Buying or selling the Earth will go against the rights of the inhabitants of the world (humans and other living beings).
What is the Roche limit of Earth?
Solar influence
Far from the Roche limit, the mass is practically spherical. Closer to the Roche limit, the body is deformed by tidal forces. Within the Roche limit, the mass's own gravity can no longer withstand the tidal forces, and the body disintegrates.If Earth had two moons, it would be catastrophic. An extra moon would lead to larger tides and wipe out major cities like New York and Singapore. The extra pull of the moons would also slow down the Earth's rotation, causing the day to get longer.The Moon will swing ever closer to Earth until it reaches a point 11,470 miles (18,470 kilometers) above our planet, a point termed the Roche limit. "Reaching the Roche limit means that the gravity holding it [the Moon] together is weaker than the tidal forces acting to pull it apart," Wilson said.The Roche limit for the Moon orbiting the Earth is 2.86 times radius of EarthThe nearest distance between the planet and its satellite at where the planets gravitational pull does not torn apart the planets satellite is known as Roche limit.The relation to determine Roche limit is:
[tex]Roche Limit=(2.423) (Rp3) {{\sqrt[3]{\frac{D_{P} }{D_{m} } } } }[/tex]
Here is radius of planet and are density of planet and moon respectively.
According to the problem,
Density of Earth, = 5.5 g/cm³
Density of Moon, = 3.34 g/cm³
Consider be the radius of the Earth.
Substitute the suitable values in the equation (1).
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A small rock with mass 0.18 kg is released from rest at point a, which is at the top edge of a large, hemispherical bowl with radius r = 0.50 m. assume that the size of the rock is small compared to r, so that the rock can be treated as a particle, and assume that the rock slides rather than rolls. the work done by friction on the rock when it moves from point a to point b at the bottom of the bowl has magnitude 0.22 j. between points a and b, how much work is done on the rock by the normal force?
There is no work done by the normal force because all of the work is being done by gravity.
W=0 J where J is Joules.
Normal force is always perpendicular to the motion of the body, hence work done by normal force is zero.
Work done = force×d = Fdcos(Θ) { cos(90) = 0 }
Work done = 0 J
As the box moves down the incline, the only force doing work on the box is the force of gravity. The weight of the box is mg and the inclined plane makes an angle theta with respect to the horizontal, so the force of gravity is mg × sin(Θ)
So the work done by gravity is
W=mg×sin(Θ)×d
where d is the distance the box travels down the incline. The normal force is perpendicular to gravity, so the work done by the normal force is
W=F×d×cos(90)=0
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Explain the relationship between Newton's Third law of action-reaction forces and
Homers rocket experiment.
Every action has an equal and opposite response, according to Newton's Third Law.
Explain about the Newton's 3rd law relate to a rocket?Newton's Third Law of Motion is essential for rocket launch. Through action and reaction, a rocket engine generates thrust. Hot exhaust gases from the engine exit via the back of the engine. In response, the opposing reaction produces a propelling force.
Forces always act in pairs that are equal but opposite, according to Newton's third law of motion. Another way to put it is that there is an equal but opposing reaction to every action. In other words, when you push against a wall, the wall pushes back at you with a force equal to your own.
There is an equal and opposite reaction to every action, according to Newton's third law. The implication of the statement is that there are always two forces acting on the two interacting objects. The force acting on the first object is equal in size to the force acting on the second.
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A series lc circuit contains a 100-mh inductor, a 36. 0-mf capacitor, and a 12-v battery. The angular frequency of the electromagnetic oscillations in the circuit is.
The angular frequency of the oscillation of the electromagnetic oscillations of the LC circuit is 16.66 rad/s.
The angular frequency of the electromagnetic oscillations in the given circuit is given by,
W = 1/√(LC)
Where,
W is the angular frequency,
L is the inductance of the inductor in the circuit,
C is the capacitance of the capacitor in the given circuit,
It is given that, LC circuit contains a 100-mh inductor, a 36.0-mf capacitor,
So, putting values,
W = 1/√(36 x 100x10⁻⁶)
W = 1/6x10⁻²
W = 16.66 rad/s.
So, the angular frequency is 16.66 rad/s.
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White dwarf supernovae are good standard candles for distance measurements because.
