what is the density in g/l of co at 1140 torr and 75.0 °c?

The correct answer is D,  "The rotational inertia increases, while the angular momentum is conserved."

Inertia is a fundamental concept in physics that describes an object's resistance to changes in its motion. Specifically, it refers to an object's tendency to maintain its current state of motion, whether at rest or in motion at a constant velocity, unless acted upon by an external force.

The concept of inertia was first introduced by Sir Isaac Newton in his first law of motion, also known as the law of inertia. According to this law, an object will remain at rest or in uniform motion in a straight line unless acted upon by a net external force. The amount of inertia an object has depends on its mass - the greater the mass, the greater the inertia.

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Answer:

yes   1000 j   as I posted on the same Q elsewhere

Explanation:

Answer:

0.72 atm

Explanation:

Given that the atmospheric pressure on a mountain is 550 mmHg.

Where 1 atm is equal to 760 mmHg.

To Convert millimetre mercury (mmHg) into atmospheric pressure units (atm) , divide the magnitude of pressure by 760. That is,

Pressure = 550/760

Pressure = 0.724 atm

Therefore, pressure in atm is 0.72 atm in two significant figures

The velocity after 1.5seconds is 0.3 m/s.

The rate at which a body's displacement changes in relation to time is known as its velocity. Velocity is a vector quantity with both magnitude and direction. SI unit of velocity is meter/second.

Initial upward velocity: u = 15 m/s.

Time interval: t = 1.5 second.

Acceleration due to gravity acting downward is = 9.78 m/s².

Let the final velocity is v.

Therefore,

v = u -gt

= (15 - 9.8 × 1.5) m/s

= 0.3 m/s.

So, the velocity after 1.5seconds is 0.3 m/s.

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Answer:

North Korea I'm pretty sure

The force of attraction that a -40. 0 μc point charge exerts on a 108 μc point charge has magnitude 4 N. then these two charges are apart by the distance 3.11 m.

According to the law, the strength of the electrostatic force of attraction or repulsion between two point charges is inversely proportional to the square of the distance between them and directly proportional to the product of the magnitudes of the charges. Coulomb investigated the repellent force between things with identical electrical charges:

Given,

q₁ = 40 × 10⁻⁶ C

q₂ = 108 × 10⁻⁶ C

F = 4 N

1/4πε0 =  8. 99 × 10⁹

Coulomb's law is given by,

F = q₁q₂ ÷ 4π∈r²

4 N = - 40 × 10⁻⁶ C × 108 × 10⁻⁶ C × 8. 99 × 10⁹ ÷ r²

4 N = 38.83÷ r²

r² = 38.83÷ 4

r² = 9.7

r = 3.11 m

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The frequency of the second overtone if the fundamental frequency is 308 Hz is equal to 1540 Hz.

An overtone can be described as any resonant frequency above the fundamental frequency of a sound. Overtones can be defined as all pitches higher than the lowest pitch within an individual sound. While the fundamental can be described as usually heard most prominently, overtones are present in any pitch except a true sine wave.

The lowest normal frequency is called the fundamental frequency, while the higher frequencies are known as overtones.

Given, the fundamental frequency, f₀ = 30 8 Hz

The relationship between the fundamental frequency and the second overtone is given by

f₂ = 5 f₀

f₂ = 5 × 308 = 1540 Hz

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The angular acceleration of the object after it is released from rest can be calculated using the formula α = (g*(r1-r2))/r1r2, where g is the acceleration due to gravity. Neglecting any frictional effects, this formula takes into account the difference in radii between the object's initial and final positions.

When the object is released from rest, it begins to fall due to the force of gravity. As it falls, its potential energy is converted into kinetic energy, causing it to gain speed. Since the object is constrained to move along a circular path, this increase in speed corresponds to an increase in angular velocity. The angular acceleration is the rate at which the angular velocity is changing, and is given by the formula α = Δω/Δt.

In this problem, we can use the fact that the object is not sliding or slipping along the surface to assume that the net torque acting on it is zero. This means that the angular acceleration is solely determined by the radial forces acting on the object. The difference in radii between the object's initial and final positions gives rise to a net radial force, which is responsible for the object's angular acceleration. Using the formula α = (g*(r1-r2))/r1r2 takes into account this net radial force and yields the angular acceleration of the object.

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Answer:

indirect sunlight

Explanation:

we're receiving some sunlight, but not much, if it's winter in one place, it's summer in another

Answer:

indirest sunlight

Explanation:

if there was no sunlight we would die.

Explanation:

100 m / (1.20 m) = 83.3

100 m / (0.75 m) = 133.3

Rounded up, the first sprinter takes 84 steps, and the second sprinter takes 134 steps.

