name the universal force of attraction that exists between masses ​

i think the answer is true i hope u get it correct

The energy separation between adjacent levels for a hydrogen atom in the 5g state placed in a magnetic field of 0.550 T in the z-direction is approximately 5.101 × 10⁻²⁴ J.

The energy separation between adjacent levels for a hydrogen atom in the 5g state placed in a magnetic field of 0.550 T in the z-direction is given by the formula ΔE = μB * B, where ΔE is the energy separation, μB is the Bohr magneton, and B is the magnetic field strength.
The Bohr magneton (μB) is a physical constant that represents the magnetic moment of an electron orbiting a nucleus. For a hydrogen atom in a magnetic field, the energy separation between adjacent levels depends on this constant and the strength of the magnetic field.
In this case, the magnetic field strength (B) is 0.550 T. The Bohr magneton (μB) is approximately 9.274 × 10⁻²⁴ J/T.
To find the energy separation (ΔE), use the formula:
ΔE = μB * B = (9.274 × 10⁻²⁴ J/T) * (0.550 T)

Thus, the energy separation between adjacent levels for a hydrogen atom in the 5g state placed in a magnetic field of 0.550 T in the z-direction is approximately 5.101 × 10⁻²⁴ J.

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The work done on an object by a constant force is given by the formula:

W = Fd cos(theta)

where:

W = work done (in joules)

F = applied force (in newtons)

d = displacement (in meters)

theta = angle between the force and displacement vectors (in degrees)

In this case, the force is in the same direction as the displacement, so the angle between them is 0 degrees. Therefore, we can simplify the formula to:

W = Fd

We are given that the work done is 100 J and the force is 30 N. Substituting these values into the formula, we get:

100 J = 30 N * d

Solving for d, we get:

d = 100 J / (30 N) = 3.33 meters

Therefore, the displacement is 3.33 meters.

Answer:

No force is more familiar than gravity — it's what keeps our feet on the ground, after all. And Einstein's theory of general relativity gives a mathematical formulation for gravity, describing it as a “warping” of space.

Explanation:

v = u + at

8 = 0 + a (2) (u=0 at rest)

8 = 2a

a= 4 m/s²

Answer: The answer is Skill

Explanation:

The air carbon arc-cutting process requires compressed air in the range of approximately 80 psi to 100 psi. This cutting method utilizes an electric arc to generate heat, which melts the metal being cut, while the compressed air stream blows away the molten material, creating a clean and precise cut.

The pressure of the compressed air plays a crucial role in the effectiveness and quality of the cut.

It is important to maintain the appropriate pressure range (80-100 psi) for optimal cutting results. Insufficient air pressure may result in inadequate removal of molten material, leading to a poor-quality cut or even an incomplete cut. On the other hand, excessive air pressure can cause unnecessary wear on the cutting equipment, as well as create a wider kerf or excessive distortion in the workpiece.

The air carbon arc cutting process is suitable for cutting various types of metals, including steel, stainless steel, aluminum, and cast iron. This method is popular in various industries due to its high cutting speed, minimal heat-affected zone, and versatility in cutting various metal thicknesses. It is essential to select the appropriate cutting parameters, including air pressure, to achieve the best possible cutting results.

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The net charge contained by the cube lies in a electrical field vector region is   1.7 x 10^-19 C.

The electric flux over any closed surface is directly proportionate to the net electric charge q enclosed by the surface, according to Gauss's law of electricity, that also says as = q/0, where 0 is the electric permittivity of free space, which has a value of 8.854 10-12 square coulombs per newton per square metre.

Electric field vector:

E =−3.00i−4.00y^2j+3.00kN/C

Faces +j direction: A = 4m2

E => (-4)x (4^2) x 4 => -256 N.m/c^2

Faces -j direction: A= 4m2

E => (-4) (2^2) x 4 => 64 N.m/c^2

Net flux  => Ф=>  -256 N.m/c^2 + 64 N.m/c^2 = -192 N.m/c^2.

gauss's law

εox Ф => 8.85 x 10^-12 c^2/nm^2 x 192 N.m/c^2

         => 1.7 x 10^-19 C

A vector quantity that exists at every point in space is the electric field E with the vector on top. The force that would be exerted on a unit positive test charge if it were placed at a certain location is indicated by the electric field there.

