what is the pressure of water vapor (m = 0.018 kg/mol) at a temperature of 600 k and density of 1.5 kg/m3?

Answer:

\(\huge\boxed{\sf P.E. = 240\ MJ}\)

\(\huge\boxed{\sf K.E. = 19.6\ MJ}\)

Explanation:

Given:

Mass = m = 200,000 kg

Vertical Distance = h = 120 m

Speed = v = 14 m/s

Acceleration due to gravity = g = 10 m/s²

Required:

1) Gravitational Potential Energy = P.E = ?

2) Kinetic Energy = K.E. = ?

Formula:

1) P.E. = mgh

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

Solution:

1) P.E. = (200,000)(10)(120)

P.E. = 240,000,000 Joules

P.E. = 240 Mega Joules

P.E. = 240 MJ

2) K.E. = 1/2 (200000)(14)^2

K.E. = (100000)(196)

K.E. = 19,600,000 Joules

K.E. = 19.6 MJ

\(\rule[225]{225}{2}\)

Hope this helped!

Answer:

Direct proportionality

Explanation:

The graph of variables that are directly proportional such as the temperature and volume of a gas has a graph consisting of a diagonal line that from the lower left of the graph to the upper right of the graph

According to Charles law, the volume of a given mass of gas is directly proportional to its temperature in Kelvin at constant pressure

Charles law can be represented mathematically as V ∝ T

From which we have;

V₁/T₁ = V₂/T₂, therefore, the graph of V to T has a constant slope, ΔV/ΔT.

When a person blacks out, their hippocampus is unable to record new memories.

In a region of the brain known as the hippocampus, our brain retains a short-term memory of the experience. Later, the memories are consolidated, or moved to a different region of the brain, where they will be stored for a longer period of time.

Alzheimer's disease normally starts by destroying neurons and the connections between them in the cortex and hippocampus, two regions of the brain essential in memory.

Later, it has an impact on the parts of the cerebral cortex that control language, thought, and social interaction. The majority of short-term memory is kept in the frontal lobe of the cerebral cortex.

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a) Young's modulus of this wire is \(80,907,029 N/m^2\) b) The speed of propagation of sound on the wire is 96.4 m/s. c) The calculated speed of sound is a longitudinal speed.

(a) To calculate Young's modulus of the wire, we can use the formula: Young's modulus (Y) = (Stress) / (Strain)
Stress = Force / Area
Strain = Change in Length / Original Length

Given:
Length (L) = 5.50 m
Cross-sectional area (A) =\(0.100 cm^2 = 0.0000100 m^2 (converted  to m^2)\)
Change in length (∆L) = 6.80 mm = 0.00680 m (converted to m)
Force (F) = 1.00 kN = 1000 N (converted to N)

First, let's calculate stress and strain:
Stress = F / A = \(1000 N / 0.0000100 m^2 = 100,000,000 N/m^2\)
Strain = ∆L / L = 0.00680 m / 5.50 m = 0.001236

Now, we can calculate Young's modulus:
Y = Stress / Strain = \(100,000,000 N/m^2 / 0.001236 = 80,907,029 N/m^2\)

(b) To calculate the speed of propagation of sound on the wire, we can use the formula:

Speed of sound (v) = \(sqrt(Y / ρ)\)

Given:
Mass density (ρ) =\(8700 kg/m^3\)
Young's modulus (Y) =\(80,907,029 N/m^2\)

Now, we can calculate the speed of sound:
\(v = sqrt(80,907,029 N/m^2 / 8700 kg/m^3) = sqrt(9297.6 m^2/s^2) = 96.4 m/s\)

(c) The calculated speed of sound is a longitudinal speed. This is because the speed of sound in a solid medium, such as a wire, is related to the compressions and rarefactions of the material along the direction of propagation, which characterizes a longitudinal wave.

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When the robotic spacecraft Mars is 400 million kilometers away from Earth, we communicate with it via radio waves, which move at the speed of light.

The atmosphere, fortunately, shields life on earth. The surface is also not accessible to infrared and long wavelength radio frequencies. Light, which really is difficult for the air to absorb, close rays, and some magnetic fields make up the electromagnetic waves that we can often view on the ground.

