A 3.00-cm-diameter parallel-plate capacitor with a spacing of 0.600 mm is charged to 500 V .What is the total energy stored in the electric field?What is the energy density?Show all work thanks.
Answers
The total energy stored in the electric field is U= 5.789*10^(-13)
The energy density u= 0.06548555 J/m³
Electrical energy: The capacitor's total electrical energy (U) is calculated as follows:
U= ½ CV²
The ratio of the charge on a capacitor to its potential is referred to as the capacitor's capacitance. The charge Q has a direct relationship with the electric field in the space between the conductors.Potential often refers to a skill that is still being developed. The phrase refers to things that are in a condition where they have the capacity to change, from the simple release of energy by items to the manifestation of skills in individuals. It is used in a wide range of disciplines, from physics to the social sciences.The quantity of energy that may be held in a system or area of space per unit volume is known as energy density. It is occasionally mistaken with specific energy, also known as gravimetric energy density, or energy per unit mass.The accompanying image has a clear explanation.
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Related Questions
(ecology) food chain gizmo:
was your hypothesis correct? why or why not?
why is it important to know how the ecosystem interacts?
what were a few potential sources of error in this experiment?
what are future experiments that could be conducted based on your results?
Answers
It's important to understand how the ecosystem interacts because it helps us manage natural resources, conserve biodiversity, and maintain ecological balance. In the food chain gizmo, whether your hypothesis was correct or not depends on the specific prediction you made.
However, knowing the interactions among organisms within a food chain is essential for making accurate predictions.
A few potential sources of error in this experiment might include inaccurate measurements, inconsistencies in the conditions, and the simplified nature of the gizmo, which might not fully represent a real ecosystem. Future experiments could focus on understanding the effects of environmental changes or human activities on food chains, the role of specific organisms in maintaining ecosystem stability, and the influence of invasive species on native food chains. These studies will help improve our understanding of ecosystems and inform better conservation strategies.
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You stand on a merry-go-round which is spinning at f = 0:25 revolutions per second. You are R = 200 cm from the center. (a) Find the angular speed ! At which it is spinning. (b) Find the centripetal acceleration, ac with which it is spinning. (c) What is the minimum coefficient of static friction is between your shoes and the floor that will keep you from slipping off?
Answers
Answer:
(a) ω = 1.57 rad/s
(b) ac = 4.92 m/s²
(c) μs = 0.5
Explanation:
(a)
The angular speed of the merry go-round can be found as follows:
ω = 2πf
where,
ω = angular speed = ?
f = frequency = 0.25 rev/s
Therefore,
ω = (2π)(0.25 rev/s)
ω = 1.57 rad/s
(b)
The centripetal acceleration can be found as:
ac = v²/R
but,
v = Rω
Therefore,
ac = (Rω)²/R
ac = Rω²
therefore,
ac = (2 m)(1.57 rad/s)²
ac = 4.92 m/s²
(c)
In order to avoid slipping the centripetal force must not exceed the frictional force between shoes and floor:
Centripetal Force = Frictional Force
m*ac = μs*R = μs*W
m*ac = μs*mg
ac = μs*g
μs = ac/g
μs = (4.92 m/s²)/(9.8 m/s²)
μs = 0.5
Find the potential function and the gravitational field intensity function inside and outside of a thin ring with Radius R, in terms of r (the distance from the center of the ring to the field point.) Note: inside R >r, outside r>R. the function will be different.
Answers
The potential function and the gravitational field intensity function inside and outside of a thin ring with radius R, in terms of r (the distance from the center of the ring to the field point), are as follows:
Inside the ring (r < R): The potential function is given by V = -GM/r, and the gravitational field intensity function is E = GM/r², where G is the gravitational constant and M is the mass of the ring.
Outside the ring (r > R): The potential function is V = -GM/r + GM/R, and the gravitational field intensity function is E = GM/r², where G is the gravitational constant, M is the mass of the ring, and R is the radius of the ring.
