When water vapor condenses to a liquid a. it transfers heat to the surroundings. b.it absorbs energy from the surroundings c. its temperature drops sharply. d. its temperature rises slightly.
Answers
a. When water vapor condenses to a liquid, it transfers heat to the surroundings.
This is because the process of condensation involves the release of heat energy, which is transferred from the water vapor to the surroundings. This heat transfer causes the temperature of the surroundings to increase slightly, and it is why you may feel warm and humid in a room with a lot of condensing water vapor, such as in a bathroom after a hot shower. The release of heat energy during condensation is also what causes clouds to form in the atmosphere, as water vapor condenses around particles in the air, releasing heat energy and forming droplets of liquid water.
Condensation is a physical process in which a gas or vapor transitions into a liquid or solid state. This occurs when the temperature of the gas or vapor is lowered below its dew point, which is the temperature at which the gas or vapor begins to condense.
When a gas or vapor condenses, it releases heat energy to its surroundings, as the energy that was previously holding the gas or vapor in a gaseous state is released. This heat energy transfer can cause the surrounding environment to warm up slightly.
Condensation is an important process in the water cycle, where it plays a major role in the formation of clouds, rain, and other forms of precipitation. When water vapor in the atmosphere cools and reaches its dew point, it condenses into tiny droplets, forming clouds. These droplets can then grow and combine until they become heavy enough to fall to the ground as precipitation, such as rain or snow.
Condensation is also an important process in various industrial and scientific applications, such as in refrigeration, where the compression and expansion of gases leads to their condensation and evaporation, respectively.
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Related Questions
A marble was sent down a ramp into a solo cup. The first time the solo cup moved 20 cm. The second time the solo cup moved 24 cm. The third time the cup moved 16 cm. What is the average movement of the cup?
Answers
Answer:
20
Explanation:
The average of the movement is 20+24+16/2 = 20cm
Answer:
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Explanation:
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If someone is driving 100 miles in 60 minutes then drives 150 miles in 100 minutes west, what is his acceleration rate.
Answers
Answer:
his acceleration rate is -0.00186 m/s²
Explanation:
Given;
initial position of the car, x₀ = 100 miles = 160, 900 m ( 1 mile = 1609 m)
time of motion, t₀ = 60 minutes = 60 mins x 60 s = 3,600 s
final position of the car, x₁ = 150 miles = 241,350 m
time of motion, t₁ = 100 minutes = 100 mins x 60 s = 6,000 s
The initial velocity is calculated as;
u = 160, 900 m / 3,600 s
u = 44.694 m/s
The final velocity is calculated as;
v = 241,350 m / 6,000 s
v = 40.225 m/s
The acceleration is calculated as;
\(a = \frac{\Delta V}{\Delta t} = \frac{v- u}{t_1 - t_ 0} = \frac{40.225 - 44.694}{6000-3600} = -0.00186 \ m/s^2\\\\\)
Therefore, his acceleration rate is -0.00186 m/s²
Multiple Choice
dentify the choice that best completes the statement or answers the question. (1 point each)
1) The variable plotted on the vertical or y-axis is called the
A) dependent variable
B) independent variable
C) variable with the largest range
variable with the smallest range
D)
Answers
Answer:
A
Explanation:
because you usually have a function such as y = 2 x^2 +3x + 6
or y = 3x -12 or similar .....y DEPENDS on what 'x' is....
When you are standing in a subway train and the train suddenly stops but your body continues to move forward. Which one of Newton's laws is this?
1st law
2nd law
3rd law
4th law
Answers
Answer:
A. 1st law.
Explanation:
Newton's first law of motion states that, an object or body will continue to be at rest or experience a uniform motion in a straight line at constant speed provided there's no action of an external force. Thus, unless compelled to change its state by an external force, a body will continue to be at rest or experience a uniform motion in a straight line.
The Newton's first law of motion is also known as the law of inertia; which is the tendency of a body to be at rest unless acted upon by an external force.
