A dog can run a distance of 20m in 10s.

DeBroglie’s model, also known as the wave model, differs from Bohr’s model in several ways.

Firstly, DeBroglie’s model views electrons as waves, whereas Bohr’s model views electrons as particles. This means that DeBroglie’s model can account for the wave-like properties of electrons, such as diffraction and interference, which Bohr’s model cannot. Secondly, DeBroglie’s model does not have fixed energy levels for electrons like Bohr’s model. Instead, it proposes that electrons exist in standing wave patterns around the nucleus, known as orbitals. These orbitals can have different shapes and sizes, which determine the electron’s energy. This means that DeBroglie’s model can explain why certain atoms have unique electron configurations.

Finally, DeBroglie’s model is more complex than Bohr’s model. It involves mathematical equations, such as Schrödinger’s equation, to describe the behavior of electrons. These equations take into account the probability of finding an electron in a certain location and are used to calculate the electron density in an atom.
Overall, DeBroglie’s model provides a more accurate and comprehensive view of the behavior of electrons in atoms. It takes into account both the wave-like and particle-like properties of electrons, and provides a more detailed explanation of the electron configurations of atoms.

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Answer:

Well there is gravitational force acting on the bucket ,gravitational force is a downward force so it will be acting on the bucket making it harder to lift it

Answer:

Hope this will help you.

From the given situation we conclude that the plant with the smooth seeds is homozygous for the dominant trait.

There is no possibility of having children with wrinkly seeds. Only when the parent plant with smooth seeds is homozygous for the dominant characteristic is this conceivable. As a result, the parents plants' offspring will only exhibit the smooth characteristic, and there won't be any possibility of wrinkled seeds.

Gregor Mendel, an Austrian monk, developed a novel theory of inheritance based on his experimental work with pea plants in the 1860s. Most people thought heredity resulted through the blending of parental "essences" before Mendel, much as how combining blue and yellow paint will yield a green hue. Mendel, on the other hand, thought that each distinct unit (or gene) in an individual's genome acted independently to produce heredity, which is the product of discrete units of inheritance. This Mendelian idea holds that it is through the transmission of these units that a characteristic is passed on. An individual receives one gene for every parent, resulting in a pair of two genes for any given trait.

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Answer:

the answerrrrrr is d

Explanation:

edmentum

The exact position of an electron cannot be known. Instead, we can calculate the probability that an electron is in a specific area based on electron cloud model.

The electron cloud model is a model of an atom in which the atom consists of a small but massive nucleus surrounded by a cloud of rapidly moving electrons.

The electron cloud model says that we cannot know exactly where an electron is at any given time, but the electrons are more likely to be in specific areas.

Thus, the exact position of an electron cannot be known. Instead, we can calculate the probability that an electron is in a specific area based on electron cloud model.

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At the top of its trajectory, the object has potential energy equal to mgh, where m is the mass of the object, g is the acceleration due to gravity, and h is the height from which it is thrown. At the bottom of its trajectory, the object has kinetic energy equal to (1/2)mv², where v is its velocity.

Using the given values, we can calculate the potential energy at the top of the trajectory as:
mgh = (1 kg)(10 m/s²)(20 m) = 200 J
We can also calculate the kinetic energy at the bottom of the trajectory as:
(1/2)mv² = (1/2)(1 kg)(20 m/s)² = 200 J
The difference between these two values represents the energy transferred from the object to the air as it falls:
200 J - 200 J = 0 J

Therefore,  At the bottom of its trajectory, the object has kinetic energy equal to (1/2)mv², where v is its velocity
the best estimate of the energy transferred from the object to the air as it falls is zero, and the correct answer is A. 6 J.

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The current at point A = 3A, The current at B = 6 A, the current at C = 2.25 A, the current at D = 18 A.

The current flowing in the circuit is calculated as follows;

Same current will be flowing at point A and C since they are in series, while different current will be flowing in the rest of the circuit.

