scientific findings that prove the strong nuclear force exsist

Answer:

I think its B

Explanation:

Answer:

Hunter is a electrician

Answer: He's an Electrician !

Explanation:

Possible beat frequencies with tuning forks of frequencies 255, 258, and 260 Hz are 2, 3 and 5 Hz respectively.

The beat frequency refers to the rate at which the volume is heard to be oscillating from high to low volume. For example, if two complete cycles of high and low volumes are heard every second, the beat frequency is 2 Hz. The beat frequency is always equal to the difference in frequency of the two notes that interfere to produce the beats. So if two sound waves with frequencies of 256 Hz and 254 Hz are played simultaneously, a beat frequency of 2 Hz will be detected. A common physics demonstration involves producing beats using two tuning forks with very similar frequencies. If a tine on one of two identical tuning forks is wrapped with a rubber band, then that tuning forks frequency will be lowered. If both tuning forks are vibrated together, then they produce sounds with slightly different frequencies. These sounds will interfere to produce detectable beats. The human ear is capable of detecting beats with frequencies of 7 Hz and below.

A piano tuner frequently utilizes the phenomenon of beats to tune a piano string. She will pluck the string and tap a tuning fork at the same time. If the two sound sources - the piano string and the tuning fork - produce detectable beats then their frequencies are not identical. She will then adjust the tension of the piano string and repeat the process until the beats can no longer be heard. As the piano string becomes more in tune with the tuning fork, the beat frequency will be reduced and approach 0 Hz. When beats are no longer heard, the piano string is tuned to the tuning fork; that is, they play the same frequency. The process allows a piano tuner to match the strings' frequency to the frequency of a standardized set of tuning forks.

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Option 2: the bottom wave has the most energy because it has the larger amplitude.

The greater the amplitude, the more energy the wave has. In general, amplitude is directly proportional to the energy of a wave. This means that as the amplitude of a wave increases, so does its energy.

The amplitude of a wave refers to the maximum displacement of the medium from its rest position as the wave passes through it. The more energy a wave has, the greater its amplitude will be, which means that it will cause larger fluctuations in the medium through which it is traveling.

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The best answer ""The planets and sun all formed from a cloud of gas and dust that contracted as it cooled. As the cloud contracted, its spin increased and it flattened. By the time the planets formed, the cloud was a flat spinning disk.""

This explanation is based on the widely accepted theory of solar system formation called the nebular hypothesis. According to this hypothesis, the solar system formed from a rotating cloud of gas and dust known as the solar nebula. As the nebula contracted due to its own gravity, it began to spin faster and flatten into a spinning disk.

Because the initial cloud had a particular rotation and flattened shape, the resulting planetary system inherited these characteristics. The conservation of angular momentum caused the protoplanetary disk to form a nearly flat plane, and the counterclockwise direction of rotation was also preserved. This is why the planets have orbits in the same plane and in the same counterclockwise direction when viewed from above the Earth's North Pole.

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Answer:

B. Gravity and air resistance

Explanation:

Experimentation has proven that :

When the parachute opens, air resistance becomes much greater than gravity. The forces are no longer balanced and this changes the

speed

Answer:

\(\large \boxed{\mathrm{B. \ Gravity \ and \ air \ resistance}}\)

Explanation:

Gravity and air resistance are the forces that get balanced out during a free fall. This is also known as terminal velocity, when gravity = air resistance.

When a rope of length L and mass m is suspended from the ceiling, the tension in the rope at position y can be found using the following expression:

T(y) = mg + λy where g is the acceleration due to gravity, λ is the linear mass density of the rope, and y is the distance measured upward from the free end of the rope.

