Why does reduction in soil moisture content pose an impending disaster for many areas in the world?
Answers
The study, which was published in Nature, demonstrates that soil moisture levels, which are influenced by temperature increases and extreme weather conditions like droughts, can have a "significant negative influence" on a region's capacity to store carbon.
It concludes that the "CO2 fertilizations effect," a process wherein rising CO2 levels in the atmosphere boost the growth and, consequently, carbon uptake of plants, would likely cause an increase in the pace at which land absorbs carbon until the second part of this century.
The lead author told Carbon Brief that after this, the fertilizations is anticipated to "hit a pinnacle". This peak, when paired with the detrimental effects of soil moisture changes, could significantly shift the land's role as a carbon sink to source greatly accelerating climate change.
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Related Questions
please help :(
3.) What is the physical quantity which
represents the basis of the functioning of a
loudspeaker?
4.) Why doesn't a direct current operate a
loudspeaker?
Answers
4. A direct current will cause momentary movement in one direction only. For the speaker to produce sound you would need alternating current which makes the cone vibrate back & forth.
Topics such as leadership, teams, or motivation are considered to be on the "industrial" side of I/O psychology. True or False?
Answers
The given statement " Topic such as leadership, teams, or motivation are considered to be on the industrial side of I/O psychology" is true
Leadership, teams, and motivation are considered to be on the "industrial" side of I/O (Industrial-Organizational) psychology. Industrial psychology focuses on the individual worker and their job performance, while organizational psychology focuses on the interactions between individuals and groups within an organization.
Leadership research in I/O psychology examines the traits, behaviors, and styles of effective leaders and how they impact employee performance and satisfaction. Team research explores how groups of employees work together, communicate, and solve problems to achieve shared goals
Topics such as leadership, teams, and motivation are all concerned with improving organizational effectiveness, making them part of the organizational side of I/O psychology.
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a lion is running at constant speed toward a gazelle that is standing still, as shown in the top figure above. after several seconds, the gazelle notices the lion and accelerates directly toward him, hoping to pass the lion and force him to reverse direction. as the gazelle accelerates toward and past the lion, the lion changes direction and accelerates in pursuit of the gazelle. the lion and the gazelle eventually each reach constant but different speeds. which of the following sets of graphs shows a reasonable representation of the velocities of the lion and the gazelle as functions of time?
Answers
The graph shown in the first option nicely plots the lion's and gazelle's velocities as a function of time, so option A is the correct answer.
Velocity is the rate of change of displacement over time.
It has SI units as m/s.The total amount of movement of an object per unit time is also called velocity. It depends on both the size and direction of the moving object.Velocity can also be called as speed when distance is taken into consideration instead of displacement.As mentioned in the problem of running at a constant speed towards a gazelle with a standing lion as shown above.
So option A is correct.
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calculate the x component and the y component of the vector with magnitude 24.0 m and direction 56.0degree
Answers
The X component was 13.4m and the Y component was 19.9m.
define magnitude ?
A crucial question in science is undoubtedly what is magnitude in physics. Magnitude is a term used to describe size or distance. We can connect the amount of the movement to the size and movement speed of the item.
The magnitude of a thing or a quantity is its size. A automobile moves at a quicker pace than a motorcycle, just like in terms of speed. In this situation, the car's speed is greater than the motorbike's. Let's now talk about what magnitude means in physics.
y=m sin(∅)
x=m cos(∅)
y=2+sin(56)=19.89
=19.89 ≈ 19.9m
x=2+cos(56)=13.42
=13.42≈13.4m
The X component was 13.4m and the Y component was 19.9m.
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Please help asap its for anatomy
explain the basic mechanical process through which micturition occurs, including an explanation of why someone might not be able to "hold it in" any longer if they wait too long to urinate and why it might be harder for older people to hold their urine for a long time
Answers
The smooth muscle in the wall of the bladder when stretched triggers the micturition reflex (urination).
What is a Bladder?This is defined as a lined layers of muscle tissue that stretch to hold urine in organisms.
In older people the elasticity of the bladder is reduced which is why it makes it harder for them to hold urine for a long time.
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What are the possible values of the principal quantum number n?
A. represented by the formula: kl, where k is a positive integer
B. all the integer: -3, -2, -1, 0, 1, 2, 3, etc.
C. represented by the formula: n = 2k + 1, where k is a positive integer
D. all the positive integers: 1, 2, 3, etc.
E. all the non-negative integers: 0, 1, 2, 3, etc.
Answers
The principal quantum number is the number of shells of an atom. So it can only be positive integers. So the correct answer is option D.