In reality, radio waves go through space incredibly swiftly. Since radio waves are an electromagnetic wave, they travel at the speed as light. Light travels at a speed of slightly less than 300,000 km/s second. A light beam could circle the Earth's equator more than seven times in a sec at that speed.

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The system described by the transfer function G(s) = -co² s² + 2a + w², with a damping ratio of 1.3 and a natural frequency of 0.5, has an overdamped unit step response. So, the correct option is (E)

The transfer function of the system is given as G(s) = -co² s² + 2a + w², where co represents the damping ratio, a represents an arbitrary constant, and w represents the natural frequency of the system. We are given that the natural frequency is 0.5 and the damping ratio is 1.3.

To determine the type of unit step response, we need to analyze the damping ratio (co) in relation to the critical damping value (co_critical).

The critical damping ratio (co_critical) is defined as the value where the system is on the threshold between being overdamped and underdamped. It is given by the formula co_critical = 2 * sqrt(a * w²).

In our case, the natural frequency (w) is 0.5, so we can calculate co_critical as follows: co_critical = 2 * sqrt(a * 0.5²).

Since the damping ratio (co) is given as 1.3, we can compare it with co_critical to determine the type of unit step response.

If co > co_critical, the system is considered overdamped (Option E).

If co = co_critical, the system is considered critically damped (Option D).

If co < co_critical, the system is considered underdamped (Option C).

Based on the given values, we can determine that the system is overdamped (Option E) because the damping ratio (1.3) is greater than the critical damping ratio.

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Physical and chemical laboratory experiments include three primary sources of error: systematic error, random error and human error. this simulation shows systematic error.

Systematic error applies to repeated measuring of the same object under repeated conditions of measurement. The amount of the error value is either positive or negative; which is called the fixed system error in laboratory experiments and laboratory tests.

Human error in laboratory experiments and lab tests primarily refers to the mistake in physical and chemical inspection phase caused by the factors of the inspector.

Random error is error caused by unknown factors. This error poses erratic changes at random, primarily due to a variety of small, independent, and accidental factors. The random error is atypical from the surface.

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I would conduct a research program to observe and analyze the spectra of galaxies to gather information about their composition and motion.

With my limited observing time on the world's largest telescope, I would focus on collecting spectral data from various galaxies. Spectroscopy allows astronomers to analyze the light emitted by celestial objects and identify the elements present in their composition. By observing the spectra of galaxies, I could look for distinct patterns or signatures that could differentiate between the two hypotheses.

In the case of the Nebular Hypothesis, which suggests that spiral galaxies are merely nebulae within our own Milky Way, the spectral data would likely exhibit similarities to known nebulae. It would show characteristic emission lines associated with ionized gases, such as hydrogen or oxygen. If this were the case, it would support the notion that spiral galaxies are part of our own galaxy.

On the other hand, if the spectral data revealed a different pattern, such as absorption lines indicative of stars or stellar processes, it would lend support to the Island Universe Hypothesis. This hypothesis proposes that spiral galaxies are distinct, independent entities scattered throughout the universe. The presence of absorption lines associated with specific chemical elements or molecules commonly found in stars would suggest that spiral galaxies are not just nebulae but actual galaxies in their own right.

By carefully analyzing the spectral data collected from various galaxies, I would be able to compare their compositions and identify any significant differences that would help discriminate between the two hypotheses. This research program offers the best chance of success because it leverages the power of spectroscopy to provide concrete evidence regarding the nature of spiral galaxies, regardless of the absence of Cepheid variables in Andromeda.

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A. TRUE - Current evidence does suggest that there could be 100 billion or more planets in the Milky Way galaxy.

The Milky way galaxy may contain 100 billion or more planets, according to the best available data. Based on numerous scientific investigations and observations, including information from the Kepler Space Telescope and other planet-hunting missions, this estimate was created.

The discovery of exoplanets is one of the most important techniques used to determine how many planets there are in the galaxy. Planets known as exoplanets revolve around stars outside of our solar system. Thousands of exoplanets have been found and confirmed by scientists, and these findings have shed important light on the predominance of planets in our galaxy.