Here's how to derive the expression: Let's consider an element of length dy of the rope at a distance y from the free end of the rope. The weight of the element is dm = λdy and acts downward. The tension in the rope on the element can be resolved into two components - one acting downward and another acting upward. Let T be the tension in the rope at point y and T + dT be the tension in the rope at point (y + dy).The upward component of tension on the element is given by Tsinθ, where θ is the angle between the element and the vertical. As the rope is assumed to be in equilibrium, the horizontal components of tension balance each other and the net vertical force on the element is zero. Therefore, we have,

Tsinθ - dm g = 0 ⇒ Tsinθ = dm g ⇒ Tsinθ = λdyg

The angle θ can be found using the equation tanθ = dy/dx ≈ dy/dy = 1. Therefore, sinθ = dy/√(dy²+dx²) ≈ dy and we have,T dy = λdyg ⇒ T = λgThis expression gives the tension in the rope at the free end of the rope. The tension in the rope at position y, measured upward from the free end of the rope is given by,T(y) = mg + λy

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The average speed of the helicopter blade tip in the helicopter's frame of reference is 37.08 m/s. The average velocity over one revolution is zero. the number of revolutions per second it makes about the nucleus is 7.44×10¹⁵ rev/s. The average velocity over five complete revolutions ≈ 1.32×10⁻⁵ m/s

a) To calculate the average speed of the helicopter blade tip in the helicopter's frame of reference, we need to convert the given angular velocity from revolutions per minute to radians per second. We know that 1 revolution is equal to 2π radians.

The conversion factor is as follows:

160 revolutions/minute * (2π radians/1 revolution) * (1 minute/60 seconds) = (160 * 2π) / 60 radians/second

Now, we can calculate the average speed using the formula:

Average Speed = (Angular Velocity) * (Radius)

Average Speed = [(160 * 2π) / 60] radians/second * 7 m

= 37.08 m/s

Therefore, the average speed of the helicopter blade tip in the helicopter's frame of reference is 37.08 m/s.

b) The average velocity over one revolution is zero because the blade returns to its starting position after completing one full revolution. The displacement is zero, so the average velocity is also zero. For the second part of your question regarding the planetary model of the atom, let's move on to that:

a) The number of revolutions per second can be calculated by dividing the average speed of the electron (2.44×10⁶ m/s) by the circumference of the circular orbit. The circumference can be calculated using the formula for the circumference of a circle: 2π * radius.

Number of revolutions per second = Average speed / Circumference

= 2.44×10⁶ m/s / (2π * 1.04×10⁻¹⁰ m)

Calculating this, we find:

Number of revolutions per second ≈ 7.44×10¹⁵ rev/s

b) The electron's average velocity over five complete revolutions can be calculated by multiplying the number of revolutions by the circumference and dividing it by the time taken for five revolutions.

Average velocity over five complete revolutions = (Number of revolutions * Circumference) / (Time taken for five revolutions)

Since we know the circumference is 2π * radius, we can substitute the values into the formula:

Average velocity over five complete revolutions = (5 * 2π * 1.04×10⁻¹⁰ m) / (Time taken for five revolutions)

The time taken for five revolutions is the reciprocal of the frequency, which is the number of revolutions per second. So, we have:

Average velocity over five complete revolutions ≈ (5 * 2π * 1.04×10⁻¹⁰ m) / (7.44×10¹⁵ rev/s)

Calculating this, we find the average velocity over five complete revolutions ≈ 1.32×10⁻⁵ m/s

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Answer:

I know for sure that it's either A or B have a great day sorry I don't know which one completely

The height from which the ball was released if it strikes the ground after 6.9 seconds is 233.29 m

v = u + at

v = Final velocity

u = Initial velocity

a = Acceleration

t = Time

u = 0

t = 6.9 s

a = 9.8 m / s²

v = 0 + ( 9.8 * 6.9 )

v = 67.62 m / s

v² = u² + 2 a s

s = Displacement

67.62² = 0 + ( 2 * 9.8 * s )

s = 4572.46 / 19.6

s = 233.29 m

Therefore, the height from which the ball was released is 233.29 m

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9514 1404 393

Answer:

  12.  x = 11; sides are 29

  13.  x = 5; sides are 25

Explanation:

