Write an article to explain the process that occurs when matter is heated, or cooled. How does matter change its physical state between solid, liquid, and gas? Provide a real-life example. Also, describe the properties of the three main states of matter.

Answer:

flat lol, that's the answer

Answer:

B,C,D

Explanation:

Ap3X

This question involves the concepts of average kinetic energy and velocity.

Complete question: Calculate the root mean square velocity of the nitrogen molecules, at 25°C, in meters per second (m/s). Do not include the unit of measure in your answer.

The root mean square velocity of the nitrogen molecule at 25°C is "727.66 m/s".

The average kinetic energy of gas molecules is given by the following formula:

\(K.E=\frac{3}{2}KT\)

Also,

\(K.E = \frac{1}{2}mv^2\)

Comparing both equations we get:

\(\frac{3}{2}KT=\frac{1}{2}mv^2\\\\v=\sqrt{\frac{3KT}{m}}\)

where,

v = root men square velocity = ?

K = Boltzman's constant = 1.38 x 10⁻²³ J/k

T = absolute temperature = 25°C + 273 = 298 k

m = mass of nitrogen molecule = 2.33 x 10⁻²⁶ kg

Therefore,

\(v=\sqrt{\frac{3(1.38\ x\ 10^{-23}\ J/k)(298\ k)}{2.33\ x\ 10^{-26}\ kg}}\)

v = 727.66 m/s

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Answer:

The angular displacement is not a length (not measured in meters or feet), so an angular displacement is different than a linear displacement. ... As the object rotates through the angular displacement phi, the point on the edge of the disk moves distance sa along a circular path.

Answer:

Option D

Explanation:

11,890

Hope this helps

The mass moment of inertia of an unloaded disk can be calculated using the formula I = \((1/2) × m × r^2\), we calculated the mass moment of inertia to be 0.25 \(kg·m^2\).

The mass moment of inertia of an unloaded disk, also known as the polar moment of inertia, can be calculated using the formula:

I = \((1/2) × m × r^2\)

where I is the mass moment of inertia, m is the mass of the disk, and r is the radius of the disk.

Assuming that we have a disk with a mass of 1 kg and a radius of 0.5 m, we can substitute these values into the formula to calculate the mass moment of inertia:

I = \((1/2) × m × r^2\)

I = (1/2) × 1 kg × \((0.5 m)^2\)

I = 0.25 \(kg·m^2\)

This value represents the disk's resistance to rotational acceleration and is an important parameter in many areas of physics and engineering.

Therefore, the mass moment of inertia of the unloaded disk is 0.25 \(kg·m^2\).

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A Stone Is Dropped Into a Deep Water Well. The Sound of The Stone Hitting The Water Is Heard After 3.4 Seconds. then The Depth of The Water Well is 56.6 m.

In terms of physics, sound is a vibration that travels through a transmission medium like a gas, liquid, or solid as an acoustic wave. Sound is the receipt of these waves and the brain's perception of them in terms of human physiology and psychology. Only acoustic waves with frequencies between about 20 Hz and 20 kHz, or the audio frequency range, may cause a human to have an auditory sensation. These correspond to sound waves in air with an atmospheric pressure of 17 metres (56 ft) to 1.7 centimetres (0.67 in) in wavelength. Ultrasounds are sound waves with a frequency higher than 20 kHz that are inaudible to humans. Infrasound refers to sound frequencies below 20 Hz. Animals of different species have different hearing ranges. Acceleration of the stone is 9.8 m/s²

according to kinematics,

s = ut + 1/2 at²

s =  1/2 ×9.8×3.4²

s = 56.6 m

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Answer:

Kinetic energy is present in an object which is in motion.

Explanation:

At the end of the Electroweak era, matter and antimatter annihilate each other. Because of a small imbalance in the ratio, the universe is left with only matter.

The baryogenesis process refers to the hypothetical mechanism or mechanisms that generated the observed baryon asymmetry in the universe which refers to the fact that there is much more matter than antimatter

If the universe were perfectly symmetric between matter and antimatter the particles and antiparticles would have annihilated each other completely leaving behind only radiation.

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Answer:

7.5 joules

Explanation:

The neighbour weighs Iron. As he is a blacksmith, iron is the only thing he weighs the whole day.

A riddle is a statement, question or phrase having a double or veiled meaning, put forth as a puzzle to be solved.

If Robert, your neighbor, a forty-five-year-old blacksmith is seven feet tall, and eats all day long, based on these statements, we can explain the riddle as Robert weighs iron for the fact that he  is a blacksmith, iron is the only thing he weighs the whole day.