Quantum numbers are the numbers which represent the position and energy of an electron in an atom. There are four quantum numbers.
Principal quantum number - Denoted by the letter "n" and they represent the main shell where the electron is present. So if n=1, first shell, n=2 second shell and so on. So n is always represented as a positive integer. Azimuthal quantum number - It represents the subshells s,p,d and f with numbers 0,1,2 and 3 respectivelyMagnetic quantum number- It denotes the orientation of the orbital. Number of orientations is calculated by (2l +1).Spin quantum number- It represents the spin of the electrons. It can have two values +1/2 and -1/2.So principal quantum number can have positive integer as values. So option D is correct.
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as the pressure of an enclosed gas decreases to half its original value, what happens to the volume of the gas if temperature is held constant?(1 point)
Answers
Answer:
See below
Explanation:
P1V1/T1 = P2V2/T2 IF T1 = T2
Then
P1V1 = P2V2 P2 = 1/2 P1
P1V1 = 1/2 P1 V2 DIVIDE BOTH SIDES BY P1
V1 = 1/2 V2 MULTIPLY BOTH SIDES BY 2
2V1 = V2 OR V2 = 2 V1 THE NEW VOLUME IS TWICE ORIGINAL
PLEASE HELP IM BEGGING An object takes 5.91 Earth years to orbit the Sun. What is its average distance from the Sun? Make sure to show ur work
Answers
The average distance of the object from the Sun is 4.88 x 10¹¹ m.
What is the average distance from the Sun?
The average distance from the sun is calculated as follows;
(T² / a³) = (4π² / GM)
Where;
T is the orbital period, a is the semi-major axisG is the gravitational constantM is the mass of the Sun.a = (GMT² / 4π²)^(1/3)
a = [(6.67 x 10⁻¹¹ x 1.989 x 10³⁰ x (5.91 x 3.15 x 10⁷)² / (4π²)]^(1/3)
a = 4.88 x 10¹¹ m
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How are objects identified and categorized in space;
list Three(3)
Answers
Explanation:
There are several methods to identify and categorize objects in space but the 3 important are:
•Mass/Size
•Revolution
•Gravity
Example:
If you look at the planet Mars you will identify it by many methods but the basic way to indentify it is by looking at it's gravitational pull, Mass and size of the planet and the revolution of the planet around the star.
You can also identify them by looking at their elements present in it (like mars is red due to presence of high amount of iron/red soil in it), and Like Saturn is mostly identified by it's rings. It's not always about planets but it's also about the asteroids, stars, Natural satterlites of planets (like moon) and more.
Hope this helps you
Have a nice day :)
moment of inertia times angular velocity; measured in units of mass times units of velocity or expressed as kilogram-meters squared per second in si; a vector quantity.
Answers
The quantity that is expressed as the product of moment of inertia and angular velocity is known as angular momentum.
Angular momentum is a vector quantity and is measured in units of mass times units of velocity, which is equivalent to kilogram-meters squared per second in SI units. It represents the rotational analog of linear momentum and is important in understanding the conservation of angular momentum in rotating systems.
The concept of angular momentum, which involves moment of inertia and angular velocity. Angular momentum (L) is the product of an object's moment of inertia (I) and its angular velocity (ω). It can be represented mathematically as:
L = I * ω
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The moment of inertia times angular velocity is a measure of rotational motion and is expressed as the ˘ of the moment of inertia and the angular velocity. The units of velocity are typically meters per second (m/s) or radians per second (rad/s), depending on the context.
The units of moment of inertia are kilograms times meters squared (kg x m²). When these units are multiplied together, the resulting unit is kilogram-meters squared per second (kg x m²/s), which is the SI unit for angular momentum. Since angular momentum is a vector quantity, it has both magnitude and direction.
I is the moment of inertia, a measure of an object's resistance to rotational motion, and is typically determined by the object's mass distribution and geometry.
ω is the angular velocity, a measure of how fast an object rotates about a specific axis, and is typically expressed in radians per second (rad/s).
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help......,.........................
Answers
Answer:
Explanation:
R1= (1/6 + 1/6)rised to -1 = 3 ohm
R total = R1 + 6 = 3+ 6 = 9 ohm
In Racial Formations by Michael Omi and Howard Winant, race is defined as a socio historical concept, what does that mean
to the authors? Explain how race is
socially constructed or strictly biological. Support your response with two paragraphs.
Answers
Yes I agree. The socio historical concept implies that race is created and maintained through systems of power and inequality.
