Which unit abbreviation is a measurement of force?
A. m/s
B. m/s²
C. N
D. N/s

Using the Hertzsprung-Russell diagram the conditions that describe each star are :

    Description                                                            Stars

Hertzsprung-Russell diagram is scatterplot diagram that shows the various relationships between the intrinsic brightness of the stars plotted against their spectral types.

hence :

It is fusing hydrogen at its core describes Vega

It has lost its outer shell and retained only a hot core that is slowly losing its  brightness describes Procyon B  while

Its temperature has decreased, but it is shining brighter than before describes Polaris

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Answer:

It is fusing hydrogen at its core-Vega

It has lost its outer shell and retained only a hot core that is slowly losing its brightness-Procyon B

Its temperature has decreased, but it is shining brighter than before-Polaris

Explanation:

this is the correct answer for edmentum only

The answer to this is B, C, and D. hope this helped

Answer:

C

Explanation:

Without thinking, the answer is C.

The problem is with D. Of course it is going to depend on the transparency. If the material is a rock, then the light won't go through, and n >>>1.  I don't think you are intended to think that way, but I sure wish D wasn't there. I'd answer C, but be prepared to see it come out as D.

Answer:

it and i quote you "is less than in free space

Explanation:

i cant explain

Answer:

1. Pioneer

2. Primary

Explanation:

Pioneer Species are the first organisms to colonize barren environments.

Primary Succession is the development of an ecosystem of a barren environments!

I hope this helped! :)

Answer:

The first answer is Pioneer and I think the second is Primary

Explanation:

The main advantage of the scientific method is that it is a systematic and objective way to acquire knowledge. The scientific method is a process for acquiring knowledge that has been used to great success in understanding the physical world. Astrology, on the other hand, is based on subjective interpretations of the positions of the stars and planets.

The scientific method is a process for acquiring knowledge that has been used to great success in understanding the physical world. It is based on the following steps:

1. **Observation:** The scientist observes a phenomenon and asks questions about it.

2. **Hypothesis:** The scientist proposes a hypothesis, or a possible explanation for the phenomenon.

3. **Experimentation:** The scientist designs experiments to test the hypothesis.

4. **Data analysis:** The scientist collects data from the experiments and analyzes it.

5. **Conclusion:** The scientist draws a conclusion about the hypothesis based on the data analysis.

The scientific method is an iterative process, meaning that the scientist may go back and forth between the different steps as needed.

Astrology, on the other hand, is a system of divination that attempts to predict future events by interpreting the positions of the stars and planets. Astrology is not based on the scientific method, and there is no evidence that it is a reliable way to predict the future.

The main advantage of the scientific method is that it is a systematic and objective way to acquire knowledge. The steps of the scientific method are designed to minimize bias and to ensure that the results of the experiments are repeatable. This makes the scientific method a reliable way to learn about the physical world.

Astrology, on the other hand, is based on subjective interpretations of the positions of the stars and planets. There is no scientific evidence to support the claims of astrology, and the results of astrological predictions are not repeatable.

In conclusion, the scientific method is a more reliable way to understand the physical world than astrology. The scientific method is based on a systematic and objective approach to acquiring knowledge, while astrology is based on subjective interpretations of the positions of the stars and planets.

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Objects accelerate at ~9.8 Meters per second per second (9.8 Meters peer sec^2. (or ~32 feet per sec^2 for you non metric guys) As they gain speed they will reach a maximum velocity limited by atmospheric resistance, when the resistance vector equals the gravity vector and all acceleration will cease. In a vacuum the object will continue to accelerate.

Considering the Gay-Lussac's law, the gas exerts at a pressure of 3.3 atmospheres at a temperature of 275 K.

Gay-Lussac's law states that the pressure of a gas is directly proportional to its temperature when the volume is constant. This is because as the temperature increases, the gas molecules move faster and therefore the number of collisions against the walls increases, that is, the pressure increases.

Mathematically, Gay-Lussac's law states that the ratio between pressure and temperature always has the same value:

P÷T= k

where:

Being 1 an initial state and 2 a final state, it is fulfilled:

P₁÷T₁= P₂÷T₂

In this case, you know:

Replacing in Gay-Lussac's law:

3.54 atm ÷295 K= P₂ ÷275 K

Solving:

(3.54 atm ÷295 K)× 275 K= P₂

3.3 atm= P₂

The final pressure is 3.3 atm.