In this scenario, you are standing in a subway train and the train suddenly stops but your body continues to move forward. This is in accordance with Newton's first law of motion.
Hence, the sudden stoppage of the train generates a force which acts on the body thereby causing the passenger to tip or move forward.
Question:
A 385 kg car is parked on a 10.0-degree inclined road with the handbrake disengaged. With what acceleration would the car slide down, assuming the road is frictionless?
Weight:
When an object is placed on an inclined surface then its weight acts downwards. For ease of calculations, we can resolve the weight vector into the components, along the plane, and perpendicular to the plane.
The perpendicular component is balanced by the normal reaction from the plane.
Answers
The acceleration with which the car would slide down a frictionless 10.0-degree inclined road is 9.8 m/s^2.
The weight of the car acts downwards, and when placed on an inclined surface, we can resolve it into two components - one along the plane and the other perpendicular to the plane.
The component perpendicular to the plane is balanced by the normal reaction from the plane. The component along the plane is given by the equation W * sin(θ), where W is the weight of the object and θ is the angle of inclination.
In this case, the weight of the car is 385 kg, and the angle of inclination is 10.0 degrees, so W * sin(10) = 385 * sin(10) = 63.4 kg. This is the component of the weight acting along the plane.
Since the road is frictionless, the only force acting on the car is its weight along the plane, and this force will cause the car to accelerate downwards. Using Newton's second law, we can calculate the acceleration as follows:
F = ma, where F is the force acting on the car, m is its mass, and a is its acceleration.
Since F = W * sin(θ), substituting the values we have,
a = F / m = (63.4 kg) / (385 kg) = 9.8 m/s^2.
So, the acceleration with which the car would slide down the frictionless 10.0-degree inclined road is 9.8 m/s^2.
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ferromagnetic materials can be magnetized more easily than other materials because their magnetic domains can be generally aligned.
Answers
Ferromagnetic materials can be magnetized more easily than other materials due to their ability to have their magnetic domains aligned. This property allows for a stronger and more pronounced magnetic effect compared to non-ferromagnetic materials.
Ferromagnetic materials, such as iron, nickel, and cobalt, have a unique property called ferromagnetism, which allows them to exhibit strong magnetic behavior. One of the key factors contributing to this property is the presence of magnetic domains within the material. Magnetic domains are regions within the material where the magnetic moments of individual atoms align in the same direction.
In the absence of an external magnetic field, the magnetic domains in ferromagnetic materials are randomly oriented, resulting in a net magnetic field of zero. However, when an external magnetic field is
applied, the domains can align in the direction of the field, resulting in a magnetized state.
What sets ferromagnetic materials apart from other materials is their ability to have their magnetic domains easily aligned. This means that the material can be magnetized more easily and exhibit a stronger magnetic effect. Once the external magnetic field is removed, the ferromagnetic material retains some degree of magnetization due to the aligned domains.
This characteristic of ferromagnetic materials makes them highly useful in various applications, including electromagnets, transformers, and magnetic storage devices.
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A sound signal traveling underwater has a frequency of 230 hertz. The speed of sound under water is 1. 45 × 103 meters/second. What is the wavelength of the sound signal? A. 6. 3 meters B. 2. 3 meters C. 3. 0 meters D. 1. 2 meters E. 9. 3 meters.
Answers
Answer:
A.6.3
Explanation:
Although the CFC is non poisonous, it shows its toxicity when it reaches the stratosphere layer of the atmosphere. How?
Answers
The toxicity of CFCs is due to their ability to reacts with the ozone molecules found in the stratosphere resulting in the depletion of the ozone layer.
How does CFC produce toxicity?CFCs are the short name or acronyms for the chemicals known as chlorofluorocarbons.
These are chemicals which have been used as refrigerants in the past because of their non-toxicity as well other useful properties which makes them good as refrigerants.