Total resistance  is calculated as;

1/R = 1/(3 + 9) + 1/6 + 1/2

1/R = 1/12 + 1/6 + 1/2

R = 1.33

The total current in the circuit;

I = V/R

I = 36 V / 1.33

I = 27 A

Current at B = 36 / 6 = 6 A

Current at D = 36 / 2 = 18 A

Current at A and C = 27 A - (6 + 18)A = 3 A

Current at A = 3 / 12 x 3 A = 0.75 A

current at C = 9 / 12  x 3A = 2.25 A

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When an airplane travels 640 miles from Topeka to Houston in 3. 2 hours, going against the wind. The return trip is with the wind and takes only 2 hours. Then the rate of the airplane with no wind is 260 miles/hr, and the rate of the wind is 100 miles/hr

Let Va is the velocity of the airplane

Va is the velocity of the wind

When flying against the wind then

(Va+Vw)*(3.2 hours) = 640

3.2Va + 3.2Vw = 640

3.2Vw = 640 - 3.2Va

Vw = 200 - Va----------------(1)

When flying with the wind:

(Va-V)*(2 hours) = 640km

2Va - 2Vw = 640

Va - Vw = 320 ----------------(2)

Putting the value of VW in equation (2) we get

Va - (200-Va) = 320

2Va = 320 +200

2Va = 520

Va = 260

Putting this value in equation (2)

Vw =Va - 360

Vw = 100

Therefore the rate of the airplane with no wind is 260 miles/hr, and the rate of the wind is 100 miles/hr

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The path light bends as it travels through air and into glass.

The light is the ray form of energy obtained from the Sun.

The path of light will look like bended when it has crossed the interface of two medium.

As. the light ray falls on the surface of glass travelling through air, the ray appears to bend after refraction.

Thus, the path of light bends as it travels through air and into glass.

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

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

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

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Answer:

D is the answer

Explanation:

D is the most highest one so

the answer is D

Answer:

10 kg rock at 15 degrees celcius

Answer:

a change in velocity can be a change in magnitude (or speed), but it can also be a change in direction.

Part A: The voltage of the capacitor will remain constant until some external influence acts on it. Which is 12V.

Part B: The voltmeter reading will be 24.0 V.

Part C: The voltmeter reading will be 3.0 V.

Given that,

Charge of the capacitor = C

Voltage of the battery = V = 12.0 V

Part A:

A voltmeter is connected across the two plates without discharging them.

What does it read?

The voltmeter will read the same voltage as the battery voltage i.e., 12.0 V. This is because once the capacitor is fully charged, the battery is disconnected without loss of any of the charge on the plates.

Part B:

What would the voltmeter read if the plate separation were doubled?

The capacitance of the capacitor is given by,

C=ϵ\(_0\) \(\frac{A}{d}\)

Where,  ϵ\(_0\) is the permittivity of free space

A is the area of each plate and

d is the separation between the plates

The capacitance is inversely proportional to the separation between the plates. Doubling the separation will reduce the capacitance by half. T

Therefore, capacitance will become 5.0 μF.

Now the charge on the capacitor is given by,

Q = CV = 10.0 × \(10^{-6}\) × 12.0 = \(1.2 \times10^{-4}\) C

Now the capacitance is 5.0 μF, therefore,

Q’ = CV’ = Q

⇒ V’ = Q’/C’ = Q/C =1.2 × \(10^{-4}\)/ 5.0 × \(10^{-6}\) = 24.0 V

Part C:

What would the voltmeter read if the radius of each plate was doubled, but the separation between the plates was unchanged?

The capacitance of the capacitor is given by,

C=ϵ\(_0\) \(\frac{A}{d}\)

Where, ϵ\(_0\) is the permittivity of free space

A is the area of each plate and

d is the separation between the plates

The capacitance is directly proportional to the area of the plates.

Doubling the radius will increase the capacitance by four times.

Therefore, capacitance will become 40.0 μF.

Now the charge on the capacitor is given by,

Q = CV = 10.0 × \(10^{-6}\) × 12.0 = 1.2 × \(10^{-4}\) C

Now the capacitance is 40.0 μF,

therefore,

Q’ = CV’ = Q

⇒ V’ = Q’/C’ = Q/C = 1.2 × \(10^{-4}\) / 40.0 × \(10^{-6}\) = 3.0 V

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Answer:

490 W

Explanation:

F = ma = (50 kg)(9.8 m/s²) = 490 N    (Weight = W = mg)

Work = W = Fd = (490 N)(5 m) = 2450 J

Power = W/t = 2450 J / 5 s = 490 J/s = 490 W  (watts)

Answer: 0.25 m/s

Explanation:  Speed = wavelengt · frequency  

v = λf   and frequency is 1/period  f = 1/T

Then v = λ/T = 5 m / 20 s = 0.25 m/s

The weight of a \(45 kg\) box is \(441.45 N\).

Weight refers to the measure of the force exerted on an object due to the gravitational pull of the Earth.

Given the mass of the box is \(m=45 kg\).

The weight of an object (\(W\)) can be found by multiplying the mass of the object (\(m\)) by the acceleration due to gravity (\(g\)).

So, \(W=mg\).

It is known that acceleration due to gravity, \(g=9.81 m/s^2\).

