The answer to the given question is given below:a) The first liquid phase would form at a temperature of 1355 degree Celsius or 2471 degree Fahrenheit.b) The composition of this liquid phase would be calculated by using the lever rule. The lever rule states that the amount of any phase can be calculated by the ratio of the length of the tie line that intersects that phase to the total length of the tie line. So, according to the lever rule: Wt% Ni in the liquid phase = (Length of tie line to liquid phase) / (Length of entire tie line) = (1360 - 1300)/(1360 - 1315) = 57.4% Wt% Cu in the liquid phase = 100 - 57.4 = 42.6%c) The complete melting of the alloy occurs at a temperature of 1395 degree Celsius or 2533 degree Fahrenheit.d) The composition of the last solid remaining prior to complete melting is given by using the lever rule. Therefore, Wt% Ni in the last solid remaining prior to complete melting = (Length of tie line to solid phase) / (Length of entire tie line) = (1315 - 1300) / (1360 - 1315) = 30.3% Wt% Cu in the last solid remaining prior to complete melting = 100 - 30.3 = 69.7%Thus, these are the answers to the given question.
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(a) The liquid phase forms at a temperature of 1346°C or 2455°F.
(b) The composition of the liquid phase is 63.1 wt % Ni - 36.9 wt % Cu.
(c) Complete melting of the alloy occurs at a temperature of 1390°C or 2534°F.
(d) The composition of the last solid remaining prior to complete melting is 81.6 wt % Ni - 18.4 wt % Cu.
A copper-nickel alloy of composition 70 wt % Ni - 30 wt % Cu is slowly heated from a temperature of 1300°C (2370°F). We have to find the temperature at which the first liquid phase forms, the composition of this liquid phase, the temperature at which complete melting of the alloy occurs and the composition of the last solid remaining prior to complete melting. We will use the phase diagram for copper-nickel system as shown below: Fig: Phase diagram for copper-nickel system
(a) The liquid phase forms at the temperature where the line AE intersects the liquidus at point C. Reading off the temperature from the phase diagram, the temperature at which the first liquid phase forms is 1346°C or 2455°F.
(b) The composition of the liquid phase can be determined from the intersection of the horizontal line through C with the phase boundary between liquid and alpha phase. The composition of the liquid phase is 63.1 wt % Ni - 36.9 wt % Cu.
(c) Complete melting of the alloy occurs at the temperature where the line AE intersects the melting curve at point E. Reading off the temperature from the phase diagram, the temperature at which complete melting of the alloy occurs is 1390°C or 2534°F.
(d) The composition of the last solid remaining prior to complete melting can be determined from the point D where the line AD intersects the phase boundary between alpha and liquid. The composition of the last solid remaining prior to complete melting is 81.6 wt % Ni - 18.4 wt % Cu.
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It takes a certain power P to keep a plane moving along at a speed v. The power needs to overcome air drag which increases as the speed
increases, and it needs to keep the plane in the air which gets harder as the speed decreases. So assume the power required is given by
P = cv^2+ d/v^2
where c and d are positive constants. (They depend on your plane, your altitude, and the weather, among other things.) Enter here _______
the choice of w that will minimize the power required to keep moving at speed v. Suppose you have a certain
amount of fuel and the fuel flow required to deliver a certain power is proportional to to that power. What is the speed u that will maximize your
range (i.e., the distance you can travel at that speed before your fuel runs out)? Enter your speed here _____
Finally, enter here_____
the ratio of the speed that maximizes the distance and the speed that minimizes the required power.
The ratio of the speed that maximizes the distance and the speed that minimizes the required power is 1.
What is distance?Distance is the measurement of space between two objects or points. It is an important concept in mathematics, physics, and many other scientific fields. Distance can be measured in linear units such as meters, kilometers, feet, or miles. It can also be measured in angular units such as degrees, radians, or arcminutes. Distance can be calculated by using various formulas and calculations, such as the Pythagorean theorem or the distance formula.
The choice of w that will minimize the power required to keep moving at speed v is w = √(d/c). The speed u that will maximize the range is u = √(d/c) × v. The ratio of the speed that maximizes the distance and the speed that minimizes the required power is 1.
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if you weigh 88 N on the moon when the gravity 1.6m/s2 what is your mass
Aretha measures a circuit at 110 v and 240. Using ohm’s law, what can she calculate for the circuit? voltage ohms resistance current.
Therefore, depending on which two variables Aretha knows, she can use Ohm's law to calculate either the resistance or current of the circuit.
Using Ohm's law, we can calculate the resistance or current of the circuit if we know the other two variables. Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance between them.
