1300 J of work are done when a rock is pushed 40 m. How much force was used? ​

a) The reducible representation for the eight ligand orbitals in this geometry is 8σ.

b) The Os symmetry labels that describe the irreducible representations for the SALCS are \(3A_1 + 2A_2 + E\).

c) The symmetries of the s, d, and d orbitals available for bonding on the metal explain why cubes cannot form for MLe complexes.

a) The reducible representation for the eight ligand orbitals in this geometry can be represented as 8σ, where σ is the symmetry element for a single ligand orbital. This representation can be reduced to irreducible representations using character tables.

b) The Os symmetry labels that describe the irreducible representations for the SALCS can be determined by multiplying the reducible representation by the character table for the symmetry group of the geometry. In this case, the SALCS has \(3A_1 + 2A_2 + E\) irreducible representations.

c) The symmetries of the s, d, and d orbitals available for bonding on the metal explain why cubes cannot form for MLe complexes. The d orbitals have the same symmetry as the SALCS orbitals, so they can form strong π bonds with the ligands. The s orbitals have a different symmetry and cannot form strong π bonds. This means that the metal-ligand bonds are stronger along the octahedral axes than along the cube edges. As a result, octahedral and square anti-prism geometries are more stable for MLe complexes than cube geometries.

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The mass of satellite B is equal to 2 X 10³ Kg.

Mass of satellite A = m = 1.5 X 10³ Kg

Mass of satellite B = m'

Velocity of satellite A = v = 8 X 10³ m/s

Velocity of satellite B = v' = 6 X 10³ m/s

To find mass of satellite B = m' =

Using the theorem of conservation of linear momentum we get,

= momentum of satellites initially = momentum of satellites finally

= mv + m'v' = m(0) + m'(0)

= mv + m'(-v') = 0

= mv = + (m'v')

= 1.5 X 10³ X 8 X 10³ = m' X 6 X 10³

= m' = ( 1.5 X 10³ X 8 X 10³ ) / 6 X 10³

= m' = 2000 Kg

Thus, mass of satellite B is 2 X 10³ Kg.

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It is impossible to determine how much work this force does as the particle moves a distance \(\Delta r\hat i + \Delta  3\hat j\) without knowing more information about the other forces acting on the particle.

The work done by a force on a particle is given by the dot product of the force and the displacement of the particle:

W = F · Δr

where W is the work done, F is the force, and Δr is the displacement vector.

In this case, we are given that one of the forces is not constant and depends on location as given by F = (Bx + Cy)i. However, we do not know anything about the other forces acting on the particle. Therefore, we cannot determine the total force acting on the particle and hence we cannot calculate the work done by this force as the particle moves a distance\(\Delta r \hat i + \Delta 3\hat j\).

Therefore, the correct answer is "Impossible to determine; we know nothing about the other forces".

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Answer:

D.

Explanation:

A compound containing metallic bonds

hope it helps!

The presence of dark lines in the solar spectrum, known as Fraunhofer lines, indicates that certain wavelengths of light are absorbed by elements present in the Sun's outer layer or in the Earth's atmosphere.

These lines are named after the German physicist Joseph von Fraunhofer, who first observed them in the early 19th century. These absorption lines help to identify the Sun's chemical composition and to understand its physical properties.

By studying Fraunhofer lines, scientists can determine which elements are present in the Sun and other stars, since each element has a unique spectral fingerprint.

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The surface is colder but the luminosity is higher than when the star was in the main sequence. Because The star grows. The surface may get colder as a result of spreading the radiation across a broader area. Option A is Correct.

Helium is converted into carbon inside of red giant stars while hydrogen is converted into helium outside of the core. The outward force produced by fusion starts to decline after a star's supply of hydrogen in its core is depleted, leaving only helium, and the star is unable to maintain equilibrium.

Bigger stars experience an inward collapse of their outer layers until the temperature is high enough to fuse helium into carbon. After then, the star grows many times beyond its initial size due to the pressure of fusion, becoming a red giant. Option A is Correct.

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Correct Question:

Red giant stars burn helium into carbon in the core and hydrogen into helium outside it. This produces more luminosity than when the star was on the main sequence, but the surface is cooler. Why is this?

A. The star expands. Spreading the radiation over the larger surface, the surface can be cooler.

B. The peak wavelength of a black body shifts to longer wavelengths when the body get more luminous.

C. The extra energy is used up expanding the star.

Answer:

11 blocks

Explanation:

distance is adding up the numbers while displacement is the difference in starting and ending points

1. The contribution u2q to the electric potential energy of the system is determined by the interaction between the charge 2q and the other charges in the system. It is a measure of the energy required to bring the charge 2q from infinity to its position in the system,

taking into account the electric potential at every point along the way. This contribution can be calculated using the formula U = kqQ/r, where k is the Coulomb constant, q and Q are the charges, and r is the distance between them.

