, liquid, gas, and plasma.

Solids are a state of matter that has a fixed shape and volume. In solids, the particles are compactly arranged and there are no intermolecular spaces between them.

Gas has no fixed volume and shape. It occupies the shape of the container. In gas, the molecules are set to be free and there are no intermolecular forces between them.

Plasma is the fourth state of matter. This state of matter is fully made up of ions. The electrons are said to be free in layers of clouds and in this layer, the ions are with high kinetic energy.

Liquids are the state of matter that has a fixed volume, but changing shape. Liquids do not have a fixed shape, they occupy the shape of the container. The molecules have the weak intermolecular force and they have free space to move.

Hence, the Liquid has a fixed volume and a changing shape. Thus, the correct option is C.

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When a neutral object (such as a lamp) is brought near a charged object (such as a Van de Graaff generator), electrons can be transferred between the two objects. This can result in the neutral object becoming either positively or negatively charged.

In the case where both ends of the lamp are equidistant from the charged Van de Graaff generator, the charges induced in the lamp will be equal and opposite, resulting in a net neutral charge overall. This means that there is no potential difference between the two ends of the lamp, and therefore no current flows through the circuit, and the lamp does not glow.

However, when one end of the lamp is closer to the dome than the other end, the charge induced in the lamp on that end will be greater than on the other end. This creates a potential difference between the two ends of the lamp, and a current can flow through the circuit, causing the lamp to glow.

In summary, the closer proximity of one end of the lamp to the charged Van de Graaff generator creates an imbalance in the induced charges on the lamp, leading to a potential difference and the establishment of a current in the circuit.

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When 20 pillars of the same height are erected along the boundary of a circular stadium and the top of each pillar has been connected by beams with the top of all its non-adjacent pillars, the total number of beams is 190.

There are 20 pillars, and each pillar can be connected to 16 non-adjacent pillars (i.e., every 2nd pillar). Hence, the total number of connections would be 20 × 16 = 320. However, each connection is counted twice since it connects two pillars. Therefore, we need to divide 320 by 2 to obtain the actual number of connections. Therefore, there are 160 beams that connect the top of the pillars.

However, we need to consider the beams that form the boundary of the stadium as well. Since there are 20 pillars, there are 20 beams that connect the adjacent pillars on the boundary. Therefore, the total number of beams would be 160 + 20 = 180. But we still need to consider the beams that connect the pillars at the center of the stadium, which would be the diameter of the circle on which the pillars are erected.

If the radius of the circle is r and the height of the pillars is h, then the length of the diameter would be 2r + h. Since there are 20 pillars, there would be 20 diameters. Hence, the total number of beams that connect the pillars at the center of the stadium would be 20 × (2r + h). Therefore, the total number of beams would be:180 + 20(2r + h)= 180+40r+20h. Thus, the total number of beams is 180 + 40r + 20h.

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Maximum muscle loading at fixed speed with accommodating resistance throughout entire range of motion is characterized by : Isokinetic exercise.

Isokinetic training is a sort of exercise that makes use of a unique machine. There are many levels of resistance produced by the exercise equipment. No matter how much force is used, motions are always made at the same speed. No matter how strong you are, a machine can always exert as much force as you do.

Isokinetic exercise includes cycling on a stationary bike. Your muscles will contract at the same rate across the entire range of motion if you walk at a consistent speed.

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An electric field is defined along the x-axis by the function then if g=1.5m and h=6m, then v(g)-v(h) = 7768.40V.

When charge is present in any form, a point in space has an electric field that is connected to it.

The value of E, often known as the electric field strength, electric field intensity, or just the electric field, expresses the strength and direction of the electric field.

Each location in space where a charge exists in any form can be considered to have an electric field attached to it. The electric force per unit charge is another name for an electric field. The electric field’s equation is given as E = F / Q.

E = + 5 x^4 x^n

Also, E = -x^n r/rx (v)

⇒ 5 x^4 x^n = -x^n r/rx (v)

⇒ v = - ∫ 5 x^4 dx

⇒ v = -5 x^5/5

⇒ v = - x^5 v

So, v(g) - v(h) = - (1.5)^5 + (6)^5

= -7.59375 + 7776

=7768.40 V

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At a temperature of 298 K and a pressure of 101,000 Pa, a volume of 7.94 cubic meters of helium gas corresponds to approximately 817.14 moles of helium atoms. This calculation is based on the application of the ideal gas law equation, which relates pressure, volume, temperature, and the number of moles.

