Narrow sense heritability = ratio of additive genetic variance to the total phenotype variance
It is used more in practical because it is easily calculated and gives good estimate of broad sense heritability
heritability is
[tex]h^{2} = }\frac{v_{a} }{v_{p} }[/tex]
[tex]v_{a}[/tex] = variance in genotype
[tex]v_{b}[/tex]= variance in phenotype
Genotype variance : It is one of genetic parameter that determine effectiveness of selection process in plant breeding.
Phenotype variance: It determines whether that trait has the ability to respond to natural or artificial selection.
Heritability estimates range in value from 0 to 1. If H = 0 there is no genetic variation in which all variation in the population comes from differences in the environment experienced by individual.
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A laser emits light with a frequency of 5.69 x 1014 s-1. the energy of one photon of the radiation from this laser is:_________
A laser emits light with a frequency of 5.69 x 10^14 s-1 then the energy of one photon of the radiation from this laser is 3.7 x 10^(-19).
What is radiation?The energy emission in the form of electromagnetic waves or in the form of moving subatomic particles which are especially high-energy particles which cause ionization is called as the phenomenon of radiation.
Any kind of energy that emanates from a source and moves through space at the speed of light is referred to as radiation. This energy has wave-like qualities and is accompanied by an electric field and a magnetic field.
Here ∨ = 5.69 x 10^(14) s-1
we know E=h∨
where h = 6.626 x 10^(-34) js
putting the value in the formula, we have,
6.626 x 10^(-34) x 5.69 x 10^(-34)
=3.7 x 10^(-19)
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Atp, or ____________ , provides energy for nerve impulse conduction, muscle contraction, and many other chemical reactions necessary for life.
Atp, or Adenosine triphosphate, provides energy for nerve impulse conduction, muscle contraction, and many other chemical reactions necessary for life.
Adenosine triphosphate is an essential molecule in cellular energy production such as protein phosphorylation and RNA production. It is produced during photophosphorylation and cellular respiration, and is consumed by many enzymes in the catalysis of numerous chemical processes.
It is composed in the center of the molecule by: a five-carbon sugar (ribose), which binds to the nitrogenous base adenine and a chain of three phosphates. Its molecular formula is C₁₀H₁₆N₅O₁₃P₃
What is anatomy?It is the science or branch of biology that studies the structure of living beings in their evolutionary stages. Anatomy is subdivided into: plant and animal.
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You are preparing a performance review and have the following measurement at hand: pv = 300; ac = 200; and ev = 250. what is cpi of the project? group of answer choices 0.80 1.25 1.50 0.83
The correct option is (b) 1.25
The CPI of the project is 1.25. Earned Value (EV) is divided by Actual Cost (AC) to determine CPI.
CPI is calculated as follows: EV / AC. In this case, 250 / 200 = 1.25.
The CPI measures the effectiveness of project resources in relation to the project budget. Earned Value is divided by Planned Value to calculate SPI. SPI evaluates how well resources are performing in relation to the project schedule.The cost performance index (CPI) is a gauge of how closely the realized value of the job actually accomplished matches the costs really incurred: CPI = EV / AC. The actual progress (earned value) in comparison to the expected progress is measured by the schedule performance index (SPI) = EV / PVThe departure from the project's expected cost is measured using the CPI. SPI is the variance from the project's projected completion date. The project is over budget if the CPI is less than 1. Project is running late if SPI is less than 1.Learn more about the CPI and SPI with the help of the given link:
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During the time that a planet is in its period of apparent retrograde motion, _________.
During the time that a planet is in its period of apparent retrograde motion, over many weeks or days, the planet moves west relative to the stars, rather than the usual east relative to the stars
All the planets orbit the Sun in the exact direction, and if you envision a place above the Earth's north pole, you can see them traveling anticlockwise. The normal motion is anticlockwise and is recognized as 'prograde.'
When a planet is in apparent retrograde motion, it appears to be the planet moving west relative to the stars, rather than the usual east relative to the stars, frequently zigzagging or looping as it goes. The planet appears to be moving backward to the viewer. The word "retrograde" means "to move backward."
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What is true about an object as its temperature increases?a. the object's atoms lose heat. b. the object's atoms gain kinetic and elastic potential energies. c. the object's atoms gain heat.
When temperature of an object is increases then the objects atom gain kinetic energy and elastic potential energies.
Kinetic energy- It is the energy of an object due to its motion.
