what is the velocity of an electron that goes through a 10 v potential after initially being at rest?

Explanation:

Coil of wire called an winding.

C. The magnitude of the acceleration of a planet in an orbit around the sun is proportional to the reciprocal of the distance between the planet and the sun.

The reciprocal of the distance between the planet and the sun ,This is known as Kepler's third law. The farther a planet is from the sun, the weaker the gravitational force between them and the slower the planet's acceleration.
The magnitude of the acceleration of a planet in an orbit around the sun is proportional to: C. The reciprocal of the distance between the planet and the sun.

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Answer: 3300 m/s

F = ma; units: N = kg(m/s/s); where F and a are both vectors, while m, t, and v (speed) are scalars

We are given the mass, force, and the time; however, speed is our unknown.

[F = 16500 N]  [m = 10 kg]  [t = 2 s]  [v = unknown]

What we can do is use kinematics in order to relate v and t with F and m:

For example, we can use V = V₀ + at

Since F = ma can equal a = F/m, we can replace the a variable within the kinematics equation with F/m, so that:

V = V₀ + at

V = V₀ + (F/m)t

In this problem, we can assume the initial value V to equal 0, giving us:

V = (F/m)t

Plugging in the quantities we get:

V = \(\frac{16500 N}{10kg}\)· 2s

V = 3300 m/s

To further check whether this is the right manipulated equation to use, we can use dimensional anaylsis to determine that:

V = \(\frac{kg(m/s/s) }{kg}\)· s

V = m/s

I hope this helped!

The speed of the rock as a function of time is that is v(0) as the speed of the rock as a function of time.

{Newton's Second Law}}According to Newton's Second Law, the net force acting on a body is - mg-kv −mg+kv=−ma⇒mDV =mg−kv

Integrate (1) to get -k1 ∫mg-kv−kdv =m 1 ∫ger

-k 1 [ln(mg−kv)]=meters

t+c.

ln(mg−kv)= meters−kt−kC.

mg−kv=exp(−c/k)exp(−kt/m)

kv=mg−C exp(−kt/m)

v=k mg-C1exp(−kt/m)

Use the initial conditions to get \dfrac{3mg}{k}=\dfrac{mg-C}=-2mg}k3mgmg-C⇒C. = -2mg

The final form of (6) is

v=\dfrac{mg+2mg\exp(-kt/m)}{k}

v=kmg+2mgexp(−kt/m).

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The rms speed of a gas molecule will remain the same when the pressure and volume are changed to 2p and 2v.

According to the kinetic theory of gases, the rms speed of a gas molecule is directly proportional to the square root of its temperature. In the given scenario, the temperature of the gas remains constant since there is no mention of any change in it.

Therefore, the rms speed of the gas molecule will remain the same. Even though the volume and pressure have increased to 2v and 2p, respectively, the kinetic energy of the gas molecules remains unchanged.

This is because the kinetic energy of the gas molecules only depends on their temperature and not on the pressure or volume of the container.

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The answer is B: continents looked like they fit together.

(Edge 2020!)

~ V.

The first caused people to consider that the continents were once one large landmass was that continents looked like they fit together.

Wegener's first piece of proof became that the coastlines of some continents are healthy collectively like pieces of a jigsaw puzzle. people observed the similarities between the coastlines of South US and Africa on the primary world maps, and a few suggested the continents were ripped aside.

Impacted with the aid of changing temperatures in the layers of the planet, tectonic plates move over and under each other, causing shifts within the locations of the continents over time. The movement of tectonic plates additionally causes adjustments in the ocean floor, and volcanoes regularly form in which one tectonic plate meets every other.

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Answer:

The description of the frame of reference is characterized below.

Explanation:

The total mechanical energy of the bicyclist is 1400 J, obtained by adding her potential energy of 720 J and kinetic energy of 680 J. The correct answer is option B.

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The acceleration of the Boeing 737 during takeoff is 1.389 m/s^2. This value represents the rate at which the aircraft's velocity changes with time.

The takeoff speed of an aircraft is the minimum speed required for the aircraft to become airborne and climb safely into the sky. The acceleration of an aircraft during takeoff is the rate at which its velocity changes with time. In this case, the takeoff speed of a Boeing 737 is 250 km/h and it reaches this speed after 50 seconds. To determine the acceleration, we need to calculate the change in velocity (final velocity minus initial velocity) and divide it by the time taken.

