What is the physical state of water at 250 degree centigrade
Answers
At 250 degrees Celsius, water is in the gaseous state, specifically as steam or water vapor.
Under normal atmospheric pressure, water boils and undergoes a phase transition from liquid to gas at 100 degrees Celsius. As the temperature increases beyond the boiling point, the water molecules gain enough energy to overcome intermolecular forces and transition into the gaseous state.
Therefore, at 250 degrees Celsius, water exists as a gas or steam rather than as a liquid.
The boiling point of water, where it transitions from liquid to gas, occurs at 100 degrees Celsius at standard atmospheric pressure (1 atmosphere or 101.3 kilopascals). At temperatures below the boiling point, water exists as a liquid.
Therefore, at 250 degrees Celsius, water is well above its boiling point. It would be in the form of a hot liquid rather than a gas. The high temperature causes the water molecules to have greater kinetic energy, resulting in increased movement and a higher average temperature of the liquid.
It's important to note that the state of water can change depending on the pressure. At higher pressures, the boiling point of water increases, and at lower pressures, it decreases.
However, under standard atmospheric pressure, water at 250 degrees Celsius would still remain in the liquid state.
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Related Questions
calculate the minimum tensile true fracture strain that a sheet metal should have in order to be bent to the following r/t ratios: (30 points)
Answers
The minimum tensile true fracture strain for this sheet metal to be bent to an r/t ratio of 10 is 13.93%.
To calculate the minimum tensile true fracture strain that a sheet metal should have in order to be bent to certain r/t ratios, we need to understand what these ratios mean.
The r/t ratio is the ratio of the bend radius (r) to the thickness (t) of the sheet metal. It is a measure of the degree of bending that can be achieved without cracking or breaking the material. Generally, the larger the r/t ratio, the easier it is to bend the material without causing damage.
To determine the minimum tensile true fracture strain, we need to consider the material's ductility, or its ability to deform under stress without breaking. The tensile true fracture strain is the amount of strain (or deformation) that the material can withstand before it breaks.
The minimum tensile true fracture strain that a sheet metal should have in order to be bent to certain r/t ratios can be calculated using the following equation:
εf = (2r/t) - ln(2r/t) - 1
Where:
εf = minimum tensile true fracture strain
r = bend radius
t = thickness
Let's look at some examples to see how this equation can be applied.
Example 1: A sheet metal with a thickness of 1 mm needs to be bent to an r/t ratio of 5. Calculate the minimum tensile true fracture strain.
Using the equation above, we can calculate:
εf = (2r/t) - ln(2r/t) - 1
εf = (2 x 5 x 1)/1 - ln(2 x 5 x 1)/1 - 1
εf = 8.62%
Therefore, the minimum tensile true fracture strain for this sheet metal to be bent to an r/t ratio of 5 is 8.62%.
Example 2: A sheet metal with a thickness of 0.5 mm needs to be bent to an r/t ratio of 10. Calculate the minimum tensile true fracture strain.
Using the equation above, we can calculate:
εf = (2r/t) - ln(2r/t) - 1
εf = (2 x 10 x 0.5)/0.5 - ln(2 x 10 x 0.5)/0.5 - 1
εf = 13.93%
In conclusion, the minimum tensile true fracture strain that a sheet metal should have in order to be bent to certain r/t ratios can be calculated using the equation εf = (2r/t) - ln(2r/t) - 1. This equation takes into account the bend radius, thickness, and ductility of the material to determine the maximum amount of deformation that can be achieved without causing damage.
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An object has a kinetic energy of 90 J and a mass of 30 kg how fast is the object moving?
Answers
Answer:
The speed of the object will be "2.4 m/s".
Explanation:
The given values are:
Kinetic energy,
K.E = 90 J
Mass,
m = 30 kg
Speed,
v = ?
As we know,
⇒ \(K.E=\frac{1}{2} (mass\times speed^2)\)
On substituting the values, we get
⇒ \(90=\frac{1}{2} (30\times v^2)\)
⇒ \(90=15\times v^2\)
⇒ \(v^2=\frac{90}{15}\)
⇒ \(v^2=6\)
⇒ \(v=\sqrt{6}\)
⇒ \(v=2.44 \ m/s\)
DC current is less than AC current
true\false
Answers
Answer:
False
Explanation:
.......................
