Molar mass of one mole of Iron, please explain how you got your answer...

Answer:

7.656 m/s

Explanation:

El sonido viaja a cierta velocidad y tiene una frecuencia y longitud de onda. La relación entre la velocidad del sonido (V), su frecuencia (f) y la longitud de onda (λ) es la misma que para todas las ondas, está dada por la ecuación:

V = fλ

pero f = 1/T

∴ V = λ/T

donde T es el período

Dado que:

período (T) es el tiempo necesario para subir y bajar = 3.2 s

La distancia entre dos crestas es la longitud de onda (λ) = 24.5 m

V =  λ/T = 24.5 / 3.2 = 7.656 m/s

V = 7.656 m/s

The magnetic field of Uranus and Neptune is weaker than that of Jupiter and Saturn but stronger than Earth's. Thus, the correct option is the third option: moderate strength.

Uranus and Neptune, two outer planets in our Solar System, have magnetic fields that are much weaker than those of Jupiter and Saturn, but still stronger than Earth's. The magnetic field of Uranus is tilted at an angle of 59 degrees to its axis of rotation, while Neptune's magnetic field is tilted at an angle of 47 degrees. Uranus has a very irregular magnetic field that is shifted off-center and is believed to be lopsided, with its magnetic north pole nearer to the equator than to the geographic north pole. Neptune's magnetic field is also somewhat skewed, but not to the same extent as Uranus'.

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The net horizontal force on the airplane as it levels off is zero.

The net horizontal force on the airplane as it levels off can be calculated using Newton's second law, which states that the net force on an object is equal to its mass times its acceleration. Since the airplane is maintaining a constant horizontal speed, we know that its horizontal acceleration is zero. Therefore, the net horizontal force on the airplane must also be zero. The fact that the airplane is reducing its vertical speed to zero in 11 seconds does not provide any information about the net horizontal force on the airplane.

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The Crab Pulsar, also known as PSR B0531+21, is a highly magnetized, rapidly rotating neutron star located in the Crab Nebula, the remnant of a supernova explosion that occurred in the year 1054.

A pulsar is a type of neutron star that emits beams of electromagnetic radiation from its magnetic poles. These beams are not aligned with the rotational axis of the pulsar but instead sweep across space as the star rotates. When one of these beams of radiation points towards the Earth, we observe a pulse of light.

In the case of the Crab Pulsar, it rotates incredibly rapidly, with a period of around 33 milliseconds (approximately 30 times per second). The fast rotation, combined with the strong magnetic field of the pulsar, results in the emission of beams of radiation that sweep past the Earth at regular intervals, causing the observed pulsing effect

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Explanation:

The pascal (symbol: Pa) is the SI derived unit of pressure used to quantify internal pressure, stress, Young's modulus and ultimate tensile strength. It is defined as one newton per square metre. It is named after the French polymath Blaise Pascal

Answer:

a low protein diet helps you lose weight because lack of protein can make you lose muscle mass

Explanation:

It cuts your strength it makes it harder to keep your balance and slows your metabolism and later you get tired easily it leads to muscle wasting overtime and sheds your fat

When two things interact, there are two forces at play: action and reaction. For instance, when someone pushes a box, the box delivers the equal amount of force in the opposite direction to the person's hand.

A force that is applied to an object is known as an action force. An action force with an opposite direction has an effect called a reaction force. These two forces also referred to as action and reaction forces are covered by Newton's third law of motion.

Action and response are the two forces at work when two objects interact. For instance, when someone pushes a box, the box applies the same force to the person's hand in the opposite direction.

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The distribution of electrical charges results in electrostatic pressure.

In the field of physics known as electrostatics, static electric charges are studied (static electricity). Some materials, like amber, have been known to capture light particles after rubbing since classical times. The word "electricity" thus derives from the Greek word for amber. Electric charges exert forces on one another, which results in electrostatic phenomena. Coulomb's law describes these forces.

The tension that builds up inside the sphere due to the charges in the same sphere repelling one another is known as electrostatic pressure. Like how a rubber band would be stretched from all points outward, stress would form in it. By maintaining electrostatic pressure and diffusion on the potassium cation, the resting membrane potential is kept constant.

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What does your model look like and the one it's being compared to?

Answer:

you should prolly put the model

Explanation:

The chi-square test assumes that the variables being analyzed are measured at a nominal or ordinal level of measurement.

In statistics, the level of measurement refers to the nature and properties of the data being collected. There are four levels of measurement: nominal, ordinal, interval, and ratio. Nominal and ordinal levels are considered categorical, while interval and ratio levels are considered numerical. The chi-square test is specifically designed for analyzing categorical data, where the observations can be classified into distinct categories or groups. It is used to determine whether there is a significant association or relationship between two categorical variables.