Example - All moving object possesses kinetic energy due to their motion.
Elastic potential energy - it is the energy stored in a spring that has been stressed or compressed from its natural length.
Example - An Archers stretched bow.
Heat is a form of both potential and kinetic energy.
Temperature helps in thermal expansion which result in higher collision between particles. It increases the kinetic energy of the molecule.
an object as its temperature increases then the object's atoms gain kinetic and elastic potential energies.
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Which layer of the osi model ensures the data being sent from the sender is formatted correctly so it can be interpreted correctly by the recipient system?
The presentation layer is sometimes known as the syntax layer since it is in charge of ensuring that the data it either receives or transmits to other layers has the correct syntax. Data sent across the network is formatted and encrypted by the presentation layer.
What is meant by the presentation layer?The presentation layer, which is layer 6 in the seven-layer OSI model of computer networking, acts as a network's data translator. It is referred to as the syntactic layer at times.
The communication is given to the top layer in a defined format thanks to the presentation layer (Layer 6). It deals with the messages' syntax and meaning. Communication across disparate systems, encrypts messages from the user-dependent format to the common format and vice versa.
The presentation layer, which is located at Layer 6 of the Open Systems Interconnection (OSI) communications architecture, makes sure that all communications passing through it are in the right format for the destination application. In other words, from the application layer's point of view, it provides the data in a comprehensible format.
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A steadily flowing stream of water is funneled into a graduated cylinder for exactly 30 s, during which time 50 ml is collected. what is the volumetric flow rate of the stream? the mass flow rate?
The stream has a mass flow rate of 1.666 g/sec and a volumetric flow rate of 1.666 ml/sec.
What is the mass known as?The dimensionless quantity mass is used to represent the amount of matter contained in a particle or object (symbolized m). The kilogram is the chosen unit of mass according to the International System (SI) (kg).
How is the mass determined?The following equation can be used to determine mass = volume * density. It is possible to gauge the gravitational force acting on a mass by determining its weight. The Newton (N) is the SI unit of weight (N).
Briefing:t= 30 sec
V= 50ml
Volumetric flow rate = V/t
= 50ml/30sec
= 1.666 ml/sec
We know density of water= 1g/cm³
= 1 g/ml
So, mass flow rate = V/t
= 1g/ml * 50ml/30sec
= 1.666 g/sec.
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Two solid metal balls all have the same radius. one is made of aluminum, the other of gold. if the balls are resting at the bottom of a pool of water, which ball has the largest buoyant force?
The buoyancy force on the gold ball will be more than that of aluminum.
What is buoyancy force?An upward force applied by a fluid against the weight of an item that is partially or totally submerged is known as upthrust, also known as buoyancy. Pressure in a fluid column increases with depth due to the weight of the fluid on top.
Given that two solid metal balls all have the same radius. one is made of aluminum, the other of gold. And the balls are resting at the bottom of a pool of water.
The buoyancy force at the bottom force will be calculated by finding the density of the balls.
Buoyancy force = Volume inside water x Density X g
Density of gold = 19.3 g / cc
Density of aluminium = 2.7 g / cc
Since the density of the gold ball is more than the density of the aluminum ball.
Therefore, the buoyancy force on the gold ball will be more than that of aluminum.
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Find the vector v with the given magnitude and the same direction as u. magnitude direction v = 4 u = 1, 1
The vector v with the given magnitude and the same direction as u. magnitude direction v = 4 u =< 1, 1>
=4/[tex]\sqrt2{^{2} }[/tex] i + 4/[tex]\sqrt2{^{2} }[/tex] j
What is vector?Vector, in physics, a quantity that has both magnitude and the direction. It is a typically represented by an arrow whose direction is the same as that of the quantity and whose length is proportional to the quantity’s magnitude. Although vector has magnitude and direction, it does not have the position. That is, as long as its length is not changed, vector is not altered if it is displaced parallel to itself.
In contrast to vectors, ordinary quantities that have a magnitude but not a direction are called the scalars. For example, displacement, velocity, and acceleration are vector quantities, while the speed (the magnitude of velocity), time, and mass are scalars.
To qualify as a vector, a quantity having magnitude and direction must also obey certain rules of the combination.