What is race?According to Michael Omi and Howard Winant, in "Racial Formations," race is a socio-historical concept that is constructed through the intersection of cultural, political, and economic forces.
In this book, they argue that race is not an immutable, biologically determined characteristic of individuals or groups but rather a social construct that is created and maintained through systems of power and inequality. The authors illustrate how race is constructed through examples from different historical periods and social contexts.
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Which type radiation can be observed well from Earth's surface?
Answers
Answer:
Eletromagnetic radiation which is also known as visible light.
Explanation:
Answer:
Gamma Ray's as they have the shortest wavelength and highest frequency in the electromagnetic Spectrum.
Light waves are electromagnetic waves that travel at 3.00 x 10^8 m/s. The eye is most sensitive to light having a wavelength of 5.50 x 10^-7 m.
a. Find the frequency of this light wave.
b. Find its period.
Answers
Answer:
a. Frequency is 5.45 x 10^14 hz
b. The period = 1.8 x 10^-15 sec {or 1.8 femptoseconds]
Explanation:
The velocity of an electromagnetic wave is given by the product of the wave's frequency(f) times its wavelength(λ).
V = λ f where,
V is the wave speed,
f is the wave frequency,
λ is the wavelength.
To find frequency, rearrange to:
f = V/ λ
Light travels at 3.00x10^8 m/sec.
λ is 5.50 x 10^-7 m
f = (3.00x10^8 m/sec)/(5.50 x 10^-7 m) meters cancels, secs is on the bottom]
f = (3.00/5.50)*(10^15) [The base 10 exponent on the bottom ius subtracted from the one on top: 98-(-7)) = 15)
f = 0.545 x 10^15 1/s or hz
f = 5.45 x 10^14 hz
b. The period of a wave is the inverse of it's frequesncy. It is the time it takes for 1 wave to pass. Invert the frequency:
Period = 1/f
Period = 1/(0.545 x 10^15 1/s)
Period = 1.8 x 10^-15 sec {or 1.8 femptoseconds]
a bat at rest sends out ultrasonic sound waves at 51.0 khz and receives them returned from an object moving directly away from it at 30.0 m/s .
Answers
The object is moving away from the bat at a speed of 0.3502 m/s. The negative sign indicates that the object is moving away from the bat.
A bat sends out ultrasonic sound waves at 51.0 kHz and receives them back from an object moving directly away from it at 30.0 m/s. To determine the speed of the object, the bat measures the frequency shift between the emitted and received sounds.
The frequency shift can be calculated using the Doppler effect formula:
Δf/f = v/c, whereΔf is the frequency shift, f is the frequency of the sound , v is the speed of the object, and c is the speed of sound in air.
When the object is moving away from the bat, the frequency shift is negative. This is because the sound waves emitted by the bat are stretched out, which causes the frequency to decrease. The bat can use the frequency shift to determine the speed of the object.
The speed of the object can be calculated using the formula:
v = (Δf/f) x c
The frequency shift is given by:
Δf/f = (v/cosθ - v)/c , whereθ is the angle between the direction of motion of the object and the direction of the emitted sound waves.
Substituting the given values, we get:
Δf/f = (-30.0 m/s / (340 m/s/cos(180°)) / (51,000 Hz)≈ -0.00103
The speed of sound in air is approximately 340 m/s.
Therefore, the speed of the object is: v = (-0.00103) x (340 m/s)≈ -0.3502 m/s
The negative sign indicates that the object is moving away from the bat.
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A 5.00 kg crate is on a 21.0° hill.
Using X-Y axes tilted down the
plane, what is the y-component
of the weight?
(Unit = N)
Answers
Answer:
17.56 N
Explanation:
Given that,
Mass of a crate, m = 5 kg
It is on a 21.0° hill
We need to find the y component of the weight.
y component = mgsinθ
Put all the values,
y-component = 5×9.8×sin(21)
= 49×sin(21)
= 17.56 N
So, the y-component of the weight is 17.56 N.
Answer:
-45.745
Explanation:
it is negative because it is downwards.
Greenhouse A. Open system B. Closed system C. Isolated system
Answers
In an open system, both energy and matter are exchanged with the surroundings.
In a closed system, only energy is exchanged with the surroundings.
In an isolated system, neither matter nor energy is exchanged with the surroundings.
In the greenhouse, only energy is exchanged with the surroundings.
Thus, the greenhouse is a closed system.
derive the relation : P = DHG
pLZ FAST
Answers
Explanation:
what that even is a subject
Answer:
P = F/A ( Force / Area)
P = mg / A ( Force = Mass × Acceleration due to gravity)
P = d×v×g / A ( Density = Mass / Volume)
P = d×A×h×g / A ( Volume = Area × Height)
P = dhg ( Area is cut )
Explanation:
Hence, P = DHG
Nazim measures his weight by standing on the bathroom scale on both feet. He then lifts one of his feet. What do you think will happen to his weight now?