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Answer:

1500J

Explanation:

Given parameters:

Mass of the block  = 30kg

Height  = 5m

Unknown:

Gravitational potential energy  = ?

Solution:

The Gravitational potential energy of body is due to its position above the ground level.

 Gravitational potential energy  = mass x acceleration due to gravity x height

So;

Gravitational potential energy  = 30 x 9.8 x 5 = 1470J or 1500J

Answer:

In both cases, the sound and spelling are the same, and only the definition changes. Here are 30 more examples of homonyms. Note that some homonyms have more than two meanings (for example, "tender" can also mean sensitive, easily chewed, or even refer to chicken strips), but to keep things simple we've only included two in our homonyms list:

Given:

The speed of the train is,

The actual frequency of the whistle is,

The speed of sound in air is,

To find:

The frequency heard by the observer

Explanation:

The apparent frequency when the train approaches the observer is given by,

Hence, the frequency heard by you is 209.2 Hz.

Answer:

The battery is a store of internal energy (shown as chemical energy). The energy is transferred through the wires to the lamp, which then transfers the energy to the surroundings as light. These are the useful energy transfers - we use electric lamps to light up our rooms.

Explanation:

The heat lost by water is equal to the heat gained by ice here. The heat lost from water for a temperature change of 25 to 10 degree Celsius is 12300 J.

Calorimetry is an analytical technique used to determine the heat energy absorbed or evolved by a system. The calorimetric equation relating the heat energy q with the mass m, specific heat c and the temperature difference ΔT is :

q = m c ΔT

Here, the heat energy gained by the dry ice is equal to the heat lost from water.

temperature difference for water = 25- 10 °C = 15°C

thus, 15°C is lost from water.

mass of water = 200 g

q =200 g × 4.12 J/°C g × 10°C = 12300 J

Therefore, the heat energy lost from water is 12300 J.

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Answer:

the answer is C ----- it is the rate of change of velocity per unit time

Explanation:

acceleration

\( = \frac{velocity(v)}{time(t)} \)

"Activation energy" and "Chemical potential energy" are the types of energy are involved in a chemical reaction.

In a chemical reaction, various forms of energy are involved. The two types of energy mentioned in the question are:

These two types of energy, activation energy and chemical potential energy, play essential roles in chemical reactions. The activation energy determines the feasibility of a reaction, while the chemical potential energy is related to the energy stored within the reactants and products.

In summary, the correct answers are:

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The longer the time between the arrival of the P-wave and S-wave, the farther away is the epicenter.

Hence, Option B is the correct answer.

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I agree with Tosh because inertia depends on mass. So Mac is wrong.

Newton's first law of motion states that an object at rest or uniform motion in a straight line will continue in that path unless acted upon by an external force.

Newton's first law of motion is also called the law of inertia because it depends on the mass of the object.

Inertia is the reluctance of an object at rest to start moving or the relictance of an object in motion to stop moving. The greater the mass of an object, the greater the inertia of the object.

Thus, Mac is wrong while Tosh is right because inertia does not depend on the speed of an object rather, it depends on the mass of the object.

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The force diagram on the desk consists of normal reaction and weight of the pencil.

The net force on the desk in vertical direction is 1 N.

The net force on the desk in horizontal direction is 0.

The given parameters;

The force diagram of the desk is sketched as follows;

                                             ↑ N

                                             ⊕

                                              ↓ W

Where;

The net force on the desk in vertical direction = 1 N

The net force on the desk in horizontal direction = 0

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Given: Uniform surface charge density,

σ = 5nC/m²

Charge per unit area is given by the formula,

`Q = σA`

where, `A` is the area of the charged surface and `Q` is the total charge on the surface.

Area of the charged surface is given by

`A = L * W`

where L is the length and W is the width of the surface.

The charged surface is defined in the region between

x=0 and x=-2,

Therefore,

Length `L = 2 m` and width `W` is infinite.