The test calculates the difference between the observed frequencies and the expected frequencies under the assumption of independence between the variables. It compares the observed and expected frequencies using a chi-square statistic and determines the p-value to assess the statistical significance of the association. Therefore, the chi-square test assumes that the variables being analyzed are measured at a nominal or ordinal level because it deals with categorical data and evaluates the relationship between different categories or groups.

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The distance of the skid at a speed of 112.5 km/h is determined as 106.1 m.

The distance traveled by the car is calculated by applying the following method.

v² = u² + 2as

where;

v = 45 km/h = 12.5 m/s

a = v²/2s

a = ( 12.5²) / ( 2 x 17)

a = 4.6 m/s²

The distance of the skid at a speed of 112.5 km/h is calculated as follows;

112.5 km/h = 31.25 m/s

s = (31.25²) / (2 x 4.6)

s = 106.1 m

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Answer: True

Explanation:

A scalar quantity is those quantities that only have magnitude and no direction. Therefore the value doesn't change with direction.

Answer:

B. I looked it up I hope it's right

Explanation:

i hope this helps.

Answer:

its obviously C

Explanation:

i smart like dat

In a system where no work is done, the heat energy comes from the surroundings or the environment, since it is the only source of energy available to the system.

In a system where volume remains constant, the energy transfer to and from the system occurs solely in the form of heat energy. Heat energy is a form of energy that moves between two substances with different temperatures.

It flows from an area of high temperature to an area of low temperature until thermal equilibrium is reached, meaning that the temperatures of both substances become equal.

Therefore, in a system where no work is done, the heat energy comes from the surroundings or the environment, since it is the only source of energy available to the system.
The first law of thermodynamics, also known as the law of conservation of energy, states that energy cannot be created or destroyed, but it can be transferred or converted from one form to another. In a system with constant volume, there is no change in volume, so no work is done by the system.

Therefore, any energy transfer that occurs must be in the form of heat energy, which is the only other form of energy that can be transferred.
Heat energy can be transferred by conduction, convection, or radiation. Conduction is the transfer of heat energy through direct contact between two substances, such as a pot on a stove.

Convection is the transfer of heat energy through the movement of fluids, such as the circulation of hot water in a radiator.

Radiation is the transfer of heat energy through electromagnetic waves, such as the heat energy that is received from the sun.
In conclusion, if there is no work being done on a system and the volume remains constant, the heat energy is coming from the surroundings or the environment. Heat energy is the only form of energy that can be transferred to or from the system in this case.

The energy transfer can occur through conduction, convection, or radiation, depending on the specific circumstances of the system.

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The angle of refraction (θr) when entering into the salt crystal with refractive index n₂ = 1.54 is 27.32°. Hence, option D is correct.

When light rays enter from a rarer medium to a denser medium, the speed of light decreases and this process is known as the refraction of light.

From the given,

When light rays enter from air to salt crystal, the speed of light decreases.

the refractive index of air (n₁) = 1

the refractive index of salt crystal (n₂) = 2.42

the angle of incidence (θi) = 45°

the angle of refraction (θr) =?

From Snell's law:

n₁ (sin θi) = n₂(sin θr)

1 × (sin(45°)) = 1.54 (sin θr)

0.7071 = 1.54 (sin θr)

θr = sin⁻¹(0.7071 / 1.54)

   = sin⁻¹ (0.4591)

  = 27.32°

The angle of refraction when a light ray enters into the salt crystal is 27.3°. Hence the ideal solution is option D.

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According to behaviorism, also known as behavioral psychology or conditioning, that is a theory of learning, all behaviors are learned through interaction with the environment, and conditioning.

The concept of conditioning from behavioral psychology states that training or conditioning can alter how an individual or an animal reacts to a stimulus, event, or item. Operant Conditioning was developed by Skinner using the most common example of this, classical conditioning (see below).

Social cognition theory is widely criticized as not being all-encompassing. This implies that the theory's numerous parts might not be connected. For instance, the social-cognitive approach asserts that observant learning or self-efficacy have not yet been linked by researchers.

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A torque of 3471.9 N·m is needed to produce an angular acceleration of 100 rpm/s in a flywheel with a diameter of 1.72 m and a mass of 902 kg.

First, let's convert the angular acceleration from revolutions per minute per second (rpm/s) to radians per second per second (rad/s²):

100 rpm/s = 100 × 2π/60 rad/s² ≈ 10.47 rad/s²

The moment of inertia of a flywheel can be calculated using the formula:

I = (1/2)mr²

where

m is the mass of the flywheel and

r is the radius (half of the diameter).

Thus, we have:

r = 1.72/2 = 0.86 m

m = 902 kg

I = (1/2) × 902 kg × (0.86 m)² ≈ 331.9 kg·m²

The torque (T) required to produce the desired angular acceleration (α) can be found using the formula:

T = I × α

T = 331.9 kg·m² × 10.47 rad/s² ≈ 3471.9 N·m

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The movement of electrons along a conductor is called an electric current.

