a solenoid 4.00 cm in diameter and 20.0 cm long has 500 turns and carries a current of 15.0 a. calculate the magnetic flux through the circular cross-sectional area of the solenoid.

The radius of the copper cable is approximately 0.004 m.


The resistance of the copper cable can be calculated using Ohm's law: R = V/I, where V is the potential difference and I is the current. Thus, R = (1.6 x 10^-2 V) / (1200 A) = 1.33 x 10^-5 ohms.

The resistance of a cylindrical conductor is given by R = (ρL) / A, where ρ is the resistivity of the material, L is the length of the conductor, and A is its cross-sectional area. Solving for the area, we get A = (ρL) / R.  

Assuming the cable is made of pure copper with a resistivity of 1.68 x 10^-8 ohm-meters, and using the length of the two points on the cable, which is 0.24 m, we can calculate the area of the cross-section of the cable. A = (1.68 x 10^-8 ohm-meters x 0.24 m) / (1.33 x 10^-5 ohms) = 0.0000757 m^2.  

Finally, we can solve for the radius using the formula for the area of a circle, A = πr^2. The radius of the cable is approximately 0.004 m.

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The electrical wires leading to your building are typically thinner than the main distribution lines.

This is because the main distribution lines are designed to carry a larger amount of electrical power across longer distances, so they require a thicker wire to minimize resistance and energy loss. In contrast, the wires leading to your building carry less power as they are intended for local distribution, which requires less electrical load and shorter distances.

The thickness of wires is determined by the amount of power they carry. The main distribution lines carry a much larger amount of power than the wires leading to individual buildings. This is because the power transmitted through the main distribution lines is distributed to multiple buildings and residential areas, whereas the wires leading to a single building are designed to carry power for that specific building's needs.

Hence, the wires leading to a building would carry less power and may be thinner than the main distribution lines.


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The correct answer is option B. It travels up and down. Transverse waves are characterized by the fact that they cause particles in the medium to move perpendicular to the direction of wave propagation.

Transverse waves are a type of wave that causes the particles of the medium to move up and down or side to side as the wave passes through them.

The other options are not right because:

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The maximum speed of the protons accelerated by a voltage of 1.900E1 MegaVolts is approximately 5.92E6 meters per second.

In non-relativistic conditions, the kinetic energy of a proton accelerated by a voltage can be calculated using the formula KE = qV, where KE is the kinetic energy, q is the charge of the proton (1.602E-19 Coulombs), and V is the accelerating voltage.

The maximum speed of the protons can be obtained by equating their kinetic energy to the energy gained from the accelerating voltage. The kinetic energy can be expressed as KE = (1/2)mv^2, where m is the mass of the proton (1.673E-27 kg) and v is its speed.

Setting the kinetic energy equal to the energy gained from the voltage, we have (1/2)mv^2 = qV. Rearranging the equation and solving for v, we find v = √(2qV/m).

Substituting the given values of q (1.602E-19 C), V (1.900E1 MegaVolts = 1.900E7 Volts), and m (1.673E-27 kg) into the equation, we can calculate the maximum speed of the protons. The resulting value is approximately 5.92E6 meters per second.

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Answer:

-7.5

Explanation:

edge 2021

None of the given options (a, b, c) are equivalent to 652 mmHg.

To determine which of the following options are equivalent to 652 mmHg, we need to compare them and check if they represent the same pressure value. Here are the options:

a) 871 Pa

b) 0.881 atm

c) 17.89 psi

To determine if any of these options are equivalent to 652 mmHg, we can use the following conversion factors:

1 atm = 760 mmHg

1 psi = 51.71 mmHg

1 Pa = 0.0075 mmHg

Now, let's check each option:

a) 871 Pa:

To convert mmHg to Pa, we can use the conversion factor of 1 Pa = 0.0075 mmHg.

652 mmHg × 0.0075 Pa/mmHg ≈ 4.89 Pa

The value of 871 Pa is not equivalent to 652 mmHg, so this option is not correct.

b) 0.881 atm:

To convert mmHg to atm, we can use the conversion factor of 1 atm = 760 mmHg.

652 mmHg ÷ 760 mmHg/atm ≈ 0.858 atm

The value of 0.881 atm is not equivalent to 652 mmHg, so this option is not correct.

c) 17.89 psi:

To convert mmHg to psi, we can use the conversion factor of 1 psi = 51.71 mmHg.