So, if Aretha knows the voltage (110 V) and the resistance (240 Ω) of the circuit, she can calculate the current flowing through the circuit using the formula:
Current (I) = Voltage (V) / Resistance (R)
I = 110 V / 240 Ω
I = 0.458 A
Conversely, if Aretha knows the voltage (110 V) and the current (0.458 A) flowing through the circuit, she can calculate the resistance of the circuit using the formula:
Resistance (R) = Voltage (V) / Current (I)
R = 110 V / 0.458 A
R = 240 Ω
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In matters of electrical safety, technicans often wear clothing made of rubber, plastic or dry cotton. In two or more sentences, explain why wearing clothing made of these materials specifically can help protect you from electrical hazards?
We will have the following:
The reason behind these materials being used to specifically protect against electrical hazards is that, they are insulators, at least to some degree; this means that when electricity enters in contact with the material it has trouble moving through and thus protects the user from the electricity (To certain degree).
A stationary 1.67-kg object is struck by a stick. The object experiences a horizontal force given by F = at - bt^2, where t is the time in milliseconds from the instant the stick first contacts the object. If a = 1500 N/(ms) and b = 20 N/(ms)^2, what is the speed of theobject just after it comes away from the stick at t = 2.74 ms?
The speed of the object just after it comes away from the stick at t = 2.74 ms is: 1.36 m/s.
What is the horizontal force?The horizontal force on an object can be calculated using the formula given below:
F = ma
Where, m = mass of the object
a = acceleration of the object
Here, the given force is:
F = at - bt²
Where, a = 1500 N/(ms)
b = 20 N/(ms)²
t = 2.74 ms
We can substitute these values in the given equation to calculate the force:
F = at - bt²
F = 1500 × 2.74 - 20 × (2.74)²
F = 4110 - 155.68F = 3954.32 N
The final velocity of an object can be calculated using the formula given below:
v = u + at
Where, v = final velocity
u = initial velocity
a = acceleration
t = time taken
We know that the object is initially at rest. Therefore, the initial velocity of the object is zero.
u = 0a = F/m = 3954.32/1.67 = 2366.77 m/s²t = 2.74 ms
We can substitute these values in the above equation to calculate the final velocity:
v = u + atv = 0 + 2366.77 × 2.74 × 10⁻³v = 6.4768 m/s
The speed of the object just after it comes away from the stick at t = 2.74 ms is 1.36 m/s (as we are looking for the speed and not velocity, we need to take the magnitude of velocity).
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Find the difference quotient, h
f(x+h)−f(x)
, and simplify, given f(x)=3x 2
−7x+1. b. Now find the derivative f ′
(x) for f(x) in 3 ) above using the definition.
Given f(x) = 3x² - 7x + 1To find the difference quotient, h:It is defined as the derivative of the function. Hence, the difference quotient h is given by h = f(x + h) - f(x) / h
First, we need to calculate f(x + h)By substituting x + h for x in f(x), we getf(x + h) = 3(x + h)² - 7(x + h) + 1 = 3x² + 6hx + 3h² - 7x - 7h + 1 = 3x² - 7x + 6hx + 3h² - 7h + 1Now, we can substitute both f(x + h) and f(x) in the difference quotient, h to geth = f(x + h) - f(x) / h = (3x² - 7x + 6hx + 3h² - 7h + 1) - (3x² - 7x + 1) / h = (6hx + 3h² - 7h) / h
Next, we can simplify h to get h = 6x + 3h - 7 This is the difference quotient, h of the function f(x) = 3x² - 7x + 1.To find the derivative f'(x) for f(x), we need to evaluate the difference quotient, h at h = 0.We have,
h = 6x + 3h - 7
Substituting h = 0, we get h = 6x + 3(0) - 7 = 6x - 7 Thus, the derivative of f(x) = 3x² - 7x + 1 is f'(x) = 6x - 7 by definition.
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Calculate the mass (in kg) of 54.3 m³ of granite. The density of granite is 2700 kg/m³. (Remember: density = mass / volume)
To determine the mass of granite, we must first understand the definition of density. Density is defined as the amount of matter present in a substance per unit volume.
We use the formula: density = mass/volume to calculate the mass of a substance given its density and volume. To calculate the mass of 54.3 m³ of granite, we use the following steps:
Given Density of granite = 2700 kg/m³Given volume of granite = 54.3 m³Let us substitute the values in the formula of density:density = mass/volume Solving for mass, we get:mass = density × volume Substitute the given values of density and volume into the formula:mass = 2700 kg/m³ × 54.3 m³
The m³ unit in the volume cancels out, leaving us with kg as the unit for mass.