Answer:

1,500 ohms is the total resistance

Answer:

55%

Explanation:

take efficiency=power output/power input multiply by 100%

When two vectors are added together graphically, one can drag the vectors around (keeping the direction the same) so that the tail of one vector touches the tip of the other. show answer no attempt if the three vectors in the figure are added together (a b c), in approximately what direction will the resultant be.

The answer is no length and no direction.

A vector is a type of quantity that has a value and a direction. Quantities that include vector quantities include displacement, force, velocity, acceleration and others. A vector is described as a directed line segment that has a point of origin (point of origin) as the starting place for the vector to work.

The length of the line indicates the value of the vector and the direction of the arrow indicates the direction in which the vector acts. The line through the vector is called the working line.

Write a symbol for a vector quantity using upright letters in bold, for example the vector AB is written AB.

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Astronomers call the vast, rotating cloud of vapor and dust from which the solar system formed as D) The Solar Nebula.

The Solar Nebula is the rotating cloud of gas and dust that is believed to have formed the Sun and the solar system approximately 4.6 billion years ago. This theory is supported by observations of other star-forming regions in our galaxy, which exhibit similar conditions and structures. As the Solar Nebula collapsed under its own gravity, it began to spin faster and flatten into a disk shape, with the Sun forming at the center and the planets forming from the material in the disk.

The Solar Nebula theory is currently the most widely accepted explanation for the formation of the solar system. It states that a rotating cloud of gas and dust collapsed under its own gravity, eventually forming the Sun and the planets.

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A) The triathlete's bike is 50.0 m from the shore on the land   B) the component of her distance from the bicycle along the shore is 70.0 m.

In a triathlon, a triathlete starts with swimming, then biking, and ends with running. Here, we have been given that a triathlete on the swimming leg of a triathlon is 120.0 m from the shore (a). The triathlete's bike is 50.0 m from the shore on land (b).

We need to find the component of her distance from the bicycle along the shore. Component of her distance from the bicycle along the shore In the above set, we can see that the triathlete is swimming in a straight line towards the shore, while the bike is on the land. We need to find the component of her distance from the bicycle along the shore. T

his component is represented by the horizontal distance (d) between the point where the swimmer hits the shore and the bike (50.0 m from the shore).Therefore, the component of her distance from the bicycle along the shore is d = 120.0 m - 50.0 m = 70.0 m. Therefore, the component of her distance from the bicycle along the shore is 70.0 m.

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Answer:

Topographic maps give the user the ability to view a three-dimensional landscape on a two-dimensional map. One who is able to read a topo map can identify the elevation and location of valleys, peaks, ridges, and other land features.

Explanation:hope this helps

Answer:

Water and power come from external sources.

Explanation:

The near point and far point of his eyes will be -0.5m and -2 m.

According to the problem, we refer to the below equation for calculating the focal length,

\(1 / f = 1 / u + 1 / v\)

where f stands for the focal length of the lens, u stands for the distance of the object from the lens and v stands for the distance of the image formed from the lens

Since we are provided that the power of the lens for near vision is +2.00D

power is  defined as the inverse of the focal length in meters

therefore, the focal length \(f= 1/d\)

                                              = 1/2

                                              = 0.5 m

Since the mink point is 25 m

Now, using the required values in the first equation we get,

                                   \(1 / f = 1 / u + 1 / v\)

                                  \(\\ 1 / v\)   = 1 / 0.5 - 1 / 0.25

                                   \(\\ 1 / v\)  = -2

                                     v = -0.5 m

The power of the lens for the far vision is -0.5 D

Similarly

\(f = 1 / D\)

f = -1 / 0.5

f = - 2m

Since an object in far vision is considered infinity

So,

            \(1 / f = 1 / u + 1 / v\)

            1 / v = -1/2 - 1 / ∞

              v = -2 m

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A woman wears bifocal glasses with lenses 2.0 cm in front of her eyes. The upper half of each lens has a power of -0.500 diopter and corrects her far vision so that she can focus clearly on distant objects when looking through that half. The lower half of each lens has power +2.00 diopters and corrects her near vision when she looks through that half. What are the far point and near point of her eyes?

1) Experiment to find the density of the wood block without using a weighing scale:

a) Fill the pyrex beaker with a known volume of water.

b) Measure and record the initial water level in the beaker.

c) Carefully lower the wood block into the water, ensuring it is fully submerged.

d) Measure and record the new water level in the beaker.

e) Calculate the volume of the wood block by subtracting the initial water level from the final water level.

f) Divide the mass of the wood block (obtained from the second experiment) by the volume calculated in step e to determine the density of the wood block.

2) Experiment to measure the density of the wood block using a weighing scale:

a) Weigh the wood block using a weighing scale and record its mass.

b) Fill the pyrex beaker with a known volume of water.

c) Measure and record the initial water level in the beaker.

d) Carefully lower the wood block into the water, ensuring it is fully submerged.

e) Measure and record the new water level in the beaker.

f) Calculate the volume of the wood block by subtracting the initial water level from the final water level.

g) Divide the mass of the wood block by the volume calculated in step f to determine the density of the wood block.