Hope this help you
For your muscles to get stronger, or your body to get fit, you must work harder when exercising than when you are at rest.
Question 2 options:
Overload
Specificity
Progression
Regularity
Answers
Answer:
Overload
Explanation:
If an element forms a 2+ ion in which group of the periodic table would you expect to find it
Answers
So group 2:)
How do fossils provide evidence of continental drift?
A. Similar fossils are found all over the world.
B. The same fossils were found on land and under the ocean.
C. The same fossils were found on different continents.
D. The fossils show a record of climate change.
Answers
The direction of revolution in the plane of the Solar System was determined by
a. the plane of the galaxy in which the Solar System sits.
b. the direction of the gravitational force within the original cloud.
c. the direction of rotation of the original cloud.
d. the amount of material in the original cloud.
Answers
The direction of revolution in the plane of the Solar System was determined by the direction of rotation of the original cloud. The correct option is c.
The solar system was created from a cloud of gas and dust. According to the nebular hypothesis, the sun and planets were formed from a single rotating cloud of dust and gas. The sun was created at the center of the cloud, while the planets were created in orbit around it.
The plane of the solar system's planets is determined by the rotation of the original cloud. The original cloud that formed the solar system was spinning in a specific direction, which determined the direction of revolution in the plane of the solar system. Therefore, the answer is option c. the direction of rotation of the original cloud.
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What is the speed of the 0.100 kgkg sphere when it has moved 0.400 mm to the right from its initial position
Answers
Answer:The question does not provide enough information to determine the speed of the sphere. To calculate the speed, we would need to know either the time it took for the sphere to move 0.400 mm, or the acceleration of the sphere.
Explanation:We need more information to answer the question correctly
To calculate the speed of the 0.100 kg sphere, we need to use the formula for speed, which is speed = distance / time. We are given that the sphere has moved 0.400 mm to the right from its initial position.
To calculate the speed of the 0.100 kg sphere after it has moved 0.400 mm to the right from its initial position, we need more information such as the force acting on the sphere or the time taken to move that distance.
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what does interval training involve
Answers
Answer:
Interval training is simply alternating short bursts (about 30 seconds) of intense activity with longer intervals (about 1 to 2 minutes) of less intense activity. For instance, if your exercise is walking and you're in good shape, you might add short bursts of jogging into your regular brisk walks.
Explanation:
Answer:
Interval training is simply alternating short bursts (about 30 seconds) of intense activity with longer intervals (about 1 to 2 minutes) of less intense activity. For instance, if your exercise is walking and you're in good shape, you might add short bursts of jogging into your regular brisk walks
Explanation:
henry bought 1/4 pound of screws and 2/5 pounds of nails to build a skate board ramp what is the total of the screws and nAils
Answers
The total weight of screws and nails that Henry bought to build the skate board ramp is 13/20 pounds.
To find the total weight of screws and nails, we need to add the weight of the screws and the weight of the nails.
Henry bought 1/4 pound of screws and 2/5 pounds of nails, so
Total weight = 1/4 + 2/5 pounds
Total weight = (1 x 5)/(4 x 5) + (2 x 4)/(5 x 4) pounds
Total weight = (5/20) + (8/20) pounds
Now that both fractions have the same denominator, we can add them together,
Total weight = 13/20 pounds
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--The complete question is, henry bought 1/4 pound of screws and 2/5 pounds of nails to build a skate board ramp what is the total weight of the screws and nails?--
2.Calcular el flujo magnético a través de una bobina con 460 espiras de 2 m² de superficie cuyo eje forma un ángulo de 60° con un campo magnético uniforme de 2 .
Answers
El flujo magnético a través de una bobina con 460 vueltas de superficie de 2 m² cuyo eje forma un ángulo de 60 ° con un campo magnético uniforme de 2 es 779.42 Weber
La fórmula para calcular el flujo magnético a través de una bobina se expresa como:
\(\phi = NABsin\theta\) dónde:
N es el número de vueltas A es el área de la sección transversal B es el campo magnético es el ángulo formado con el campo uniforme
Dados los siguientes parámetros
N = 450 turns
A = 2 m²
B = 2
\(\theta\) = 60degrees
Sustituya los parámetros dados en la fórmula como se muestra:
\(\phi=450 \times 2\times 2sin60^0\\\phi = 900sin60^0\\\phi = 900(0.8660)\\\phi=779.42Weber\)
El flujo magnético a través de una bobina con 460 vueltas de superficie de 2 m² cuyo eje forma un ángulo de 60 ° con un campo magnético uniforme de 2 es 779.42 Weber
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Ok soo idk what question to ask but one of my friends said tht she was dressing as Harley Quinn and she said i should dress as her too but then i said no i dont rlly dress up of those kind of people but then she started to flip out because i couldnt dress as her?? Should I tell her that not all people can dress the same even if they want to or not? What should I say so she can stop saying things that are rude just bc she is mad and thats not my fault??