12. The marked sides are equal length, so ...

  3x -4 = 2x +7

  x = 11 . . . . . . . . add 4-2x

  2x+7 = 2(11)+7 = 29 . . . side lengths

__

13. The marked sides are equal length, so ...

  6x -5 = 5x

  x = 5 . . . . . . . add 5-5x

  5x = 5(5) = 25 . . . side lengths

Part A:

Radius of flywheel = 0.600 m

Angular acceleration of flywheel (αₐ) = 0.200 rad/s²

The tangential acceleration of a point at the start (αₓ) =

= αₓ = αₐ × r

= αₓ = 0.200 × 0.600

= αₓ = 0.12 m/s²

Part B:

Radius of flywheel = 0.600 m

Angular acceleration of flywheel (αₐ) = 0.200 rad/s²

Angular speed = ω = 0 m/s²

Magnitude of radial acceleration of a point on rim at the start (αₙ)=

= (angular speed)² × r

= 0 × 0.600

= 0 m/s²

Part C:

Radius of flywheel = 0.600 m

Angular acceleration of flywheel (αₐ) = 0.200 rad/s²

Resultant acceleration of a point on the rim at the start =

= α =√(αₙ² + αₓ²)

= α = √ (0² + 0.12²)

= α = 0.12 m/s²

Part D:

Radius of flywheel = 0.600 m

Angular acceleration of flywheel (αₐ) = 0.200 rad/s²

Angular speed = ω = 0 m/s²

The tangential acceleration of a point after 60° turn (αₓ₁) = The tangential acceleration of a point at the start (αₓ)

= αₓ₁ = αₐ × r

= αₓ₁ = 0.200 × 0.600

= αₓ₁ =  0.12 m/s²

Part E:

Radius of flywheel = 0.600 m

Angular acceleration of flywheel (αₐ) = 0.200 rad/s²

Angular speed = ω = 0 m/s²

Angular speed after 60° turn = ω₁ = √(ω² + (2×α×θ))

To find θ,

= θ = 60Π / 180

= θ = Π/30

= θ = 1.04 rad

Thus, ω₁ = √(0 + 2 × 1.04 × 0.2)

= ω₁ = 0.644 rad/s

The radial acceleration of a point after 60° turn (αₓ₂) =

= αₓ₂ = r × ω₁²

= αₓ₂ = 0.600 × 0.644²

= αₓ₂ = 0.248 m/s²

Part F:

Radius of flywheel = 0.600 m

The tangential acceleration of a point after 60° turn (αₓ₁) = 0.12 m/s²

The radial acceleration of a point after 60° turn (αₓ₂) = 0.248 m/s²

The magnitude of resultant acceleration of a point on the rim after 60° turn (α₃) =

= α₃ = √ (αₓ₂² + αₓ₁²)

= α₃ = √ (0.12² + 0.248²)

= α₃ = 0.275 m/s²

Part G:

Radius of flywheel = 0.600 m

Angular acceleration of flywheel (αₐ) = 0.200 rad/s²

Angular speed = ω = 0 m/s²

The tangential acceleration of a point after 120° turn (αₓ₁) = The tangential acceleration of a point at the start (αₓ)

= αₓ₁ = αₐ × r

= αₓ₁ = 0.200 × 0.600

= αₓ₁ =  0.12 m/s²

Part H:

Radius of flywheel = 0.600 m

Angular acceleration of flywheel (αₐ) = 0.200 rad/s²

Angular speed = ω = 0 m/s²

Angular speed after 120° turn = ω₁ = √(ω² + (2×α×θ))

To find θ,

= θ = 120Π / 180

= θ = 2Π/3

= θ = 2.09 rad

Thus, ω₁ = √(0 + 2 × 2.09 × 0.2)

= ω₁ = 0.836 rad/s

The radial acceleration of a point after 120° turn (αₓ₂) =

= αₓ₂ = r × ω₁²

= αₓ₂ = 0.600 × 0.836²

= αₓ₂ = 0.502 m/s²

Part I:

Radius of flywheel = 0.600 m

The tangential acceleration of a point after 120° turn (αₓ₁) = 0.12 m/s²

The radial acceleration of a point after 120° turn (αₓ₂) = 0.502 m/s²

The magnitude of resultant acceleration of a point on the rim after 120° turn (α₃) =

= α₃ = √ (αₓ₂² + αₓ₁²)

= α₃ = √ (0.12² + 0.502²)

= α₃ = 0.515 m/s²

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Answer:

12 m

Explanation:

From the question given above, the following data were obtained:

Mass (m) of bag = 25 kg

Potential energy (PE) = 2940 J

Height (h) =?