Therefore,
A vector a with given magnitude in the direction of b, is given by:
(||a||.b)/||b||
||u||=[tex]\sqrt{1^{2}+1^{2} }= \sqrt{2^{2} }[/tex]
||v||=4
[4(1+1)]/[tex]\sqrt{2^{2} }[/tex]= 4/[tex]\sqrt2{^{2} }[/tex] i + 4/[tex]\sqrt2{^{2} }[/tex] j
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How do ribbons differ from the toolbars used in previous versions of office applications? point out the advantages of using the ribbons.
The ribbon replaces the menus and toolbars in previous versions. The Ribbon makes available most of the functions that were previously hidden in the File menus.
The ribbon is a command panel that organizes program functions into a series of tabs at the top of the screen. Ribbon tabs consist of groups of closely related commands to help users quickly find the commands they want. Each ribbon is a bar across the page.
The advantages of using the ribbons are:
The ribbon makes it easy to see and find commands for formatting a document.Ribbons are a modern way to help users find, understand, and use commands efficiently and directly with a minimum of clicks, no trial-and-error, and no reference to help.To know more about ribbon,
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a) How far did the vehicle travel in total?
I need help on how to count each distance please
The total distance travelled during the vehicle's journey as found from the speed-time graph is 6.125 m
V = d / t
V = ( u + v ) / 2
V = Average Speed
d = Distance
t = Time
u = Initial velocity
v = Final velocity
During the first 0.5 s, u = 0 and v = 1 m / s.
d = ( 0 + 1 ) * 0.5 / 2
d = 0.25 m
During the next 0.5 s, u and v are equal meaning constant velocity ( V = 1 m / s ).
d = 1 * 0.5
d = 0.5 m
During the next 1 s, u = 1 m / s and v = 1.5 m / s.
d = ( 1 + 1.5 ) * 1 / 2
d = 1.25 m
During the next 2.5 s, u and v are equal meaning constant velocity ( V = 1.5 m / s ).
d = 1.5 * 2.5
d = 3.75 m
During the next 0.5 s, u = 1.5 m / s and v = 0.
d = ( 1.5 + 0 ) * 0.5 / 2
d = 0.375 m
Total distance travelled is the sum of all the individual distances calculated.
Total distance travelled = 0.25 + 0.5 + 1.25 + 3.75 + 0.375
Total distance travelled = 6.125 m
Therefore, the total distance travelled during the vehicle's journey as found from the speed-time graph is 6.125 m
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An ion of aluminum has a charge of 3 . the ion contains 10 electrons. how many protons does a neutral atom of aluminum possess?
a. 3
b. 10
c. 13
d. 16
The correct toption is (C) 13
The neutral atom of aluminum possess 13 protons.
Aluminum, denoted by the letter Al, is a group 3 element on the periodic chart. Total weight is 27 kilos. Since the number of electrons and protons in a neutral atom are equal, an aluminum atom that is neutral or uncharged has 13 electrons, 13 protons, and 14 neutrons. Keep in mind that the product of protons and electrons determines mass.The solution to this is that a 3+ charge on an aluminum ion means that an aluminum atom has lost three electrons, or 13 electrons - 3 electrons = 10. An aluminum atom will consequently have 10 electrons because it has a +3 charge. The fact that an aluminum atom possesses 13 protons when it is in a neutral state is unaffected by this.Learn more about the quantum mechanics with the help of the given link:
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A body is projected vertically upwards with a speed 100 m/s from the ground then distance it covers in its last second of its upward journey in meters is
The distance travelled by the body on last second of its upwards journey is 4.935m
What is projectile motion?
A projectile is an object or particle that is launched toward the surface of the Earth and moves along a curved path only under the influence of gravity.
To solve this question, consider the horizontal distance to be H and
distance traveled by the body in the last second be d
[tex]H=U^{2} /2g[/tex]
[tex]H=100^{2} /2*9.8[/tex]
H=510.2m
Now time taken to reach a height of
510.2 m= [tex]\sqrt[n]{2H/g}[/tex]
=10.2 seconds
Now,
[tex]s=ut+1/2gt^{2}[/tex]
[tex]H-d= (100)(t-1)-1/2g(t-1)^{2}[/tex]
[tex]510.2-d=100*9.2-1/2*9.8*9.2^{2}[/tex]
d=4936m
So, the correct answer is '4.936m'.
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Find the prime factorization of the integers of the form 10p-1 for p=1-7 what is the relevance of these factorizations to the behavior to the behavior of the decimal representation?