2. The total electric potential energy Utot of the system is the sum of the contributions from all the charges in the system. It can be calculated by adding up the individual potential energies of each charge pair in the system, using the formula U = kqQ/r. Alternatively, it can be calculated using the formula U = qV, where q is the total charge of the system and V is the electric potential at the location of the system. This formula takes into account the energy required to bring all the charges in the system to their positions, relative to an arbitrary reference point.

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Asterisms are smaller, recognizable shapes formed by stars within a constellation or spanning multiple constellations. They can take the form of familiar objects or geometric shapes.

All stars within well-defined regions of the sky are members of constellations. These constellations are a way to organize and divide the celestial sphere into recognizable patterns.

The star in Taurus is designated Alpha Tauri, which means it is considered the brightest star in that particular constellation. Patterns of stars in the night sky are called asterisms.

Asterisms are smaller, recognizable shapes formed by stars within a constellation or spanning multiple constellations. They can take the form of familiar objects or geometric shapes.

While there are 88 official constellations recognized by the International Astronomical Union, there are countless asterisms that astronomers and stargazers observe and appreciate within these constellations.

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All stars within well-defined regions of the sky are members of constellations. The star in Taurus is designated Alpha Tauri. Patterns of stars in the night sky are called asterisms and are part of one or more constellations.

The International Astronomical Union (IAU) recognizes 88 constellations. These constellations are well-defined areas in the sky that contain groups of stars forming recognizable patterns. Some of the most famous constellations include Orion, Ursa Major (the Big Dipper), and Cassiopeia.

Asterisms, on the other hand, are smaller, distinct patterns formed by stars within a constellation or across multiple constellations. These patterns may be easily recognizable and have cultural or historical significance. For example, the Big Dipper is an asterism within the Ursa Major constellation.

In total, there are 15 asterisms that are officially recognized by the IAU. These include the Big Dipper, the Little Dipper, the Northern Cross, and the Summer Triangle.

Constellations and asterisms help astronomers navigate the night sky and locate specific celestial objects. They provide a way to organize and identify stars and other celestial bodies.

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Answer:

skeletal system

Explanation:

hope its the right answer:))

Answer:

top

Explanation:

Answer:

6000kg

Explanation:

Given parameters:

Initial velocity  = 10m/s

Final velocity  = 15m/s

Time = 10s

Force  = 3000N

Unknown:

Mass of the bus = ?

Solution:

Force is the mass multiplied by acceleration.

        Force = mass x acceleration

 Acceleration = \(\frac{final velocity - initial velocity }{time}\)

  Force  = mass x  \(\frac{final velocity - initial velocity }{time}\)

Insert the parameters and solve;

           3000 = mass x \(\frac{15 - 10}{10}\)

            3000 = \(\frac{mass}{2}\)

  Mass  = 6000kg

Answer:

but where is the question ?

Explanation:

hope it works out

Answer:

where the question about?

Explanation:

I think the question is invisible

Answer:

thanks for the points

Explanation:

Answer:

4.81 L

Explanation:

From the question given above, we obtained the following information:

Initial temperature (T₁) = 298 K

Initial Volume (V₁) = 6 L

Final Temperature (T₂) = – 34 °C

Final Volume (V₂) =?

Next, we shall convert – 34 °C to Kelvin temperature. This can be obtained as follow:

T(K) = T(°C) + 273

T(°C) = – 34 °C

T(K) = – 34 + 273

T(K) = 239 K

Thus, –34 °C is equivalent to 239 K

Finally, we shall determine the final volume of the balloon as follow:

Initial temperature (T₁) = 298 K

Initial Volume (V₁) = 6 L

Final Temperature (T₂) = 239 K

Final Volume (V₂) =?

V₁ / T₁ = V₂ / T₂

6 / 298 = V₂ / 239

Cross multiply

298 × V₂ = 6 × 239

298 × V₂ = 1434

Divide both side by 298

V₂ = 1434 / 298

V₂ = 4.81 L

Thus, the volume of the balloon when it was brought outside the store was 4.81 L.