Objects carried to a particular height will always experience an acceleration due to gravity of 9.8 m/s².

With the above in mind, we can obtain the height to which the load is lifted to as shown below:

Mass (m) of bag = 25 kg

Potential energy (PE) = 2940 J

Acceleration due to gravity (g) = 9.8 m/s².

Height (h) =?

PE = mgh

2940 = 25 × 9.8 × h

2940 = 245 × h

Divide both side by 245

h = 2940 / 245

h = 12 m

Therefore, the worker lifts the load to a height of 12 m.

Answer:

9.78 m/s^2

Explanation:

Acceleration due to gravity at equator is 9.78m/s^2

Pyrite Stone:

Pyrite, also known as fool's gold, is a mineral composed of iron and sulfur. It has a metallic luster and a brassy yellow color. Found in sedimentary rocks and hydrothermal veins, pyrite has a hardness of 6 to 6.5 on the Mohs scale. It has industrial uses in sulfuric acid production, fertilizers, and batteries. Pyrite can oxidize and cause environmental concerns. It is also used in jewelry and decorative items.

Cement Bricks:

Cement bricks, made from a mixture of cement, sand, and water, are widely used in construction for their strength, durability, and weather resistance. They offer advantages over traditional clay bricks and come in various sizes, shapes, and colors. Cement bricks are cost-effective, provide thermal insulation, and require proper construction practices for quality and longevity. Efforts have been made to develop sustainable alternatives to reduce energy consumption and carbon emissions.

Pyrite Stone:

Cement Bricks:

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Among the given options, cultural differences are most likely to be the centrifugal force within the EU in the future. The EU is a political and economic union of 27 member states, and cultural differences among its member states have always been present.

With the increasing number of immigrants from different parts of the world, the cultural differences among EU member states are becoming more prominent. Each member state has its unique language, history, customs, and traditions, which can create misunderstandings and conflicts among the member states.
The EU aims to promote unity and solidarity among its member states, but cultural differences can lead to a lack of understanding and trust between them. The EU's diverse cultural heritage is both a strength and a challenge for the union. The EU needs to find a way to respect the cultural diversity of its member states while maintaining its unity.
However, the cultural differences among the member states can still cause tensions and conflicts in the future. Therefore, it is crucial for the EU to continue to foster cultural awareness and understanding among its member states to maintain the union's cohesion and stability.

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complete question:

Which of these is most likely to be a centrifugal force within the EU in the future?

a. trade barriers

b. closed borders

c. pollution problems

d. cultural differences

Inhibitory signals hyperpolarize, reducing the likelihood of an action potential.

Inhibitory signals have the effect of hyperpolarizing the membrane potential of a neuron. Hyperpolarization refers to an increase in the negativity of the neuron's resting potential, making it more difficult to reach the threshold for an action potential. When inhibitory signals are received by a neuron, they cause an influx of negatively charged ions or an efflux of positively charged ions, which drives the membrane potential away from the threshold. This inhibitory influence decreases the likelihood of an action potential being generated and transmitted along the neuron. In essence, inhibitory signals work to counteract or dampen excitatory inputs, maintaining a balance and regulating the overall activity and firing patterns of neural circuits.

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The heliocentric model of the Universe was developed by Nicolaus Copernicus.

He proposed this model in the 16th century, suggesting that the Sun is at the center of the solar system, with the planets, including Earth, revolving around it. This was a significant departure from the prevailing geocentric model, which placed Earth at the center of the Universe. Johannes Kepler, an astronomer who came after Copernicus, made significant contributions to the understanding of planetary motion by formulating his three laws of planetary motion. Ptolemy and Aristotle were ancient Greek philosophers and astronomers, but they advocated for the geocentric model, which was eventually challenged and replaced by Copernicus' heliocentric model.