It's crucial to remember that determining the precise number of planets in the Milky Way is difficult, and our knowledge is always changing as technology and observational methods advance. On the basis of the already available scientific knowledge, the statement is "A. TRUE" because the data clearly suggests that our galaxy contains at least 100 billion or more planets.

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To calculate the total charge on a finite sheet 0≤x≤1, 0≤y≤1 on the z=0 that has a charge density of rho s=xy(x 2+y 2+25) 2 3 n C/m 2. First, we need to use the formula Q=∫s ρs ds where ds=dx dy.  the total charge on the sheet is 111.31 nC.

Where ρs is the charge density and s is the surface area of the sheet. The surface area of the sheet is given by s=∫∫dx dy.

Therefore, Q=∫s ρs ds=∫∫ρs dx dy.

From the question, ρs=xy(x2+y2+25)^2/3

Therefore,

Q=∫∫x y(x2+y2+25)2/3dxdy = ∫01∫01xy(x2+y2+25)2/3dx dy

Separating out the terms containing y, we obtain;

Q=∫01ydy∫01x(x2+25)2/3dx + ∫01ydy∫01xy2(x2+25)2/3dx ∫01ydy∫01y(x2+y2+25)2/3dx

On integrating, we get;

Q =1/4 [(14+245)(5/3)+(14+245)(5/3)(2/5)+(14+245)(5/3)(2/5)]

=111.31 n C

Therefore, the total charge on the sheet is 111.31 nC.

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The Uniform Circular Motion Interactive is a tool that allows users to explore the physics of uniform circular motion. The user can change the radius of the circle, the speed of the object, and the mass of the object.

When an object moves in a circle at a constant speed, it is said to be in uniform circular motion. The velocity of the object is constantly changing direction, even though the speed is constant. This means that the object is accelerating.

The acceleration of an object in uniform circular motion is directed towards the center of the circle. The magnitude of the acceleration is equal to the square of the speed of the object divided by the radius of the circle.

The net force on an object in uniform circular motion is always directed towards the center of the circle. The magnitude of the net force is equal to the mass of the object times the acceleration of the object.

The Uniform Circular Motion Interactive is a valuable tool for understanding the physics of uniform circular motion. It allows users to explore the effects of changing the radius of the circle, the speed of the object, and the mass of the object on the velocity, acceleration, and net force of the object.

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The air-resistance force acting on a falling coconut and a feather is not the same. The amount of air resistance depends on the shape, size, weight and velocity of the objects.

Generally, the larger and heavier the object, the greater the air resistance. The coconut is larger and heavier than the feather, and so it experiences a greater air resistance force than the feather, as it falls from the tree to the ground. The air resistance force on the coconut is also increased due to its shape. The coconut has a rounded surface, which increases the air resistance, while the feather is lightweight and has a wide, flat surface, which decreases the air resistance. The speed at which the coconut and feather fall will also affect the amount of air resistance on each. If the coconut and feather fall at the same speed, the coconut will experience a greater air resistance force due to its weight, shape and size. However, if the coconut falls at a faster speed than the feather, then the air resistance force will be greater on the coconut.

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Answer:

imma have to come back to you on that one

Answer:

The Sun is at the center of the solar system and the planets move around it.

Explanation:pluto/edmentum

The referee should award a goal to the attacker since the part of the body in contact with the ball is not hand and it cannot be considered as handball.

There are several rules considered during a game of soccer before the referee will award goal.

The shoulder area ABOVE the armpit is not part of the hand, thus the referee should award a goal to the attacker since the part of the body in contact with the ball is not hand and it cannot be considered as handball.

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Answer:

t = 11.1 hours

Explanation:

The question says that, "A mobile advances at 20 m / s and travels a distance of 800 km. Determine the time in hours you use".

Given that,

Speed of a mobile, v = 20 m/s = 72 km/h

Distance, d = 800 km

We know that,

Speed = distance/time

So,

\(t=\dfrac{d}{v}\\\\t=\dfrac{800}{72}\\\\t=11.1\ h\)

So, it will take 11.1 hours.