Hence,

`A = L * W = 2 * ∞ = ∞`

Total charge `Q` on the surface is,

`Q = σ * A = 5 * 10⁻⁹ * ∞ = ∞

the total charge on the surface is infinite because the width of the surface is infinite.

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The amount of M112 required to breach a 6-foot thick first-class masonry wall will depend on various factors such as the dimensions and characteristics of the wall, the placement and configuration of the charge, and the specific properties and performance of the explosive material.

Therefore, it is difficult to give a definitive answer without additional information. However, it is important to note that the use of explosives is a highly regulated activity that requires specialized training and permits. It should only be performed by authorized and trained personnel following established safety protocols and regulations.

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Answer:

You spent 1680000 cents, or $16,800

Answer:

5s

Explanation:

initial distance: 0 m

distance: ? (we don't know)

initial velocity: 0 m/s

velocity: 30 m/s

acceleration: 6 \(m/s^{2}\)

time: ? (we are looking for)

v = v0 + at

plug the numbers in:

30 = 0 + 6(t)

= 30 = 6t

= t = 5

5s

Answer: Due that we don't know the initial speed after hitting the ball, we are going to accept that the ball goes up for half of the time and then falls during other half part, that is 3.0 seconds each. Then we know that ball's movement is ruled by the acceleration of gravity formula, as follows: H = Vi * T + 1/2 * g * T^2 V = Vi + g * T where: H is height, Vi initial speed, g gravity acceleration and T time When we only consider the second half of the trajectory, we have that initial speed at the top of that movement is zero, because ball goes up till top, where stops and starts to go down, so : H = 0 * 3 + 1/2 * 32 * 3^2 = 144 ft. So the height of the pop-up is 144 feet.

The ball rise 144 feet high.

Due to that, we don't know the initial speed after hitting the ball, we are going to accept that the ball goes up for half of the time and then falls during another half part, which is 3.0 seconds each.

Then we know that the ball's movement is ruled by the acceleration of gravity formula, as follows: H = Vi * T + 1/2 * g * T^2 V = Vi + g * T

Where: H is height, V is initial speed, g is gravity acceleration, and T is time.

When we only consider the second half of the trajectory, we have that initial speed at the top of that movement is zero, because the ball goes up to the top, where stops and starts to go down, so:

H = 0 * 3 + 1/2 * 32 * 3^2 = 144 ft.

So the height of the pop-up is 144 feet.

Height is a measure of vertical distance, either vertical extent or vertical position

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Answer:

n = 4 x 10¹⁸ photons

Explanation:

First, we will calculate the energy of one photon in the radiation:

\(E = \frac{hc}{\lambda}\\\\\)

where,

E = Energy of one photon = ?

h = Plank's Constant = 6.625 x 10⁻³⁴ J.s

c = speed of light = 3 x 10⁸ m/s

λ = wavelength of radiation = 567 nm = 5.67 x 10⁻⁷ m

Therefore,

\(E = \frac{(6.625\ x\ 10^{-34}\ J.s)(3\ x\ 10^8\ m/s)}{5.67\ x\ 10^{-7}\ m}\)

E = 3.505 x 10⁻¹⁹ J

Now, the number of photons to make up the total energy can be calculated as follows:

\(Total\ Energy = nE\\1.4\ J = n(3.505\ x\ 10^{-19}\ J)\\n = \frac{1.4\ J}{3.505\ x\ 10^{-19}\ J}\\\)

n = 4 x 10¹⁸ photons

After cycling of the deicing boots, residual ice will decrease as the airspeed decreases or the temperature increases. Deicing boots work by inflating and deflating rapidly, which breaks the ice off the surface of the boots.

Sometimes residual ice can remain after cycling the boots. This residual ice can be reduced by increasing the airspeed or temperature. Increasing the airspeed causes more airflow over the surface of the wings, which helps to remove any residual ice. Similarly, increasing the temperature can help to melt any remaining ice.

It is important to note that residual ice should always be monitored carefully and the pilot should take appropriate actions to ensure that the aircraft remains safe. Ultimately, residual ice can be dangerous and should be minimized as much as possible to prevent any accidents or incidents from occurring.