The integers can be arranged in the form of 10p - 1 such that p = 1-7 in the was as follows:
10p-1 = (10*1) - 1 = 9 = [tex]3^{2}[/tex] = 3x3
10p-1 = (10*2) - 1 = 19 = [tex]19^{1}[/tex]
10p-1 = (10*3) - 1 = 29 = [tex]29^{1}[/tex]
10p-1 = (10*4) - 1 = 39 = 3x13
10p-1 = (10*5) - 1 = 49 = [tex]7^{2}[/tex] = 7x7
10p-1 = (10*6) - 1 = 59 = [tex]59^{1}[/tex]
10p-1 = (10*7) - 1 = 69 = 3x23
Here we see that not all are in the form of 2^n x 5^m where n and m are non-negative integers.
As per the rule, if A =p/q be a rational number such that p and q are co-prime and the prime factorization of q is not in the form of 2^n x 5^m where n and m are non-negative integers, then A has a decimal expansion which is non-terminating recurring decimal.
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Assortative mating changes ______ frequencies but does not change ______ frequencies.
Allele frequencies are unaffected by assortative mating, but genotype frequencies .
Assortative mating:Individuals with similar phenotypes and genotypes mate with others more frequently than is anticipated under a random mating pattern in assortative mating, which is a mating pattern and a type of sexual selection.
Frequencies of genotypes:A population's genotype frequency is calculated by dividing the number of people having a particular genotype by the overall population size. The genotype frequency in population genetics is the frequency or ratio (i.e., 0 f 1) among genotypes inside a population.
The frequency for alleles in biology:The term "allele frequency" describes the prevalence of an allele in a population. It is calculated by calculating the number of times the allele occurs in the population and dividing by the sum of all the gene copies.
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4. Apply Scientific Reasoning Four boys push
on the front, back, and sides of a shopping
cart. The boys in the front and on the two
sides push with a force of 60 N. The boy in
back pushes with a force of 50 N. Which way
does the cart move?
The body would be moved in the forward direction by a net force of 10N.
What direction does the cart move?We know that force is a vector quantity. This implies that it has both magnitude and direction. The net force that acts on a body is the resultant force and this is the force that would move the object in a given direction. The object moves in the direction of the net force.
We are told that the forward force = 60 N
The backwards force = 50 N
We now have to determine the net force in order to understand the direction in which the body would move.
Net force = 60 N - 50 N = 10 N
It then follows that the body would be moved in the forward direction by a net force of 10N.
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Why are astronomers interested in building observatories capable of detecting neutrinos, cosmic rays, and gravitational waves?.
Astronomers are interested in building observatories capable of detecting neutrinos, cosmic rays, and gravitational waves because these are not forms of light, they can provide information about the objects that emit them that light cannot.
Astronomers study the heavens at X-ray wavelengths using satellites and earth-orbiting observatories. Because X-rays and gamma rays are absorbed high in the Earth's atmosphere, instruments to observe this radiation must be placed in orbit above the atmosphere.
Astronomy relies on electromagnetic radiation to help us see the universe. It allows us to see (visual light) on Earth. Pulsars, for example, emit X-rays but not visible light, which is how we know they exist. Neutrinos are also made up of energy, but they are made up of radioactive decay.
This enables scientists to measure them despite the fact that they can pass through almost anything without being noticed. Gravitational waves are disturbances caused by the curvature of space that expand at a specific rhythm or "force" that travels at the speed of time. Because they can all be measured without being light, they are ideal for being found in space to create more knowledge about the universe.
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Did helium created in fusion in the solar core reach the solar surface? explain.
The fusion of hydrogen nuclei in stars produced all of the helium in the Universe.
However, most stars undergo an internal transformation after turning a considerable percentage of their hydrogen to helium. The interior core compresses and warms up until it is hot enough to fuse helium into bigger atoms, for as by fusing three helium atoms into carbon. At the same time, some helium will combine with the carbon to generate oxygen. Outside the core, in what is known as the envelope, there is still enough hydrogen to fuse into additional helium. However, the center starts fusing heavier nuclei. This, by the way, is the transition from a 'regular' star like our Sun to a Red Giant.
After the red giant phase, the Sun will shed its outer layers, leaving behind a helium-rich core that will gradually cool throughout the course of the Universe. After the red giant phase with stars more massive than the Sun, it becomes practically a free for all for producing heavier and heavier atoms. When the helium in the core runs out, the star collapses again, heats up, and begins fusing carbon and oxygen into bigger atoms. If the star is large enough, this will continue until iron is fused. At such time, a hotter core will still not result in fusion. The star falls, becomes unstable, and explodes, resulting in supernovae and neutron stars (or black hole).