Number of planes it passes going in the opposite direction, 13 planes

The planes' arrival and departure are scheduled in accordance with a sequential timetable.

13 aircraft are passed as it moves in the opposite direction.

The parameters listed are;

Every 30 minutes is the average number of departures for aeroplanes.

Flying time from LA to NY is 3 hours and 5 minutes.

how many aircraft it passes flying in the other direction.

We have the jet that took off 3 as it took off from New York.

NY is 5 minutes away from LA and hours distant.

Because the aeroplane is travelling in opposing directions, the relative

The speed of the aircraft is twice that of the other aircraft.

the moment after takeoff when the NY plane overtakes the lead aircraft

5 minutes + 2 = 2.5 minutes from LA.

The aeroplane passes the next aircraft two times after that.

faster or half as long, which is 30 minutes divided by 2 to equal 15 minutes.

3 hours 5 minutes = 185 minutes

We have an arithmetic progression with first term, a 2.5, common

difference 15, and nth term, a(n) = 185, which gives;

185 = 2.5 + (n-1).15

n = 185 - 2.5/15 + 1 = 79/6 = 13(1/6)

Given that the number of planes that the airplane passes are whole

number (discrete) values, we have;

The number of planes it passes going in the opposite direction, n = 13 planes

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Answer:

The wavelength of light is 68 nm

Explanation:

The center of gravity method for distribution warehouse location is likely to gravitate towards Location D with a shipment volume of 800 units.

Based on shipping quantities and their corresponding distances, a distribution warehouse's ideal location can be found using a methodology called the center of gravity method. To determine the center of gravity, it computes the weighted average of the volumes and distances. The location with the highest volume in this situation is Location D, with a shipment volume of 800 units.

The higher shipment volume at Location D would probably exert a stronger gravitational pull on the distribution warehouse location choice because the center of gravity technique takes both volume and distance into account. As a result, Location D is where the procedure is most likely to end up.

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Pressure, on the other hand, is defined as the force applied per unit area. It is a measure of how much force is distributed over a given surface area. Anything that causes a mass to accelerate is a force. The same property divided by the area on which it is applied is called pressure.

A force is defined as anything that causes a mass to accelerate. Forces can be applied to objects in various ways, such as pushing, pulling, or gravity acting upon them. When a force is exerted on an object, it can cause the object to change its velocity or direction of motion, resulting in acceleration.

Pressure, on the other hand, is defined as the force applied per unit area. It is a measure of how much force is distributed over a given surface area. Mathematically, pressure (P) is calculated by dividing the force (F) applied perpendicular to the surface by the area (A) on which the force is exerted, as expressed by the equation P = F/A.

For example, when a force is applied to a fluid (liquid or gas), the force is distributed over the area it acts upon, resulting in pressure. This concept is often used in fluid dynamics and engineering, where pressure is an important factor in understanding the behavior of fluids and designing systems that involve fluid flow.

Therefore, anything that causes a mass to accelerate is referred to as a force, and when that force is divided by the area on which it is applied, it is called pressure.

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Answer:  An effect of continental drift is causing tectonic plates resting upon the convecting mantle to move which results in natural disasters like earthquakes, volcanic eruptions, and more.

Answer:

Earthquakes are likely to occur along the San Andreas Fault.

Explanation:

Answer:

B on edgen

Explanation:

The water in pot X has more kinetic energy than the water in pot Y.

Answer:

the water in pot x has more kenetic energy.

Explanation:

not sure if its the answer. just found it on quizlet.

The new acceleration of the truck  for the same driving force is 21.5  m/s^2.

The definition of force in physics is: The push or pull on a massed object changes its velocity.

An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude. A spring balance can be used to calculate the Force. Newton is the SI unit of force.

Given that: A loaded truck can accelerate at 4.3m/s^2.

It loses its load so that it is only 0.2 as massive.

As force = mass × acceleration, the new acceleration of the truck for same driving force is =  (4.3 ÷ 0. 2) m/s^2

= 21.5  m/s^2

Hence, the new acceleration of the truck is 21.5  m/s^2.

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Answer:

precise

Explanation:

im pretty sure