652 mmHg ÷ 51.71 mmHg/psi ≈ 12.61 psi

The value of 17.89 psi is not equivalent to 652 mmHg, so this option is not correct.

In conclusion, none of the given options (a, b, c) are equivalent to 652 mmHg.

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The description of the House of Usher in the first paragraph helps to create a mood of gloom and desolation.

In Edgar Allan Poe's "The Fall of the House of Usher," the detailed description of the House of Usher in the first paragraph sets a somber and desolate tone, contributing to a mood of gloom. The narrator describes the mansion as "dull, dark, and soundless," with decaying walls and a tarnished appearance. The imagery of the "vacant eye-like windows" and the "rank sedges" surrounding the building evokes a sense of abandonment and decay. Additionally, the oppressive atmosphere is enhanced by the use of words such as "insufferable gloom," "melancholy," and "feeble gleams of encrimsoned light." These descriptions create a pervasive feeling of sadness and isolation, establishing a mood of gloom and desolation throughout the story. The reader is immersed in a world characterized by decay and despair, setting the stage for the tragic events that unfold within the House of Usher.

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Answer:

360 degrees is one full rotation starting at zero

it take 2 s  to the flag to rotate once in a full circle  with 3 rad/s of angular velocity.

Angular velocity is "rate of change of angular displacement with respect to time". i.e. ω= dθ/dt. it is also defined as angular displacement over time. i.e. ω = angular displacement/Time.

Angular velocity shows how much angle can be covered in unit time. It's SI unit rad/s.

Angular acceleration is rate of change of Angular velocity with respect to time.

i.e. α = dω/dt if an object changes its angular velocity in short time, we can say that it has greater angular acceleration. It is expressed in rad/s².

In this problem we have to calculate time, but the angular velocity id not given.

Consider the angular velocity is 3 rad/s.

Given,

Angular displacement θ = 2π

angular velocity ω = 3 rad/s

Time t = ?

Time = θ/ω

Time = 2π/3 rad/s = 2 s

Hence the answer is 2s.

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A star is in hydrostatic equilibrium when the outward push of pressure due to core burning is exactly in balance with the inward pull of gravity.

When the hydrogen in a star's core has been used up, burning ceases, and gravity and pressure are no longer in balance. This causes the star to undergo significant changes.

To bring a star back into hydrostatic equilibrium, one of the following evolutionary changes can occur:

1. The star's core contracts: As the core contracts, its temperature and pressure increase. This increased pressure allows the star to burn helium,

which releases more energy and pushes back against the inward pull of gravity, thus restoring hydrostatic equilibrium.

2. Hydrogen shell burning: When the hydrogen in the core is used up, hydrogen burning can still continue in a shell surrounding the core.

The energy released from this burning can create enough outward pressure to balance the inward pull of gravity, maintaining hydrostatic equilibrium.

3. Expansion of the outer layers: As the core contracts, the outer layers of the star may expand due to increased heat and pressure from the core.

This expansion results in the star's outer layers cooling and the star becoming a red giant. With the increased size, the outward pressure is now sufficient to balance the inward pull of gravity, restoring hydrostatic equilibrium.

In summary, when a star's core hydrogen is depleted, hydrostatic equilibrium can be restored through core contraction, hydrogen shell burning, or expansion of the outer layers.

These evolutionary changes allow the star to maintain a balance between the outward push of pressure and the inward pull of gravity, thus ensuring its stability.

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D&C Are the answers sorry if it's too short.

Two factors. The independent variable is the light colour and the dependent variable is the mood. The ambient colour is not a factor as it is being controlled in each room.

A within-subjects experiment is used to assess the effect of light colour on mood. The experiment has a single light bulb with three different ambient colour schemes. The experiment features three rooms each with a different light bulb, there are factors in this experiment.
In this within-subjects experiment designed to assess the effect of light colour on mood, there is 1 factor being manipulated, which is the ambient colour of the light bulb.

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The statement is false.

Answer:

Explanation:

River is 7.5 m wide . Time taken by it cover this displacement

= displacement / velocity

=  7.5 / 0.4  

= 18.75 s

During this period , swimmer  will have a displacement of 30 m due to velocity of river water .

