True/False? The entropy of steam will (increase, decrease, remain the same) as it flows through an actual adiabatic turbine.
Answers
The given statement "The entropy of steam will increase as it flows through an actual adiabatic turbine." is True. This is because an adiabatic process is one where there is no heat transfer between the system and the surroundings.
In the case of an adiabatic turbine, the steam is expanding and doing work on the turbine blades, causing a decrease in its internal energy. As a result, the temperature of the steam drops, and its entropy increases.
The increase in entropy is a measure of the degree of disorder or randomness in the system. In this case, the steam molecules are becoming more disordered as they lose energy and move randomly in different directions. This is a natural consequence of the second law of thermodynamics, which states that the total entropy of an isolated system always increases over time.
Therefore, the statement "The entropy of steam will increase as it flows through an actual adiabatic turbine" is true. It is important to note that this increase in entropy is necessary for the efficient operation of the turbine and the generation of useful work.
For more such questions on Adiabatic turbine.
https://brainly.com/question/13002309#
#SPJ11
Related Questions
45 . when you are in a line of traffic that is crossing a railroad track that has no signals or gates:
Answers
When you are in a line of traffic that is crossing a railroad track that has no signals or gates, it is important to exercise caution and follow the rules of the road.
First, you must stop your vehicle at least 15 feet away from the nearest rail and look both ways before proceeding. Make sure that there is enough space on the other side of the track for your vehicle to clear the crossing completely. Never stop, shift gears, or change lanes while crossing the track. It is also important to avoid getting trapped on the track in case of an emergency or breakdown. Remember that trains can approach quickly and silently, so always be aware of your surroundings and stay alert.
Learn more about railroad track: https://brainly.com/question/7282920
#SPJ11
88 L + 120 dL = _____________ L?
Answers
Answer:
100 L
Explanation:
10 dL = 1 L
A car accelerates from west to east. In which direction is the force it applies on the road? What is the direction of the force applied by the road on the car?
Answers
Answer:
The car applies a force in the opposite direction it is moving to. That is; from east to west.
Explanation:
This obeys Newtons third law of motion.
How is the electroscope an example of a conductor?
Answers
Answer: Its in explanation.
Explanation:
Because the electroscope is made from conducting material, some of its electrons move up to the top of the electroscope to be near the charged rod when the rod is held close.
Answer:
Because it is made up of conducting materials
X-rays with wavelengths of 0.95 nm are detected at a scattering angle of straight theta in a Compton-scattering experiment, as shown in the drawing. What is the scattering angle straight theta if the energy of the scattered photon is 5.111 keV. (For accuracy, use h = 6.626 x 10-34 J·s and c = 2.998 x 108 m/s.)
Answers
Answer:
The scattering angle is 0.80
Explanation:
As we know
Wave length = h/mc (1-cos α) --1
W = mc^2
m = E/c^2
Substituting this in equation 1 we get
Wavelength = hc/E (1-cos α)
Substituting the given values, we get -
0.95*10^-9 = [(6.626 *10^-34 * 2.998 *10^8)/5.111*1000*1.6*10^-19} (1-cos α)
(1-cos α) = 1.14 *10^-10
cos α = 1- 1.14 *10^-10
α = 0.80
¿Juan quiere calentar una barra de aluminio de 100 g, para realizar un trabajo. La temperatura ambiente es de 27°C pero necesita elevar la temperatura de la barra hasta los 60°C. Si el aluminio tiene un calor especifico de 0,215 cal/g°C que cantidad de calor necesita aplicar ?
Answers
Answer:
709.5 cal
Explanation:
masa m de la barra de aluminio = 100 g
temperatura ambiente = 27 ° C
Asumiremos que la barra de aluminio está en equilibrio térmico con el ambiente.
Esto significa que la temperatura inicial de la barra es de 27 ° C
temperatura final a la que la barra debe calentarse = 60 ° C
el aumento de temperatura ΔT será
ΔT = 60 ° C - 27 ° C = 33 ° C
capacidad calorífica específica c del aluminio = 0.215 cal/g°C
Calor C requerido = mcΔT
C = 100 x 0.215 x 33 = 709.5 cal
Question 1
1 points)
Will any two objects dropped from the same height hit the ground at the same time if air resistance is not a
factor?