By rearranging the equation and substituting the given values, the number of moles can be determined. This information is valuable for quantifying the number of helium atoms present in a given volume of gas and understanding the behavior of gases. The ideal gas law provides a fundamental framework for analyzing gas properties and enables the calculation of various gas-related parameters.

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Answer:

a = 6.27 m/s² - acceleration

Explanation:

Given:

F = 9 079 N

m = 1 447 kg

_________

a - ?

Acceleration:

a = F / m

a = 9 079 / 1 447 ≈ 6.27 m/s²

Final velocity of the electron, v = 5.4 × 10⁶ m/s.

Potential difference, ΔV = 2500 V;

Charge on an electron, q = 1.6 × 10⁻¹⁹ C;

Mass of an electron, m = 9.1 × 10⁻³¹ kg

the final velocity of an electron using the formula, v = √((2qΔV) / m)Where, v = final velocity of an electron after traveling over a potential difference ΔVq = charge on the electron , m = mass of the electron.

Substituting the given values in the above equation,

we getv = √((2 × 1.6 × 10⁻¹⁹ C × 2500 V) / 9.1 × 10⁻³¹ kg)

Therefore, the final velocity of the electron is 5.4 × 10⁶ m/s.

An electron of mass 9.1 × 10⁻³¹ kg is released from rest and travels over a potential difference of 2500 V.

We can calculate the final velocity using the formula for kinetic energy, K = (1/2) mv²

Where, K = Kinetic energy of the electron , m = mass of the electron , v = final velocity of the electron.

The initial kinetic energy of the electron is zero, as it is released from rest.

Hence, the total energy gained by the electron is equal to its final kinetic energy.

The potential difference ΔV between the two points is given as 2500 V.

Hence, the work done by the electric field in moving an electron of charge q from one point to another with a potential difference ΔV is given by W = qΔV

We know that the work done is equal to the change in kinetic energy, as per the work-energy theorem.

So, the work done by the electric field in accelerating an electron is given byqΔV = (1/2) mv²Solving for v,v = √((2qΔV) / m)

On substituting the values given in the question,

we get v = √((2 × 1.6 × 10⁻¹⁹ C × 2500 V) / 9.1 × 10⁻³¹ kg)

Final velocity of the electron, v = 5.4 × 10⁶ m/s.

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A resting electron is liberated, and it moves over a 2500 volt potential difference. Therefore, the final velocity of the electron after traveling over a potential difference of 2500 V is approximately 5.93 x 10⁶ m/s.

The idea of energy conservation can be used to determine an electron's final velocity after it crosses a 2500 V potential difference. The change in the electron's potential energy caused by the electric potential difference can be transformed into kinetic energy.

The potential energy (PE) gained by the electron is given by:

PE = q × V

Where:

q is the charge of the electron (1.6 x 10⁻¹⁹ C),

V is the potential difference (2500 V).

The change in potential energy is equal to the change in kinetic energy:

ΔPE = ΔKE

Therefore, we have:

q × V = (1/2) × m × v²

Where:

m is the mass of the electron (9.1 x 10⁻³¹ kg),

v is the final velocity of the electron.

Rearranging the equation, we can solve for v:

v² = (2 × q × V) / m

v = √((2 × q × V) / m)

Plugging in the values, we have:

v = √((2 × (1.6 x 10⁻¹⁹ C) × (2500 V)) / (9.1 x 10⁻³¹ kg))

v = 5.93 x 10⁶ m/s

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(b) 0.10 m.The smallest amplitude occurs when there is destructive interference, which happens when two waves meet in anti-phase with each other.(a) 0.50 m.

The wave's highest displacement is its amplitude.Two waves that interfere with one another have a resultant amplitude that is equal to the sum of their respective displacements at the same point also as resultant wave's amplitude.

When two waves collide while moving across the same medium, wavelet is the result.The medium assumes a shape as a result of the net impact of the two distinct waves on the medium's particles due to wave interference.

