What is the formula of Acceleration for mass and time​

Chegg considers the radius and the free fall velocity (which is equivalent to the escape velocity) to compute a characteristic dynamical time for the Sun to re-establish mechanical equilibrium.

To compute the characteristic dynamical time, we need to consider the properties of the Sun.

The radius of the Sun is approximately 696,340 kilometers (or 6.9634 × 10^8 meters).

The escape velocity, which is the speed required for an object to escape the gravitational pull of the Sun, can be calculated using the equation:

Escape Velocity = √(2 * Gravitational Constant * Mass of the Sun / Radius of the Sun)

The mass of the Sun is approximately 1.989 × 10^30 kilograms, and the gravitational constant is approximately 6.67430 × 10^(-11) m^3/(kg * s^2).

By substituting these values into the escape velocity equation, we can determine the free fall velocity (or escape velocity) of the Sun.

The characteristic dynamical time can then be computed using the following equation:

Dynamical Time = Radius / Free Fall Velocity

By substituting the values for the radius and the free fall velocity, we can calculate the characteristic dynamical time for the Sun to re-establish mechanical equilibrium.

Chegg considers the radius and the free fall velocity (escape velocity) of the Sun to compute a characteristic dynamical time for the Sun to re-establish mechanical equilibrium. The specific calculation is dependent on the values provided for the radius and the escape velocity.

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Answer:

the change in frequency or wavelength of a wave in relation to an observer who is moving relative to the source of the wave. When the observer is moving towards the source, the waves are compressed and the frequency increases (called a blue shift). Conversely, when the observer is moving away from the source, the waves are stretched and the frequency decreases (called a red shift). This phenomenon can be observed in sound waves, light waves, and other types of waves.

Answer: an increase (or decrease) in the frequency of sound, light, or other waves as the source and observer move toward (or away from) each other

Explanation:

Answer:0.563

Explanation:

The kinetic energy produced in a toy car is equal to 0.563 J.

The energy exhibited by a moving body because of its motion is said to be its kinetic energy. Work should be done which can change the kinetic energy of a moving object.

The kinetic energy of a moving object can be determined from the formula mentioned below:

K.E. = ½mv²     where ‘m’ and ‘v’ is the mass, velocity of the object.

Potential Energy (P.E.)is energy that is stored in an object due to its position and can be expressed as P.E = mgh where h, m, and g are the height, mass, and gravitational acceleration respectively.

Given, the mass of the toy car =, m = 0.500 Kg

The velocity of the toy car, v = 80 m/s

The kinetic energy = (1/2)× 0.500 ×(1.50)²

K.E. = 0.563 J

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Answer:

10 ohm

Explanation:

Since the resistors are arranged in series, their total resistance is their sum.

Hence, Total R = 2+3+5 = 10 ohm

The car speeds remains constant.

Using the following equation for momentum:

Pi=Pf

(c=car and r=rock)
              McVc + MrVr = McV'c + MrV'r

Initially
                         Vc=Vr=Vi
and since rocks are being dropped directly downward, final momentum of the rocks (being dropped one at a time) should be zero because their falling down, out of the railroad car.
So:
Vi( Mc+Mr) = McV'c V'c = [Vi(Mr+Mc)] / Mc

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Answer:

chargeing by induction

Explanation:

this is the answer have a great day

The correct statement regarding potential energy is that "potential energy is the energy that an object has based on its position."

This means that an object has the potential to do work based on its position in relation to other objects or forces. For example, a ball at the top of a hill has potential energy due to its position at the top of the hill, and this potential energy can be converted into kinetic energy as the ball rolls down the hill.

The other statements about potential energy are not true.

Potential energy can be stored and is not immediately converted to kinetic energy.

The potential energy of an object can be determined using the formula PE = mgh, where m is the mass of the object, g is the acceleration due to gravity, and h is the height of the object.

And finally, an object in motion can still have potential energy, such as a pendulum swinging back and forth.