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The force required to lift the whale shark is given as 25000 N, and its acceleration is 1.25 m/s^2. We can use Newton's second law of motion, which states that the force (F) applied on an object is equal to the product of its mass (m) and acceleration (a), i.e. F = ma.

Rearranging the equation to solve for the mass, we get:

m = F/a

Substituting the given values, we get:

m = 25000 N / 1.25 m/s^2

m = 20000 kg

Therefore, the mass of the whale shark is approximately 20,000 kg.

Answer:

Fracturing can emit seismic waves through the ground.

Explanation:

I believe the answer is seismic, I've studied this before.

Answer:

Correct choice: C. 147 N

Explanation:

Weight

Weight is the force exerted on a body by gravity. It's often expressed with the formula:

W = mg

Where

W = weight

m = mass of the object

g  = gravitational acceleration.

The mass of the box is m=15 Kg and the acceleration of gravity is \(g=9.8\ m/s^2\), thus:

W = 15*9.8 = 147 N

W = 147 N

Correct choice: C. 147 N

Answer:

Its Moving at a constant Speed of 90km/hr

You can convert this speed to Meters/Second or Change it to Km/Second(Because we need our distance in Km)

So 90km/hr x 1/60 x1/60

=90km/3600sec

v=0.025km/sec

When an Object Moves at Constant Speed... Its displacement(distance) is given by

d=vt

given v=0.025km/sec

t=1sec

d=0.025km/sec x 1sec

d=0.025km.

Answer:

0.025

Explanation:

speed= 90km/hr

speed in m/s= 18/5*90

                       = 25m/s

25 m= 25/1000km=0.025

Answer:

So, the power done is 196 watts.

Explanation:

Answer: Convection can occur in both fluids (liquids and gases) and, to a lesser extent, in solids.

Explanation:

Convection is a mode of heat transfer that involves the movement of fluid (liquids or gases) due to temperature differences within the fluid. It occurs as a result of the fluid's natural tendency to move from areas of higher temperature to areas of lower temperature.

Convection in Fluids (Liquids and Gases):

In fluids, convection can occur due to the different densities resulting from temperature variations. When a fluid is heated, it becomes less dense, causing it to rise. Conversely, when a fluid is cooled, it becomes more dense, causing it to sink. This creates a cyclical movement within the fluid known as a convection current.

In liquids, examples of convection can be observed in everyday scenarios such as boiling water. As heat is applied to the bottom of a pot, the heated water near the bottom becomes less dense and rises to the top. This movement creates a circulation pattern, transferring heat from the bottom of the pot to the rest of the liquid.

In gases, convection is responsible for various atmospheric phenomena. For instance, during the daytime, the land heats up faster than the adjacent air. The heated air expands, becomes less dense, and rises, creating an upward convection current. This process contributes to the formation of wind and the circulation of heat throughout the atmosphere.

Convection in Solids:

While convection primarily occurs in fluids, it can also manifest to a lesser extent in solids. In solids, heat is mainly transferred through conduction, where energy is passed from one particle to another. However, in some cases, convection-like movements can be observed in solids with free-flowing particles or when there are temperature gradients. An example of this is the convection-like movements observed in the Earth's mantle, where heated material rises and cooler material sinks, contributing to plate tectonics.

To summarize, convection primarily occurs in fluids (liquids and gases) due to the density changes caused by temperature variations. However, in solids with certain conditions, convection-like movements may also be observed.

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Answer:

Convection can occur in fluids, such as liquids and gases.

Explanation:

Convection is a type of heat transfer that happens in fluids such as liquids and gases.

Convection is the process through which heat is transferred by the movement of a fluid. It is based on the idea that as a fluid is heated, it loses density and rises, while a colder fluid descends to take its place. Convection currents are a type of circulatory pattern caused by fluid movement.