Answers
Answer:
You should tell her in a nice way that that's just not your style and if she doesnt accept that then maybe you should just not talk to her for a while and let her cool down
Explanation:
Hope this helps
Help me pretty please
Answers
Answer:a
Explanation:
Electromagnetic (em) radiation penetrates the atmosphere of earth at what portions of the electromagnetic spectrum?
Answers
Longwave radiation is the name given to the infrared component of the spectrum of radiation that Earth emits; its usual wavelengths range from 4 to 30 micrometers (0.0002 to 0.001 inch).
The electromagnetic spectrum is made up of radio waves, microwaves, infrared light, visible light, ultraviolet light, X-rays, and gamma rays, among other types of electromagnetic radiation. The earth's atmosphere blocks out the majority of electromagnetic radiation from space, preventing most of it from reaching the planet's surface.
Visible light is electromagnetic radiation with wavelengths between 400 and 700 nm. A portion of the electromagnetic spectrum that humans can see with our eyes is the visible light or spectrum. The outside of Earth. Effectively, visible light can pass through Earth's atmosphere.
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A measure of a system's disorder or how much the energy has dispersed within the system
a. entropy
b. kinetic energy
c. potential energy
d. heat
Answers
A measure of a system's disorder or how much the energy has dispersed within the system is known as entropy (Option A).
Entropy is a measure of randomness, disorder, or chaos in a system. It is a thermodynamic function that measures the unavailability of a system's thermal energy for conversion into mechanical work.
The entropy of a system is proportional to the amount of energy that is transferred to it as heat. It is a thermodynamic state variable that represents the degree of randomness or disorder of a system. The higher the entropy of a system, the less ordered and more disordered the system is.
Hence, the correct answer is Option A,
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A stretched string, clamped at its ends, vibrates with a fixed wavelength at a particular frequency. To double that frequency, one can change the string tension by a factor of
Answers
To double the frequency of a vibrating stretched string with a fixed wavelength, the string tension needs to be increased by a factor of four (4).
When a string is under tension and clamped at its ends, it can vibrate at specific frequencies determined by its tension, mass per unit length, and the length of the string. The frequency of vibration is inversely proportional to the wavelength of the wave produced on the string.
In this scenario, we want to double the frequency of vibration while keeping the wavelength constant. Since frequency is directly proportional to the square root of tension, we need to increase the tension by a certain factor to achieve our desired frequency.
Using the equation for frequency in terms of tension and other variables, we can deduce that to double the frequency, the tension must be increased by a factor of four (4). This means that the new tension will be four times the original tension.
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Calculate the buoyant force of air (density 1.20 kg/m3 ) on a spherical party balloon that has a radius of 17.0 cm .
Answers
The buoyant force of air will be 246.25 N.Buoyancy force is the multiplication of the density, gravity, and volume.
What is buoyancy force?A fluid exerts an upward force against the weight of a partly or completely submerged item. The weight of the overlying fluid causes pressure to rise with depth in a column of fluid.
The buoyancy force is found by the formula as;
\(\rm F_B = \rho g V\)
\(\rm \rho\) is the density
g is the acceleration due to gravity
V is the volume
\(\rm F_B\) is the buoyancy force
The volume of the spherical balloon is;]
\(\rm V= \frac{4}{3} \pi r^3 \\\\ \rm V= \frac{4}{3} \times 3.14 (17.0 \times 10^{-2})^3 \\\\ V=0.2056 \ m^3\)
The buoyancy force is found by the formula as;
\(\rm F_B = \rho g V \\\\ \rm F_B = 1.20 \times 9.81 \times 0.2056 \\\\F_B = 246.25 \ N\)
Hence the buoyant force of air will be 246.25 N.