A) scientific
B) non-scientific
Answers
a convex mirror produces a reduced real image when the object is placed far beyond its focal point (region 1). True or False.
Answers
The given statement is True.
Explanation:
A convex mirror is also known as a diverging mirror because it diverges rays of light that fall on it. It is curved outwards and has a reflective surface on its outer surface. Convex mirrors always produce virtual, erect, and diminished images of objects.
For all positions of the object, the image created by a convex mirror is virtual, upright, and smaller than the object.
The focal length of a convex mirror is negative and is one-half of its radius of curvature. A convex mirror has a focal length that is half of its radius of curvature. The image created by a convex mirror is always smaller than the object, and it is also located between the focal point and the mirror's surface when the object is positioned beyond the mirror's focal point.
Hence, a convex mirror produces a reduced real image when the object is placed far beyond its focal point (region 1).So, the given statement "a convex mirror produces a reduced real image when the object is placed far beyond its focal point (region 1)" is True.
Know more about convex mirror here,
https://brainly.com/question/31234954
#SPJ11
he event that marks the end of a star's evolutionary life before becoming a white dwarf is
a. helium flash
b. a nova
c. a Type I supernova
d. the depletion of hydrogen in the core
e. a planetary nebula
Answers
The event that marks the end of a star's evolutionary life before becoming a white dwarf is a planetary nebula. So, option E is correct.
A planetary nebula is characterized by cosmic rays of gas and dust surrounding a dying star. This dying star becomes a white dwarf after the complete depletion of hydrogen in the core.
It gets its name from a scientist who described the gases to be looking like two planets around a dying star. Thus, it's called planetary nebulae. This marks the final stage of a dying star that becomes a white dwarf. It consists of the outer layers of the star.
To learn more about planetary nebula:
brainly.com/question/1162533
#SPJ4
A proton moving at 3.40 106 m/s through a magnetic field of 1.97 T experiences a magnetic force of magnitude 7.71 10-13 N. What is the angle between the proton's velocity and the field
Answers
When the proton passed through magnetic field then the angle between the proton velocity and the field is 49° degrees.
Given
Speed v = 4.00 m/s
Mg field =1.7 T
Force = 8.21 10-3 N
Given:- Velocity of the particle = 4.00x10m/3. 2 Magnitude of the magnetic field B= 1.701.
Force experienced by the particle: 8.20x10¹³N.
To find: The between the particle velocity and field. angle a
We know that :- F= q(√xB)
9 (VBSino) 928 - Sina
Sina = 8.20×10-13 1.6×10-19×4×10 6 x 1.70 = 0.7536.
Sin a = 0.7536. ~ Sin 0 = 0.754
a = sin' (0.7536)
a = 49°
we have a point charge q0 located at r and a set of external charges conspire so as to exert a force F on this charge. We can define the electric field at the point r by: E =Fq0
The (vector) value of the E field depends only on the values and locations of the external charges, because from Coulomb’s law the force on any “test charge” proportional to the value of the charge. However to make this definition really kosher we have to stipulate that the test charge q0 is “small”; otherwise its presence will significantly influence the locations of the external charges.
The electric field is a vector. we can see that its SI units must be It follows from Coulomb’s law that the electric field at point r due to a charge q located at the origin is given by E = kq where r is the unit vector which points in the same direction as r.
To know more about proton velocity here
https://brainly.com/question/24761394
#SPJ4
about how many stars are in our galaxy (the milky way galaxy)?
Answers
The Milky Way galaxy is the home of the Sun. Over 100,000,000,000 stars are thought to be present in the Milky Way alone, according to astronomers.
One of the many billions of galaxies in the cosmos is the Milky Way galaxy. The universe is a large region of space that houses everything that has ever existed. All the galaxies, stars, and planets are in the cosmos. Unknown is the precise size of the universe. According to scientists, the universe is still growing. At least 100 billion stars, including our Sun, make up the Milky Way, a spiral galaxy with a diameter of around 100,000 light-years. We are located in one of the four primary arms of the pinwheel-shaped constellation of stars, roughly two thirds of the way from the center. It is believed that the majority of the stars in our galaxy are home to their own families of planets.
learn more about milky way galaxy here:
https://brainly.com/question/2905713
#SPJ4
Part A
Which sentence best states the central idea of paragraphs 21-22 in "Energy Story"?