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Answer:

a) The initial momentum of the ball is 22.5 kg·m/s

b) The magnitude of the momentum imparted by the ball is 30 kg·m/s

Explanation:

The question is based on change in momentum

The mass of the ball, m = 0.75 kg

The velocity with which the ball is thrown against the wall, u = 30 m/s

The time duration it takes while the ball is in contact with the wall, Δt = 0.05 sec

The velocity of the ball as it bounce back, v = -10 m/s (The ball moves in the opposite direction)

a) The initial momentum of the ball, \(P_{Initial}\) = m × u = 0.75 kg × 30 m/s = 22.5 kg·m/s

b) The final momentum of the ball, \(P_{Final}\) = m × v = 0.75 kg × (-10 m/s) = -7.5 kg·m/s

The momentum imparted by the ball, ΔP = The final momentum - The initial momentum

∴ ΔP = \(P_{Final}\) - \(P_{Initial}\)  =  -7.5 kg·m/s - 22.5 kg·m/s = -30 kg·m/s

The magnitude of the momentum imparted by the ball, \(\left | \Delta P \right |\) = 30 kg·m/s

The illuminance at screen B is one-fourth (25%) of the illuminance at screen A.

The illuminance at a screen is directly proportional to the inverse square of the distance from a point source of light. In this scenario, the distance between the point source and screen A is half that of the distance between the point source and screen B.

According to the inverse square law, the illuminance at screen A will be four times greater than the illuminance at screen B. This is because when the distance is halved, the illuminance increases by a factor of four (2^2).

To explain further, if we assume the illuminance at screen A is X, then the illuminance at screen B would be X/4. The factor of 1/4 arises from the inverse square relationship between distance and illuminance.

Therefore, the illuminance at screen B is one-fourth (25%) of the illuminance at screen A. In other words, screen B receives only 25% of the light intensity compared to screen A.

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Answer:

the the right because opposites attract to each other

Answer:

Stars that are more than 40 times more massive than our Sun, cannot expand into a red supergiant. This is because they burn too quickly and lose their outer layers fast. They will reach the blue supergiant stage, or perhaps yellow hypergiant, before returning to become hotter stars.

Explanation:

Answer:

Cause there bigger so they have a more hotter surface.

The work function for barium is 2.48eV. If light of 400nm is shined on the barium cathode, the maximum velocity of the ejected electron is 4.54 × 105 m/s.

Energy can be transferred from electromagnetic radiation to matter in the form of photons. The energy of each photon is equal to the product of Planck's constant (h) and the frequency of radiation (ν), which is related to the wavelength (λ) by the equation c = νλ, where c is the speed of light in vacuum. Because of the photoelectric effect, which is a quantum effect in which electrons are ejected from matter when exposed to radiation with sufficiently high frequency, this energy can ionize atoms or eject electrons from metal surfaces.

The maximum kinetic energy that an electron can acquire in the photoelectric effect is equal to the energy of the incident photon minus the work function of the metal. If the metal is irradiated with monochromatic radiation, the maximum kinetic energy of the photoelectron can be calculated using the equation KEmax = hν – φ, where KEmax is the maximum kinetic energy of the ejected electron, h is Planck's constant, and φ is the work function of the metal.Barium has a work function of 2.48 eV, and radiation with a wavelength of 400 nm has a photon energy of 3.1 eV. If the photon is absorbed by a barium atom, the maximum kinetic energy of the ejected electron is:KEmax = hν – φ = hc/λ – φ = 3.1 eV – 2.48 eV = 0.62 eV.To convert this to velocity, the kinetic energy must first be converted to joules, and then to velocity using the following equation:KE = ½ mv2 ⇒ v = √(2KE/m),where m is the mass of the electron, which is 9.11 × 10–31 kg.Therefore,v = √[2(0.62 × 1.6 × 10–19)/9.11 × 10–31] = 4.54 × 105 m/s.So, the maximum velocity of the ejected electron is 4.54 × 105 m/s.

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SOLUTION :-

Time for 30oscillations=51s

Time period for 1oscillation

\(\\ \sf\longmapsto 51/30\)

\(\\ \sf\longmapsto 1.7s\)

Answer:

Magnitude

Explanation:

Each value in nature has a number part, called its magnitude and a dimension called its unit.

For example,

The length of an object is 10 cm. It means that 10 shows the magnitude of length and cm shows its unit.

The spacetime Using Lorentz transformation equation coordinates in the moving frame are (1303.93 m, 3.01 s).

Given information:

An event has spacetime coordinates (x,t)=1,300 m,3.0 s in reference frame S.What are the spacetime that moves in the negative x - direction at 0.03c?We know that the coordinates of the same event as observed from two different inertial frames are related by the Lorentz transformation equations.