Comparing the results from both experiments will provide insights into the porosity of the wood block. If the density calculated in the first experiment is lower than in the second experiment, it suggests that the wood block is porous and some of the water has been absorbed.

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Explanation:

chemical changes

>produce new substances w/ different chemical structure/ properties

> thermal energy can be used to BREAK bonds (endothermic)

>thermal energy can be transferred to a chem rxn to help form new products (endothermic)

> heat can be released by an exothermic chemical reaction (excess energy- the total energy used to break bonds is less than energy released in forming new bonds)

physical changes

>does not result in new substances (typically changes in state- solid, liquid, gas)

> thermal energy can be transferred to EVAPORATE water (add thermal E... water (liquid) to steam (gas)) or FREEZE water (remove thermal E... water (liquid) to ice (solid))

Answer:

The soprano's singing matched the natural frequency of the glass, causing it to vibrate. The strong vibrations caused the glass to shatter.

Explanation:

edg 2020

the pressure exerted by the atmospheric air is called atmospheric pressure

Answer:

The correct answers are 2, 4

Explanation:

The dispersion of light occurs due to the interaction of electromagnetic radiation with matter, let's analyze the phenomenon, when a ray of light reaches a particle is absorbed and subsequently re-emitted in all directions, for radiation of lower wavelength (higher frequency ) the highest absorptions and therefore the missionary also the highest; An example of this is the blue light from the atmosphere, which is the absorption of blue light and its subsequent re-emission

Based on this explanation, the dispersion in gas particles or molecules is proportional to the frequency of the light (inversely proportional to the wavelength) and is also proportional to the number of dispersing particles in the air, that is, to the total volume of the particles. dispersers.

The correct answers are 2 and 4

Answer:

0.37 kg

Explanation:

I'm not a professor myself, but this is how I worked it out:

using the graph, after 100 seconds, the temperature is 100 degrees Celsius.

If we now substitute everything into the specific heat capacity equation, making the mass "m", we would come up with:

4200 = 155000/(m x 100)

If we rearrange and solve for m, we get 0.37 kg.

I'm not sure if I have done this correctly, feel free to correct me.

Hope this helps!

By using the specific heat capacity formula, the  mass of water in the kettle is 0.47 kg

Give that the energy transferred to the water in 100 seconds was 155 000 J and the specific heat capacity of water = 4200 J/kg °C

From the graph;

The initial temperature of the water at time zero is 22 degree Celsius

The final temperature of the water at time 100s is 100 degree Celsius

Change in temperature (T) = 100 - 22 = 78 degree Celsius

To determine the mass of water in the kettle, use the heat energy formula below

E = mcT

Substitute all the parameters into the equation

155000 = 4200 x 78 M

Make M the subject of the formula

M = 155000/327600

M = 0.47 kg

Therefore, the  mass of water in the kettle is 0.47 kg

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Answer:

True

Explanation:

Generally speaking, we say that light travels in waves, and all electromagnetic radiation travels at the same speed which is about 3.0 * 108 meters per second through a vacuum.

Answer:

absolutely true

Explanation:

as it travels in a speed of 30×108 m per second

The theoretical values of nodal voltages using Kirchhoff's Laws can be used in the analysis of an electrocardiogram (ECG) to identify potential cardiac abnormalities and diagnose specific heart conditions by providing important information about the electrical activity of the heart.

The ECG measures the electrical activity of the heart by detecting the changes in voltage that occur during each heartbeat. The electrical activity of the heart can be modeled using Kirchhoff's Laws, which describe how current and voltage behave in an electrical circuit. Abnormalities in the electrical activity of the heart can be detected by analyzing the ECG waveform and comparing it to the theoretical values of nodal voltages.

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--The complete Question is, How can the theoretical values of nodal voltages using Kirchhoff's Laws be used in the analysis of an electrocardiogram (ECG) to identify potential cardiac abnormalities and diagnose specific heart conditions? --

Answer:

one fourth of accelerattion, its obvious

Explanation:

A specific net force is applied to an object, and it causes a certain acceleration. If the same net force is applied to a new object with four times the mass, the acceleration of the more massive object would be one-fourth of the initial acceleration.

Newton's Second Law states that The resultant force acting on an object is proportional to the rate of change of momentum.

The mathematical expression for Newton's second law is as follows

F = m × a

As given in the problem statement if a specific net force is applied to an object, it causes a certain acceleration. If the same net force is applied to a new object with four times the mass,

Since the force is the same and the mass is four times the initial mass, the acceleration would be one-fourth of the initial acceleration.

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