A. Materials that are insulators and conductors have a high
resistance to electricity.
B. It is more difficult for electricity to pass through insulators than conductors.
C. Insulators and conductors are able to generate a high amount of electricity
D.Electrons move through rubber easier than they move through
metal.
Part B
Which sentence from "Energy Story" best supports the answer in Part A?
A. "Electricity is conducted through some things better than
others."
B. "Its resistance measures how well something conducts
electricity."
C."Some things hold their electrons very tightly."
D. "Other materials have some loosely held electrons, which move
through them very easily."
Answers
Answer:
Which sentence best states the central idea of paragraphs 21-22 in "Energy Story"?
A. Materials that are insulators and conductors have a high
resistance to electricity.
Part B
Which sentence from "Energy Story" best supports the answer in Part A?
B. "Its resistance measures how well something conducts
electricity."
Explanation:
Is the substance above an element, compound or mixture?
Answers
Answer:
If it is pure, the substance is either an element or a compound. If a substance can be separated into its elements, it is a compound. If a substance is not chemically pure, it is either a heterogeneous mixture or a homogeneous mixture. If its composition is uniform throughout, it is a homogeneous mixture.
Explanation:
what type would never freeze
Answers
Answer:
Ummmm Human's I don't understand your answer
Explanation:
Have a Nice Day
Which of the following is the source of energy driving the circulation pattern labeled C in the diagram
Answers
Solar radiation is the source of energy driving the circulation pattern.
What impact does solar radiation have on climate?Changes in solar output have been hypothesized to have an impact on our climate, both directly by altering the pace at which the Earth and atmosphere are heated by the sun and indirectly by altering the mechanisms that cause clouds to form.
What elements influence how much solar energy Earth receives?Insolation, or the quantity of solar radiation received on a certain surface area over a particular period of time, is largely influenced by latitude, climate, and weather patterns. In general, locations with dry climates and lower latitudes get more insolation than other places.
To know more about solar radiation visit
brainly.com/question/23338147
#SPJ4
who needs more body building food, a father or a child? Why?
Answers
Answer:
A Child has a fast metabolism since it is growing fast it needs Food, Liquids, Sleep.
Explanation:
A father has already Grown and is only gaining age.
So we can Conclude that A child needs more body building food.
An observer sitting at a bus stop sees the bus drive by at 30 m/s to the east. He also sees a
passenger on the bus walking to the back at 2 m/s. What is the passenger's velocity relative
to the bus?
Answers
Answer:
32 m/s
Explanation:
The speed of a bus is 30 m/s due East wrt the passenger
He also sees a passenger on the bus walking to the back at 2 m/s.
We need to find the passenger's velocity relative to the bus. As the observer sees that the bus and the passenger are moving in opposite direction. Let v is the relative velocity. So,
v = 30 m/s + 2 m/s
v = 32 m/s
Hence, the passenger's velocity relative to the bus is 32 m/s.
Suzy and her brother are racing with their new bikes in the neighborhood. Their block is one mile long. Suzy’s average speed is 0.12 mi/s and her brother’s is 0.09 mi/s. Who will reach the end of block first, and how much time ahead of the other will they be?
Answers
Answer:
suzzi reaches first cuz she is faster
Explanation:
she will be ahead by 3 seconds
Suzy will reach the end of the block first, and her brother will be 2.78 seconds behind her.
To determine who will reach the end of the block first and the time difference between them, we can calculate the time it takes for each of them to cover the one-mile distance.
Suzy's time:
Time = Distance / Speed
Time = 1 mile / 0.12 mi/s
Time = 8.33 seconds
Brother's time:
Time = Distance / Speed
Time = 1 mile / 0.09 mi/s
Time = 11.11 seconds
Now we can compare their times:
Suzy's time: 8.33 seconds
Brother's time: 11.11 seconds
Suzy will reach the end of the block first, and her brother will be behind by:
Time difference = Suzy's time - Brother's time
Time difference = 8.33 seconds - 11.11 seconds
Time difference = -2.78 seconds
The time difference should be a positive value, indicating that Suzy's brother will be behind by 2.78 seconds.