Hence, the weight of the box, \(W=(45kg)\times (9.81 m/s^2)\).

\(\Rightarrow W=441.45 (kg\cdot m/s^2)\\\Rightarrow W=441.45 N\)

Therefore, the weight of the box is \(441.45 N\).

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I've attached a picture of the 3 electromagnets options below the main electromagnet.

Answer:

The third electromagnet is correct.

Explanation:

From the attached image, in the electromagnet above the 3, we can see that the positive terminal comes before the negative terminal at the bottom left.

Now, when it is reversed, they will both move to the bottom right but their position will change with the negative coming before the positive.

Also, the electric current arrow inside the circle points in the north west direction but when it is reversed, it will point in the north east direction.

Also, the winded coil over the pole remains the same.

Thus, the only option that fulfills this reversed positions is the 3rd electromagnet

Answer:

Explanation:

Its B and C, I got a 5/5 on my test with these answers.

If a ship weighs 52,000 tons and is in isostatic equilibrium when 6,000 tons of cargo is added, the total mass of water that will be displaced by the ship after the cargo is added is (M)= 58000 tons.

The weight is term that means that by how much gravitational force earth going to attract that object. It can be shown easily, W=mg. It is a vector quantity. It can be measured in kg.m/s²

To calculate the mass we are using the formula,

M=m₁+m₂

Here we are given,

m₁= The weight of the ship according to the question. =52,000 tons.

m₂= The weight of cargo that is added on the ship. = 6000 tons.

We have to calculate the total mass of water that will be displaced by the ship after the cargo is added is =M tons.

Now we put the values in above equation, we get

M=m₁+m₂

Or, M= 52000+6000

Or, M= 58000 tons.

So we can say that, the total mass of water that will be displaced by the ship after the cargo is added is (M)= 58000 tons.

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Answer:

Masseter

The masseter runs from the temporal bone (that forms part of the sides and base of the skull) to the lower jaw (the mandible). It lifts the lower jaw, to close the mouth. The masseter is the strongest muscle in your body.

Temporalis

The temporalis begins on two bones of the skull, at the front (the frontal) and at the side and base (the temporal). It runs to the top of the lower jaw (the mandible). Like the masseter, the temporalis helps close the mouth.

Deltoid

The deltoids are the triangular muscles of the shoulder. The strongest point is the central section, which raises the arm sideways. The front and back parts of the muscle twist the arm. Deltoid comes from the Greek word deltoeides, meaning shaped like a (river) delta, which is triangular.

Pectoralis major

(The pecs!) The pectoralis major is a large, fan-shaped muscle. It covers much of the front upper chest, beginning at the breastbone (or sternum) including the second to the sixth ribs.

Adductor Longus

The adductor longus is located on the inner thigh. Adduct means move, so this muscle allows the thigh bone (the femur) to move inward and to the side.

Soleus

Located in the lower leg, the soleus runs from the lower leg bones (the tibia and fibula) to the heel (the calcaneus). The soleus muscle flexes the foot by moving the foot at the ankle. It also helps circulation by pumping blood back up towards the head.

Biceps brachii

The biceps brachii runs from the shoulder to the elbow. It is attached to the shoulder blade (the scapula), and extends along the front surface of the upper arm bone (the humerus). When the bicep contracts, the arm bends at the elbow. Notice that humerus sounds like humour – we call this area of the elbow the funny bone.

The Buccinator

The buccinator muscle compresses the cheek. This muscle allows you to whistle, blow, and suck; and it contributes to the action of chewing.

The Suprahyoid

The suprahyoid muscles raise the hyoid bone, the floor of the mouth, and the larynx during deglutition.

The Splenius

The splenius muscles originate at the midline and run laterally and superiorly to their insertions. From the sides and the back of the neck, the splenius capitis inserts onto the head region, and the splenius cervicis extends onto the cervical region. These muscles can extend the head, laterally flex it, and rotate it.

For the given mode values with n > 1, we will calculate the average frequency and uncertainty for each resonance based on the spread in the measured maximum and minimum sustainable frequencies are 33.3 Hz and 47.7 Hz.

For n = 2, the maximum sustainable frequency is 33.6 Hz, and the minimum sustainable frequency is 33.3 Hz. To calculate the average frequency, we take the average of these two values: (33.6 Hz + 33.3 Hz) / 2 = 33.45 Hz. The uncertainty is obtained by taking half of the difference between the maximum and minimum frequencies: (33.6 Hz - 33.3 Hz) / 2 = 0.15 Hz. Therefore, the average frequency for n = 2 mode is 33.45 Hz with an uncertainty of ±0.15 Hz. The fundamental frequency for this mode would be the minimum sustainable frequency, which is 33.3 Hz.