However, despite being non-toxic, when CFCs are released into the atmosphere and reach the stratosphere layer of the atmosphere, they have been found to be toxic. Their toxicity is due to their ability to reacts with the ozone molecules found in the stratosphere.
This reaction with ozone molecules in the ozone layer results in the depletion of the ozone layer.
In conclusion, CFCS are chemicals which are used as refrigerants. The are non-toxic but become toxic by degrading the ozone layer of the atmosphere.
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Find the density of a cylinder in kgm-3 if the diameter is 2.3 and the thickness is 1.6
Answers
The density of the cylinder is (mass of the cylinder) / (6.65 cubic unit).
What is density?
The density of an object is the ratio of mass to volume of an object.
Density = mass (kg) / volume (m³)
The unit of density is kilogram per meter cube (kg/m³).
Volume of the cylinderThe volume of the cylinder is calculated ad follows;
V = Ah
where;
A is the surface areah is the thicknessV = (πd²/4)h
V = (π x 2.3²/4) x 1.6
V = 6.65 cubic unit
Density of the cylinderDensity = mass of the cylinder / 6.65 cubic unit
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In the image below, a free-body diagram represents the forces of several vehicles driving across a bridge. Assume that the bridge is in statio equilibrium and that it has zero weight, and solve for the unknown reaction force
A. 10,800 N
B. 65,200 N
C. 120,200 N
D. 53,400 N
Answers
Answer:
The answer is "57,400 N".
Explanation:
\(\Sigma F_y=0 \ \ \ \ \ \ \text{static equilibrium}\\\\\to 121,200+R=17800+150,000+10800\\\\R=57,400\ N\)
The answer is 57,400 N because the choices are wrong.
What is the low end of the range of surface temperature for blue white stars
Answers
B 10,000 - 30,000 K Blue-white stars
A 7,500 - 10,000 K White stars
F 6,000 - 7,500 K Yellow-white stars
G 5,000 - 6,000 K Yellow stars (like the Sun)
The lowest temperature stars are red while the hottest stars are blue. Astronomers are able to measure the temperatures of the surfaces of stars by comparing their spectra to the spectrum of a black body.
what is the difference between a partial and total lunar eclipse?
Answers
Answer:
During a total lunar eclipse, the moon and sun are on the exact opposite sides of the Earth, leaving the moon entirely in the Earth's shadow. During a partial lunar eclipse, only part of the moon is in the Earth's shadow.
Explanation:
A train travels 478 km southwest along a straight
stretch. If the train is displaced south by 42 km, what is
the train's displacement to the west?
Answers
The displacement of the train to the west is 478 km.
What is the train's displacement to the west?To find the displacement to the west, we need to use the Pythagorean theorem, which states that in a right triangle, the square of the length of the hypotenuse (the straight-line distance from the starting point to the ending point) is equal to the sum of the squares of the lengths of the other two sides.
Let's call the displacement to the west "x". Then, the displacement to the south is 42 km, and the total displacement (the distance traveled by the train) is 478 km. Using the Pythagorean theorem, we can write the following equation:
x^2 + 42^2 = 478^2
Expanding the squares:
x^2 + 42^2 = 478^2
x^2 + 1764 = 229284
x^2 = 227620
x = 478 km
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Derive an Expression for elastic potential energy of a spring
Answers
Answer:
spring force = -K × x , where X is elongation or compression in the spring. ( -) sigh shows that the spring force is opposite to the applied force to cause extension.
Potential energy = work done by spring force = integration of Force.
integrate the force (-K × x) over distance 0 to x .
U = 1/2 K × X^2 ( for elongation)
U = -1/2 × K × X^2 ( for compression)
1) A small squishy ball is thrown against the side of a large cube of concrete. While the objects are in contact with each other, which experiences the larger force? a. The small squishy ball exerts a larger force on the large cube of concrete b. The large cube of concrete exerts a larger force on the small squishy ball C. Neither object exerts a force on the other while they are in contact. d. The small squishy ball and the large cube of concrete exert equal forces on each other.