Thus, the correct explanation for the riddle is " The neighbour weighs Iron. As he is a blacksmith, iron is the only thing he weighs the whole day.

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The skater's final angular velocity is approximately 9.86 rad/s.

The skater's final angular velocity can be calculated using the principle of conservation of angular momentum. The equation for angular momentum is given by:

L = Iω

where L is the angular momentum, I is the moment of inertia, and ω is the angular velocity.

Initially, the skater has an angular momentum of:

L_initial = I_initial * ω_initial

Substituting the given values:

L_initial = 2.12 kg m² * 3.25 rad/s

The skater's final angular momentum remains the same, as angular momentum is conserved:

L_final = L_initial

The final moment of inertia is given as 0.699 kg m². Therefore, the final angular velocity can be calculated as:

L_final = I_final * ω_final

0.699 kg m² * ω_final = 2.12 kg m² * 3.25 rad/s

Solving for ω_final:

ω_final = (2.12 kg m² * 3.25 rad/s) / 0.699 kg m²

Hence, the skater's final angular velocity is approximately 9.86 rad/s.

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The government derive its power according to the Declaration of Independence is the document that declare the freedom of the people. The document was approved by the Continental Congress on July 4, 1776.

Below are the main messages of the declaration of independence.

(1) God made all men equal and gave them the rights of life, liberty, and the pursuit of happiness.

(2) The main business of government is to protect these rights.

(3) If a government tries to withhold these rights, the people are free to revolt and to set up another government.

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Answer:

It's is c coz the weight is equal to the normal force

Explanation:

no. of seconds in a year = 60 × 60 × 24 × 365

= 31,536,000 seconds

so 2.05 × 10⁵ into years = 0.0065 years (approximately)

The formula for calculating momentum is expressed as

momentum = mass x velocity

From the information given,

velocity = 900

momentum = 7

Thus,

7 = mass x 900

mass = 7/900 = 0.0078 kg

We would convert it to gram by multiplying by 1000

Thus,

mass = 0.00778 x 1000

mass = 7.78 g

Answer:

D

Explanation:

If the water represents the oceans water then you'd would need to calculate how much of earth is water (96.5)

Answer:

Star characteristics consider physical characteristics such as stellar mass, size, surface temperature, and luminosity .

Answer:

They are made of gases.

Explanation:

Edg 2020

Answer:

Name and Title: Lyric Howe, Mrs. Stefani, 9/20/17, Thermal Energy and Chemical Change Engineering Lab

Define the Problem:To understand thermal energy and chemical changes better by building my own train.

Criteria and Limitations—In this section, please list at least three criteria that must be met by your train design. Also include any limitations that could prevent it from getting its cargo to the station.

Criteria Limitations One steam engine  Two separate hills  One cargo box Missing tracks  Stack items across or atop each other Weight

Design Ideas—Pros and Cons:In this section, describe three design ideas you have for your train. List at least one pro (a positive) and one con (a negative) for each design option

Description of Train Design One Wheels first with two springs underneath each wheel, the panda cargo in the middle with the steam engine in the front, and two sets of helium balloons.

Answer:

C) 26.6

Explanation:

I don't know how to calculate vector

The angle between the two vectors is 117⁰

The given parameters;

vector A = 3.00i + 1.00j

vector B = -3.00i + 3.00j

The  angle between the two vectors is calculated as follows;

\(cos \ \theta = \frac{A\ . \ B}{|A| \ . \ |B|}\)

The dot product of vector A and B is calculated as;

\(A \ . \ B = (3i \ + j) \ . \ (-3i \ + 3j) = (3\times -3) + (1 \times 3) = -9 + 3 =- 6\)

The magnitude of vector A and B is calculated as;

\(|A| = \sqrt{3^2 + 1^2} = \sqrt{10} \\\\|B| = \sqrt{(-3)^2 + (3)^2} = \sqrt{18}\)

The  angle between the two vectors is calculated as;

\(cos \ \theta = \frac{-6}{\sqrt{10} \ . \sqrt{18} } \\\\cos \ \theta = \frac{-6}{\sqrt{180} } \\\\cos \ \theta = -0.4472\\\\\theta = cos \ ^{-1} (-0.4472) \\\\\theta = 116.6^0 \approx 117^0\)

Thus, the angle between the two vectors is 117⁰

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It would be best to show your circuit at high and low frequencies. Circuit shown is a low-pass filter, that show no work will be marked zero is high band low.