Inside the ring (r < R), the potential function is given by V = -GM/r. This represents the gravitational potential due to the mass of the ring at a point inside the ring. The negative sign indicates that the potential decreases as the distance from the center of the ring decreases. The gravitational field intensity function is E = GM/r², representing the strength of the gravitational field at a point inside the ring. The field intensity decreases as the distance from the center of the ring increases, following an inverse square relationship.
Outside the ring (r > R), the potential function is V = -GM/r + GM/R. In addition to the potential due to the mass of the ring, there is an additional potential term GM/R, which arises from considering the ring as a point mass located at its center. The gravitational field intensity function remains the same as E = GM/r², indicating that outside the ring, the gravitational field follows an inverse square relationship with the distance from the center of the ring.
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two horizontal wires with identical currents carry current directly towards you. the magnetic field exactly mideway between wires as viewed from your position is
Answers
The magnetic field exactly midway between the wires, as viewed from your position, is zero.
Explanation:-
When two horizontal wires with identical currents carry current directly towards an observer, the magnetic field exactly midway between the wires, as viewed from the observer's position, is zero or no magnetic field is produced due to the wires. This is because the magnetic fields produced by both wires cancel each other out.
Let’s first talk about the direction of the magnetic field produced by the wires.
According to the right-hand rule, the magnetic field for a current-carrying wire points towards the direction of the curl of fingers of the right hand when the thumb points in the direction of the current.
A current flowing in the plane of the page towards an observer means that the current is pointing out of the page. Therefore, the magnetic field due to each wire will be pointing in the direction perpendicular to the current-carrying wire in a counterclockwise direction (as viewed from above).
So, if we look at the point directly midway between the two wires, we will see that the magnetic fields from each wire are equal in magnitude and opposite in direction. As a result, they will cancel each other out at the midpoint and there will be no net magnetic field there.
Therefore, the answer is that the magnetic field exactly midway between the wires, as viewed from your position, is zero.
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se ocane ha un cane di chi è il cane
Answers
Answer:D ocane
Explanation:
Answer: Di Ocane
Explanation:
URGENT: true or false: liquids can be poured from one container to another because there are no attraction forces between atoms or molecules
Answers
Answer:
False
Explanation:
It's common sense
Answer:
True
Explanation:
Water doesnot have any definite shape.There is less attraction between particles .Hence water can move one container to anotherWhich of the following is/are true about the tires?
(A) The direction of the frictional force acting on the front tire and the rear tire of a bicycle is opposite when the bicycle is accelerating along a straight line;
(B) Given two tires which have the same contact surface area on the road and are made of the same material. In dry weather, the one with tread has better traction on the road than that of the one without tread
(C) The directional tires perform better than the non-directional tines in wed weather;
(D) Both (A) and (C).
Answers
Tread patterns on tires, the frictional force on the rear tire is in the backward direction, providing the necessary traction for the bicycle to move forward. And directional tires, designed with specific tread patterns to channel water away from the center of the tire, perform better than non-directional tires in wet weather.
Statement (A) is true. When a bicycle is accelerating along a straight line, the frictional force acting on the front tire is in the forward direction, opposite to the direction of motion.
Statement (B) is true. Tires with tread patterns provide better traction on the road in dry weather compared to tires without tread. The tread patterns help to increase the surface area of contact between the tire and the road, improving grip and reducing the likelihood of slipping.
Statement (C) is also true. The directional tread patterns enhance water dispersion, reducing the risk of hydroplaning and improving traction on wet surfaces.
Therefore, the correct answer is (D) Both (A) and (C) are true.
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Which sequence lists types of materials in order from least conductive to most conductive?
-superconductor conductor semiconductor insulator
-insulator conductor semiconductor superconductor
-conductor superconductor semiconductor insulator
-insulator semiconductor conductor superconductor
Answers
Answer:
D). Insulator —> semiconductor —> conductor—> superconductor
Explanation:
The sequence list of types of materials in order from least conducive to the most conductive is: the insulator, semiconductor, conductor, and superconductor. Conductors are materials where electric current can flow freely; whereas, in insulators, electric current cannot. Examples of conductors are metals and water. Examples of insulators are plastics, papers, and rubbers.