Answers
The large concrete cube exerts more pressure on the tiny squishy ball.
What exactly is a force?It can be characterized as an interaction that affects an object's motion if there is no opposition. The simple definition of force, on the other hand, is the push or pull that any object receives. Force is a vector quantity, hence it has a magnitude and a direction.
What qualifies it as a force?However, gravity is a force in a more general sense since it symbolizes the interaction that takes place when two masses are close to one another. Gravitational effects are fundamentally caused by the stretching of spacetime and the motion of things through the stretched spacetime. The effect, nevertheless, seems to be the result of using force.
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An object of mass 10 kg has a momentum of 15 kg m/s. Find the average force required to accelerate the object to 10 m/s over 20 seconds.
Answers
Answer:
Force = 4.25 Newton
Explanation:
Given the following data;
Mass = 10 kg
Momentum = 15 Kgm/s
Time, t = 20 seconds
Final velocity, V = 10 m/s
To find the average force required;
First of all, we would determine the initial velocity of the object.
Momentum = mass * velocity
15 = 10 * velocity
Velocity = 15/10
Velocity = 1.5 m/s
Next, we would determine the acceleration of the object by using the first equation of motion;
V = U + at
10 = 1.5 + a*20
10 - 1.5 = 20a
8.5 = 20a
Acceleration, a = 8.5/20
Acceleration, a = 0.425 m/s²
Lastly, we would find the average force by using the formula;
Force = mass * acceleration
Force = 10 * 0.425
Force = 4.25 Newton
I need to find out number 51.Can you help me ?
Answers
v= constant
mass of the cart = 1.5 kg
m2 (added)= 7.5 kg
how many strings of eight english letters are there that contain no vowels, if letters can be repeated?
Answers
There are 20,971,520 strings of eight English letters that contain no vowels when letters can be repeated.To calculate the number of strings of eight English letters that contain no vowels.
we need to consider the total number of possible choices for each letter position.
In the English alphabet, there are 26 letters, including five vowels (A, E, I, O, U) and 21 consonants.
Since we want to create strings without vowels, we can choose any of the 21 consonants for each position in the string.
For each of the eight positions in the string, there are 21 choices (consonants) available.
Therefore, the total number of strings can be calculated as:
Total number of strings = Number of choices for each position ^ Number of positions
Total number of strings = 21^8 = 20,971,520
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why does toilet seats stay cold even when the room temperature is warm?
Answers
Answer:
lol While plastic and wood aren't great thermal conductors, they conduct heat faster than air does. Even if the toilet seat is at the same temperature as the air around it, it will feel colder to your but t because heat will move from your skin to the seat at a faster pace Air just doesn't conduct heat very quickly.
Explanation:
What is the total work wfric done on the block by the force of friction as the block moves a distance l up the incline?.
Answers
The total work work done on a block by the force of friction is the force of friction times the distance traveled times the cosine of the angle between the friction force and displacement
Work done is measured in joules (J). It is distance moved along the line of action of the force is measured in metres (m)
What is work done?Work is said to be done when a force acts upon an object to cause a displacement.
Calculating the work done on an object
work done = force × distance
Where;
Work done is measured in joules (J)
Force is measured in newtons (N)
Distance is measured in meters (m)
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Action-reaction forces are always the same ____ but are in opposite ____
Answers
Answer:
Magnitude, direction
Explanation:
Magnitude, direction
What happened to the speed of light if it travels from air into glass?
A: it speeds up
B: it stays the same
C: it slows down
Answers
Answer:
a
Explanation:
Answer:
It slows down .In regular circumstances, the speed of light (c^2) is the same. Photons, or light particles act as both a wave and a particle, (wave-particle duality),
Explanation:
If the distance between the first crest and the forth crest is 30 cm so the wave length is.....
a. 5 cm b. 10 cm c. 20 cm d. 40 cm
Answers
Answer:
I think letter A
Explanation:
Hope it helps mwehehe
what is the wavelength (in m) of the waves you create in a swimming pool if you splash your hand at a rate of 4.00 hz and the waves propagate at 0.700 m/s?