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Answer:

The ratio of the potential difference across a metallic conductor to the current in the conductor is known as.

B. Resistance.

Explanation:

According to ohms law   " the current  passing through a conductor is directly proportional to the potential difference between the ends provided the temperature of the wire remains constant".

What is resistance ?

Resistance is a measure of the opposition to current flow in an electrical circuit

what is a resistor ?

a resistor is a n electric conductor which forms resistance to free flow of electric current, the resistance is measured in Ω

The ratio of the potential difference across the conductor to the current is called resistance

It is defined as the ratio of the potential difference across the conductor to the current. The resistance is measured in Ω.

\(R = \dfrac VI\)

Where,

\(R\) - resistance

\(V\)- voltage (Potential difference)

\(I\) - current

Therefore, the ratio of the potential difference across the conductor to the current is called resistance.

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In 10 moles of carbon, there is approximately 96.5 coulombs of positive electric charge.

To determine the amount of positive electric charge in 10 moles of carbon, we need to calculate the total charge based on the number of moles and the charge per mole.

Given:

Number of moles of carbon (n) = 10 moles

Avogadro's constant (NA) = 6.022 × 10^23 mol^(-1)

Elementary charge (e) = 1.60 × 10^(-19) C

The total positive electric charge (Q) can be calculated using the formula:

Q = n * NA * e

Substituting the given values, we have:

Q = 10 moles * (6.022 × 10^23 mol^(-1)) * (1.60 × 10^(-19) C)

Simplifying the calculation, we find:

Q ≈ 9.65 × 10^4 C

Rounding to one significant figure, we have:

Q ≈ 1 × 10^5 C

Therefore, there is approximately 1 × 10^5 coulombs of positive electric charge in 10 moles of carbon.

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The initial velocity of a car that reached 32 m/s in 3.4 at a rate of 2.6 m/s  is 23.16 m/s.

Velocity is described as the directional speed of a object in motion as an indication of its rate of change in position as observed from a particular frame of reference and as measured by a particular standard of time.

The given parameters include:

final velocity: 32 m/s

time: 3.4 seconds

acceleration = 2.6 m/s

V = u + at

32 = u + 3.4 * 2.6

32 = u + 8.84

32- 8.84 = u

initial velocity = 23.16.

So the initial velocity of the car that travels 32m/s in 3.4 at a rtae of 2.6 m/s is 23.16 m/s.

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Answer:

Sirius

Explanation:

On the HR diagram Sirius is the closet.

c) Sirius has a surface temperature and luminosity closest to Phecda

Surface temperature is the temperature at or near a surface. Luminosity is an absolute measure of radiated electromagnetic power (light), the radiant power emitted by a light-emitting object over time.

As it can be observed from the graph attached that Sirius have a surface temperature of about 10,000 K which can be considered as closest to 9500 K comparatively to other stars and if we see the the y coordinate of Sirius which is the luminosity representing axis , then Sirius have a value of luminosity closer to 63

hence correct answer is c)Sirius

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1. Reducing Carbon Entering: Planting more trees at the location is an effective way to reduce the amount of carbon at this location.

Carbon is an element found in abundance in the Earth's atmosphere and is one of the most abundant elements in the universe. Carbon is a key component of all living organisms and serves as the backbone of life on Earth. Carbon exists in several different forms, including coal, oil, natural gas, and diamonds, and can be found in many other materials, such as plastics, paper, and fabrics.

Trees absorb carbon dioxide from the atmosphere and use it to produce oxygen through photosynthesis. This process helps to reduce the amount of carbon entering the location.
2. Increasing Carbon Exiting: Installing solar panels at the location is an effective way to increase the amount of carbon exiting the location. Solar panels convert solar energy into electricity, releasing carbon dioxide into the atmosphere during the process. This helps to reduce the amount of carbon at the location by releasing it back into the atmosphere.