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Answer: 120 volts

Explanation:

Adjusting the thermostat to reduce the air conditioner usage to five hours a day would save $7.50 daily.

The cost to run the air conditioner for nine hours a day is $13.50. To find the cost per hour, we can divide the total cost by the number of hours: \(\frac{13.50}{9} = $1.50 per hour\).

If the air conditioner is only running for five hours a day, the daily cost would be 5 hours × $1.50 per hour = $7.50.

By adjusting the thermostat to reduce the air conditioner usage from nine hours to five hours, there would be a daily saving of $7.50. This reduction in operating time leads to decreased energy consumption, resulting in cost savings. It's important to note that these calculations assume a consistent electricity rate and do not consider other factors such as seasonal variations, maintenance costs, or the specific energy efficiency of the air conditioner.

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Anything that has mass and takes up volume or space is considered to be matter. Everything around you, including solids, liquids, & gases, is made up of this.

It is the most fundamental characteristic of matter and one of the basic physical quantities. The amount of material in a body is measured by its mass. Kilogram is the SI-defined mass unit (kg). It should be noted that a body's mass never changes.

Although weight is typically expressed in kilograms, it should actually be evaluated in newtons, which are the units for force. Mass is determined in kilograms. A measure of an object's inertia, or propensity to resist altering its motion state is its mass.

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Answer:

how can international relations advance our country's politics?​

Explanation:

The correct answers are a, d, f, g, and h. The net work done on particle 1 by the field is zero because the electric field is uniform, so the electric force acting on particle 1 is constant.

Coulomb force is an electrostatic force of attraction or repulsion between two particles that have an electric charge. It is proportional to the product of the charges and inversely proportional to the square of the distance between them.

The Coulomb force exerted on both particles by the source of the E-field increases as they move from start to finish, but the electrical potential energy of particle 2 does not change from start to finish. The E-field at point A when particle 1 is at point A has less magnitude than the E-field at point C when particle 2 is at point C because the magnitude of the electric field decreases with distance from the source. Both particles are at rest when they reach points A and C respectively, and both particles move through the same potential difference from start to finish. Lastly, the Coulomb force exerted on particle 2 by the source of the E-field is larger in magnitude than the Coulomb force exerted on particle 1 by the source of the E-field since particle 2 is closer to the source of the electric field.

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Isaac Newton used a prism to disperse a beam of sunlight into the colors of the rainbow; he then used a second prism to recombine the colors back into white light.

In 1666, Isaac Newton conducted a series of experiments with light using a prism. He found that a beam of sunlight could be separated into its component colors by passing through a prism, a process known as dispersion.

The colors of the rainbow, in order from longest to shortest wavelength, are red, orange, yellow, green, blue, indigo, and violet. Newton named this sequence of colors the spectrum.

Newton also discovered that the colors could be recombined into white light by passing the spectrum through a second prism, a process known as recombination. This experiment demonstrated that white light is actually composed of all the colors in the visible spectrum.

Newton's experiments with light and prisms laid the foundation for the field of optics and contributed to the development of modern theories of light and color. His work showed that white light is not a fundamental entity but is instead composed of different wavelengths of light that can be separated and recombined.

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Answer:

A is a solid. C is a gas. In solid an liquid the particals are touching. In C, the particals have less affect on each other because they are so far apart.

Answer:

Explanation:

The formula for KE is

\(KE=\frac{1}{2}mv^2\) which makes solving our problem for velocity super easy. We will rewrite the formula in terms of v to get:

\(v=\sqrt{\frac{2KE}{m} }\) and filling in:

\(v=\sqrt{\frac{2(50)}{25} }\) so

v = 2 m/s to the correct number of sig fig's

Answer:

C. 100 NEWTONS

Explanation:

just my brain being ly = brainly is the name so my brian is being ly

The weight of the stone is 10N.

To find the weight of the stone, we need to know about the gravitational force on any object due to earth.

When an object is near the earth surface, its weight is mass × gravitational acceleration (g).