To know more about Suzy
https://brainly.com/question/13962115
#SPJ3
A soccer ball is kicked at an angle of 40° from the ground at a speed of 30 m/s. 1. Describe which motion (horizontal of vertical) of the ball is constant and which is accelerated
2. What are the vertical and horizontal components of the ball's initial velocity? 3. For what length of time is the ball in the air assuming the ground is flat and horizontal?
4. What is the range of the ball assuming the ground is flat and horizontal?
Answers
Answer:
(1). This motion is projectile motion.
(2). The horizontal initial velocity is 19.3 m/s.
The vertical initial velocity is 22.9 m/s.
(3). The time is 3.9 sec.
(4). The range of the ball assuming the ground is flat and horizontal is 90.4 m.
Explanation:
Given that,
Angle = 40°
Velocity = 30 m/s
(1). A soccer ball is kicked at an angle from the ground at a speed of 30 m/s.
So, this motion will be projectile motion.
(2). We need to calculate the vertical and horizontal components of the initial velocity of the ball
Using formula of vertical initial velocity
\(u_{y}=u\cos\theta\)
Put the value into the formula
\(u_{y}=30\cos40\)
\(u_{y}=22.9\ m/s\)
Horizontal initial velocity ,
\(u_{x}=u\sin\theta\)
Put the value into the formula
\(u_{x}=30\sin40\)
\(u_{x}=19.3\ m/s\)
(3). We need to calculate the time
Using formula of time
\(t=\dfrac{2u\sin\theta}{g}\)
Put the value into the formula
\(t=\dfrac{2\times19.3}{9.8}\)
\(t=3.9\ sec\)
(4). We need to calculate the range of the ball assuming the ground is flat and horizontal
Using formula of range
\(R=\dfrac{v^2\sin2\theta}{g}\)
Put the value into the formula
\(R=\dfrac{30^2\sin80}{9.8}\)
\(R=90.4\ m\)
Hence, (1). This motion is projectile motion.
(2). The horizontal initial velocity is 19.3 m/s.
The vertical initial velocity is 22.9 m/s.
(3). The time is 3.9 sec.
(4). The range of the ball assuming the ground is flat and horizontal is 90.4 m.
they say what goes up must come down does that mean that all of our intelligence will... is everybody in the future gonna be more and more dumb!
Answers
for the light bulb to produce the aame illuminace with the candle to the screen, the luminous intensity of the bulb is _______ that of the candle?
Answers
Answer:
9 times
Explanation:
luminosity decreases to the square of the distance
a 50 kg gymnast dismounts the balance beam with a radius of gyration of 0.3 m and an angular velocity of 4.2 rad/s. what is her angular momentum?
Answers
She has an angular momentum of 63 kg/m2. A gymnast weighing 50 kg dismounts the balancing beam at 4.2 rad/s and a radius of gyration of 0.3 m. As the rotating equivalent of linear momentum.
In physics, angular momentum (rarely moment of momentum or rotational momentum) is used. It is a conserved quantity, meaning that in a closed system, the total angular momentum stays constant, making it a significant physical quantity. In physics, the rotational velocity ( or ), also referred to as the angular frequency vector, is a pseudovector representation of how quickly an object's angular position or orientation varies over time.
A moment of inertia equals an angular momentum * angular velocity = (50*0.3) * 4.2 angular momentum = 63 kg/m2
Learn more about angular momentum here
https://brainly.com/question/29897173
#SPJ4
Overgrazing occurs when farm animals, like cows, sheep, and horses, eat all the plants on an area of land. When all of the plants have been eaten, the soil is left bare as is shown in the picture below.
Since overgrazing removes the plants that help hold the soil in place, overgrazing can cause increased _______.
A.
rainfall
B.
erosion
C.
snow
D.
wind
Answers
Answer:
erosion
Explanation:
because i just got it right on study island
........................