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Answer:

B

Explanation:

Got it right

Answer:

B. X: Releases energy to the photosphere

Y: Takes longer for photons to move through

Explanation:

Right on ED2021, goodluck!

vf² = vi² + 2.a.d

0 = 26 + 2.(-6.7).d

13.4d = 26

d = 1.94 m

Answer:

225 m//s

Explanation:

It ran 5m/s so 5x45=225

Answer:

225 meters

Explanation:

If it is running 5 meters per seconds, and it ran 45 seconds, you would need to multiple the seconds it ran by the speed per second: 5 • 45

5 • 45 = 225

In a rafter-framed roof, the ridge board is the horizontal member to which the upper ends of the rafters are connected.

In architecture, a ridge is a horizontal beam that connects the upper ends of opposing roof rafters. It spans from the upper corners of the roof, where the two sloping sides meet, to the lower roof beams where they meet the walls.

The ridge board serves as the centerpiece and primary support of a rafter-framed roof. It serves as a beam that supports the weight of the rafters, as well as any additional load on the roof structure.

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God created all things in the beginning of time

Explanation:

He said the things he wanted to make an they came into existence.

Im christian so if u dont like the answer or get mad i'm sorry i couldnt help you

The angle between the transmission axes of the two Polaroid sheets is approximately 59.5 degrees. This calculation is based on Malus's law and the given intensity relationship between the light emerging from the second sheet and the light incident on the first sheet.

When unpolarized light passes through a Polaroid sheet, it becomes polarized, meaning its electric field vectors vibrate in a particular direction.

The intensity of light passing through a Polaroid sheet is given by Malus's law:

I = I0 * cos^2(θ)

Where I is the transmitted intensity, I0 is the incident intensity, and θ is the angle between the transmission axis of the Polaroid sheet and the polarization direction of the incident light.

In this problem, we have two Polaroid sheets. Let's denote the angle between the transmission axis of the first sheet and the polarization direction of the incident light as θ1, and the angle between the transmission axis of the second sheet and the polarization direction of the light transmitted through the first sheet as θ2.

Given that the intensity of the light emerging from the second sheet is 41.1% of the intensity of the light incident on the first sheet, we can write the equation:

I2 = 0.411 * I1

Applying Malus's law to each sheet, we have:

I1 = I0 * cos^2(θ1)

I2 = I1 * cos^2(θ2)

Substituting the value of I1 into the second equation, we get:

I2 = (I0 * cos^2(θ1)) * cos^2(θ2)

0.411 * I1 = (I0 * cos^2(θ1)) * cos^2(θ2)

Dividing both sides of the equation by I0 * cos^2(θ1), we have:

0.411 = cos^2(θ2)

Taking the square root of both sides, we get:

√0.411 = cos(θ2)

Solving for θ2, we find:

θ2 ≈ arccos(√0.411)

θ2 ≈ 59.5 degrees

the angle between the transmission axes of the two Polaroid sheets is approximately 59.5 degrees.

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The rocket engine that fires against the direction a spacecraft is headed so the spacecraft slows down is called Retro engine.

Spacecraft are the space automobiles that might be capable of flying out of doors of the Earth’s ecosystem in the area. They offer us a method of transportation from the Earth to the area and objects in it. There may be numerous spacecraft that are familiar to most of people e.g. Apollo 11 which took Neil Armstrong and his group to the Moon.

Crewed Spacecraft – Crewed spacecraft are the ones that carry people to the area. There have been several crewed spacecraft to the area consisting of Vostok 1 – the first crewed spacecraft in records dispatched by way of the United States of America.

Earth-Orbit Satellites – all of the satellites, which orbit across the Earth, fall in this class. The maximum tremendous satellite in orbit on the Earth is Hubble Telescope.

Space Probe – these are unmanned spacecraft that might be fitted with medical instruments for exploring objects in space e.g. planets, Moon, and solar.

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The equations mentioned by Emily in the valuation analysis for Aspeon are as follows:

1) Equation (1): This equation represents the value of equity (S) and calculates it based on the EBIT (earnings before interest and taxes), the tax shield provided by debt (D), and the required return on debt (kd) and equity (ks). It implies that the value of equity is equal to the adjusted EBIT after deducting the tax shield from debt.