Answer:
ya its D
Explanation:
The power of a machine is 6000 W. This machine is scheduled for design improvements. Engineers have reduced the
time for the output by one half from 15 s to 7.5 s. What work would be required to cut the time in half.
Step #1
Step #2
Step #3
Answers
Explanation:
Work = power × time
W = (6000 W) (7.5 s)
W = 45,000 J
A block slides down a rough ramp with a 30-degree incline as shown.
A diagram of a block on a 30 degree incline.
Which diagram represents the forces acting on the block?
A free body diagram with three forces: a force vector northeast labeled F Subscript N Baseline, a force vector southeast labeled F Subscript f Baseline, and a force vector south labeled F Subscript g Baseline.
A free body diagram with three forces: a force vector northeast labeled F Subscript N Baseline, a force vector southeast labeled F Subscript f Baseline, and a force vector southwest labeled F Subscript g Baseline that is equal in magnitude but opposite in direction to the vector pointing northeast.
A free body diagram with three forces: a force vector north labeled F Subscript N Baseline, a force vector southeast labeled F Subscript f Baseline, and a force vector south labeled F Subscript g Baseline, which is equal in magnitude but opposite in direction the north vector.
A free body diagram with three forces: a force vector northeast labeled F Subscript N Baseline, a force vector northwest labeled F Subscript f Baseline, and a force vector south labeled F Subscript g Baseline.
Answers
Answer: The first one
Explanation: My best guess is in the pic attached. Hope this helps.
Answer:
b
e
Explanation:
discuss the h atom emission spectra and the rydberg plot.
Answers
The hydrogen atom emission spectra provide information about the specific wavelengths or colors of light emitted when electrons transition between energy levels.
The Rydberg plot, based on the Rydberg formula, is a graphical representation of these spectral lines and helps determine the relationship between the energy levels and the observed wavelengths or frequencies.
The hydrogen atom emission spectra and the Rydberg plot are both important concepts in atomic physics that describe the behavior of the hydrogen atom and the relationship between the energy levels of its electrons.
The hydrogen atom emission spectra refers to the pattern of light emitted when the electrons in a hydrogen atom transition between different energy levels. When an electron moves from a higher energy level to a lower energy level, it releases energy in the form of photons of specific wavelengths or colors. These emitted photons create a characteristic set of spectral lines in the electromagnetic spectrum.
The spectral lines observed in the hydrogen atom emission spectra are classified into different series: the Lyman, Balmer, Paschen, Brackett, and Pfund series. Each series represents a specific range of wavelengths or energy transitions. The Balmer series, for example, includes the visible spectral lines and is commonly observed in laboratory experiments.
The Rydberg plot, named after the Swedish physicist Johannes Rydberg, is a graphical representation of the wavelengths or frequencies of the spectral lines in the hydrogen atom emission spectra. The Rydberg formula provides a mathematical relationship between the wavelengths/frequencies of the spectral lines and the energy levels of the hydrogen atom:
1/λ = \(R_H * (1/n_1^2 - 1/n_2^2)\)
where λ is the wavelength of the emitted light, R_H is the Rydberg constant for hydrogen (approximately 1.097 × \(10^7\) m⁻¹), and n1 and n2 are positive integers representing the initial and final energy levels, respectively.
By plotting the reciprocals of the observed wavelengths or frequencies against the corresponding energy level transitions, the Rydberg plot can be obtained. The Rydberg plot allows scientists to determine the Rydberg constant and study the energy structure of the hydrogen atom.
In summary, the hydrogen atom emission spectra provide information about the specific wavelengths or colors of light emitted when electrons transition between energy levels. The Rydberg plot, based on the Rydberg formula, is a graphical representation of these spectral lines and helps determine the relationship between the energy levels and the observed wavelengths or frequencies.
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A roller coaster starts from rest at its highest point and then descends on its (frictionless) track. Its speed is 20 m/s when it reaches ground level. What was its speed when its height was half that of its starting point
Answers
Answer:
Approximately \(14\; {\rm m\cdot s^{-1}}\).