Using Lorentz transformation equation:(x', t') = (γ(x − vt), γ(t − vx/c²))where γ = 1/√(1−v²/c²) represents the Lorentz factor, x is the position in the stationary frame, t is time in the stationary frame, x' is the position in the moving frame, t' is time in the moving frame, v is the relative velocity between the two frames and c is the speed of light in vacuum.We are given,x = 1,300 mt = 3.0 s, v = −0.03c (since the motion is in the negative x direction)∴ γ = 1/√(1−v²/c²) = 1/√(1−0.03²) = 1/0.997

The spacetime coordinates in the moving frame, (x', t') = (γ(x − vt), γ(t − vx/c²))= [1/0.997 (1300 - (-0.03c)(3.0))] m, [1/0.997 (3.0 - (-0.03c)(1300)/c²)] s= (1303.93 m, 3.01 s) [correct to 2 decimal places]

Therefore, the spacetime coordinates in the moving frame are (1303.93 m, 3.01 s).

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Answer: The answer is C. Find the slope of the tangent at any point.

Answer:

1.67s

Explanation:

Given parameters:

Initial velocity  =  20m/s

Acceleration  = 6m/s²

Final velocity  = 30m/s

Unknown:

Time taken  = ?

Solution:

Acceleration is the rate of change of velocity with time. It is mathematically expressed as;

 Acceleration = \(\frac{v - u }{t}\)  

v is the final velocity

u is the initial velocity

 t is the time taken

            6  =\(\frac{30 - 20}{t}\)  

            6  = \(\frac{10}{t}\)  

              10  = 6t

              t  = 1.67s

Answer:

The correct answer is option D.

Explanation:

With an increase in temperature, the particles increase kinetic energy and move quicker. The normal speed of the particles relies upon their mass just as the temperature – heavier particles move more gradually than lighter ones at a similar temperature.

The temperature increase in this system since the average kinetic energy of the particles increases and particles move quickly. And after some time the temperature of the system is lower now than it was initially.

Thus, the correct answer is option D.

The impact of the change in motion should be option D.

In the case when there is an increase in temperature, the particles should increase kinetic energy and move faster. The normal speed of the particles believes their mass is like the temperature. The temperature rises in this system because the average kinetic energy of the particles should rised and particles move faster.

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Answer:

It is a fundamental theory in physics that provides a description of the physical properties of nature at the scale of atoms and subatomic particles.

Answer:

The ability of a substance to dissolve into another, called the solvent.

Explanation:

That is why water is called "the universal solvent."

Because it can dissolve almost anything.

The speed and temperature have nothing to do with solubility.

Answer:

the ability of one substance to dissolve in another

Explanation:

Answer:

 θ = 64.5º

Explanation:

To find the angles of a vector with respect to some axis of a coordinate system, the tangent function is used.

           tan θ = \(\frac{y}{x}\)

where y is the opposite leg and x is the adjacent leg

in this case the angle is

        θ = tan⁻¹   \(\frac{A_y}{A_x}\)

let's calculate

        θ = tan⁻¹ \(\frac{15.9}{ 7.6}\)

        θ = tan⁻¹ 2.09

        θ = 64.5º

this angle is with respect to the positive pâté of the x axis

Answer: electrostatic force

Explanation:

electrostatic forces pull or push on objects without touching them, which is how when you rub some materials together they can result in something called a 'charge', being moved from point A to point B.

Answer:

Umm well a person can not hear when a  it snows or maybe like a snow storm

Explanation: snow is so light you dont hear it land but you can see it

Answer: the answer is, A sound wave reaches the ear, and the reflected wave reaches the ear less than 0.1 seconds later

Explanation: PENN

the meter stick so that it is in balance is 56 cm

Taking the equilibrium of Torque about C

200g (40 + x) + 100g x = 400g (30 - x)

200 (40 + x) + (100) x = (400) (30 - x)

x = 5.71

so location = 50 + 5.71 = 55.71 cm = 56 cm

chemical equilibrium is the state during a reversible chemical process where there is no net change in the amounts of reactants and products. When a chemical reaction is reversible, the products react with the original reactants as soon as they are created. There is no net change in the quantity of the constituent substances when the two opposing processes are in equilibrium because they are occurring at identical rates or velocities. The reaction may now be regarded as being finished, meaning that the maximal amount of reactants to products has been converted under the given reaction conditions.

It is possible to quantify the equilibrium-related conditions. For instance, in the reversible reaction A B + C,

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