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Question:
the distance of the car can move by velocity 15 m/s for time 5s is :
Physics
Answers
Answer:
c) 2.05
Explanation:
at what point in its trajectory does a batted baseball have its minimum speed
Answers
Answer: If air drag can be neglected, how does this compare with the horizontal component of its velocity at other points? Minimum speed occurs at the top, which is the same as the horizontal component of velocity anywhere along the path.
Explanation:
Answer: At the highest point in the trajectory the ball will have the minimum speed as the vertical component becomes zero. The horizontal component of the velocity never changes as there is no force acting in horizontal direction.
Explanation:
Hope this helps.
Car A has twice the mass of Car B; both travel at the same speed. Compared to Car B. Car A has:
o the same the energy
o four times the energy
Otwice the energy
one-half the energy
one-fourth the energy
Answers
Answer:
Car A has twice the energy of car B.
Explanation:
The kinetic energy of an object is given by :
\(K=\dfrac{1}{2}mv^2\)
Where
m is the mass
v is the speed of the object
Car A has twice the mass of Car B. Both travel at the same speed i.e.
\(m_A=2m_B\)
So,
\(\dfrac{K_A}{K_B}=\dfrac{(1/2)m_Av^2}{(1/2)m_Bv^2}\\\\=\dfrac{2m_B}{m_B}\\\\\dfrac{K_A}{K_B}=2\\\\K_A=2\times K_B\)
So, the kinetic energy of car A is twice of the kinetic energy of car B.
Answer:
Car A has twice the energy
Explanation:
4. in simple harmonic motion, the displacement is maximum when the: a. magnitude of momentum is maximum. b. kinetic energy is maximum. c. acceleration is zero. 1. speed is zero. speed is maximum.
Answers
The speed of the object is zero when the displacement of the object is maximum, which occurs when the velocity of the object is at its maximum value.
The displacement is maximum when the magnitude of the momentum is maximum.
In simple harmonic motion, an object oscillates about its equilibrium position with a constant amplitude. The displacement of the object from its equilibrium position is given by the equation:
displacement = amplitude * sin(ωt + phase)
where amplitude is the maximum distance from equilibrium, ω is the angular frequency of the oscillation, t is time, and phase is the initial phase of the oscillation.
The magnitude of the momentum of the object is given by the equation:
momentum = mass * velocity
where mass is the mass of the object, velocity is its velocity, and ω is the angular frequency of the oscillation.
Therefore, the displacement of the object is maximum when the magnitude of the momentum is also maximum, which occurs when the velocity of the object is at its maximum value.
The kinetic energy of the object is maximum when the displacement is maximum.
In simple harmonic motion, the kinetic energy of the object is given by the equation:
kinetic energy = 1/2 * m *\(velocity^2\)
where m is the mass of the object, velocity is its velocity, and ω is the angular frequency of the oscillation.
Therefore, the kinetic energy of the object is maximum when the displacement of the object is maximum, which occurs when the velocity of the object is at its maximum value.
The acceleration of the object is zero when the displacement is maximum.
In simple harmonic motion, the acceleration of the object is given by the equation:
acceleration = -ω * amplitude * sin(ωt + phase)
where ω is the angular frequency of the oscillation, amplitude is the maximum distance from equilibrium, t is time, and phase is the initial phase of the oscillation.
Therefore, the acceleration of the object is zero when the displacement of the object is maximum, which occurs when the velocity of the object is at its maximum value.
The speed of the object is zero when the displacement is maximum.
In simple harmonic motion, the speed of the object is given by the equation:
speed = amplitude * cos(ωt + phase)
where amplitude is the maximum distance from equilibrium, ω is the angular frequency of the oscillation, t is time, and phase is the initial phase of the oscillation.
Therefore, the speed of the object is zero when the displacement of the object is maximum, which occurs when the velocity of the object is at its maximum value.
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can a fire have shadow?if it can how?
Answers
Answer:
Explanation:
Note that fire can have a shadow not because the incoming light beam scatters off the light in the flame. On the fundamental level, one beam of light cannot directly interact with another beam of light. ... Fires can have shadows because they contain hot air and soot, and not because they contain light.