Explanation:
The gravitational potential energy \(\text{GPE}\) of this roller coaster is proportional to the height \(h\) of the roller coaster.
The kinetic energy \(\text{KE}\) of this roller coaster is proportional to the square of speed \(v\).
The question states that the track is frictionless. Thus, during the descent, the \(\text{GPE}\) of this roller coaster is turned into \(\text{KE}\) without any energy loss.
When the roller coaster was at \((1/2)\) of the the initial height, only\(1 - (1/2) = (1/2)\) of the original \(\text{GPE}\) was turned into \(\text{KE}\). The \(\text{KE}\!\) of this roller coaster at that height would be \(1 - (1/2) = (1/2)\!\) of the \(\text{KE}\!\!\) when the roller coaster is at the ground level.
The \(\text{KE}\) of the roller coaster is proportional to \(v^{2}\) (the square of speed \(v\).) Thus, since the \(\text{KE}\!\) at \((1/2)\) the initial height is \(1 - (1/2) = (1/2)\!\) the \(\text{KE}\!\!\) at the ground level, the \(v^{2}\) at \((1/2)\!\) the initial height would also be \(1 - (1/2) = (1/2)\!\) the \(v^{2}\!\) at the ground level.
Since \(v = 20\; {\rm m\cdot s^{-1}}\) at the ground level, \(v^{2} = (20\; {\rm m\cdot s^{-1}})^{2}\) at the ground level. The \(v^{2}\) at \((1/2)\) the initial height would then be:
\((1 - (1/2))\times (20\; {\rm m\cdot s^{-1}})^{2}\).
Thus, the speed \(v\) at \((1/2)\) the initial height would be:
\(\begin{aligned}& \sqrt{(1 - (1/2))\times (20\; {\rm m\cdot s^{-1}})^{2}} \\ =\; & \sqrt{\frac{1}{2} \times (20\; {\rm m\cdot s^{-1}})^{2}} \\ =\; & \sqrt{200}\; {\rm m\cdot s^{-1}} \\ \approx\; & 14\; {\rm m\cdot s^{-1}}\end{aligned}\).
A 2.90-kg block is released from rest and allowed to slide down a frictionless surface and into a spring. The far end of the spring is attached to a wall, as shown. The initial height of the block is 0.500 m above the lowest part of the slide and the spring constant is 443 N/m. A. What is the maximum compression of the spring?B. The spring sends the block back to the left. How high does the block rise?
Answers
Part (a)
The potential energy of the block due to its height can be given as,
\(U=\text{mgh}\)The potential energy due to presence of spring can be expressed as,
\(U=\frac{1}{2}kx^2\)Equating both the values,
\(\begin{gathered} \text{mgh}=\frac{1}{2}kx^2 \\ x^2=\frac{2mgh}{k} \\ x=\sqrt[]{\frac{2mgh}{k}} \end{gathered}\)Substitute the known values,
\(\begin{gathered} x=\sqrt[]{\frac{2(2.90kg)(9.8m/s^2)(0.500\text{ m)}}{(443\text{ N/m)}}(\frac{1\text{ N}}{1kgm/s^2})} \\ \approx0.253\text{ m} \end{gathered}\)Thus, the maximum compression of the spring is 0.253 m.
Part (b)
Since the slide is frictionless, therefore no energy loss happened during the sliding of block. Therefore, the block will rise up to the same initial height which is 0.500 m.
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A ball is kicked straight up from the ground with a speed of 10.0 m/s. How long will the
ball be in the air?