White-dwarf supernovae occur only among young and extremely bright stars.
Two stars in a binary system revolve around the same location. A carbon-oxygen white dwarf, one of the stars, takes materials from its neighbouring star. The white dwarf eventually becomes overburdened with matter. A supernova is produced when a star explodes due to an excess of stuff.
According to a recent study, the supernova explosion of a white dwarf star could have effects similar to those of a nuclear bomb on Earth. White dwarfs are the dull, fading cores of dead stars, about the size of Earth, that remain after stars of average size have used up their fuel and lost their outer layers.
An eruption from the surface of a white-dwarf star in a binary star system is known as a nova. When a white dwarf, which is the dense core of a former normal star, "steals" gas from a neighbouring companion star, a nova is the result. When the white dwarf's surface accumulates enough gas, an explosion results.
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Urgently needed help!!!
If a cheetah can run at a top speed of 30 m/a. How long would it take the cheetah go cover 600m
Answer: 20 m/a
Explanation: 600/30=20
Explain why the bowling ball slows down when it hits the pin.
Which of these is correct:
Because the ball loses momentum. The momentum is conserved because the total momentum before the interaction is equal to the total momentum after.
or
The ball loses momentum. This is because the ball and pin exert equal and opposite forces on each other when they are in contact but no external forces act on them
thank you
A 50 liter piton cylinder device contain oxygen at 50°C and 170 kpa now the oxygen i heated until the temperature reache 77°C. What i the amount of heat tranferred during thi proce?
The amount of heat transferred is proportional to the temperature difference between the objects and the heat capacity of the object.
Warmness is based totally on the authentic story of Neil McCauley, a calculating criminal and ex-Alcatraz inmate who was tracked down by way of Detective Chuck Adamson in 1964. In 1961, McCauley was transferred from Alcatraz to McNeil, as mentioned in the film.
Considering the fact that Michael Mann's warmness got here out, he's been citing the film as a concept for the paintings he did inside the Dark Knight. Connections have been drawn among the visuals, the interrogation scene, and even solid member William Fitchner, who's in each movie.
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what specific factors might explain why the total angular momentum of the two systems was not conserved during the collisions?
Kinetic friction from the primary axle bearing, reader pull bearing, aux. pully bearing. The reader makes a sound whilst it pushes against the platter causing strength to be in part launched.
The belongings of any rotating item given by means of second of inertia instances angular pace. it's far the property of a rotating frame given by way of the manufactured from the instant of inertia and the angular velocity of the rotating object. Angular momentum from time to time known as spin is decided through an item's mass, its pace, and how some distance the mass extends out from the factor of rotation.
Angular Momentum is defined because the assets of any rotating object are given by way of the made from the moment of inertia and angular velocity of the rotating item. it is a vector and has both importance and course. The not unusual examples of angular momentum are the rotation and revolution of Earth.
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A man wishes to pull a crate 15m across a rough floor by exerting a force of 100 n. The coefficient of kinetic friction is 0. 25. For the man to do the least work, the angle between the force and the horizontal should be:.
For the man to do the least work, the angle between the force and the horizontal should be 76.
Work is calculated as the force multiplied by the distance travelled in the direction of the force.
given that,
force, f = 100 N
Coefficient of friction, = 0.25
distance, d = 15 m
So, net force, F = force - Coefficient of friction
net force = 100 - 0.25 x m g
Work = (100 - 0.25 mg) x d cosθ
For minimum work, the angle should be maximum.
So, the value of angle θ is 76°.
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In EACH of the following pairs, circle the form of radiation with the
LOWER ENERGY (energy is directly related to frequency):
a. red light or blue light
b. microwaves or radio waves
c. infrared radiation or red light
d. gamma rays or UV radiation
e. yellow light or green light
f. x-rays or gamma rays
g. UV radiation or violet light
h. AM radio waves or FM radio waves
From of the following pairs, the form of radiation with the lower energy are
a.)microwaves or radio waves.
h.)AM radio waves or FM radio waves.
electromagnetic spectrum :
The electromagnetic spectrum is a collection of wavelengths, photon energies, and frequencies that extends frequencies.
wavelength increasing order of EM waves.gamma rays > X-rays > ultraviolet radiation > visible light > infrared radiation > radio waves.
wavelength ∝ 1 / frequency
energy is directly related to frequency is given as:E = hf
where
E = energy
f = frequency
h = Planck’s constant
From of the following pairs, the form of radiation with lower energy are
a.)microwaves or radio waves.
h.)AM radio waves or FM radio waves.