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Answer:

  C. increase as the airspeed or temperature decreases.

Explanation:

You want to know the effect of temperature and airspeed on residual ice after the deicing boots on an aircraft wing have been cycled.

Ice can accumulate on airplane wings when temperature, humidity, and/or precipitation conditions are just right. An airplane can defend itself against this potentially dangerous condition by ...

After the deicing boot has been cycled, there may be residual ice. This residual ice may increase if the conditions conducive to ice formation remain. That is, it will ...

  increase as the airspeed or temperature decreases, choice C.

__

Additional comment

Of course, the best approach to icing is to avoid flying in conditions conducive to ice formation, or to pass through those conditions as quickly as possible.

SWOT Analysis: Apple Inc. has a strong brand image and innovative product portfolio, but faces challenges such as high product prices and intense competition.

PESTEL Analysis: Apple Inc. is influenced by global political stability, economic conditions, changing consumer preferences, rapid technological advancements, environmental sustainability practices, and legal regulations.

Porter's Five Forces Analysis: Apple Inc. faces moderate threats of new entrants and supplier bargaining power, high buyer bargaining power and threats of substitute products, and intense competitive rivalry.

Value Chain Analysis: Apple Inc.'s value chain includes primary activities like logistics, operations, marketing, and support activities such as procurement, technology development, and human resource management.

SWOT Analysis of Apple Inc.:

PESTEL Analysis of Apple Inc.:

Porter's Five Forces Analysis of Apple Inc.:

Value Chain Analysis of Apple Inc.:

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PV cells are devices that convert sunlight into electricity, enabling the use of solar power. The switch over or change over to PV cells involves transitioning from conventional grid electricity to utilizing solar energy, offering environmental and economic benefits.

Photovoltaic (PV) cells, also known as solar cells, are devices that convert sunlight directly into electricity. They are made of semiconducting materials, such as silicon, that absorb photons from sunlight and release electrons, generating an electric current. PV cells are a key technology in solar power systems, enabling the conversion of solar energy into usable electrical energy.

Switch over or change over, in the context of PV cells, refers to the process of transitioning from using conventional grid electricity to relying on solar power generated by PV cells. This switch can involve installing PV panels on rooftops or in other suitable locations, connecting them to an inverter to convert the DC electricity produced by the PV cells into AC electricity compatible with household or commercial electrical systems.

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Approximately 1580 wavelengths of a helium-neon laser are equivalent to 1.0mm.

a. To correctly describe the interactions of light with objects, we must use a wave model for objects with sizes comparable to or smaller than the wavelength of the light. This is typically in the range of nanometers (10^-9 meters).
b. To determine how many wavelengths of a helium-neon laser are equivalent to 1.0mm, we'll convert 1.0mm to nanometers and then divide by the wavelength of the laser. The helium-neon (He-Ne) laser is known for emitting laser light at specific wavelengths. The two most common wavelengths emitted by a He-Ne laser are 632.8 nanometers (nm) and 543.5 nm.
1.0mm = 1,000,000nm
Now, we'll divide by the wavelength of the helium-neon laser (632.8nm):
1,000,000nm / 632.8nm ≈ 1580 wavelengths
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Answer:what do you need to know

Explanation:

We can determine the magnetic field over two different distances from a network made up of 2 conductors using Ampere's law:

The system's magnetic field is: B = μ₀.I/(2πr).

According to Ampere's law, the magnetic field's dot product times a closed path equals proportional to the current that flows through the path.

∫ B. ds = μ₀ I

B is the magnetic field, S is the closed channel, m is the vacuum permittivity, and I is the current where bold indicates vectors;

For the magnetic fields within the two conductors.

Fixing the associated circular path will cause I, the current which stops inside the path, to flow through the system.

The circle's diameter is

s = 2π r.

B(2π r) = μ₀ I

B = μ₀.I/(2πr).

Thus, the expression for the magnitude of the magnetic field is found as

B = μ₀.I/(2πr).

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Answer: See attached image.