Answers
The total amount of time the ball would be in the air is 2.04 secs
To determine how long the ball will be in the air,
We will the equation for calculating total time of flight, T
For a projectile motion, the total time of flight of an object is given by
\(T = \frac{2usin\theta}{g}\)
Where T is the total time of flight
u is the velocity of projection
θ is the angle of projection
and g is the acceleration due to gravity
From the question,
u = 10.0 m/s
θ = 90° (This is because the ball is kicked straight up)
Put these values into the equation,
\(T = \frac{2usin\theta}{g}\)
\(T = \frac{2\times 10.0 \ sin90}{9.8}\)
(NOTE: g = 9.8 m/s²)
∴ \(T = \frac{2\times 10.0 \times 1}{9.8}\)
\(T = \frac{20}{9.8}\)
T = 2.04 secs
Hence, the total amount of time the ball would be in the air is 2.04 secs
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Calculate the average orbital radius of Pluto, using the fact that it takes Pluto 248 Earth years to make one orbit. The average Earth-Sun distance is 1.5x10^11m.
Answers
The average Earth-Sun distance is 1.5x\(10^{11}\)m.
The orbital period of Pluto, T = 248 Earth years = 248 x 365.25 days = 90560.2 days.
The orbital radius of Pluto, r, can be calculated using Kepler's Third Law
\(T^{2}\) = (4\(\pi ^{2}\)/GM) x\(r^{3}\)
Where G is the gravitational constant and M is the mass of the Sun.
The mass of the Sun is approximately 1.99 x \(10^{30}\) kg, and G is 6.6743 x \(10^{-11}\) N\((m/Kg)^{2}\)
Substituting these values and solving for r, we get
r =\([(GM)(T^{2} )(4\pi ^{2}) ]^{1/3}\)
r = [(( 6.6743 x \(10^{-11}\) N\((m/Kg)^{2}\))(1.99 x \(10^{30}\) kg)(90560.2 days x\((90560.2 days *86400 s/day)^{2} /4\pi ^{2} )^{1/3}\)]
r = 5.906 x \(10^{12}\) m
Hence, the average orbital radius of Pluto is approximately5.906 x \(10^{12}\) m.
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What is the approximate number of wavelengths of light that can travel in 1 direction within a retroreflecting bead that has a diameter of 5 × 10-5 m? (Note: The speed of light = 3 × 108 m/s, and its frequency is approximately 1015Hz.)
0.6
1.7 × 10^2
1.5 × 10^4
3.3 × 10^6
Answers
The approximate number of wavelengths of light that can travel in one direction within a retroreflecting bead that has a diameter of 5 ×\(10^-^5\) m is 167.
Number of wavelengths of light in a retroreflecting bead with 5 × 10^-5 m diameter?
This calculation is based on the formula n = L/λ, where n is the number of wavelengths, L is the length of the object, and λ is the wavelength of light. To calculate the wavelength of light, we use the formula c = λf, where c is the speed of light and f is the frequency of light.
In this problem, we are given the diameter of the retroreflecting bead, which is assumed to be spherical. Therefore, its length is equal to its diameter, which is 5 × \(10^-^5\)m. We are also given the speed of light, which is 3 × \(10^8\) m/s, and an approximation of the frequency of light, which is \(10^1^5\) Hz.
Using the formula c = λf, we can solve for the wavelength of light:
λ = c/f = (3 ×\(10^8\) m/s)/\((10^1^5\)Hz) = 3 ×\(10^-^7\)m
Finally, we can use the formula n = L/λ to calculate the approximate number of wavelengths of light that can travel in one direction within the retroreflecting bead:
n = L/λ = (5 ×\(10^-^5\) m)/(3 ×\(10^-^7\) m) = 166.67 ≈ 167
Therefore, the approximate number of wavelengths of light that can travel in one direction within a retroreflecting bead that has a diameter of 5 ×\(10^-^5\) m is 167.
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the dominant wavelength of energy emitted by the sun is question 9 options: a) shorter than that emitted by earth b) longer than that emitted by earth c) the same length as that emitted by earth
Answers
The dominant wavelength of energy emitted by the sun is shorter than that emitted by Earth.
All objects with temperatures above absolute zero emit electromagnetic radiation.
The spectrum of the radiation emitted by an object is determined by its temperature; the hotter the object, the higher the frequency of the emitted radiation. Sun's temperature is around 5,500 degrees Celsius, while Earth's temperature is just over 15 degrees Celsius.
Thus, the dominant wavelength of energy emitted by the sun is shorter than that emitted by Earth.