So, the weight of the stone= 1kg × 10 m/s²

                            = 10 N

Thus, we can conclude that the weight of the stone 100 m above a gorge is 10N.

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A colored light ray enters the air after passing through water (n = 1.33). The relative change in the ray's speed, frequency, and wavelength once it enters air is accurately described by the fact that both its speed and wavelength increase. Here option C is the correct answer.

When a light ray passes from one medium to another, such as from water to air, its speed, frequency, and wavelength change. The extent of this change depends on the refractive indices of the two media.

In this case, the refractive index of water is 1.33 and that of air is 1.00. When the monochromatic light ray enters air from water, its speed changes because the speed of light in air is greater than its speed in water. Since the speed of light in a medium is inversely proportional to its refractive index, the light ray's speed increases as it enters air. Therefore, option C, which says that its speed and wavelength both increase and its frequency decreases, is the correct answer.

The frequency of the light wave, which is the number of oscillations per second, remains the same because the frequency of the light wave is determined by the source that produced it and is independent of the medium through which it travels.

The wavelength of the light wave changes because the speed of light is different in the two media. Since the frequency of the wave is constant, the wavelength must change to ensure that the speed of the wave matches the speed of the medium through which it is traveling.

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Complete question:

A monochromatic light ray that has been traveling through water (n = 1.33) enters the air. After the ray enters the air, which of the following correctly describes the relative change in the speed and frequency? and wavelength of the ray?

A - its speed and wavelength both decrease; its frequency increases.

B - its speed and wavelength both decrease; its frequency stays the same.

C - its speed and wavelength both increase; its frequency decreases.

D - its speed stays the same, its wavelength increases, and its frequency decreases. its speed and wavelength both increase; its frequency stays the same.

The amount of force is referred to as the magnitude of a force. Hence, option B is correct.

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Answer:

MKS stands for Meter, Kilogram and second. In this system of unit mass is given in Kilogram, length in meter and time in second. ... CGS system stands for Centimeter- Gram- Second system. In CGS system, length is measured in centimeters mass is measured in grams and time is in seconds.

The final temperature of the water and copper is 13.2°C, which is not one of the given options. Therefore, the correct answer is none of the above.

The final temperature of the water and copper can be calculated using the formula Q = mc∆T,

where Q is the heat transfer, m is the mass, c is the specific heat, and ∆T is the change in temperature. The heat lost by the copper will be equal to the heat gained by the water, so we can set the two equations equal to each other:

mc∆T(copper) = mc∆T(water)

(100g)(0.389 J/g°C)(100.0°C - T) = (250.0g)(4.184 J/g°C)(T - 10.0°C)

Solving for T, we get:
=>38.9(100 - T) = 1046(T - 10)

=>3890 - 38.9T = 1046T - 10460

=> 1086.9T = 14350

=> T = 13.2°C

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The critical angle for light traveling from the liquid back into the air is 42.0°.

The critical angle is the angle of incidence in the first medium (air) at which all of the light is refracted into the second medium (liquid).

The formula for the critical angle is:

sin(c) = n₂/n₁

where:

c is the critical angle

n₂ is the index of refraction of the second medium

n₁ is the index of refraction of the first medium

In this case:

n₁ = 1.00

n₂ = 1.33

Substituting these values into the formula:

sin(c) = 1.33/1.00

c = sin⁻¹(1.33/1.00)

c = 42.0°

Therefore, the critical angle for light traveling from the liquid back into the air is 42.0°.

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The velocity of sound in air is 50 m/s.

To calculate the velocity of sound in air, we can use the formula:

v = f * λ

Where:

v is the velocity of sound

f is the frequency of the sound wave

λ is the wavelength of the sound wave

In this case, the first resonance occurs when the length of the glass tube is a quarter of the wavelength. So, for the first resonance:

λ₁ = 4 * L₁

Where:

λ₁ is the wavelength at the first resonance

L₁ is the length of the tube

Given that L₁ = 30 cm, we can calculate the wavelength at the first resonance:

λ₁ = 4 * 30 cm = 120 cm

Now, when the water level is 25 cm below the open end, the effective length of the tube becomes L₂ = L₁ - 25 cm = 5 cm.