To determine the type of filter shown in the circuit, we can calculate the impedances at low and high frequencies and use that to find the ratio of v3/v1 at low and high frequencies. At high frequencies, the impedance of C1 is low and the impedance of C2 is high. This means that v3/v1 will be equal to the impedance of R3 in parallel with the impedance of R2 at high frequencies. The impedance of R3 in parallel with R2 can be calculated using the formula:

1/(1/R3 + 1/R2) = R3 * R2 / (R3 + R2)

At low frequencies, the impedance of C1 is high and the impedance of C2 is low. This means that v3/v1 will be equal to the impedance of R3 in series with the impedance of R2 at low frequencies. The impedance of R3 in series with R2 can be calculated using the formula:

R3 + R2

If we compare the values of v3/v1 at low and high frequencies, we can see that the ratio is much larger at low frequencies than at high frequencies. This indicates that the filter shown in the circuit is a low-pass filter, which allows low-frequency signals to pass through while attenuating (reducing the amplitude of) high-frequency signals.

Overall, the circuit shown is a low-pass filter.

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Answer:

While the causes of the bubble are disputed, the precipitating factor for the Financial Crisis of 2007–2008 was the bursting of the United States housing bubble and the subsequent subprime mortgage crisis, which occurred due to a high default rate and resulting foreclosures of mortgage loans, particularly adjustable. Hope this helps!

Explanation:

Answer:

Postural deviations can cause poor balance, muscle pain and skeletal stress.

Explanation:

The mass percent of hydrogen in CH₄O is 12.5%.

Mass percent is the mass of the element divided by the mass of the compound or solute.

Step 1: Calculate the mass of the compound.

mCH₄O = 1 mC + 4 mH + 1 mO = 1 (12.01 amu) + 4 (1.00 amu) + 1 (16.00 amu) = 32.01 amu

Step 2: Calculate the mass of hydrogen in the compound.

mH in mCH₄O = 4 mH = 4 (1.00 amu) = 4.00 amu

Step 3: Calculate the mass percent of hydrogen in the compound.

%H = (mH in mCH₄O / mCH₄O) × 100%

%H = 4.00 amu / 32.01 amu × 100% = 12.5%

The mass percent of hydrogen in CH₄O is 12.5%.

CO2 = 1.580 grams H2O = 0.592 grams Lookup the molar mass of each element in the compound Carbon = 12.0107 Hydrogen = 1.00794 Oxygen = 15.999 Calculate the molar mass of CH4O by adding the total masses of each element used. 12.0107 + 4 * 1.00794 + 15.999 = 32.04146 Now calculate how many moles of CH4O you have by dividing by the molar mass. m = 1.15 g / 32.04146 g/mole = 0.035891 mole Now figure out how many moles of carbon and hydrogen you have. Carbon = 0.035891 moles Hydrogen = 0.035891 moles *

Therefore, The mass percent of hydrogen in CH₄O is 12.5%.

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Complete Question

The complete question is shown on the first uploaded image

Answer:

Explanation:

From the question we are told that

     The mass of the bat is \(m_b = 0.800 \ kg\)

      The bat length is  \(L_b = 0.900 \ m\)

      The distance of the bat's center of mass to the handle end is  \(z_c = 0.600 \ m\)

      The moment of inertia of the bat is    \(I = 0.0530 \ kg \cdot m^2\)

The objective of the solution is to find  x   which is the distance from the handle of the bat to the point where the baseball hit the bat

Generally the velocity change at the end of the bat is mathematically represented as

         \(\Delta v_e = \Delta v_c - \Delta w* z_c\)

         Where  \(\Delta v_c\) is the velocity change at the center of the bat  which is mathematically represented as

                \(\Delta v_c = \frac{Impulse}{m_b }\)

We are told that the impulse is  J so

              \(\Delta v_c = \frac{J}{m_b }\)

And   \(\Delta w\) is the change in angular velocity which is mathematically represented as

         \(\Delta w = \frac{J (z -z_c)}{I}\)

Now we have that

           \(\Delta v_e = \frac{J}{m_b } - [\frac{J (x- z_c)}{I} ] * z_c\)

Before a swing when the bat is at rest the velocity change a the end of the bat handle is zero  and the impulse will be  1

   So  

            \(0 = \frac{1}{m_b } - [\frac{J (x- z_c)}{I} ] * z_c\)

=>           \(x = \frac{I}{m_b z_c} + m_b\)

substituting values

            \(x = \frac{0.530}{0.800 * 0.600} + 0.600\)

           \(x = 0.710 \ m\)

Answer:

Yeast can use oxygen to release the energy from sugar (like you can) in the process called "respiration". ... So, the more sugar there is, the more active the yeast will be and the faster its growth (up to a certain point - even yeast cannot grow in very strong sugar - such as honey).