Summary: Therefore, the answer to the question "the dominant wavelength of energy emitted by the sun is" is that the dominant wavelength of energy emitted by the sun is shorter than that emitted by Earth.
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Please help me on these 2 questions!! I'm counting on you guys
Answers
Answer:
b and you mom is cute so it's nice I'm here for points
A rocket is being launched straight up. Air resistance is not negligible. Draw the vectors starting at the black dot. The location and orientation of the vectors will be graded. The exact length of your vectors will not be graded but the relative length of one to the other will be graded.
Answers
Answer:
the Force is the one created by the engines, W is the weight of the rocket and its fuel and fr is the friction force created by the air
Explanation:
Unfortunately you did not include a diagram with the point where to make the drawing, let's assume that the point is the initial launch point, just leaving the ramp.
In the attached we can see the forces on the rocket, the Force is the one created by the engines, W is the weight of the rocket and its fuel and fr is the friction force created by the air, which depends on several factors, the shape of the rocket, velocity, and air density with height
vf= 0 m/s + 2.00s how fast was he going when he entered the water?
Answers
13.0 m/s that's how fast he was going
Why is acceleration due to gravity low in the space?
Answers
Answer:
Explanation:
actually , the acceleration due to gravity depends on the distance from it's center of the earth.
when the distance from the earth increases , the acceleration due to gravity decreases as a result . The value of gravity in space is zero.
why frequency remains unchanged during reflection
Answers
Answer:
Although the wave slows down, its frequency remains the same, due to the fact that its wavelength is shorter. When waves travel from one medium to another the frequency never changes. As waves travel into the denser medium, they slow down and wavelength decreases.
Answer:
When waves travel from one medium to another the frequency never changes.
Explanation:
As waves travel into the denser medium, they slow down and wavelength decreases. Part of the wave travels faster for longer causing the wave to turn. The wave is slower but the wavelength is shorter meaning frequency remains the same.
If u have a old dogs and it starts whining and it's legs lockup ,and wont let u pick it up. What do i do Im s scared?
Answers
The dog MUST be SEEN by a vet.
Not on the phone, not from your description. Not a web search, and not asking for advice online.
A qualified veterinarian has to have his hands on the animal, examine the dog, and make some suggestions. It might cost some money.
There's something missing here. A qualified real vet will never just say "I don't know, good bye!".
Energy. (4 points)
2. When you eat pizza, Chemical Energy is transferred to
O Solar
Electrical
Mechanical
Chemical
Answers
When you eat pizza, chemical energy is transferred to mechanical energy.
What is energy?Energy can be defined as the ability to do work. Thus, energy must be possessed or transferred to a physical object (body) before work can be done.
The forms of energy.In Science, there are different forms of energy and these include the following;
Sound energyGravitational energyElectrical energyChemical energyElectromagnetic energyMechanical energyWhen a person eats pizza, the chemical energy contained in this snack is transferred to mechanical energy.
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How does the kinetic energy from the forward motion of a car traveling at 16 m/s
compare with the kinetic energy of the same car traveling at 8 m/s?
(A) It is 2 times greater.
(C) It is 8 times greater.
(B) It is 4 times greater.
(D)
It is 16 times greater.
Answers
The kinetic energy in the first case is 4 times more than the second case.
Hence, option D)It is 4 times greater is the correct answer.
What is Kinetic Energy?Kinetic energy is simply a form of energy a particle or object possesses due to its motion.
It is expressed as;
K = (1/2)mv²
Where m is mass of the object and v is its velocity.
Given that;
For the first case, velocity v = 16m/sFor the second case, velocity = 8m/sLet the mass of the car be mFor the first case, kinetic energy of the car will be;
K = (1/2)mv²
K = (1/2) × m × (16m/s)²
K = (1/2) × m × 256m²/s²
K = mass × 128m²/s²
For the second case, kinetic energy of the car will be;
K = (1/2)mv²
K = (1/2) × m × (8m/s)²
K = (1/2) × m × 64m²/s²
K = mass × 32m²/s²
Comparing the kinetic energy of the car with the same mass but different velocity, we can see that the kinetic energy in the first case is 4 times more than the second case.
Hence, option D)It is 4 times greater is the correct answer.
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How would the gravity forces change if the Earth and Sun were moved far apart? Increase, stay the same, or decrease.
Answers
But on an orbital sense, the gravitational force between two objects depends on the mass of both the larger and the smaller object. ... The pull between Earth and Sun grows weaker, and the planets would drift farther from the Sun, spending much more time at much greater distances from the Sun.
8. You-messages are most associated with which communication style? (1 point)
O aggressive
O passive
O assertive
Opassive-aggressive
Answers
Messages are most associated with assertive communication style.
What is assertive communication style?The ability to talk and engage in a way that respects and recognizes the rights and opinions of others while simultaneously standing up for your own needs, wants, and personal boundaries is referred to as assertive communication.
Expressing disapproval of a situation or idea through assertiveness is a powerful and non-confrontational tactic.
According to Pipas and Jaradat (2010), assertive communicators can speak up for their rights (or those of others) in a dignified and honest manner, reducing interpersonal disputes and upholding respect for others.
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the two 10-cm-long parallel wires in the figure are separated by 5.0 mm. for what value of the resistor
Answers
The value of the resistor depends on the value of the resistivity of the wires used. For example, if the resistivity of the wires is 2.00×10⁻⁸ ohm-meters, then the resistance of the parallel wire would be:R = 2.00×10⁻⁸ ohm-meters × 1270.88 = 0.0255 ohms. Therefore, the value of the resistor for the given parallel wires would be 0.0255 ohms.
The question involves a problem about parallel wires separated by a distance of 5.0 mm. To find the resistor for a given length of parallel wires, we need to know the value of the resistivity of the wires. We can use the formula to find the value of the resistor. Resistivity (ρ) is a property of materials that tells us how well a material can conduct electricity. It is measured in ohm-meters (Ω.m).The formula for the resistance (R) of a wire with resistivity (ρ), length (L), and cross-sectional area (A) is given by:R = ρ(L/A)where R is the resistance in ohms, ρ is the resistivity in ohm-meters, L is the length of the wire in meters, and A is the cross-sectional area in square meters.Now, we have to determine the resistance of a parallel wire by using the given values. The length of the wire (L) is 10 cm = 0.1 m. The distance between the wires (d) is 5.0 mm = 0.005 m. The cross-sectional area (A) of the wire can be calculated by using the diameter of the wire (d) as follows:A = π(d/2)² = π(0.001/2)² = 7.854×10⁻⁷ m². Now, we can substitute these values into the formula for the resistance of the parallel wire:R = ρ(L/A) = ρ(0.1/7.854×10⁻⁷) = ρ(1270.88)The value of the resistor depends on the value of the resistivity of the wires used. For example, if the resistivity of the wires is 2.00×10⁻⁸ ohm-meters, then the resistance of the parallel wire would be:R = 2.00×10⁻⁸ ohm-meters × 1270.88 = 0.0255 ohms. Therefore, the value of the resistor for the given parallel wires would be 0.0255 ohms.
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Under water, Zachary can hear waves that travel with frequencies up to 15,000 Hz. What is the velocity of sound in water if a wave with this frequency has a wavelength of 1.2 m?
Answers
Answer:
18 000 m/ s
Explanation:
speed = wavelength * frequency
speed = 1.2 * 15 000 = 18 000 m/s
Describe the history of the development of the current atomic model. Be sure to include at least three different historic models.
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A model used to explain the composition and structure of an atom is known as a "atomic model" in physics.
Thus, Over time, atomic models have undergone numerous modifications in order to better fit experimental evidence.
The Greek atomic theory was not founded on natural observations, measurements, tests, or experiments, despite its historical and philosophical significance.
Atomic model proposed by Dalton was well received. It was consistent with experimental findings and combined the previously understood concepts of the law of conservation of mass, the law of definite proportions, and the law of numerous proportions.
Thus, A model used to explain the composition and structure of an atom is known as a "atomic model" in physics.
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