Detailed Explanation:

The initial velocity of the Boeing 737 is 0 km/h (assuming the aircraft is at rest before takeoff). The final velocity is 250 km/h. To convert these speeds from km/h to m/s, we divide by 3.6. The initial velocity is 0 m/s and the final velocity is 250/3.6 = 69.44 m/s. The change in velocity is 69.44 m/s - 0 m/s = 69.44 m/s. To find the acceleration, we divide the change in velocity by the time taken, which is 50 seconds.

Acceleration (a) = (change in velocity) / time

a = (69.44 m/s) / (50 s)

a = 1.389 m/s^2

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The final temperature after adding 7300 J of heat to 3.5 kg of water is approximately 12.5 °C.

To calculate the temperature to which 7300 j of heat will raise 3.5 kg of water that is initially at 12.0 ∘c, we can use the formula:

Q = m * c * ΔT

Where Q is the amount of heat transferred, m is the mass of the substance being heated (in kilograms), c is the specific heat capacity of the substance (in joules per kilogram per degree Celsius), and ΔT is the change in temperature (in degrees Celsius).

We know that:

- Q = 7300 j
- m = 3.5 kg
- c = 4186 j/kg⋅c∘
- The initial temperature (T1) is 12.0 ∘c.

We can rearrange the formula to solve for ΔT:

ΔT = Q / (m * c)

Plugging in the values, we get:

ΔT = 7300 j / (3.5 kg * 4186 j/kg⋅c∘)

ΔT = 0.496 ∘c

So, 7300 j of heat will raise 3.5 kg of water from 12.0 ∘c to 12.496 ∘c.

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The power generated or output power of the turbine is determined as 42.96 W.

The power generated or output power of the turbine is calculated as follows;

eff = 0utput power/1nput power x 100%

13 = 0utput power/(0.62 x 533)

0.13 = 0utput power/330.46

0utput power = 0.13 x 330.46

0utput power = 42.96 W

Thus, the power generated or output power of the turbine is determined as 42.96 W.

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Let v be the billiard ball's initial speed. The total momentum of the ball-marble system is conserved between the times before and after their collision, so that

(1 kg) v + (0.1 kg) (0 m/s) = (1 kg) (0.3 m/s) + (0.1 kg) (3 m/s)

Solve for v :

v + 0 = 0.3 m/s + 0.3 m/s

v = 0.6 m/s

Answer:

D

Explanation:

There are no exceptions to these laws under specific stated conditions..

The laws of science are statements that describe or predict a range of phenomena as they appear in nature. Laws explain facts determined by experiment. Laws do not have absolute certainty and be changed by future experiments and observations.

Answer:

there are no exceptions to these laws under specific stated conditions.

Explanation:

There are no exceptions to scientific laws under certain stated conditions. This is the main factor that distinguishes scientific theories from scientific laws.

Both scientific theories and laws are based on extensive observations, experimentation, and reasoning, but scientific theories are subject to change over time as new technology is invented and new evidence emerges.

Answer: greater than

Explanation:

Answer:

the correct answer would be D

Explanation:

D is the correctly balanced

Answer:  14,286 kg

Explanation:

Mass and velocity, have a positive correlation to momentum.

The formula to determine momentum is:

Momentum = Mass x Velocity

So, if we want to determine the mass of the object, the formula can be rearranged to look like this:

Momentum/Velocity = Mass

And can be solved by imputing the values given in the question:

Mass = (100 kg*m/s) ÷ (7 m/s)

Mass = 14,286 kg

The acceleration of the particle is given as the derivative of velocity with respect to time.

The derivative of velocity is acceleration. Acceleration is the rate of change of velocity over time. It is a vector quantity, meaning it has both magnitude and direction. Acceleration is typically measured in meters per second squared (m/s2). Acceleration can be positive, negative, or zero. Positive acceleration means that the velocity is increasing, negative acceleration means that the velocity is decreasing, and zero acceleration means that the velocity is constant. Acceleration can be caused by forces such as gravity, friction, and propulsion. For example, when an object is dropped, the force of gravity causes it to accelerate until it reaches a terminal velocity.

From the graph, it can be seen that the velocity of the particle increases with time when t is less than 1s, and it decreases with time when t is more than 1s. This implies that the acceleration of the particle is positive when t is less than 1s and is negative when t is more than 1s. Hence, the variation of acceleration of the particle with time is that it is positive when t is less than 1s and it is negative when t is more than 1s.

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Answer:

D. The slope is 4, and the y-intercept is 12.

Explanation:

Use slope formula.

y2-y1/x2-x1

Points are (-3, 0) and (-2, 4)

4-0/-2+3=

=4/1=4

Slope is 4.

Use point slope formula.

y-y1=m(x-x1)

y-0=4(x+3)

y=4x+12

The y-intercept is 12.