To find the wavelength at the next resonance, we can use the formula:

λ₂ = 4 * L₂

λ₂ = 4 * 5 cm = 20 cm

Since the frequency remains the same (250 Hz), we can now calculate the velocity of sound using the equation v = f * λ:

v = 250 Hz * 20 cm = 5000 cm/s = 50 m/s

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The equation of motion for the given system, considering the damping force and the external force, can be determined using Newton's second law.

The equation of motion for the system can be expressed as:

\(m * a + c * v + k * x = f(t)\)

Where:

Using Newton's second law (F = ma), we can rewrite the equation as:

\(10 * (d^2x/dt^2) + 90 * (dx/dt) + 140 * x = 5 * sin(t)\)

This is the equation of motion that describes the behavior of the system, taking into account the mass, damping force, spring constant, and the applied external force.

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Iron oxide cement produces bright-red and yellow colors in some sandstones.

The coloration in sandstones is often influenced by the presence of different minerals and pigments in the cement that binds the sediment grains together. Iron oxide, specifically hematite (Fe2O3) and goethite (FeO(OH)), is a common cementing material found in sandstones. When present in higher concentrations, these iron oxide minerals can impart bright-red and yellow hues to the sandstone.

The colors of iron oxide cement in sandstones are a result of the selective absorption and reflection of light. Hematite and goethite have specific light absorption properties that allow them to absorb certain wavelengths of light, particularly in the blue and green regions of the visible spectrum. As a result, the sandstone appears red or yellow, as these colors are the wavelengths of light that are not absorbed and are instead reflected or transmitted.

The specific shades and intensity of red and yellow colors in sandstones can vary depending on factors such as the concentration of iron oxide minerals, grain size, and the presence of other minerals or impurities. Different geological processes and environmental conditions during the formation of sandstones can contribute to the variation in coloration.

The bright-red and yellow colors observed in some sandstones are typically caused by the presence of iron oxide cement, specifically hematite and goethite. The selective absorption and reflection of light by these minerals result in the sandstone appearing red or yellow. The exact coloration may vary based on factors such as the concentration of iron oxide, grain size, and geological processes involved in the sandstone's formation.

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If a neutral material like fur is rubbed on another neutral object like a rubber ball then the balloon becomes negatively charged and the fur becomes positively charged. The correct option is A.

When two or more bodies come into touch and then break apart, static electricity results. The transport of electrons from one atom to another is caused by this interaction between surfaces.

When the positive and negative charges are out of balance, static electricity is produced.

While electrons like to hop all over the place, protons and neutrons don't move around very much. A negative charge is present when an object (or person) possesses more electrons.

The animal fur lacks electrons while the rubber balloon has an abundance of them.

The rubber balloon has an overabundance of negative charge due to its extra electrons. The absence of electrons on animal fur also gives it a positive charge.

Thus, the correct option is A.

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Answer:

It just changes. So what happens to the energy in a dropped basketball? ... The court (or ground) also absorbs some of the energy from the impact of the ball--the energy in the ball is transferred to the court. Another form of energy is heat energy.

Explanation: trust

Answer:

I think c is the correct answer

Answer: C

Explanation:

Answer:

Mostly with aid of Kohlberg 's moral growth theory, I clarify this answer, which would also be separated into three stages under which this particular problem is illustrated below.

Explanation:

The daughter's father would think about either the penalty during that point if he commits any wrongdoing or breaches laws to save her daughter. But another way to make that happen for surgery is that a person cares about either the legislation and rules as well as the significance of respecting them throughout the pre-conventional process. He will also attempt to establish its insight into solving these problems.

As per the traditional process of the spiritual psychosocial development of Kohlberg, her father would think of civilization because there are conventions that unless he borrows money of his dad again for the procedure of their daughter, culture would label him greedy or prejudice against him to pay the profits of his father despite his consideration.

As per this argument, he might determine for her child as well as father in his philosophy including perspectives, which means that his father is not in the situation of requesting credit, but because he's in a position to give a recommendation, therefore he certainly gives authorization rescue her grandchildren even though she is small and has several activities to do in hers life. And subsequently, with emerging profits, he will take care of his father as well as daughter, and nowadays focus says their daughter wants treatment to recover.