For n = 3, the maximum sustainable frequency is 48.9 Hz, and the minimum sustainable frequency is 47.7 Hz. Following the same procedure, the average frequency is (48.9 Hz + 47.7 Hz) / 2 = 48.3 Hz, and the uncertainty is (48.9 Hz - 47.7 Hz) / 2 = 0.6 Hz. Therefore, the average frequency for n = 3 mode is 48.3 Hz with an uncertainty of ±0.6 Hz. The fundamental frequency for this mode is 47.7 Hz.

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The man exerts a force on the paddle to move the paddle, and he is not pushing the water directly.

The boat moves forward when the paddle exerts a force on the water, and the water exerts the same amount of reaction force on the paddle.

Due to the reaction force on the paddle by the water, the boat moves forward.

The boatman applies a force pushing the water backward (the action).

The water exerts an equal force along the pole in the opposite direction (this is the reaction).The horizontal component of this reaction is a force that makes the boat move forward into the water.

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--Incomplete Question, The complete Question is- what causes the boat in (figure 1) to move forward? what causes the boat in to move forward? the motion of the water itself. the force the man exerts on the paddle. the force the water exerts on the paddle. the force the paddle exerts on the water.--

gravity caused the two children to land

Answer: Gravity

Explanation: Because it is causing them to go down in which when they bounce they get pulled right back down because of the gravitational pull of the earth's core.

First, for this problem, we will need to know the formula for time dilation

Where t is the time in the reference frame on earth

t0 is the time on the ship

v is the velocity relative to lightspeed

and c is light speed in a vacuum

For this problem, we will need to convert .93x10^8 to a fraction of light speed.

.93x10^8 = .31c

Now, we can plug in the numbers we get from the given

t0 = 6 hours since the ship has been in the air for 6 hours

t = 6.31089

For the answer to be valid, we will convert .31089 to minutes by multiplying it by 60 (60 minutes in a hour)

18.654 minutes

Answer: D

Explanation: The roller coaster gains and loses kinetic energy throughout the ride.

A substance that changes color with temperature, such as a thermochromic material, would be used to construct a thermometer that relies on a light changing color with temperature.

Thermochromic materials exhibit a change in color in response to temperature variations. In the context of a thermometer, a thermochromic material can be incorporated into a device or sensor that measures temperature. When the temperature changes, the thermochromic material undergoes a reversible color change, indicating the temperature reading. For example, liquid crystal thermometers use a thermochromic substance called liquid crystals that change their optical properties, including color, in response to temperature. These liquid crystals are encapsulated in a thin film and applied to a transparent surface, such as a strip or a display. As the temperature changes, the liquid crystals alter their molecular arrangement, leading to a visible color change that can be interpreted as a temperature reading. By observing the color change in the thermochromic material, the user can determine the temperature indicated by the thermometer.

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Answer:

In the lab activity, I used a virtual watershed to demonstrate how pollutants enter and flow through the watershed. I constructed food chains to show how biotic factors are related. I also predicted and modeled how human activity affected the biotic factors in an ecosystem. Based on my observations, I can conclude that biotic and abiotic factors are closely linked and that human activity that changes the environment, like pollution, can affect all the other parts of an ecosystem in a negative way.

Explanation:

Answer:

8.22m

Explanation:

As interpreted from this problem, the angle of launch is 90 degrees as it is thrown straight up. Given an angle launch of 90°, upward initial velocity of 12.7m/s, and initial height of 0m. A much simpler equation can be used to find the maximum height.

\(h_{max} = h_ {0} + \frac{{v_0}^{2} }{2g}\)

this means that the max height is equal to the initial height plus the initial velocity squared divided by 2 times the acceleration of earth's gravity(≈9.8m/s^2 or 10m/s^2 depending on how you fix it).

when substituted into the equation, you should get.

(9.8m/s^2)

hmax = 0 + ((12.7)^2)/(2*9.8)

hmax = 161.29/19.6 ≈ 8.22

hmax = 8.22m

Answer:

London Dispersion forces are a part of wan-der-vals forces. The instantaneous dipole–induced dipole attractions are called London dispersion forces.

London’s dispersion force < dipole-dipole < H-bonding < Ion-ion

London dispersion forces are the weakest intermolecular force.

The unequal distribution of electrons about the nucleus in an atom induces a dipole in the atom. When another atom or molecule comes in contact with this induced dipole, it can be distorted and leads to an electrostatic attraction between atoms or molecules.