We then solve the equation to get the mass:mass = 146,610 kg
Therefore, the mass of 54.3 m³ of granite is 146,610 kg.
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when a satellite travels at constant speed, its shape is a(n) _______.
A satellite travels at a constant speed, its shape is a circle.
An integrated receiver and transmitter of radio signals known as a transponder, a satellite is essentially a self-contained communications system that can receive signals from Earth and retransmit those signals back to Earth.
The three primary parts of a satellite are the propulsion system, which includes the rockets that move the satellite, the power system, which includes the solar panels that supply power, and the communications system, which includes the antennae and transponders that receive and retransmit signals. To enter into the proper orbit and periodically adjust its position, a satellite needs a propulsion system of its own.
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When compared to others, how is a greater velocity represented on a motion map?
Answer:
Longer legs
Explanation:
I took the test
Which moon phase come after a new moon and before a first quarter moon?
Answer: Waxing crescent moon
Explanation: The moon phase that comes after the new moon is waxing crescent and before the first quarter.
Plants are able to release water back into the atmosphere by a process called _____.
Answer:
Also, water also makes its way into the atmosphere via a process called transpiration in which plants release water into the air from their leaves that was pulled up from the soil through roots. Collectively, the water evaporated from the land and from plants is called evapotranspiration.
Explanation:
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A charge of 8.15 mC is placed at each corner of a square 0.170 m on a side.
Part A
Determine the magnitude of the force on each charge.
Express your answer to three significant figures and include the appropriate units.
F = Part B
Determine the direction of the force on a charge.
a. along the side of the square toward the other charge that lies on the side
b. along the line between the charge and the center of the square outward of the center
c. along the side of the square outward of the other charge that lies on the side
d. along the line between the charge and the center of the square toward the center
If a charge of 8.15 mC is placed at each corner of a square 0.170 m on a side then the magnitude of Force = 3.48 N. The direction of the force on Charge is along the line between the charge and the center of the square, outward of the center. (option B) is correct.
To determine the magnitude and direction of the force on each charge in the given configuration, we can use Coulomb's law.
Coulomb's law states that the force between two charged objects is given by:
F = k * |q1 * q2| / r^2
where:
F is the magnitude of the force,
k is the Coulomb's constant (k = 8.99 x 10^9 N m^2/C^2),
q1 and q2 are the magnitudes of the charges,
and r is the distance between the charges.
In this case, each charge is 8.15 mC (milliCoulombs), and the distance between them is the side length of the square, which is 0.170 m.
Part A: Magnitude of the force on each charge (F)
Using Coulomb's law:
F = k * |q1 * q2| / r^2
= (8.99 x 10^9 N m^2/C^2) * (8.15 x 10^-3 C)^2 / (0.170 m)^2
Calculating this, we get:
F ≈ 3.48 N
Therefore, the magnitude of the force on each charge is approximately 3.48 N.
Part B: Direction of the force on a charge
The force between two positive charges is repulsive, meaning the charges will push away from each other. Since all charges in this square are positive, the force on each charge will be outward, along the line between the charge and the center of the square, toward the center.
So, the correct option is:
b. along the line between the charge and the center of the square, outward of the center.
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What force acts on an object in free fall?
Answer:
gravitational force. in my view but m not sure
In 3–4 sentences, describe how a particle accelerator works and give an example of the applications of the discoveries made with them.(4 points)
Explanation:
A particle accelerator is a machine that uses electric fields to accelerate charged particles to very high speeds and energies. These particles are then collided with a target or another beam of particles. The resulting collision products are then studied by detectors to learn more about the fundamental nature of matter and the universe.
One example of a particle accelerator is the Large Hadron Collider (LHC) at CERN. The LHC is used to collide beams of protons or lead ions at very high energies. By studying the collisions, scientists have been able to discover new subatomic particles, such as the Higgs boson, and test fundamental theories of particle physics, such as the Standard Model. The discoveries made at the LHC have helped to deepen our understanding of the building blocks of matter and the origins of the universe.
The cyclotron accelerates the charged particles in the magnetic field by applying an alternating electric field.
What is meant by a particle accelerator ?A particle accelerator is a machine that accelerates charged particles higher speed and energy, by using electromagnetic field.
Here,
The particle accelerator uses electromagnetic field for accelerating the charged particles and finally for colliding them on a target.
Cyclotron is an application of particle accelerator.
Cyclotron is a device used to accelerate heavy, charged particles or ions like proton, deuteron, He nucleus etc.
Cyclotron consists of two semicircular D shaped discs called dees, at the centre of which an ion source is placed. An electromagnet is placed at the both ends of the plates.