Displacement of 30 m downstream will be due to flow of river .

velocity of water flow = displacement / time

= 30 / 18.75

= 1.6 m /s

The effects of gravity if we were dropped out in space is the feeling of weightlessness.

This is defined as the universal force of attraction acting between all matter.

In space, there is no ground to push against astronauts hence the feeling of weightlessness by the astronauts which was why it was chosen as the nost appropriate choice.

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any procedure where velocity fluctuates

Any procedure where the velocity varies is referred to as acceleration. There are only two methods to accelerate because velocity is both a speed and a direction: changing your speed or changing your direction.

An object has positive acceleration if it is accelerating and travelling in the right direction. Positive acceleration was demonstrated in the first example by the speeding car. The acceleration is in the same direction as the car's motion because it is moving forward and speeding up.

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At any any procedure where velocity fluctuates.

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Answer:

below the sedimentary rock layer

The amount of heat transfer required to raise the temperature of a substance depends on its specific heat capacity (often denoted as "C") and its mass.

The formula to calculate the heat transfer (Q) is given by Q = m * C * ΔT, where "m" represents the mass of the substance and ΔT is the change in temperature.

The specific heat capacity is a measure of how much heat energy is required to raise the temperature of a given mass of a substance by one degree Celsius or Kelvin. Different substances have different specific heat capacities, which means they require varying amounts of heat transfer to achieve the same temperature change.

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The electric potential energy of the charge is 2.7 J. The formula to calculate electric potential energy is U = q × V, where U is the potential energy, q is the charge, and V is the electric potential. Plugging in the given values, U = (4.5 × 10^-5 C) × (2.0 × 10^4 N/C) × (0.030 m) = 2.7 J.

The electric potential energy (U) of a charged object in an electric field is given by the formula U = q × V, where q is the charge of the object and V is the electric potential at the location of the object.

In this case, the charge (q) is 4.5 × 10^-5 C, and the electric field strength (V) is 2.0 × 10^4 N/C. The distance of the charge from the source of the electric field is given as 0.030 m.

Plugging in the values into the formula, we have U = (4.5 × 10^-5 C) × (2.0 × 10^4 N/C) × (0.030 m). Simplifying the expression, we get U = 2.7 J.

Therefore, the electric potential energy of the charge is 2.7 Joules.

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Answer:

C. unlikely to combine with other elements.

Explanation:

In Chemistry, electrons can be defined as subatomic particles that are negatively charged and as such has a magnitude of -1.

Valence electrons can be defined as the number of electrons present in the outermost shell of an atom. Valence electrons are used to determine whether an atom or group of elements found in a periodic table can bond with others. Thus, this property is typically used to determine the chemical properties of elements.

Noble gases are chemical elements with eight valence electrons and as such have a full octet. Some examples are argon, neon, etc.

Hence, the full octet makes the gas (neon) unlikely to combine with other elements.

Answer:

see the explanation below

Explanation:

Momentum is a product of the mass of a particle and its velocity.

and also, momentum is a vector quantity; i.e. it has both magnitude and direction.

Now a plane in the air has both magnitude and velocity

When the plane lands the velocity will amount to zero although the mass is still very much intact

Now the mass* zero velocity= zero

Hence when a plane lands the momentum is zero

Given that the progressive wave equation is represented by y=Asin2π(0.15t-0.1x). Let's find the period, amplitude, frequency, wavelength, and velocity.

The wave equation is represented by y=Asin2π(0.15t-0.1x). The standard wave equation can be written asy = Asin(kx-ωt + Φ)Where,k = wave numberω = angular frequencyΦ = phase angle for the given equation, k = 0.1 and ω = 0.15.Amplitude:

Amplitude = A = maximum displacement from the mean position.A = 1Frequency: Frequency is the number of complete oscillations made by a point on the wave in one second. It is denoted by f.f = ω/2πFrequency, f = 0.15/2π = 0.0238 HzPeriod: Period is the time taken by one complete oscillation.

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Answer:

it's gravitational potential energy would have converted to kinetic energy half way back when it's falls

Answer:

4.3 km

Explanation:

Explanation:

they are subatomic particles that interact by means of the strong force. as they are strong nuclear force its so powerful, it makes it extremely difficult to separate quarks.

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Quarks are elementary particles of matter. And they can be extracted in neutrino - induced dilepton events

QUARKS

A quark can be described as one of the fundamental units of matter. Under particle Physics, when two or more ionized quarks come together, they will form a composite particle called hadron.