Answers
Answer:
The weight would be the same
Explanation:
Just like Nazim who was on a scale, I had to stand on a scale and repeat what Nazim did in order to answer this question properly.
When one foot is lifted, the surface pressure reduces compared to when both feet were on the scale. This is because lifting the fiit makes the weight distribution to be less balanced thereby reducing it. But weight would still remain the same since the scale reads weight and not the pressure.
A live electrical circuit is _____. a. one that is being supplied with energy b. always the first circuit to be moved from a congested workspace c. used to drain power from the system d. always the safest circuit to work around
Answers
A live electrical circuit is one that is being supplied with energy . The option A is correct answer.
A live electrical circuit refers to a circuit that is currently being supplied with electrical energy. This means that the circuit is actively conducting electricity and poses potential hazards if not handled properly. It is crucial to exercise caution when working with live circuits, as they carry the risk of electric shock or fire.
Therefore, live circuits should be approached with care and appropriate safety measures, such as wearing protective gear and ensuring the power source is properly shut off before working on them. A live electrical circuit is a circuit that is connected to a power source and actively conducting electricity.
It means that the circuit is energized and has the potential to deliver electrical energy to connected devices or components. When a circuit is live, it carries electrical current, which consists of the movement of charged particles, usually electrons, through a conductive path.
This movement of electrons creates an electric field and can produce various effects, such as generating heat, producing light, or powering electrical devices. Working with live circuits can be dangerous if proper precautions are not taken. So, the correct answer is option A.
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which is the correct statement regarding the work and impulse required to move a box on the floor i) from 2v to 3v; and ii) from 3v to 4v? a box is shown on a horizontal surface. which is the correct statement regarding the work and impulse required to move a box on the floor i) from 2v to 3v; and ii) from 3v to 4v? a box is shown on a horizontal surface. case i requires more work, but i and ii require the same amount of impulse; case i requires less impulse, but i and ii require the same amount of work; case i requires less work, but i and ii require the same amount of impulse; case i requires more impulse, but i and ii require the same amount of work; the two cases require the same amount of work and impulse;
Answers
The correct statement regarding the work and impulse required to move a box on the floor from 2v to 3v and from 3v to 4v is Case i requires less work, but i and ii require the same amount of impulse.
W = ΔKE
W = Work done
ΔKE = Change in Kinetic energy
ΔKE = 1 / 2 m ( v2 - v1 )²
J = m Δv
J = Impulse
m = Mass
Δv = Change in velocity
For ( i ),
W = 1 / 2 m ( ( 3 v )² - ( 2 v )² )
W = 1 / 2 m ( 9 v² - 4 v² )
W = 2.5 m v²
J = m ( 3 v - 2 v )
J = m v
For ( ii ),
W = 1 / 2 m ( ( 4 v )² - ( 3 v )² )
W = 1 / 2 m ( 16 v² - 9 v² )
W = 3.5 m v²
J = m ( 4 v - 3 v )
J = m v
Therefore,
i ) W1 < W2
ii ) J1 = J2
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"feedback control of dynamic systems 8th edition pdf" who wrote that ?
Answers
The book "Feedback Control of Dynamic Systems 8th Edition" was written by Gene F. Franklin, J. Da Powell and Abbas Emami-Naeini.
What is Feedback Control of Dynamic Systems about?"Feedback Control of Dynamic Systems" is a textbook that provides an introduction to control theory, feedback control, and the analysis and design of control systems. The book covers a range of topics, including mathematical modeling, feedback control, time and frequency domain analysis, stability, and controller design.
It is commonly used as a textbook in undergraduate and graduate courses in electrical and mechanical engineering, as well as in other related fields. The eighth edition of the book, published in 2019, is written by Gene Franklin, J. Da Powell, and Abbas Emami-Naeini.
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PLEASE HELP ME! do tectonic plates play a major or minor role in the ROCK CYCLE
Answers
Answer: All igneous rocks the basis of the rock cycle is formed by plate tectonics. ... This movement from igneous to sedimentary back to igneous is a major part of the rock cycle. The heat from the mantle that fuels plate tectonics causes both igneous and sedimentary rocks to be turned into metamorphic rocks.
Explanation: BRAINLEST?