Answers
the wavelength of the waves created in the swimming pool would be 0.175 m. Waves are characterized by their wavelength, which is the distance between two consecutive points in the wave that are in phase. When waves propagate, they transfer energy from one point to another without displacing any matter. The frequency of the waves refers to the number of waves passing a given point in one second.
The wavelength of the waves created in a swimming pool when you splash your hand at a rate of 4.00 Hz and the waves propagate at 0.700 m/s can be calculated using the formula:
wavelength = velocity / frequency
Substituting the given values, we get:
wavelength = 0.700 m/s / 4.00 Hz
Solving for wavelength, we get:
wavelength = 0.175 m
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as water begins to boil in the kettle the hotter water at the bottom of the kettle closest to the stove begins to rise and the cooler water a above sinks warms. why does the occur?
Answers
Answer:
condensation?
Explanation:
this occurs because the hotter water is atoms are expanding and becoming lighter or in other words less dense but the cold water is still the same and it’s not expending instead its atoms are closer together because it’s cold so it’s denser or heavier then the hot water so the denser cold water would sink and the lighter hot water should float on top of the cold water
SUMMARY
SO ITS MOSTLY BECAUSE OF THE DIFFERENCE IN DENSITY IN THE HOT AND COLD WATER WITH THE HOT WATER BEING LESS DENSE THEN THE COLD SO IT FLOATS
The SI unit of power is???
Answers
Answer:
Watts or Wt's
Explanation:Power is the measure of how much energy or work is used per unit time. "Power" = "energy"/"time" The SI unit of power is joules per second (J/s) or Watts (W). In summary, "1 W = 1 J/s = 1 N·m/s = 1 kg·m"^2·"s"^"-3"
What power is emitted by a circuit with a 9.00 volt battery and a 50.0 Ohm resistor? A)450 W B)0.00222 W C)1.62 W D)5.55 W E)0.180 W
Answers
Given,
Voltage, V=9 V
Resistor, R=50.0 ohm
To find
The power emitted by the battery.
Explanation
The power is:
\(\begin{gathered} P=\frac{V^2}{R} \\ \Rightarrow P=\frac{9^2}{50} \\ \Rightarrow P=1.62\text{ W} \end{gathered}\)Conclusion
The power is: C.1.62W
Explain why a steel boat floats on water but a steel block does not
Answers
A piece of steel sinks in water because steel is denser than water. However, a steel ship is a hollow object made of steel and contains a lot of air in it. Due to presence of a lot of air in it, the average density of the ship becomes less than the density of water. Hence a ship floats in water.
Answer:
Cause its a steel block
Explanation:
thats like putting a brick in the water and expecting it to float
Q.7. For a system with a transfer function of G(s)=- co² s² +2a+w² if the natural frequency is 0.5 and the damping ratio is 1.3, which of the following statements is correct regarding the unit step response of the system?
O A) Damped
O B) Undamped
O C) Underdamped
O D) Crittically Damped
O E) Overdamped
Answers
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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what factor does not determine how much gravitational potential energy is in an object-earth system?
Answers
The factor that does not determine how much gravitational potential energy is in an object-earth system is the object's mass.
An object-earth system is a system in which an object interacts with the earth by exerting a force of attraction. The object's energy is derived from the work done by gravitational forces when the object is moved away from the earth's surface.
An object in an object-earth system's gravitational potential energy is the work done by gravitational forces on the object when it is moved from a lower position to a higher one in the object-earth system. The factor that does not determine how much gravitational potential energy is in an object-earth system is the object's mass. The gravitational potential energy of an object in the earth-object system is determined by the distance between the object and the earth's surface. The gravitational potential energy of an object increases as the distance between it and the earth's surface increases.
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