Answer:

c.

is the answer please brainliest

Answer:

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

\(a = \frac{f}{m} \\ \)

f is the force

m is the mass

From the question we have

\(a = \frac{250}{70} = 3.5714 \\ \)

We have the final answer as

Hope this helps you

Variables are placeholders or symbols used to represent values that can change in a mathematical equation or programming context, allowing for dynamic and flexible manipulation of data.

Variables are symbols or placeholders that represent different values or quantities. They are used in mathematical and programming contexts to store and manipulate data.

For example, in an equation like y = 2x + 3, x and y are variables. x can take different values, and y will change accordingly.

In programming, variables can store various types of data, such as numbers, text, or Boolean values.

For instance, in a program, age = 25 assigns the value 25 to the variable age, allowing it to be used and updated throughout the program as needed.

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Fast moving rivers of air, known as jet streams, can reach speeds of 75 to 150 miles per hour (mph).

Jet streams are narrow bands of strong winds that flow in the upper levels of the atmosphere, typically between 25,000 and 35,000 feet above the Earth's surface.

These high-speed air currents are driven by the temperature and pressure gradients in the atmosphere, particularly between warm and cold air masses.

The jet streams flow in a wavy pattern from west to east, influenced by the rotation of the Earth and atmospheric conditions. They can extend thousands of miles in length and a few hundred miles in width.

Jet streams play a crucial role in weather patterns, affecting the movement of storms and the distribution of temperature and precipitation.

Aviation and weather forecasting heavily rely on understanding and monitoring the jet streams. Their high speeds can benefit air travel by reducing flight times for planes flying with the jet stream and increase fuel efficiency.

However, flying against the jet stream can result in longer flight durations and higher fuel consumption.

In summary, jet streams are fast-moving rivers of air with speeds ranging from 75 to 150 mph. They are important atmospheric phenomena that impact weather patterns and have implications for aviation and weather forecasting.

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Newton's second law allows us to find that the correct answer is:

   A) The mass of the baseball never changes so the more force in the pitchers arm, the higher the acceleration of the baseball before it leaves the pitcher's hand.

Newton's second law gives a relationship between force and the product of mass and acceleration of the body

          F = m a

Where F is the force, m the mass and the acceleration of the body.  The bold indicate vectors

The baseball ball is a solid body that has a fixed mass, therefore the pitcher uses different forces in the arm, the acceleration must change proportionally, as the force increases, the acceleration must increase (fastball).

Let's review the different claims

A) true. These statements are in accordance with Newton's second law

B) False. If the force changes any of the other two parameters must change

C) false. Force and acceleration are proportional

D) False. When the ball is in the air it is subjected to the acceleration of gravity

With Newton's second law we find that the correct answer is:

   A) The mass of the baseball never changes so the more force in the pitchers arm, the higher the acceleration of the baseball before it leaves the pitcher's hand.

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Answer:

Please attach the picture

By using a model of Earth that spins on its axis, the student can best demonstrate the concept of Earth's rotation.

This rotation is responsible for the occurrence of day and night, as different parts of the Earth face the Sun at different times during the 24-hour period. The model can also help visualize the Earth's tilt, which plays a crucial role in creating seasons due to variations in sunlight intensity and duration in different regions throughout the year.

Additionally, the spinning model can provide an insight into the Coriolis Effect, which influences the movement of large-scale weather systems and ocean currents, the model can help explain why hurricanes and other weather patterns rotate clockwise in the Southern Hemisphere and counter-clockwise in the Northern Hemisphere. In summary, a spinning model of the Earth can effectively demonstrate essential concepts such as the cause of day and night, the occurrence of seasons, and the influence of Earth's rotation on weather systems and ocean currents. This hands-on learning approach can deepen students' understanding of the complex interactions within our solar system.

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Answer:

60 - 45 = A. 15

Explanation:

Subtracted because the plane mirror at an angle is incidence of 60°, so then in order to find the value it would be 60-45 and not adding it or dividing and multiplying to find the value thus the answer is 15.

60 - 45 = A. 15. Subtracted because the plane mirror at an angle is incidence of 60°, so then in order to find the value it would be 60-45 and not adding it or dividing and multiplying to find the value thus the answer is 15.

A flat or highly polished surface called a plane mirror reflects light or waves to create an image. It is a polished, smooth surface that creates a virtual representation of the actual object.

A plane mirror is a surface on which an image can only be produced by at least two light beams. The intersection of these two beams can occur inside the mirror or appear to occur somewhere behind the mirror.

The image that follows illustrates how an object appears when viewed via a plane mirror.

Therefore, 60 - 45 = A. 15. Subtracted because the plane mirror at an angle is incidence of 60°, so then in order to find the value it would be 60-45 and not adding it or dividing and multiplying to find the value thus the answer is 15.