The principle of cyclotron is that, a charged particle entering perpendicular to a magnetic field can create a circular path.
Ions or charged particles are released into the dees. These ions moves in a circular path due to the perpendicular magnetic field.
An alternating voltage is applied between the dees, such that it accelerates the charged particles.
Hence,
The cyclotron accelerates the charged particles in the magnetic field by applying an alternating electric field.
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A vector is 14.4 m long and
points in a 133 degree
direction.
Find the x-component of the
vector.
The x-component of the given vector is determined as 10.53 m.
X component of the vector
The x-component of a vector is defined as the value of the vector or component of the vector in the x direction.
For a vector of 14.4 m long and pointing in a 133 degree direction.
The x-component of the vector is calculated as follows;
Vx = V cosθ
where;
θ is the angle of inclination measured from positive x axisθ = 133⁰ - 90⁰ = 43⁰
Vx = 14.4 x cos(43)
Vx = 10.53 m
Thus, the x-component of the given vector is determined as 10.53 m.
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How will the electrostatic force be changed if the distance between two electric charges is tripled?
A) 9 times the original force
B) 3 times the original force
C) 1/9 of the original force
D) 1/3 of the original force
Answer:
How will the electrostatic force be changed if the distance between two electric charges is tripled?
B) 3 times the original force
NOTICE: BRAINLIEST WILL BE GIVEN!
what is radioactivity?
Answer:
As its name implies, radioactivity is the act of emitting radiation spontaneously. This is done by an atomic nucleus that, for some reason, is unstable; it "wants" to give up some energy in order to shift to a more stable configuration.
Explanation:
Too many neutrons in a nucleus lead it to emit a negative beta particle, which changes one of the neutrons into a proton. Too many protons in a nucleus lead it to emit a positron (positively charged electron), changing a proton into a neutron. Too much energy leads a nucleus to emit a gamma ray, which discards great energy without changing any of the particles in the nucleus. Too much mass leads a nucleus to emit an alpha particle, discarding four heavy particles (two protons and two neutrons).
In a catapult,stored energy is to useful kinetic energy stores. what name is given to the stored energy?
Answer:
I think it's potential energy
The flow of electricity in a certain path is called.
The flow of electricity in a certain path is the circuit.
what is the force that opposes the movement of two surfaces that are in contact and are sliding over each other? and it is not friction.
Answer:
Friction
Explanation: is the force that opposes motion between any surfaces that are in contact. There are four types of friction: static, sliding, rolling, and fluid friction. Static friction acts on objects when they are resting on a surface.Nov 3, 2021
How does rocks and fossils determine Earth's age?
Answer:
There are two main ways to determine the age of a rock, these are Relative dating and Absolute dating. Relative dating is used to determine the relative order of past events by comparing the age of one object to another.
Explanation:
Explanation:
rock and fossils are made by layers of dirt, sand,organic matter that has beem compressed over thousands,if not millions of years.
some scientists use this layering to determine how old the earth is.
its kind of like looking at the rings of a tree to see how old it is.
the scientists look at each layer of the rock or fossil and use what they already know about when this type of soil or organic matter existed and try to piece together the past
What is asexual propagation? (simple answer)
Comparing stuff from a battery to the rubbing stuff
While both the rubbing stuff and batteries involve the generation and use of electrical energy, they differ in their underlying mechanisms and practical applications.
When it comes to comparing the rubbing stuff to a battery, there are a few key differences to consider. Firstly, the rubbing stuff, which is often referred to as static electricity, is generated through friction between two different materials.
This process creates a build-up of electrical charges, which can then be discharged through a spark or shock. In contrast, a battery generates electricity through a chemical reaction between two different materials, typically a metal and an electrolyte.
Another key difference is that while the rubbing stuff is often a temporary phenomenon, as the charges will dissipate over time, a battery can provide a continuous source of power as long as it has sufficient charge.
Additionally, a battery can be recharged and reused, whereas the rubbing stuff is generally a one-time occurrence.
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To outside observers at rest, the overall sizes of objects traveling at relativistic speeds are.
To outside observers at rest, the overall sizes of objects traveling at relativistic speeds are smaller.
The mathematical sign for light speed, "c," or relativistic speed, is approximately 186,282 miles per second. As a result, relativistic speed refers to the rate at which such effects are crucial for obtaining the proper level of measurement accuracy for the event under consideration. the discrepancies between values computed using relativity-based theories.
sizes of objects, in general, refers to a thing's size or magnitude. More specifically, the terms "geometrical size" or "spatial size" can be used to describe area, volume, or linear dimensions. Mass can also be used to estimate size, particularly when a range of densities is assumed. A file's actual space on a disc is represented by its sizes of objects. A file's logical and physical dimensions can match.