2) Equation (2): This equation calculates the total enterprise value (V) by adding the value of equity (S) and debt (D). It represents the total worth of the company, considering both equity and debt.

3) Equation (3): This equation calculates the price per share (P) by dividing the total enterprise value (V) minus the initial debt (D0) by the number of shares (n0). It represents the price per share based on the valuation of the company.

4) Equation (4): This equation calculates the new number of shares (n1) by subtracting the dividend (D) from the initial number of shares (n0) divided by the price per share (P). It represents the adjusted number of shares after the payment of dividends.

5) Equation (5): This equation calculates the levered value (VL) by adding the unlevered value (VU) with the tax shield value (TD). It represents the value of the company after considering the tax advantages of debt.

These equations provide a framework for valuation analysis, considering factors such as earnings, taxes, debt, and equity. They help assess the value and financial implications of Aspeon's growth prospects.

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(a) The maximum load that may be applied to the specimen without plastic deformation is 91,000 N.

To calculate the maximum load, we can use the formula:

maximum load = stress × cross-sectional area

where stress is given as 280 MPa and the cross-sectional area is given as 325 mm^2. However, we need to convert the units to the SI unit of Pascal (Pa) to get the answer in Newtons (N).

1 MPa = 1 × 10^6 Pa

325 mm^2 = 325 × 10^-6 m^2

Substituting these values, we get:

maximum load = 280 × 10^6 Pa × 325 × 10^-6 m^2

maximum load = 91,000 N

Therefore, the maximum load that may be applied to the specimen without plastic deformation is 91,000 N.

(b) The maximum length to which the specimen may be stretched without causing plastic deformation is 115.28 mm.

To calculate the maximum length to which the specimen may be stretched without causing plastic deformation, we can use the formula:

maximum elongation = maximum stress / modulus of elasticity

where the maximum stress is given as 280 MPa and the modulus of elasticity is given as 115 GPa. However, we need to convert the units to the SI unit of Pa to get the answer in meters (m).

1 GPa = 1 × 10^9 Pa

Substituting these values, we get:

maximum elongation = (280 × 10^6 Pa) / (115 × 10^9 Pa)

maximum elongation = 0.00243

The maximum elongation is given as a ratio of the original length, so we can calculate the maximum length as:

maximum length = (1 + maximum elongation) × original length

maximum length = (1 + 0.00243) × 115 mm

maximum length = 115.28 mm

Therefore, the maximum length to which the specimen may be stretched without causing plastic deformation is 115.28 mm.

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Answer:

a graduated cylinder

Explanation:

Graduated cylinders are generally more accurate and precise than laboratory flasks and beakers, but they should not be used to perform volumetric analysis; volumetric glassware, such as a volumetric flask or volumetric pipette, should be used, as it is even more accurate and precise.

I hope it had helped you

Answer:

Graduated Cylinder

Explanation:

Graduated cylinders are generally more accurate and precise than laboratory flasks and beakers, but they should not be used to perform volumetric analysis; volumetric glassware, such as a volumetric flask or volumetric pipette, should be used, as it is even more accurate and precise.

Hopefully this helped!

-✩sandwichchan✩

Remember that the specific details of each earthquake will vary based on factors such as magnitude, location, and geology.

Regarding the locations indicated by the yellow dots, there are a few things that are generally true about earthquakes at shallow depths.
1. Shallow-depth earthquakes occur closer to the Earth's surface, typically within the top 70 kilometers (43 miles).
2. These earthquakes tend to be more destructive compared to deeper ones because their energy is released closer to the surface.
3. Shallow-depth earthquakes can cause significant damage to buildings, infrastructure, and the environment.
4. The shaking from shallow-depth earthquakes is often felt more strongly by people living in nearby areas.
5. These earthquakes can trigger landslides and tsunamis if they occur under or near bodies of water.
6. Seismic waves from shallow-depth earthquakes travel shorter distances, which means they affect smaller areas compared to deeper earthquakes.
7. Monitoring networks and seismographs help scientists track and analyze shallow-depth earthquakes to understand their characteristics and potential hazards.
Remember that the specific details of each earthquake will vary based on factors such as magnitude, location, and geology.