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Explanation:

A resistor is 'Ohmic' if as voltage across the resistor is increased, a graph of voltage versus current shows a straight line.

A star's path through your sky depends on your latitude and the star's position in relation to Earth's celestial sphere. Latitude plays a significant role in determining which stars and constellations are visible at different times of the year. At higher latitudes, you will see a smaller portion of the sky, while at lower latitudes, you can observe more stars and constellations.

The star's position is determined by two coordinates: right ascension and declination. Right ascension measures the star's eastward distance from the vernal equinox along the celestial equator, while declination measures the star's north or south position relative to the celestial equator. These coordinates help determine the path a star takes across the sky.
As Earth rotates on its axis, stars appear to move in circular paths around the celestial poles. Stars closer to the poles will have smaller circular paths and may never set, becoming circumpolar stars. Stars closer to the celestial equator have larger paths and may rise and set, following a more diagonal path across the sky.

In summary, a star's path through your sky depends on your latitude and the star's position in the celestial sphere, determined by its right ascension and declination. These factors affect the visibility and motion of stars as they appear to travel across the night sky.

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a)The ball's potential energy changes as it moves from the release point to the top of the rebound.

b)The ball's potential energy is at its highest and rests when it is in the top position.

The potential energy is due to the virtue of the position and the height. The unit for the potential energy is the joule.

The potential energy is mainly dependent upon the height of the object.

Potential energy = mgh

The kinetic energy of the body is due to the virtue of motion.

According to the Law of Conservation of Energy, energy can neither be created nor destroyed but can be transferred from one form to another.

The total energy is the sum of all the energies present in the system. The potential energy in a system is due to its position in the system.

A ball dropped onto a trampoline returns to the same height after the rebound.

Hence, the ball's potential energy changes as it moves from the release point to the top of the rebound. When the ball is at the top position the potential energy is maximum and the ball is at rest.

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Answer:

floating is important in swimming because if you are ever in a bad position possibly in the ocean and get tired of swimming you can float.

Explanation:

The rate of motion and direction of an object are measured by a vector known as velocity. Therefore, we need to understand both the magnitude and direction in order to calculate the velocity according to this definition.

Velocity of calculator with respect to ground Ve = 45m/s

Vy = 0

Vx = -45m/s

Ax = 0

Vy = 0, Ay = -10m/s

So, the x component of velocity remains same as Ax = 0

while the Vy increases as A = 0

So, the calculator will experience a half projectile type motion.

A = 0

V = 0

Ay = -10

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Answer:

Quantity of charge = 8.5 Coulombs

Explanation:

Given the following data;

Current = 0.5 A

Time = 17 seconds

To find the charge flowing through the wire;

Mathematically, the quantity of charge passing through a conductor is given by the formula;

Quantity of charge = current * time

Substituting into the formula, we have;

Quantity of charge = 0.5 * 17

Quantity of charge = 8.5 Coulombs

Answer:

Location

Explanation:

Potential energy is the energy stored in an object due to its position. The most common type of potential energy - gravitational potential energy - is the energy stored in an object due to its vertical position relative to the ground or some zero level.

"An object can store energy as the result of its position. For example, the heavy ball of a demolition machine is storing energy when it is held at an elevated position." This stored energy of position is referred to as potential energy. Similarly, a drawn bow is able to store energy as the result of its position.

"Energy is the capacity for doing work. It may exist in potential, kinetic, thermal, electrical, chemical, nuclear, or other forms."

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When the difference is small, that is the starting orbit is just one level above the ending orbit, the wavelength of the photon will have a relatively small value.

Atomic emission is the process of light emission from an atom that occurs when the atom gets excited by either heating, bombarding with electrons, or a discharge of electric current. When an atom is excited, the electrons gain energy and move to a higher energy level or shell. When they return to the lower energy state, they emit energy in the form of electromagnetic radiation or light.

The energy of the emitted photon or light is directly proportional to the difference in the energy levels of the atom before and after the emission process. The relationship is given by:E=hfwhere E is the energy of the emitted photon, h is the Planck's constant, and f is the frequency of the emitted photon. The frequency of the emitted photon can be calculated using the formula:f=c/λwhere c is the speed of light and λ is the wavelength of the photon.

Thus, for an atom to emit radiation of a particular wavelength, the difference in energy levels of the atom must correspond to that wavelength. If the difference is small, the wavelength of the emitted photon will also be small, and if the difference is large, the wavelength of the emitted photon will be large.

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