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earth is held together in the shape of a sphere. this is due to:_______
The correct option is D, Earth is held together in the shape of a sphere. This is due to its self-gravity.
Self-gravity refers to the force of gravity that an object exerts on itself. It arises from the fact that every particle or element of mass within an object attracts every other particle or element of mass towards itself. As a result, the object as a whole experiences a net gravitational force towards its center of mass.
Self-gravity plays a crucial role in understanding the behavior of astronomical objects, such as stars, planets, and galaxies. For example, it is responsible for the spherical shape of celestial bodies that have enough mass to overcome the structural rigidity of their constituent material. It also governs the motion of objects within a gravitational field, determining their orbital paths and stability.
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Complete Question: -
Earth is held together in the shape of a sphere. This is due to
a) chemical bonds.
b) its rotation rate.
c) pressure from the Sun
d) its self-gravity.
e) tidal forces
una llamada telefonica a brasil de 4 minutos costo el mes pasado 2430 si el valor por minuto se mantiene cualto debo pagar por una llamada de 6 minutos a ese pais
Answer:
Costo = 3645
Explanation:
Dados los siguientes datos;
Costo de la llamada = 2430
Duración = 4 minutos
En primer lugar, encontraríamos el costo por minuto;
Costo por minuto, Cpm = 2430/4
Cpm = 607.5
A continuación, para encontrar el costo de 6 minutos;
Costo = 607,5 * 6
Costo = 3645
Does construction of scientific questions require training as a scientist?
Answer: No doesn’t require any special training.
Explanation:
The construction of a scientific question doesn’t require any special training, Coming up with a scientific questions isn't supposed to be difficult and doesn't require training as a scientist.
If you've ever been curious about something, if you've ever wondered or want to know what caused something to happen, this are examples of scientific questions as they are usually driven by curiosity to know more.
CLASSWORK
1. Mr. Njie has a mass of 52.0 kg .Calculate Mr. Njie's weight.
[g = 10ms -2]
Answer:
Answer: Weight = 520 N
Explanation:
Weight = mass × acceleration
\({ \rm{weight = 52 \times 10}} \\ \\ { \rm{w = 520 \: newtons}}\)
Answer:
520 N
Explanation:
weight is 520 N.....
the radiative zone of the sun is just outside the core which has temperatures of about_____ 7 million degrees celsius.
The radiative zone of the sun is just outside the core which has temperatures of about_12 million degrees F_ (7 million degrees celsius).
What is radiative zone ?The radiative zone runs from the core's periphery to the interface layer or tachocline at the base of the convection zone (between 25% and 70% of the distance to the surface). The way that energy is transported—radiation—defines the radiative zone.
In a layer of a star's interior known as a radiation zone or radiative region, thermal conduction and radiative diffusion, rather than convection, are the primary ways by which energy is carried toward the outside of the star. Photons, which are electromagnetic particles, carry energy through the radiation zone.
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an ice cube is placed in a microwave oven. suppose the oven delivers 105 w of power to the ice cube and that it takes 30200 j to melt it.how long does it take for the ice cube to melt?
It will take 287.6 seconds for the ice cube to melt under the given conditions.
What is melt?Melt is a process in which a solid material is heated to its melting point, causing it to become a liquid. It is a physical process that occurs when a material is heated beyond its melting temperature, resulting in the formation of a liquid.
The amount of time it takes for the ice cube to melt depends on the mass of the ice cube. The equation to calculate this is:
Time (in seconds) = (30200 J)/(105 W x Mass of Ice Cube)
Assuming that the mass of the ice cube is 1 kg, then the time required to melt the ice cube is:
Time (in seconds) = (30200 J)/(105 W x 1 kg)
Time (in seconds) = 287.6 seconds
Therefore, it will take 287.6 seconds for the ice cube to melt under the given conditions.
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It will take 287.6 seconds for the ice cube to melt under the given conditions. This can be solved using the concept of heat.
What is melt?Melt is a process in which a solid material is heated to its melting point, causing it to become a liquid. It is a physical process that occurs when a material is heated beyond its melting temperature, resulting in the formation of a liquid.
The amount of time it takes for the ice cube to melt depends on the mass of the ice cube.
The equation to calculate this is:
Time (in seconds) = (30200 J) / (105 W x Mass of Ice Cube)
Assuming that the mass of the ice cube is 1 kg, then the time required to melt the ice cube is:
Time (in seconds) = (30200 J) / (105 W x 1 kg)
Time (in seconds) = 287.6 seconds
Therefore, it will take 287.6 seconds for the ice cube to melt under the given conditions.
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