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Answer:

D

Explanation:

self-explanatory:

higher temperature increases rate of dissolving

smaller particles means a larger surface area,therefore increasing rate of dissolving as more of the solute is in contact with the solvent at one time.

Dry adiabatic rates refer to the rate at which unsaturated air parcels rise and cool as they expand. These rates are due to the fact that unsaturated air parcels expand more rapidly than saturated air parcels. As an unsaturated air parcel rises, it expands and cools at a rate of approximately 10°C per 1000 meters. This rate is constant and is known as the dry adiabatic lapse rate.

The reason for this rate is that unsaturated air parcels do not contain any moisture that can release latent heat as they rise. This means that the cooling is purely due to the expansion of the air parcel. In contrast, saturated air parcels release latent heat as they rise, which slows down the cooling process.

As a result, the rate at which saturated air parcels cool is known as the moist adiabatic lapse rate, which is approximately 6°C per 1000 meters. In summary, dry adiabatic rates are due to the fact that unsaturated air parcels expand more rapidly than saturated air parcels, leading to a constant cooling rate of 10°C per 1000 meters.

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The wavelength released in transition energy is 683.68 nm.

We need to know about transition energy to solve this problem. Electrons in a hydrogen atom can move to another level of energy. It is also called a transition. In this process, electrons will absorb or release their energy to move. The transition energy can be determined as

ΔE = E2 - E1

where ΔE is transition energy, E2 is the final state of energy and E1 is the initial state of energy.

The state energy of a hydrogen atom can be calculated by

E = -(13.6) / n² eV

E = h.c / λ

where n is the number of energy states, h is Planck constant (4.136 x 10¯¹⁵ eV/Hz), c is speed of light (3 x 10⁸ m/s) and λ is wavelength.

Rydberg has been simplified how much wavelength released or absorbed by this equation

1/λ = R (1/n1 - 1/n2)

where R is Rydberg constant (1.097 × 10⁷ /m)

From the question above, we know that

n1 = 3

n2 = 5

By substituting the following parameter, we get

1/λ = R (1/n1 - 1/n2)

1/λ = 1.097 x 10⁷(1/3 - 1/5)

1/λ = 146266.67

λ = 6.8368 x 10¯⁷ m

λ = 683.68 nm

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The image here is not found here but star formation is characterized by clouds of dust where stars are born.

Star formation is a physical phenomenon where molecular clouds in space need to collapse to generate stars.

Stellar evolution is a process that initiates when a star is formed and ends when it dies (formation of a red giant).

Stars can be generated inside clouds of dust which are dispersed in different types of galaxies in the universe.

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Dalton's atomic theory was proposed by John Dalton in the early 19th century and it formed the foundation of modern atomic theory. The theory states that all matter is made up of atoms, which are indivisible and indestructible. However, over time, scientists have discovered that some parts of Dalton's atomic theory are incorrect.

One of the parts of Dalton's atomic theory that has been proven to be incorrect is the idea that atoms are indivisible. It is now known that atoms are made up of even smaller particles, such as protons, neutrons, and electrons. This discovery was made through the study of nuclear physics and the development of the atomic model.

Another part of Dalton's atomic theory that has been disproven is the idea that all atoms of a given element are identical. It is now known that atoms of the same element can have different numbers of neutrons and are known as isotopes. This discovery was made through the study of radioactivity and the development of mass spectrometry.

Lastly, Dalton's atomic theory stated that atoms of different elements are fundamentally different, and cannot be converted into one another. However, this idea is incorrect as it is now known that atoms can be transformed into other elements through nuclear reactions, such as fusion and fission.

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