Answers
Answer:
14°F = 263.15 K
31°F = 272.594 K
71°F = 294.817 K
35°F = 274.817 K
Explanation:
Use the formula 273.15 + ((°F–32)•5)/9
At time=0s, the object is at the 21.0-meter position along the roadway. Where is the object at time = 10 s?
A) 91 m
B) 70 m
C) 140 m
D) 96 m
Answers
A boy holds a heavy package for one hour. He is very tired but has not done any work. Explain why he did not do any work.
Answers
Answer:he's not applying force or motion
Explanation:
p=f & m
a 60-kg crate is lowered from a loading dock to the floor using a top passing over fixed support. The rope exerts a constant upward force on the crate of 500 N.
A. Will the crate accelerate? Explain.
B. What are the magnitude and direction of the acceleration of the crate?
C. How long will it take for the crate to reach the floor of the height of the loading dock is 1.4m above the floor?
D. How fast is the crate traveling when it hits the floor?
Answers
Explanation:
a) What is the weight of the crate?
W = m*g = 60 kg *9.81 m/s^2 = 588.6 N
Sum of the forces in the vertical direction on the box (up is +) = F - W = 500 N - 588.6 N = -88.6 N
Since the forces do not add up to 0, then there is a net force on the crate which will cause the crate to accelerate.
b) F = m*a ==> a = F/m
a = -88.6 N / 60 kg = -1.48 m/s^2 (- means down since above we declared up as +)
c) Assume it starts from rest, vi = 0 m/s
Equation of motion in the vertical direction
h = h0 + v0*t + 1/2*a*t^2
h0 = 1.4 m
h = 0 m
v0 = 0 m/s
a = -1.48 m/s^2
0 = 1.4 m + 0 - 1/2* 1.48 m/s^2 * t^2
1.4 m = 1/2 * 1.48 m/s^2 * t^2
t = 1.38 s
d) vf = vi + a*t
vi = 0 m/s
vf = a*t = -1.48 m/s^2 * 1.38 s = -2.04 m/s
An unbalanced force of 2 newtons applied to a given mass produces an acceleration. If an unbalanced force of 1 newton is applied to the same mass, the acceleration produced will be.
Answers
If an unbalanced force of 1 newton is applied to the same mass, the acceleration produced will be twice as much.
What does acceleration mean?The rate at which velocity varies with respect to time is referred to as acceleration. Since acceleration has both a magnitude and a direction, it is a vector quantity. Additionally, it is the first derivative of velocity with respect to time or the second derivative of position with respect to time.
What exactly does force mean?If there is no opposition, it may be described as an interaction that modifies an object's motion. However, the straightforward definition of force is the push or pull that an item experiences. Force has both a magnitude and a direction since it is a vector quantity.
To know more about acceleration visit
brainly.com/question/12550364
#SPJ1
Review the families and classification of elements in the periodic table. Based on this information, you would expect elements to the left of the stair-step line in the periodic table to form ________ ions and have __________ valence electron(s).
Answers
Review the families and classification of elements in the periodic table. Based on this information, you would expect elements to the left of the stair-step line in the periodic table to form NEGATIVE ions and have
4-7 valence electron(s).
From the review of the families and classification of elements in the periodic table.
Elements on the right side of the periodic table are NONMETALS. The staggered stair step on the periodic table divides the metals from the nonmetals.
The families in the periodic table of elements:
Group: A vertical column in the periodic table.
Alkali metals group 1A of the periodic table.
Alkaline earth metals: Group 2A of the periodic table.
Halogens: Group 7A of the periodic table
Noble gases: Group 8A of the periodic table.
Transition elements: Groups 3 to 12 of the periodic table.
The left of the stair-step line in the periodic table to form NEGATIVE ions and have 4-7 valence electron(s).
For such more questions about periodic table:
https://brainly.com/question/15226327
#SPJ4
Explain your answers to 9a and 9b in terms of Newton's laws of motion.
Answers
Answer:i One way to solve the quadratic equation x2 = 9 is to subtract 9 from both sides to get one side equal to 0: x2 – 9 = 0. The expression on the left can be factored:
Explanation: