The equipotential lines are the dotted lines in the diagram below. the circles represent sets of points that are equidistant from point p and only serve to give you a sense of scale. this circle on which point a is located represents a distance of 1 cm from point p.
(A) if the distance between points A and B is approximately 3.0 cm, what is approximate magnitude of the electric field between these two points?
(B) Rank the strength of the electric field at the points ABCDEFP from strongest to weakest. Explain how you determined your rankings.
(C) Draw an arrow at points A, B, C and D to indicate the electric field at those locations.
Answers
A) The approximate magnitude of the electric field between points A and B is 1.3 V/cm; B) The ranking from strongest to weakest electric field is B>A>C>D>E>F>P; C) The arrows indicating the electric field at points A, B, C, and D should be drawn perpendicular to the equipotential lines in the direction of decreasing potential.
Equipotential lines are imaginary lines that connect points in a space that have the same electric potential or voltage. They indicate areas of uniform electric potential in an electric field.
(A) To find the approximate magnitude of the electric field between points A and B, we need to use the formula:
E = ΔV / Δd
where ΔV is the potential difference between points A and B, and Δd is the distance between them. We can estimate ΔV by counting the number of equipotential lines between points A and B, which appears to be around 4. The distance Δd is approximately 3.0 cm. Therefore, the approximate magnitude of the electric field between points A and B is:
E = 4 / 3.0 ≈ 1.3 V/cm
(B) To rank the strength of the electric field at points ABCDEFP, we need to look at the spacing between the equipotential lines. The closer the lines are, the stronger the electric field. Based on the diagram, the ranking from strongest to weakest electric field is:
B > A > C > D > E > F > P
This ranking is determined by observing the spacing between the equipotential lines. The electric field is strongest at point B because the equipotential lines are closest together there, indicating a steep potential gradient.
(C) To draw arrows indicating the electric field at points A, B, C, and D, we need to draw the arrows perpendicular to the equipotential lines, in the direction of decreasing potential. The arrows should be longer where the equipotential lines are closer together. Based on the diagram, the arrows should be drawn as follows:
At point A, the arrow should point to the left, because the potential is decreasing in that direction.
At point B, the arrow should point to the left and be longer than the arrow at point A, because the potential gradient is steeper.
At point C, the arrow should point upward, because the potential is decreasing in that direction.
At point D, the arrow should point downward, because the potential is increasing in that direction.
Hence, The electric field between points A and B has an approximate magnitude of 1.3 V/cm; the order of the electric fields from strongest to weakest is B>A>C>D>E>F>P; and the arrows indicating the electric field at each of the four points should be drawn perpendicular to the equipotential lines in the direction of decreasing potential.
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Related Questions
Two clowns at a circus are performing an act in which one clown jumps down
on a seesaw and launches the other clown, who is standing on the opposite
end, as shown in the image below. Without losses due to friction or air
resistance, this process will go on forever in periodic motion. If the clown cn
the left has a mass of 75 kg and a starting height of 7 m, what is the
maximum height that the clown on the right can reach if she has a mass of
50 kg?
7m
Answers
Explanation:
mgh clown 1 = 75 kg * 9.81 m/s^2 * 7 m = 5150.25 J
= mgh of clown 2
5150.25 = 50 kg * 9.81 * h
h = 10.5 m for clown 2
A guitar string has a length of 65 cm (0.65 m). The frequency of C₂ is 65.4 Hz. The linear
mass density of the Az string is 0.0085 kg/m.
a) What is the frequency of Az? Use the tempered scale.
b) What is a wave speed of the second harmonic wave on the Az string!
c) What is the tension in this string?
Answers
The frequency of Az string is 0.818Hz.
Complete calculations of the string variablesRecall the formula:
f = (1/L) * sqrt(T/μ)
where
L = the length of the string,
T = the tension in the string,
μ = the linear mass density of the string,
f = the frequency.
Given
L = 0.65m, μ = 0.0085kg/m, and we want to find the frequency f.
To find the tension T, we can use the frequency of C₂, which is given as 65.4 Hz. The frequency of C₂ is related to the frequency of Az by the formula:
f(Az) = f(C₂) * 2^(n/12)
where n is the number of semitones between C₂ and Az. We can count the number of semitones using a piano keyboard or a frequency chart.
Az is two octaves lower than C₂, so n = -24.
Substituting the values, we get:
f(Az) = 65.4 Hz * 2^(-24/12) = 0.818 Hz
b) The wave speed of the second harmonic wave on the string can be found using the formula:
v = fλ
where
f = the frequency of the wave
λ = the wavelength
For the second harmonic wave, the wavelength is twice the length of the string, i.e:
λ = 2L = 1.3 m.
Substituting the values, we get:
v = (2f) * L = 2 * 0.818 Hz * 0.65 m ≈ 1.063 m/s
c) The tension in the string is given by the formula:
T = μ * f^2 * L^2
Substituting the values, we get:
T = 0.0085 kg/m * (0.818 Hz)^2 * (0.65 m)^2 ≈ 0.034 N
Therefore, the tension in the string is approximately 0.034 N.
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If the battery is 4.0V the voltmeter reading across R is 2.0V and the resistance per unit length of wire AX is 2 ohms per metre calculate the current in the circuit when AP is 40.0cm(neglect the internal resistance of the battery)
Answers
The current in the circuit is 2.5 A.
Voltage across the wire AX, V = 4 - 2 = 2V
Resistance per unit length of wire AX, R/l = 2 Ω/m
Length of the wire, l = 0.4 m
Resistance of the wire,
R = R/l x R
R = 2 x 0.4 = 0.8 Ω
According to Ohm's law, the current in the wire AX,
I = V/R
I = 2/0.8
I = 2.5 A
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If you apply a greater force the spring constant will be
Answers
If you apply a greater force the spring constant will remain the same, since it is a constant.
What is Hooke's law?This law states that the force applied to an elastic material is directly proportional to the extension of the material.
That is as the force applied to an elastic material increases the extension of the elastic material increases provided the elastic limit of the material is not exceeded.
Mathematically, this law can be written as;
F = kx
where;
F is the applied forcek is the spring constx is the extension of the materialSo when the force applied is increased, the extension of the material increases as well.
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Draw the following vectors: (answer key, just need them drawn)
Answers
The diagram representing the vectors, A, B, R, and C for each of the questions is in the image attached.
What is the direction of the vectors?The direction of any vectors shows the angle of the vector taken from the positive x-axis.
The direction of the given vectors is determined as;
4. Vector A = 10 cm/s at 15⁰
Vector B = 7 cm/s at 300⁰ = 7 cm/s at 30⁰
Vector R = 13.61 cm/s at 345.23⁰ = 13.61 cm/s at 75.23⁰
5. Vector A = 6 miles at 180⁰
Vector B = 8 miles at 230⁰
Vector R = 12.71 miles at 208⁰
6. Vector A = 14 N at 155⁰
Vector B = 22 N at 168⁰
Vector C = 18 N at 100⁰
Vector R = 46.8 N at 142.9⁰
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• find the position at = 2.0s of mortocylist heading east through a small city accelerated After he passed The Signpost maketing the city limit his constant acceleraccetereted acceleration at time t=0 was 4- 0m/s² he was 5.0m east of the signpost moving east at Velocity of 15 m/s-
Answers
At t = 2.0 s, the rider is 43.0 m east of the marker.
How to calculate position?To solve this problem, use the kinematic equation:
x = x₀ + v₀×t + (1/2)at²
where x = final position,
x₀ = initial position, v₀ = initial velocity,
a = acceleration, and t is the time.
Given that the motorcyclist has a constant acceleration of 4.0 m/s², and initially 5.0 m east of signpost moving east at a velocity of 15 m/s, initial position and velocity:
x₀ = 5.0 m
v₀ = 15 m/s
Now, find the position at t = 2.0 s:
t = 2.0 s
a = 4.0 m/s²
x = x₀ + v₀t + (1/2)at²
x = 5.0 m + 15 m/s(2.0 s) + (1/2)4.0 m/s²(2.0 s)²
x = 5.0 m + 30 m + 8.0 m
x = 43.0 m
Therefore, the position of the motorcyclist at t = 2.0 s is 43.0 m east of the signpost.
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A gasoline engine has a power output of 210 kW (about 282 hp ). Its thermal efficiency is 28.5%.
a) How much heat must be supplied to the engine per second? Express your answer in joules.
b) How much heat is discarded by the engine per second? Express your answer in joules.
Answers
The heat supplied the engine per second is 736 kJ and the heat discarded by the engine per second is 526 kJ.
A gasoline engine has a power output of 210kW and the effciency of engine is 28.5%. The Work done of the engine in time 1s is,
Work done = power × time
= 210 × 1
= 210 kJ
The work done of the engine is,W = 210 kW.
The efficiency of the engine,η = Work / (Qh)
Qh is the heat suppllied to the engine, η is the efficiency and is equal to 28.5 %
Qh = 210kW / (0.285)
= 736.8 kW
The heat discarded by the engine,
(Qc) = Qh - W'
= 736.8 - 210
=526.8 kW
The heat discarded by the engine, (Qc) = 526.8 kW
The heat supplied to the engine, (Qh) = 736.8 kW.
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What is the magnetic field at the position of the dot in (Figure 1)? Give your answer as the components of a vector.
Answers
Answer:
200000000000 x 10^-7
Explanation:
The Biot Savart Law defines fundamental quantitative relationship between an electric current and the magnetic field it produces, based on the experiments in 1820 of the French scientists Jean-Baptiste Biot and Félix Savart.
The Biot-Savart law is applied in a specific case by adding up the contributions to the magnetic field at a given point from the whole series of short current segments that constitute a specific conductor of whatever shape
Can you find out the answers of 20,21,22,23?
Answers
Sentences 20, 21, 22, and 23 can be completed as follows:
20. B. Ultraviolet is used to observe star birth and far away galaxies.
21. D. Radio waves is used to observe the depths of the Milky Way galaxy.
22. C. Gamma rays are used to observe supernova explosions and radioactive decay.
23. C. Wernher von Braun developed the V-2 rocket.
What are rays?Rays are beams of light and radiation that can be harmful when used wrongly or advantageous for scientific purposes.
As scientists study extraterrestrial bodies, they often have to use rays for their findings. Gamma rays are known for their use in observing supernova explosions. Also, Wernher Braun is attributed to the development of the V-2 rocket.
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How dose bohr’s work demonstrate the importance of communication in science?
Answers
Bohr's work demonstrates the importance of communication in science by making use of works communicated by other scientists.
About Bohr's workBohr's work on atomic structure and the quantization of energy demonstrated the importance of communication in science by highlighting the need for clear and effective communication between scientists from different fields.
Bohr's theory was based on the work of other scientists, including Planck and Einstein, and required collaboration and communication between physicists, chemists, and mathematicians.
By effectively communicating his ideas and working with others, Bohr was able to develop a groundbreaking theory that revolutionized the understanding of atomic structure and paved the way for future advances in physics and chemistry.
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What is one fitness resource that outside of the school that is available to high school students
Answers
Answer:
high school students toward fitness and sports activities taught in physical education, and the perceived effectiveness of their physical education curriculum for improving their fitness and skill levels
Explanation:
12. The distance an object has traveled when starting at an initial velocity is given by the equation:
d = vit +at². In the equation, vi represents the initial velocity, t represents the time traveled, and
a represents the acceleration. Solve the equation for a.
Answers
The equation for acceleration is:
a = (d - vi*t) / t²
The distance an object traveled when starting at an initial velocity isd = vit +at². represents the initial velocity
The distance an object has traveled when starting at an initial velocity is given by the equation:
d = vit + at²
To solve for acceleration, we need to isolate the term with "a" on one side of the equation. Let's begin by subtracting the first term on the right-hand side of the equation from both sides:
d - vit = at²
Next, we can divide both sides by t² to isolate "a":
a = (d - vit) / t²
Therefore, the equation for acceleration is:
a = (d - vi*t) / t²
1. What is blackbody radiation?
A. Electromagnetic
radiation absorbed by a heated object
B. Electromagnetic
radiation emitted by a heated object with no absorbing surfaces
C. Electromagnetic radiation emitted by a heated object with perfectly absorbing and
emitting surfaces
D. Electromagnetic radiation emitted by a cooled object
Answers
The car of mass mc rolls from rest with negligible friction down the curved ramp and around the circular loop. The initial height of the center of mass of the car is at height H. Assume the center of mass of the car is at a height equal to the diameter d of the loop when the car is at the top of the loop.
(a) In terms of the given quantities and any fundamental constants, derive an equation for the speed vtop at the top of the loop. (Neglect the rotational kinetic energy of the wheels).
(b) The car is upside down at the top of the loop. Derive an equation for the minimum speed vmin necessary to make the loop.
Answers
The speed at the top of the loop is √gR.
Let the starting point be A, the lower point of loop be B and the top of loop be C.
So, at A the car is having only potential energy.
PE = mgh
At B, the kinetic energy,
KE = 1/2 mv²
a) At point C,
mv²/R = mg
The velocity at the top point, v(C)
v(top) = √gR
b) According to Conservation of energy, at B and C,
1/2 mv(B)² = 1/2 mv(C)² + mg(2R)
v(B)² = gR + 4gR
Therefore, v(B) = √5gR
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A 1500, kg space probe is orbiting the Earth at a distance of 25 000. km from
the Earth's centre. The probe is hit head-on by a 2000. kg meteor moving at
1000, kph in the opposite direction. (see class example 2 for diagram). After the
completely inelastic collision, the meteorite and crumpled probe will fall
together into a lower orbit. Find the (average) radius of this new stable orbit.
(13 500 km-1.35x107 m)
Answers
The radius of the new stable orbit is around 13,500 kilometers.
How to calculate raduis of orbit?First, find the velocity of the meteor relative to the Earth, which is:
V = 1000 km/h = 1000/3600 km/s = 0.2778 km/s
Since the probe is in orbit, it has a velocity of:
Vp = √(GMe/Re)
Where G = gravitational constant,
Me = mass of the Earth, and
Re = distance from the center of the Earth to the probe's original orbit.
Plugging in the values:
Vp = √((6.6743 × 10⁻¹¹ m³/(kg s²)) x (5.972 × 10²⁴ kg) / (25000 km + 6371 km)) = 7.785 km/s
The total momentum of the system is conserved, so:
(meteor × V) + (probe × Vp) = (meteor + probe) × Vf
Where Vf = velocity of the combined mass after the collision.
Solving for Vf:
Vf = [(meteor × V) + (probe × Vp)] / (meteor + probe) = (2000 kg x 0.2778 km/s + 1500 kg x 7.785 km/s) / (2000 kg + 1500 kg) = 6.083 km/s
Now find the radius of the new orbit using:
Vf = √(GMe/Rnew)
Solving for Rnew:
Rnew = (GMe)/(Vf²) = (6.6743 × 10⁻¹¹ m³/(kg s₂)) x (5.972 × 10²⁴ kg) / (6.083 km/s)² = 1.35 × 10⁷ m = 13,500 km
Therefore, the new stable orbit has a radius of approximately 13,500 km.
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A device that changes only the direction of force is known as_____.
Answers
Answer:
The answer is a fixed pulley
OA. Elements in the same row of the periodic table have the same
number of electrons.
B. The periodic table is organized by atomic number.
OC. There are two different ways to number the groups of the perio
table.
OD. Each box on the table represents one element.
SUBMIT
Answers
The statement that is true about the periodic table is The periodic table is organized by atomic number. Option B
What is true about the periodic table?The periodic table is arranged by atomic number, which denotes the number of protons in an atom's nucleus.
Elements are organized in ascending atomic number sequence from left to right and top to bottom.
Given that the elements in the same column (group) often have comparable qualities due to the same amount of valence electrons, this organization allows the elements to be categorized based on their chemical properties.
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A pendulum of mass 12 kg is released from rest at some height, as shown by
point A in the image below. At the bottom of its arc at point B, it is traveling at
a speed of 19 m/s. What is the approximate amount of energy that has been
lost due to friction and air resistance? (Recall that: g = 9.8 m/s²)
20 m
A35
B186
C78
D112
Answers
The energy lost to friction and air resistance is 186 J.
option B.
What is the energy lost to friction and air resistance?The energy lost to friction and air resistance is calculated from the change in the mechanical energy of the pendulum.
The initial potential energy of the pendulum at the initial position is calculated as;
PEi = mghi
where;
m is the massg is gravityh is the initial heightP.Ei = 12 kg x 9.8 m/s² x 20 m
P.Ei = 2,352 J
The final kinetic energy of the pendulum is calculated as follows;
K.Ef = 0.5 x 12 kg x (19 m/s)²
K.Ef = 2,166 J
ΔE = 2,166 J - 2,352 J
ΔE = -186 J
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50 POINTS ANSWER CORRECTLY 4. Identify what elements are made in a Super Red Giant as it starts to die?
Answers
The super red giant star is the aging star and it is a dying star in the final stage of stellar evolution. From the burst of the super red giant star, magnesium is formed from the core of the red giant star.
The super red giant star has a larger mass and produces greater gravitational pressure. The giant red star is in the final stage of dying and the core of the red star has heavier elements like nitrogen, carbon, etc.
In the core of stars, nuclear fusion takes place. Nuclear fusion is the process of two lighter nuclei fusing or joining together to form a heavier nucleus.
The hydrogen fuses to form helium and helium fuses together to form carbon atoms. Carbon atoms fuse together to form oxygen atoms and it forms heavier elements like magnesium and iron.
Hence, from the burst of a super red giant star, heavier elements like magnesium, iron, carbon, and helium ions are formed.
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Two people hold a rope at either end. One person moves his end of the rope at a frequency of 4.0 Hz and a wavelength of 0.8 m. At what speed does the wave travel through the rope ?
Answers
Answer :
Speed = 3.2 m/sExplanation :
According to the question, It's given that Two people hold a rope at either end. One person moves his end of the rope at a frequency of 4.0 Hz and a wavelength of 0.8 m.
Frequency (f) = 4.0 HzWavelength [tex] (\lambda)[/tex] = 0.8 mWe know the relationship between frequency and Wavelength. It states that wave speed is equal to the product of frequency and Wavelength .
v = f [tex] \lambda[/tex]where,
f is frequency i.e 4.0 Hz , [tex] (\lambda)[/tex] is Wavelength i.e 0.8 mSubstituting the values,
[tex]: \implies[/tex]v = 4.0 × 0.8
[tex]: \implies[/tex] v = 3.2 m/s
Therefore, At the speed of 3.2 m/s the wave travel through the rope.
A dog starts from point A and moves 15m toward the east, then turns 90 degrees south and moves 3m. His displacement is
is the answer for this one 15.3m SE
Answers
The displacement of the dog from its starting point and the ending point is 15.3 m.
Displacement is defined as the shortest distance between two points and it is a vector quantity and the SI unit of displacement is meter.
From the given,
the starting point of the dog is 15m towards east.
the final point of the dog is 3m towards south.
Initially the dog is east and it moves towards south. By using pythagoras theorem, to find the hypotenuse (displacement (x)),
c² = a² + b²
c² = (15)² + (3)²
= (225+9)
= (234)
c = √(234)
= 15.29 m
The displacement of the dog from the starting and the ending point is 15.3 m.
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What is true about the requirements of your academic career plan
Answers
A true statement on the requirements of an academic career plan is that it can help you withstand challenges better as you know the direction you are trying to get to.
What is an academic career plan ?A student's personalized guide composed of their academic and professional objectives is known as an academic career plan. Such a plan illuminates the steps and resources they require to fulfill these aspirations.
It encompasses pinpointing said student's areas of expertise as well as areas in need of growth, discerning potential vocation paths, and determining which abilities, know-how, and experience they must accumulate. To efficiently reach their aims, they may utilize short and long-term goals, methodologies for accomplishing them, and frequent revisions to monitor progress.
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1. The wave speed of a wave through a medium is equal to the frequency times the wavelength. When the frequency changes, the wavelength must change to compensate. Why can't the velocity of the wave change?
a. The velocity of a mechanical wave is dependent on the medium
b. The wavelength is separate from the velocity, so it can change while the wavelength cannot
c. The velocity of the wave cannot change because it is set by the force that starts the oscillation
2. If a water wave has a velocity of 4.5 m/s and has a frequency of 25 Hz, what is the wavelength of the wave?
a. 0.80 m
b. 5.6 m
c. 0.18 m
Only answer if you know the right answer pls :)
Answers
1. The correct statement is "The velocity of a mechanical wave is dependent on the medium", and 2. The wavelength of the water wave is 0.18 m. The correct option for Question 1. is A and for Question 2 is C.
A mechanical wave is a type of wave that requires a medium to travel through, such as a solid, liquid, or gas. These waves propagate by transferring energy from one particle of the medium to the next. Examples of mechanical waves include sound waves, water waves, and seismic waves.
1. A. The velocity of a mechanical wave is dependent on the medium through which it travels. The speed of sound waves, for example, is different in air than it is in water. The velocity of a wave is not determined by its frequency or wavelength alone.
2. The formula relating wave speed, frequency, and wavelength is:
Wave speed = frequency x wavelength
Rearranging this formula to solve for wavelength, we get:
Wavelength = wave speed/frequency
Substituting the given values, we get:
Wavelength = 4.5 m/s / 25 Hz
Wavelength = 0.18 m
So, the wavelength of the water wave is 0.18 m.
Hence, The correct option for Question 1 is A. And for Question 2 is C.
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According to the graph, the average acceleration of the car from 0.0 s to 40.0 s is
a. 2.0 m/s²
C.3.5 m/s²
b. -2.5 m/s²
d.2.5 m/s²
Answers
The acceleration of the object is 2.5 m/s^2
What is acceleration?The idea that should be at the back of your mind when you hear the use of the term acceleration is the change in the velocity of the object with respect to the time.
In this case, we have to look at the graph that we have been given in the question. It is a graph of the velocity against the time and the slope of the graph is the acceleration of the motion that is under consideration.
a = 100 - 0/40 - 0
= 2.5 m/s^2
We have the acceleration as 2.5 m/s^2
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The circuit in Figure 32 includes a battery with a finite
internal resistance, . (a) Find the current flowing
through the and the resistors. (b) How much
current flows through the battery? (c) What is the potential
difference between the terminals of the battery?
Answers
The potential difference between the terminals of the battery is 4.8 V.
Internal resistance of the circuit, r = 50 Ω
The effective resistance of 4.5Ω and 1Ω and r,
Reff = 0.5 + 4.5 + 1
Reff = 6Ω
The effective resistance of 7.1Ω and 5.8Ω,
Reff = 7.1 + 5.8 = 12.9Ω
This 12.9Ω is parallel to the 3.2Ω. So,
Reff = 12.9 x 3.2/(12.9 + 3.2)
Reff = 2.56Ω
The effective resistance of 2.56Ω and 6Ω is the total resistance of the circuit.
R = 2.56 + 6 = 8.56Ω
Therefore, total current,
I = V/R = 12/6.56
I = 1.4 A
Potential across the left side, V' = 1.4 x 6
V' = 8.4 V
Potential across the right side, V'' = 12 - 8.4
V'' = 3.6 V
Therefore the potential difference = 8.4 - 3.6 = 4.8 V.
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Answer correctly ill give brainliest!! Describe how carbon was formed and eventually end up in your body. Your description needs to explain how a star was once born and eventually produced the carbon. Then you are to explain how that carbon end up in our planet and eventually ended up in your body. You need to be very specific and clear in your explanation. You will need more than one sentence to answer this question. Bonus if you incorporate the carbon cycle in your answer
Answers
Answer: Carbon is the chemical backbone of life on Earth. Carbon compounds regulate the Earth’s temperature, make up the food that sustains us, and provide energy that fuels our global economy.
A diagram of the carbon cycle with arrows showing the movement of carbon through a landscape with plants and animals, mountains and a volcano, a river leading to the ocean, and an industrial area. Carbon moves in and out of our atmosphere, ocean, waterways, and soil through burning fossil fuels, precipitation, fires, vegetation, volcanoes, and organic processes.
The carbon cycle. (Image credit: NOAA)
Download Image
Most of Earth’s carbon is stored in rocks and sediments. The rest is located in the ocean, atmosphere, and in living organisms. These are the reservoirs through which carbon cycles.
This graph shows the monthly mean carbon dioxide measured at Mauna Loa Observatory, Hawaii, the longest record of direct measurements of CO2 in the atmosphere.
Climate change: Atmospheric carbon dioxide
Carbon dioxide concentrations are rising mostly because of the fossil fuels that people are burning for energy.
Carbon storage and exchange
Carbon moves from one storage reservoir to another through a variety of mechanisms. For example, in the food chain, plants move carbon from the atmosphere into the biosphere through photosynthesis. They use energy from the sun to chemically combine carbon dioxide with hydrogen and oxygen from water to create sugar molecules. Animals that eat plants digest the sugar molecules to get energy for their bodies. Respiration, excretion, and decomposition release the carbon back into the atmosphere or soil, continuing the cycle.
The ocean plays a critical role in carbon storage, as it holds about 50 times more carbon than the atmosphere. Two-way carbon exchange can occur quickly between the ocean’s surface waters and the atmosphere, but carbon may be stored for centuries at the deepest ocean depths.
Rocks like limestone and fossil fuels like coal and oil are storage reservoirs that contain carbon from plants and animals that lived millions of years ago. When these organisms died, slow geologic processes trapped their carbon and transformed it into these natural resources. Processes such as erosion release this carbon back into the atmosphere very slowly, while volcanic activity can release it very quickly. Burning fossil fuels in cars or power plants is another way this carbon can be released into the atmospheric reservoir quickly.
A research vessel ploughs through the waves, braving the strong westerly winds of the Roaring Forties in the Southern Ocean, in order to measure levels of dissolved carbon dioxide in the surface of the ocean.
Southern Ocean confirmed as strong carbon dioxide sink
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Changes to the carbon cycle
Human activities have a tremendous impact on the carbon cycle. Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere. As a result, the amount of carbon dioxide in the atmosphere is rapidly rising; it is already greater than at any time in the last 3.6 million years. The ocean absorbs much of the carbon dioxide that is released from burning fossil fuels. This extra carbon dioxide is lowering the ocean’s pH, through a process called ocean acidification. Ocean acidification interferes with the ability of marine organisms (including corals, Dungeness crabs, and snails) to build their shells and skeletons.