D. The slope is 4, and the y-intercept is 12.

Hope this helps!

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Explanation:

Watts =  amp * volts

watts/ volts = amps

1810 w / 120 v =  15.5 A

1440 w / 120 v = 12 A

60 w/ 120 v = .5 A

In reality, they are probably drawing ZERO amps     as the circuit breaker (15 Amps as given)  will likely trip or the wires will burn !

The current drawn by each device in a parallel circuit is determined by the resistance of each device.

Since the toaster has the highest resistance, it will draw the least amount of current, while the electric frying pan with the lowest resistance will draw the highest current. The lamp, being a light bulb, will draw a medium amount of current.

Using Ohm's law, the current drawn by each device can be calculated as follows:

Toaster:  1,810 W ÷ 120 V = 15.08 A

Electric Frying Pan: 1,440 W ÷ 120 V = 12 A

Lamp: 60 W ÷ 120 V = 0.5 A

Since all three devices are connected in parallel, the total current drawn from the outlet will be the sum of the individual currents drawn by each device, which is 15.58 A. This is below the maximum current rating of the circuit (15 A), so the circuit is safe.

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It states that: "At constant volume the pressure of a gas sample is directly proportional to the absolute temperature."

This means that doubling the pressure of the gas will cause its absolute temperature to double.

Mathematically this law is expressed as:

       \(\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{\dfrac{P_{1}}{T_{1}}=\frac{P_{2}}{T_2} \iff \ P_1T_2=P_2T1 } \end{gathered}$} }\)

We have that the data is:

P₁ = 0.87 atm

T₁ = 25 °C + 273 = 298 K

T₂ = 50 °C + 273 = 323 K

P₂ = ?

We clear for the final pressure:

\(\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{P_{2}=\frac{P_1T_2}{T_{1}} } \end{gathered}$}}\)

\(\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{P_{2}=\frac{(0.87 \ atm)\cdot(323\not{k})}{298\not{k}} } \end{gathered}$}}\)

\(\boxed{\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{P_{2}=0.94 \ atm } \end{gathered}$}}}\)

While X-rays and gamma rays can kill cells, their role in causing cancer is primarily through the damage they inflict on the DNA within cells. This damage can disrupt the normal control mechanisms of cell growth and division, leading to uncontrolled cell proliferation and the development of cancer. The risk of radiation-induced cancer depends on factors such as the dose and duration of exposure, the type of radiation, and individual susceptibility.

X-rays and gamma rays are forms of ionizing radiation that have the ability to damage cells and their DNA. It is true that excessive exposure to ionizing radiation can lead to cell death. However, it is important to understand that cancer is not simply the result of cell death, but rather the uncontrolled division and growth of cells.

Radiation-induced cancer occurs when the DNA within cells is damaged by ionizing radiation. This damage can lead to mutations in the genetic material, disrupting the normal control mechanisms that regulate cell division and growth. These mutations can cause cells to multiply uncontrollably, leading to the development of a tumor.

While ionizing radiation can kill cells, it can also damage the DNA within surviving cells. If the DNA damage occurs in genes that control cell growth and division, it can disrupt the normal checks and balances that prevent uncontrolled cell proliferation. Additionally, radiation can induce further mutations in DNA over time, increasing the risk of cancer development.

It is important to note that not all exposures to ionizing radiation result in cancer. The risk of developing cancer from radiation exposure depends on various factors, including the dose and duration of exposure, the type of radiation, and individual susceptibility. High doses of radiation and repeated exposures over a long period of time are more likely to increase the risk of cancer.

Furthermore, it is worth mentioning that the benefits of medical procedures involving X-rays and gamma rays, such as diagnostic imaging and radiation therapy, generally outweigh the associated risks. Strict safety protocols and regulations are in place to minimize unnecessary exposure to radiation and ensure that the benefits outweigh the potential harm.

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Answer:

There is direct evidence that the weak and electromagnetic forces were once unified as a single electroweak force from the study of subatomic particles.

Explanation:

The discovery of the W and Z bosons, which are particles that mediate the weak nuclear force, provided strong evidence that the weak force was once part of a larger electroweak force. The fact that the W and Z bosons have electric charge, and that their masses are related to the masses of the photon (the particle that mediates the electromagnetic force), supports the idea that the weak and electromagnetic forces were once part of a single electroweak force. Additionally, the mathematical symmetry of the electroweak theory, which unifies the weak and electromagnetic forces, provides further evidence for this theory.

Answer:

Chemical reactions occur when chemical bonds between atoms are formed or broken. The substances that go into a chemical reaction are called the reactants, and the substances produced at the end of the reaction are known as the products.