Partially correct answer icon Your answer is partially correct. An electron starts from rest in a vacuum, in a region of strong electric field. The electron moves through a potential difference of 28 volts. What is the kinetic energy of the electron in electron volts (eV)
Answers
The kinetic energy of the electron in electron volts (eV) after moving through a potential difference of 28 volts is approximately 28 eV.
The kinetic energy of an electron can be calculated using the equation:
Kinetic Energy (KE) = qV
Where q is the charge of the electron and V is the potential difference.
The charge of an electron is approximately -1.6 x 10⁻¹⁹ coulombs.
Given that the potential difference is 28 volts, we can substitute the values into the equation:
KE = (-1.6 x 10⁻¹⁹ C) * (28 V)
Simplifying the calculation:
KE ≈ -44.8 x 10⁻¹⁹ J
To convert the energy to electron volts (eV), we can use the conversion factor:
1 eV= 1.6 x 10⁻¹⁹ J
Therefore:
KE ≈ (-44.8 x 10⁻¹⁹ J) / (1.6 x 10⁻¹⁹ J/eV)
KE ≈ -28 eV
Since kinetic energy is always positive, we can disregard the negative sign and state that the kinetic energy of the electron is approximately 28 eV.
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an isolated conducting rod of length 8.00 cm is oriented parallel to the x-axis. it moves in the y-direction at 3.90 m>s in the presence of a uniform magnetic field of magnitude 0.600 t that points in the -z-direction. find (a) the magnitude of the motional emf in the rod and (b) the magnitude and direction of the electric field produced in the rod.
Answers
(a) The magnitude of the motional emf in the conducting rod is 1.87 V. (b) The magnitude of the electric field produced in the rod is 2.34 × 10⁵ V/m, and it points in the -x-direction.
To find the motional emf, we use Faraday's law of induction, which states that the emf induced in a closed loop is equal to the negative rate of change of magnetic flux through the loop. The rod is moving in the y-direction, so the magnetic flux through the loop (which is the length of the rod times the magnetic field strength) is changing at a rate of -0.024 T·m²/s. Thus, the magnitude of the motional emf is given by:
|emf| = |dΦ/dt| = 0.024 T·m²/s × 8.00 cm = 1.87 V
To find the electric field produced in the rod, we use the equation for the motional emf in a conductor:
emf = ∫ E · dl
where E is the electric field and dl is an element of length along the conductor. Since the rod is moving perpendicular to its length, the electric field produced in the rod is parallel to the x-axis. Thus, the integral reduces to:
emf = E ∫ dl = El
where l is the length of the conductor. Solving for E, we get:
E = emf/l = 1.87 V / 8.00 cm = 2.34 × 10⁵ V/m
Since the rod is moving in the positive y-direction, the direction of the electric field is opposite to the direction of motion, i.e. it points in the -x-direction.
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"true wisdom is knowing what you don't know"
Reader's Response/explanation
(Y'all I need help)
Answers
Answer:
“The only true wisdom is in knowing you know nothing.” ― Socrates. Socrates had it right. Remain humble and appreciate the fact that you don't know everything. ... Thankfully, one's search for knowledge has no end as there is always something new to learn, giving one's life meaning and purpose.
Explanation:
Answer:
knowing wisdom cool
Explanation:
lol
A sound wave generated by a musical note has the characteristics presented
in the table. What is the missing value?
Medium
Wave speed
(m/s)
346
Frequency
(Hz)
Wavelength
(m)
Air
55
?
Glass
5,640
55
102
Aluminum
6,420
55
117
A. 5.4
B. 4.7
C. 6.3
O
D. 7.5
Answers
Answer:
Explanation:subtract all of those by the all of the other numbers and that’s the answer i think that’s the way I learned it
If the unbalanced force is -20.0 N and the mass of the object is 3.75 kg, what is the acceleration of the the object while this force is acting?
Answers
Answer:
a=-5.3m/s2
Explanation:
F=-20N
m=3.75kg
a=?
F=am /:m
a=F/m
a=-20N/3.75kg
a=-5.3m/s2
4) Explain which electric charges attract and which electric charges repel (push away)
Answers
Explanation:
According to the fundamental law of electrostatics, like charges which are ( only positive or only negative charges) repel while unlike charges which are ( positive and negative charges ) attract each other.
that is: ( +++++ ++++++) they repel
while ( +++++++ ———) they attract
A grapefruit has a weight on Earth of 4.9 newtons. What is the grapefruit’s mass?
Answers
Answer:
0.5 kg
Explanation:
W = mg
4.9 = m(9.8)
4.9 = 9.8m
4.9/9.8 = m
m = 0.5 kg