Hadrons are particles that are affected by strong force. Examples of hadron are:

The quark model of hadrons helps to resolve many fundamental particle problems.

Apart from cosmic radiation, quarks can be extracted in neutrino - induced dilepton events with the use of hydrogen and deuterium exposure.

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Answer:

first a representative sponsor is a bill the bill is then assigned to a committee for study if released by the committee the bill is put on a calendar to be voted on debated or amended if the bill passes by simple

Answer:

Explanation:

Let\(\alpha\)  be the angle

\(tan\alpha = Ay/Ax=88.4/174= .508\\\)

or 26.9 degrees NE

Answer:

when you are paddling the push carry on when you paddle the hard put on the push.

Answer:

Because of inertia

Explanation:

As stated in Newton first law "An object at rest will stay at rest, an object in motion will stay in motion unless it is acted upon by a force."

For an example:

If you have a drink without a lid in a car and a car suddently the car stop, u will automatically try to catch the drink preventing it from spilling. This is because that the drink that was in motion with the car want to stay in motion, but when the car stop, the drink still wanna be in motion, that's why it will be flying off and spill if u don't catch it.

Back to the question:

if a bicyccle is in motion, it will wants to be in motion untill a force act upon it, let's say a bump or fricition.

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A ball is thrown directly up from a height of 0m with an initial speed of 2m/s. The height of the apex of the throw is approximately 0.825 meters.

The height of the apex of the throw can be calculated as follows:

h = vi * t - 0.5 * g * t^2

where:

vi = initial velocity = 2 m/s (up)

t = time of flight = 2 * vi / g

g = acceleration due to gravity = 9.8 m/s^2

Plugging in the values, we get:

t = 2 * 2 / 9.8 = 0.408 seconds

h = 2 * 0.408 - 0.5 * 9.8 * 0.408^2

h = 0.825 meters

Initial velocity refers to the magnitude and direction of the velocity of an object at a specific point in time. It is an important concept in physics, particularly in the study of kinematics, which is the branch of mechanics that deals with the motion of objects without considering the forces that cause the motion.

Initial velocity can be determined by various factors such as the position, velocity, and acceleration of an object at a given time. In most cases, it is expressed in meters per second (m/s) or other units of speed. Initial velocity plays a critical role in determining the trajectory and motion of an object. For example, when a ball is thrown, the initial velocity determines the initial speed and direction of the ball, which in turn affects its trajectory and how far it will travel.

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As per the question, A manned spaceflight from Earth to Mars will travel much, much slower than the speed of light, and is likely to require as much as 9 months one way. Therefore, we are required to estimate how many kilograms of water are required for each astronaut for drinking, washing, and bathing over 9 months (assuming the water is not recycled on board).

How many kilograms of water are required for each astronaut for drinking, washing, and bathing over 9 months?

As per the given data, 1 liter of water has a mass of 1 kilogram (kg), and 1000 kg is a ton. So, a ton of water has 1000 × 1000 kg = 1,000,000 kg of mass. Mars-bound astronauts will travel for 9 months or 270 days, and for each astronaut, 5 liters of water are needed per day (for drinking, washing, and bathing).

Therefore, for each astronaut, the total water needed for 9 months is 270 days × 5 liters = 1350 liters or 1350 kg (since the mass of 1 liter of water is 1 kg).

Comparing the mass of water  with the estimated water required for the Mars-bound astronauts:

Now, to compare the mass of the water estimated for the Mars-bound astronauts with the mass of the entire lunar lander that delivered Apollo astronauts to the surface of the Moon had a mass of 15 tons. We know that 1 ton is equivalent to 1000 kg. Therefore, the mass of the entire lunar lander that delivered Apollo astronauts to the surface of the Moon is 15 × 1000 = 15,000 kg.

To compare the two, we can divide the mass of the lunar lander by the mass of water estimated for each Mars-bound astronaut.15,000 kg / 1350 kg ≈ 11.11. This shows that the mass of water estimated for each Mars-bound astronaut is much less than the mass of the entire lunar lander that delivered Apollo astronauts to the surface of the Moon. Therefore, the lunar lander had a mass of about 11 times greater than the mass of water estimated for each Mars-bound astronaut.

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