Answer:
it can,t for a fire creates light so it destroyed its shadow
what is 6.39 times 10 to the 23rd power
Answers
Answer:
6.39*(10 to the 23rd)=
6.39*10²³
truck covers 43.7 m in 6.8 s while smoothly slowing down to a final speed of 2.7 m/s. find its original speed. answer in units of m/s.
Answers
The original speed of the truck would 0.7 m/s covering 43.7m in 6.8s
What is velocity, for instance?Velocity can be defined as the rate at which something moves in a specific direction. as the speed of a car driving north on a highway or the pace at which a rocket takes off. The scalar indicates that the velocity vector's absolute value magnitude will always equal the motion's speed.
Can velocity go backwards?The change in position (displacement) of an object over a period of time is referred to as its velocity. Speed can only be positive, whereas velocity can be either positive or negative because it combines both speed and direction.
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An astronaut (86 kg) on a spacewalk (outside of the shuttle) throws Space Cat (4.8
kg) at a speed of 25 m/s, relative to the shuttle, at an angle of 40 degrees above horizontal
away from himself. What is the speed of the astronaut after launching our feline
superhero?
Answers
The speed of the astronaut after launching our feline superhero is 1.4 m/s.
What is the speed of the astronaut?
The speed of the astronaut is determined from the principle of conservation of linear momentum.
Pi = Pf
where;
Pi is the momentum of the astronautPf is the momentum of the cat86vₓ = 4.8 x (25 cos40)
86vₓ = 91.9
vₓ = 91.9 / 86
vₓ = 1.07 m/s
The vertical component of the speed;
86vy = 4.8 x (25 sin40)
86vy = 77.1
vy = 77.1 / 86
vy = 0.9 m/s
The resultant speed of the astronaut is calculated as;
v = √ ( vₓ² + vy² )
v = √ ( 1.07² + 0.9² )
v = 1.4 m/s
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um.. i need help ⚆ _ ⚆
What information can you infer from the Lewis structure diagram shown below?
A. Boron has six valence electrons.
B. Oxygen has six valence electrons.
C. Boron has five valence electrons.
D. Oxygen has five valence electrons.
Answers
Answer:
D.Oxygen has five valence electrons
A sportscar has a mass of 1500 kg and accelerates at 5 meters per second squared. What is the magnitude of the force acting on the sportscar?
Answers
Answer:
7500 Newtons
Explanation:
Mass of the sportscar= 1500 kg
Acceleration of the sportscar= 5m/s^2
Hence, let the Force acting on it be F
\(We\ know\ that,\\Force=Mass*Acceleration\\F=ma\\\\Here,\\F=1500*5\\=7500 kg m/s^2\ or\ 7500\ Newtons\)
How do vaccines provide immunity
Answers
Answer:
Vaccines contain weakened or inactive parts of a particular organism (antigen) that triggers an immune response within the body. Newer vaccines contain the blueprint for producing antigens rather than the antigen itself.
Answer: They give you a portion of the thing its fighting so it gets your cells use to it so they can fight it off easily
Explanation:
Suppose the sphere is positively charged. Is it attracted to, repelled by, or not affected by the magnet?.
Answers
When a positively charged sphere is brought near the north pole of a magnet, the positively charged sphere will be attracted to the magnet.
Positively charged objectWhen a positively charged object is brought near the north pole of a magnet, the positively charged object will be attracted to the magnet beacuse of polarity.
Positively charged metals have the tendency to show the polarization of charges.
Thus, when a positively charged sphere is brought near the north pole of a magnet, the positively charged sphere will be attracted to the magnet. Also, if the south pole is brought near the sphere, the positively charged sphere will repel the magnet.
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pls help answer embed
Answers
Answer:
C = 1.01
Explanation:
Given that,
Mass, m = 75 kg
The terminal velocity of the mass, \(v_t=60\ m/s\)
Area of cross section, \(A=0.33\ m^2\)
We need to find the drag coefficient. At terminal velocity, the weight is balanced by the drag on the object. So,
Weight of the object = drag force
R = W
or
\(\dfrac{1}{2}\rho CAv_t^2=mg\)
Where
\(\rho\) is the density of air = 1.225 kg/m³
C is drag coefficient
So,
\(C=\dfrac{2mg}{\rho Av_t^2}\\\\C=\dfrac{2\times 75\times 9.8}{1.225\times 0.33\times (60)^2}\\\\C=1.01\)
So, the drag coefficient is 1.01.