When there is a flow of charges or electrons in a particular direction along a conductor, an electric current is said to exist. An electric current is a movement of free electrons through a conductor.

The flow of electrons is driven by a potential difference or voltage between two points, which causes the electrons to move from the point of higher potential to the point of lower potential.

greater the voltage, the greater the current will be. The unit of electric current is the ampere (A).

In conclusion, the movement of electrons along a conductor is called an electric current. The main answer is that it is driven by a potential difference or voltage between two points, which causes the electrons to move from the point of higher potential to the point of lower potential. The unit of electric current is the ampere (A).

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The work done on a body when it is lifted through a height h appears in the form of its potential energy. Therefore, option (b) is the correct answer.

What is Geothermal Energy?

Geothermal energy is a type of renewable energy that is derived from the heat generated deep beneath the Earth's surface. It is produced by harnessing the naturally occurring heat from the Earth's core, which can be used to generate electricity or heat buildings directly. This energy can be accessed by drilling deep wells into the Earth's crust and tapping into the hot water and steam that is naturally present in underground reservoirs.

When a body is lifted through a height h, the work done on it appears in the form of potential energy. This is because the energy is stored in the body due to its position or configuration, rather than its motion.

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Answer:

240 s

Explanation:

distance = 84 cm

speed = 3.5 mm/s (0.35cm/s)

but speed = distance/time

hence the shortest time taken = distance/speed

= 84/0.35 = 240s

Stars form from molecular clouds through a process known as stellar formation.

These clouds, characterized by low temperatures and high densities, provide the ideal conditions for atoms to combine and form molecules. With a mass range spanning from a few solar masses to millions of solar masses, molecular clouds serve as the birthplaces of new stars. The Pleiades cluster serves as a notable example of stars that have recently formed within such a stellar nursery.

The formation of stars from molecular clouds involves several key steps. Firstly, gravitational forces acting on regions of higher density within the cloud cause them to collapse under their own gravity. As the cloud collapses, it begins to fragment into smaller, denser clumps called protostellar cores. These cores continue to collapse, and their central regions become increasingly dense and hot. At this stage, they are known as protostars.

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If an object has a balanced force on it, there is a possibility that the object may be in a position i.e. there is no change in speed and direction of the body.

If the forces acting on an object is balanced, it means that the net force acting on the body is zero.

According to Newton's law of motion, an object will continue in a state of motion in a straight line unless acted upon by an external force.

This external force might be a balanced or unbalanced force. Hence if an object has a balanced force on it, there is a possibility that the object may be in a position i.e. there is no change in speed and direction of the body.

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Answer: 10

Explanation:

An optical device is an instrument that uses light for a purpose. The device that can focus light to a point through reflection is mirror.

The reflection is the phenomenon of a light ray going back to the same medium after striking a surface.

The mirror is a one sided polished surface which reflects all the light falling on it. The reflected light after striking the mirror meets at a point forming the image of an object place in front of mirror. A mirror is an optical device that uses reflection phenomenon to focus light.

Thus, the device that can focus light to a point through reflection is mirror.

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The production department's exceptional performance at Independence Electronics signifies its status as a key aspect of the company's operations.

Independence Electronics, a renowned manufacturer of smartphone components, places great emphasis on its production department. The department's remarkable performance serves as a testament to its pivotal role within the company.

By consistently delivering high-quality components, the production department contributes significantly to the overall success of Independence Electronics. The exceptional performance is indicative of the department's efficiency, expertise, and ability to meet customer demands.

Moreover, it underscores the company's commitment to producing world-class components used in smartphones. With a focus on maintaining quality standards and meeting production targets, Independence Electronics can maintain its reputation as a leading producer in the industry.

The exceptional performance of the production department reinforces its significance as a critical component of the company's operations, driving growth and success in the competitive smartphone market.

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Answer:

her displacement s=337.5m

Explanation:

check out the above attachment ☝️

Displacement after 15.0 seconds s= 337.5 m

The rate of change of velocity is called acceleration.

Acceleration. speed is the charge of the exchange of displacement. Acceleration is the charge of the exchange of speed. velocity is a vector quantity because it consists of each significance and direction. Acceleration is also a vector quantity as it's far just the fee of alternate of pace.

Acceleration of 3.0 m/s²

Time= 15.0 seconds

S= ut + 1/2 at²

S = 0+0.5*3*15*15

 =337.5 m

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Answer:

The answer is "\(0.13562748\)"

Explanation:

Please find the complete question in the attached file.

Using formula:

\(\bold{U_s=\frac{v^2}{rg}}\)

Given:

\(r=1.60 \times 10^2 \ m\\\\g=9.8\\\\v= 52.5\ \frac{km}{hr}= 14.583\ \frac{m}{s}\)

put the value into the above-given formula:

\(U_s= \frac{14.583^2}{160 \times 9.8}\)

    \(= \frac{212.663889}{1568}\\\\=0.13562748\)