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What does your answer indicate about the total resistance of a parallel circuit with three resistors, compared to the resistance of the circuit with a single resistor?
The total resistance of a Parallel circuit with three resistors will be one third times lesser than the resistance of the circuit with single resistor.
What are resistors?A resistor is a passive two-terminal electrical component used in circuits to implement electrical resistance. Resistors have a variety of purposes in electronic circuits, including lowering current flow, adjusting signal levels, dividing voltages, biassing active components, and terminating transmission lines.
High-power resistors that can generate many watts of heat instead of electrical energy can be utilized as test loads for generators, power distribution systems, and motor controls. With temperature, time, or operating voltage changes, fixed resistors’ resistances only slightly fluctuate.
Variable resistors can be utilized as force sensors, heat sensors, light sensors, volume controls, lamp dimmers, humidity sensors, and chemical activity sensors.
What are the types of combination of resistors?When two or more resistances are connected between two points and each has a different current direction, the resistances are said to be connected in parallel.
In such circuits, the branches intersect at a common location, causing the current to branch out and then recombine.
When two or more resistances are connected end to end and the same current passes sequentially through all of them, this is referred to as a series connection. The total resistance in this situation is equal to the entire number of Individual resistances included in the series combination.
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What is the net force when a pair of 5-n forces simultaneously act in the same direction on an object?
The force resultant is 10N.
We need to know about force resultant to solve this problem. The force resultant can be described as the sum of force according to the magnitude and direction. It can be written as
∑F = F1 + F2 + .... + Fn
where ∑F is force resultant, F1 is the first force and Fn is the n-force.
From the question above, the parameter given is
F1 = 5 N
F2 = 5 N
Because of the same direction, the force will be added up each other.
∑F = F1 + F2
∑F = 5 + 5
∑F = 10 N
Hence, the force resultant is 10N.
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What is the charge of an ion that contains 83 protons and 80 electrons? express your answer as an signed integer.
The charge of the ion is +3. Because there are 3 extra or +3 when you subtract 83 from 80, bismuth is Bi+3 (plus 3 is the ion charge)
What is charge of an ion?Conventionally, the charge of an electron is thought to be negative; this charge is equal to and opposite to the charge of a proton, which is thought to be positive. Because the total number of electrons in an ion is more than the total number of protons, the net charge of an ion is not zero.
In contrast to an anion, which is negatively charged but has more electrons than protons, a cation is an ion that is positively charged but has fewer electrons than protons.
Electrostatic force causes opposite electric charges to be drawn towards one another, causing cations and anions to attract one another and easily form ionic compounds.
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To include a css file in an html document, you use the _______________________ element.
To include a css file in an html document, you use the link element.
While CSS determines the look and layout of a website, HTML defines its content and organisational structure. Together, the two languages make it possible to build a well-organized, useful website.
What kind of selection would you employ to make a specific HTML element reference?The id selector chooses a particular HTML element by using the id property. The id selector is used to choose a single distinct element since each element's id is distinct inside a page. A hash (#) character should be written after the element's id in order to pick it.
How may CSS be added to HTML?There are three techniques to include CSS in HTML documents: Using the style property inside HTML elements is known as "inline." Utilizing a "style" element in the "head" section is one internal method. External – by linking to an external CSS file using the link> element.
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This means the evidence is valid on its face, or based on the evidence, and the elements :_____
Prima facie means the evidence is valid on its face, or based on the evidence, and the elements.
What is prima facie?Prima facie, a Latin phrase that means "at first glance" or "based on first impression," The feminine versions of primus, which means "first," and facies, which means "face," both in the ablative case, would be translated literally as "at first face" or "at first appearance." "On the face of it" is a typical translation in contemporary, colloquial, and conversational English.
Prima facie refers to the initial appearance of enough supporting evidence to establish a case, and it is used in modern legal English (both in civil law and criminal law). Prima facie evidence is a term used in common law regimes to describe evidence that, absent rebuttal, would be sufficient to establish a certain claim or fact. In academic philosophy, the phrase is used similarly.
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A water pump with a power of 3.4 × 102 watts lifts water at the rate of 7.5 × 10-2 meters/second from a water tank. What is the force exerted by the pump on the water?