An aerial view of Century City section of Los Angeles, California.
Atmospheric carbon dioxide rebounds as global pollution rates approach pre-Covid levels
Global carbon emissions are projected to bounce back to after an unprecedented drop caused by the response to the coronavirus pandemic, according to an annual report by the Global Carbon Project.
EDUCATION CONNECTION
Take a bite of dinner, breathe in air, or a drive in a car — you are part of the carbon cycle. The resources in this collection provide real world examples of the changes occurring in the cycle. There is much to learn about this essential topic, and some of the resources highlight exciting career opportunities in this field of study.
Explanation: learn from a middle schooler like me smart
Carbon was formed in stars through nuclear fusion and scattered into space when the star died. Carbon was incorporated into organic molecules through photosynthesis and eventually became part of animals' bodies. The carbon cycle involves the uptake of carbon dioxide by plants, transfer to animals, and release back into the atmosphere through respiration and decomposition, and human activities have disrupted this cycle.
Carbon was formed in the universe through nuclear fusion reactions that took place in the cores of stars. These reactions fused lighter elements into heavier ones, including carbon. When the star eventually died in a supernova explosion, the carbon and other elements were scattered into space.
The carbon, along with other elements, eventually formed clouds of gas and dust that coalesced to form new stars and planets. On our planet, carbon was incorporated into organic molecules through photosynthesis by plants and other photosynthetic organisms. These organic molecules were then consumed by animals, which allowed the carbon to become part of their bodies.
The carbon cycle is the process by which carbon moves through the Earth's atmosphere, oceans, and biosphere. This cycle involves the uptake of carbon dioxide by plants through photosynthesis, the transfer of carbon from plants to animals through the food chain, and the release of carbon back into the atmosphere through respiration and decomposition. Human activities, such as the burning of fossil fuels, have disrupted this cycle, leading to increased levels of carbon dioxide in the atmosphere and contributing to climate change.
Therefore, Nuclear fusion in stars produces carbon, which is then released into space when the star dies. By photosynthesis, carbon was added to organic molecules, eventually becoming a component of animal bodies. Human activities have interrupted the carbon cycle, which involves the intake of carbon dioxide by plants, its transport to animals, and its release back into the atmosphere through respiration and decomposition.
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A physical science test book has a mass of 2.2 kg what is the weight on the earth 4 box method
Answers
The weight of the box is determined as 21.56 N.
What is the weight of the box?The weight of the box is calculated by applying Newton's second law of motion as shown below;
F = mg
where;
m is the mass of the boxg is acceleration due to gravityThe weight of the box is calculated as follows;
W = 2.2 kg x 9.8 m/s²
W = 21.56 N
Thus, the weight of the box is determined by multiplying the mass and acceleration due to gravity.
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A student is investigating what happens when a neutral metal sphere sitting on an insulated stand is touched by negatively charged rod. the set up for the students investigation as shown in the diagram. what will happen to the excess electrons when the negatively charged rod touches the medal sphere 
Answers
The sphere will become negatively charged.
What happens?When a neutral metal sphere comes into touch with a negatively charged rod, some of the excess electrons from the rod move to the sphere, making it negatively charged.
The extra electrons that are delivered to the sphere will disperse uniformly across its surface, rejecting one another and maintaining the surface by means of electrostatic forces.
Until the negative charge is discharged or somehow neutralized, the sphere will remain negatively charged.
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21.
is a process that returns to its beginning and repeats itself in the same sequence.
a. Cycle
b. Heat
c. Amplitude
Answers
Answer:
The Correct answer is A
cycle
Answer:
A. Cycle A cycle is a series of events or processes that is repeated again and again, always in the same order.
Explanation:
name the five major kingdoms in the classification of living organism
Answers
Explanation:
Kingdom moneraKingdom protistaKingdom planteaKingdom animaleaKingdom Fungi