Convection may be seen in liquids, for example, while heating a pot of water on a stove. The water in contact with the heat source grows hotter and less dense as heat is supplied to the bottom of the pot. This heated water rises to the surface, while the colder and denser water sinks. Water sinks to the bottom, causing a convection stream to form. This process is repeated, resulting in the diffusion of heat throughout the liquid.

Convection may also occur in gases. For example, as air is heated, it loses density and rises, whereas colder air descends. This phenomena may be seen when heated air rises from a heater or hot air balloons are inflated. Convection currents are formed when air moves due to temperature differences, allowing heat to be transferred.

In summary, convection may occur in both liquids and gases, and it includes the transmission of heat via fluid movement caused by temperature and density variations.

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The equivalent resistance between points A and B in the diagram is 22 Ω

We shall begin by obtaining the equivalent resistance in parallel (i,e the three 6 Ω resistor). Details below:

1/Rₜ = 1/R₁ + 1/R₂ + 1/R₃

1/Rₜ = 1/6 + 1/6 + 1/6

1/Rₜ = 3/6

1/Rₜ = 1/2

Rₜ = 2 Ω

Finally, we shall determine the equivalent resistance between A and B (i.e series arrangement). Details below:

R = R₁ + R₂ + R₃ + R₄ + R₅ + R₆ + R₇ + R₈ + R₉ + R₁₀ + R₁₁

R = 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2

R = 22Ω

Thus, we can conclude that the equivalent resistance is 22 Ω

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Answer:

velocity

Explanation:

Unbalanced forces on an object cause it to accelerate.  Acceleration is a change in velocity over time.

Answer:

a

Explanation:

none

S-waves, also known as shear waves, flow through liquids but not solids, which is correct information regarding seismic waves travelling through the earth.

Seismic waves are created when materials unexpectedly move inside the Earth, such as when they slide down a fault when in an earthquake.. Seismic waves can also be produced by volcanic eruptions, explosions, landslide, avalanches, or even swiftly flowing rivers. An acoustic wave that passes through the Planet or the other planetary body is called a seismic wave. Large landslides, volcanic eruptions, magma movement, earthquakes, and man-made explosions that release a lot of low-frequency acoustic energy can all cause it.

Sudden movement along Earth's fault lines causes earthquakes. The motion releases "elastic strain" energy that has been accumulated inside the form of seismic waves, that travel through the Earth & cause the earth to tremble. Seismic wave research is crucial for understanding and forecasting earthquakes and tsunamis, but it also provides details on the structure and properties of the Earth, much like it did for the discovery the Mohorovicic's discontinuity.

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Answer:

d

Explanation:

radiation

Answer:

I would say option D is the answer

The probability of waiting in a queue decreases by 0.0001638 when a 5th toll booth is opened.

ρ = λ/(c*μ)

ρ = (600 veh/h) / (4 * (1/12) veh/s) = 1

\(P_w = (1 - p) / (1 - p^(c+1))\)

Plugging in the values, we get:

\(P_w = (1 - 1) / (1 - 1^5) = 0\)

let's consider the toll road with 5 toll booths. The traffic intensity is:

ρ = (600 veh/h) / (5 * (1/12) veh/s) = 0.8

The probability of waiting in a queue is:

\(P_w = (1 - p) / (1 - p^(c+1))\) = \((1 - 0.8) / (1 - 0.8^6) = 0.0001638\)

Therefore, the positive difference between the two probabilities is:

0.0001638 - 0 = 0.0001638

The study of random occurrences or phenomena falls under the category of probability, which is a branch of mathematics.  It is concerned with the likelihood or chance of a specific outcome occurring in a given situation. Probability is measured on a scale from 0 to 1, with 0 indicating that an event is impossible, and 1 indicating that an event is certain.

In probability theory, an event is a set of possible outcomes, and a probability measure assigns a numerical value to each event that reflects the likelihood of its occurrence. Probability is used in a variety of fields, including science, engineering, finance, and statistics, to make predictions and make informed decisions based on uncertain information.

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