Answer:
P = W / t work / time = power
P = F * S / t
F = P t / S force required
F = P / (S / t) since given .075 meters / sec
F = 340 J/sec / .075 m/sec = 4530 J / m = 4530 Newtons
An electron not only moves around the nucleus but also on its own axis, thus generating a tiny field. The direction of this field is described by the quantum number, ms, which is not related to any specific orbital but is a property of the electron itself. True or false?.
Yes, the given statement is true.
An electron not only moves around the nucleus but also rotates on its own axis, thus generating a tiny magnetic field. The direction of the field is described by the spin quantum number, ms, which is not related to any specific orbital but is a property of the electron itself.
An atom is made up of three fundamental particles electrons, protons, and neutrons, and a positively charged nucleus. In an atom, electrons rotate on their axis as well as aorund the nucleus.
The rotational movement of electrons around the nucleus creates a magnetic field.
However, the magnetic forces cancel out each other due to the opposite spins of the electrons.
similarly, in a wire, the movement of electrons generates a magnetic field around the wire.
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Notice a small hydraulic jump at location where the channel has a width of 5 m. at the crest of the jump the depth appears to be about 1 m. what is the flow rate?
A small hydraulic jump at location where the channel has a width of 5 m. at the crest of the jump the depth appears to be about 1 m, Fr = 1.
Hydraulic Depth is the area of a cross-section divided by the highest width. Hydraulic Width is especially useful for irregularly shaped channels (not rectangular), as seen within the equation for calculating the Froude Number.
A hydraulic jump may be a phenomenon within the science of hydraulics which is often observed in open channel flow like rivers and spillways. When liquid at high velocity discharges into a zone of lower velocity, a rather abrupt rise occurs within the liquid surface.
Hydraulic jump, Sudden change in water level, analogous to a blast wave, commonly seen below weirs and sluice gates where a smooth stream of water suddenly rises at a foaming front. The very fact that the speed of water waves varies with wavelength and with amplitude ends up in a large type of effects.
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Consider the reaction, 2 d(g) 3 e(g) f(g) => 2 g(g) h(g) when e is decreasing at 0.36 mol/ls, how quickly is f decreasing? give your answer to 3 decimal places.
The rate at which F is decreasing is 0.12 mol / L s
Given that,
2 D(g) + 3 E(g) + F(g) → 2 G(g) + H(g)
Rate of reaction = - ΔD / 2 Δt = - ΔE / 3 Δt = - ΔF / Δt = ΔG / 2 Δt = ΔH / Δt
Given that,
- ΔE / Δt = 0.36 mol / L s
- ΔE / 3 Δt = - ΔF / Δt
- 0.36 / 3 = - ΔF / Δt
- ΔF / Δt = - 0.12 mol / L s
The rate of reaction is the measure of how quickly or slowly that a reaction proceeds.
Therefore, the rate at which F is decreasing is 0.12 mol / L s
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If it takes e = 91.9 mj of energy to separate q = 2.91 c of charge, what is the resultant voltage?
The resultant voltage is calculated as 0.315 V
CalculationIt is given that
E = 91.9 mj
Q = 2.91c
V = E/Q
=91.9 x [tex]10^{-3}[/tex] / 2.91
= 31.58 mV
= 0.03158 V
Thus, the resultant voltage is calculated as 0.315 V
What is Voltage?The difference in electric potential between two points, which is defined as the work required per unit of charge to move a test charge between the two points, is known as voltage, electric potential difference, electric pressure, or electric tension.
Voltage can also be described as the pressure from an electrical circuit's power source that helps to push the charged electrons (current) through a conducting loop, that enables them to do work such as illuminating a light.
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Need the answer badddd without this app I’d be screwed
Answer:
B
Explanation:
The first modern personality test was the Woodworth Personal Data Sheet, which was first used in 1919. It was designed to help the United States Army screen out recruits who might be susceptible to shell shock.
so, B is correct
Answer:
The answer is B, I hope this helps.
Suppose with 200 n of force applied horizontally to your 1500 n refrigerator that it slides across your kitchen floor at a constant velocity. what are the friction forces on the refrigerator?
Think about a point item (or particle) that is moving horizontally while being affected by a net force that is not zero. The object's acceleration is inversely proportional to its mass and to the strength of the applied force.
Known data:
The word "force" has a specific meaning in science. At this level, calling a force a push or a pull is entirely appropriate. A force is not something an object "has in it" or that it "contains." One thing experiences a force from another. There is no distinction between living and non-living things in the concept of a force.
Learn more about force:
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