Explanation:

Answer:

In a chemical reaction, the products are the substance present after the reaction.

Explanation:

The measuring accuracy of Vernier Calipers and Portable CMMs varies. While Vernier Calipers typically offer accuracy within the range of 0.02 to 0.05 mm, Portable Coordinate Measuring Machines (CMMs) can achieve accuracy up to 0.02 mm or even better. Portable CMMs tend to be more accurate than Vernier Calipers due to their advanced technology and ability to measure in three dimensions.

Vernier Calipers are handheld tools used for measuring linear dimensions. They consist of a main scale and a sliding Vernier scale, allowing for precise measurements. The accuracy of Vernier Calipers depends on various factors such as the quality of manufacturing, user technique, and instrument condition. Generally, Vernier Calipers can provide measuring accuracy within the range of 0.02 to 0.05 mm.

On the other hand, Portable CMMs are advanced measurement devices that use technology such as laser scanning or touch probes to measure objects in three dimensions. They can accurately capture complex shapes and provide dimensional data with high precision. Portable CMMs are typically used in industries like manufacturing, aerospace, and automotive for quality control and inspection purposes. These devices can achieve accuracy up to 0.02 mm or even better, surpassing the accuracy offered by Vernier Calipers.

The higher accuracy of Portable CMMs can be attributed to their advanced technology and the ability to measure objects in multiple dimensions. Unlike Vernier Calipers, which primarily provide linear measurements, Portable CMMs can capture intricate geometries and surface details. They utilize sophisticated algorithms, computer processing, and precise probes or scanning mechanisms to ensure accurate and reliable measurements.

In conclusion, while Vernier Calipers offer decent accuracy for linear measurements, Portable CMMs provide higher accuracy due to their advanced technology and three-dimensional measurement capabilities. When precise measurements with complex geometries or detailed surfaces are required, Portable CMMs are the preferred choice.

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Answer:

C. It is the result of diffraction

Explanation:

I just took the test

Answer:

C

1.2.5

trust me i just did it

Explanation:

Answer:

time

Explanation:

power = work done ÷ time

The instrument that would be the most help in finding this cloud is D. a sensitive infra-red telescope in orbit around the Earth.

It should be noted that an astronomer is a scientist who focuses on the study of the Earth.

In this case, the instrument that would be the most help in finding this cloud is a sensitive infra-red telescope in orbit around the Earth.

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The Atwood machine has a 2 kg block on one side and 8 kg block on the other side.

Let us sketch a free-body diagram to better understand the problem.

Where F_tens is the tension in the string and F_grav is the force due to gravity.

The force due to gravity on the 2 kg block is given by

The force due to gravity on the 8 kg block is given by

According to Newton's second law of motion, we have

The net force acting on the 2 kg block is given by

The net force acting on the 8 kg block is given by

Now, we have two equations and two unknowns. Let us solve these two equations simultaneously

Substitute eq.1 into eq.2

So, the acceleration of the two blocks is 5.89 m/s^2

Substitute a = 5.89 into eq. 1 to find the tension in the string.

So, the tension of the string is 31.4 N

Dalton's Law of Partial Pressures states that the total pressure of a mixture of gases is the sum of the partial pressures of each component in the mixture. In other words, the total pressure of a gas mixture is equal to the sum of the partial pressures of each gas in the mixture. The correct option is D.

Dalton's law is based on the kinetic theory of gases and assumes that gases behave independently of each other. This means that each gas in a mixture will exert its own pressure and that the total pressure of the mixture is the sum of the pressures of each gas present.

Dalton's Law of Partial Pressures is important in many applications, including gas chromatography and the study of atmospheric gases. It is also used in the medical field, where it is used to calculate the concentration of gases in the bloodstream and in anesthesia delivery systems.

Dalton's law can be expressed mathematically as:

Ptotal = P1 + P2 + P3 + ...where Ptotal is the total pressure of the gas mixture, and P1, P2, P3, etc. are the partial pressures of each gas in the mixture. The correct option is D.

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After the universe's 13.7 billion year old Big Bang, it has gone through numerous phases or epochs.

It may have experienced more activity and change in the first second than in all the billions of years since because of the harsh environment and violence of its very early beginnings.

We can construct a rough timeline as follows using our current understanding of how the Big Bang might have developed, taking into account notions about inflation, the Grand Unification, etc.

The Planck Epoch (or Planck Era), which spans from 0 to around 10-43 seconds (1 Planck Time), is the closest that modern physics can come to the beginning of time itself.

Therefore, After the universe's 13.7 billion year old Big Bang, it has gone through numerous phases or epochs.

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