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two cannonballs, a and b, are fired from the ground with identical initial speeds, but with ua larger than ub . (a) which cannonball reaches a higher elevation? (b) which stays longer in the air? (c) which travels farther? expl
Cannon A reaches a higher elevation when two cannonballs, a and b, are fired from the ground with identical initial speeds, but with ua larger than ub.
Because elevation rises with increasing angle, Cannon A fires at a higher altitude. Finding the vertical velocity will yield the elevation. The velocity increases as the angle increases. Cannon A's elevation is higher than Cannon B's because the angle from which the projectile was fired from Cannon A was greater. Due to its higher elevation, Cannon A flies higher for a longer period of time. The formula for time is t = (2y)/g, meaning that the larger y is, the larger time will be. Cannon A is in the air for a longer period of time because elevation and vertical velocity affect time.
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A group of students have decided that the amount of electricity used by the school should be reduced. The students want to develop a plan to solve this problem. What should the group do first?.
Using the theories of electricity, we got that group should do first is to improve the design of the plan if a group have decided that the amount of electricity used by the school should be reduced.
Electricity refers to physical phenomena that should be connected with the presence and the motion of the matter that actually contain the electric charge property. It is related to the magnetism, also it should be the integral part of the electromagnetism.
Hence, when a group of students have decided that the amount of electricity used by the school should be reduced and want to develop a plan to solve this problem, the group should do first is that improve the design of the plan so that the problem should be solved.
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(Complete question) is:
A group of students have decided that the amount of electricity used by the school should be reduced and the students want to develop a plan to solve this problem. What should the group do first? Select one: a. determine what materials should be used to implement the plan b. conduct research on energy conservation to form the plan c. improve the design of the plan d. test the validity of the plan
Which interaction between magnets demonstrates the greatest change in kinetic energy?
Answer:
two attracting magnets are released while moving away from one another.
Explanation:
Answer:the correct answer is: two attracting magnets are released from hole moving towards one another
Explanation:
A clay liner and a system of pipes is used in a sanitary landfill to:
A. Prevent leakage
B. Prevent disease
C. Restore oxygen
D. Recycle waste
A clay liner and a system of pipes is used in a sanitary landfill to
a) Prevent leakage
What is sanitary landfill ?
Sanitary landfill refers to the efficient use of engineering techniques to confine waste to the smallest practical area in order to cover it with a layer of soil to reduce its volume and minimize pollution. It is a land-based method of disposal without harming the environment and public health. of air.
A landfill is a place where waste is isolated from the environment until it is safe. It is believed to be completely biologically, chemically and physically degraded. High-income countries may have higher levels of isolation achieved.
A safe landfill has critical elements: a bottom liner, a leachate collection system, a cover, and a natural hydrogeological environment. The natural environment can be chosen to minimize the potential for waste to enter the groundwater below the landfill.
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PLEASE NEED THIS ASAP GRADE DEPENDS ALOT OF POINTS FOR AN ANSWER WILL MARK BRAINLIEST PLEASE
Three point charges are arranged in a straight line. The point charges are q₁ = -10.0 μC, q2 = 20.0 μC, and q3 = -10.0 µC. Charge q, is 20.0 cm from charge q2, and charge q3 is 10.0 cm from charge 92. Determine the magnitude of the net electric force on charge q1
Answer:
-44.95N
Explanation:
electric force = kQ / r²
= 8.99×10^9 × -10.0×10^-6 / 20×10^-2 = -44.95N
hope it helps. :)
a nonsinusoidal electromagnetic wave like that described in section 32.2 has uniform electric and magnetic fields. the magnitude of the poynting vector for this wave is 11.0 w/m2w/m2 . find the magnitude of the electric field. express your answer with the appropriate units. ee
The magnitude of the electric field of the electromagnetic wave is E = 64.4 V/m
What is an electromagnetic wave?An electromagnetic wave is awave that does not require a medium to propagate
What is an electric field?An electric field is a region in which the effect of an electric force is felt.
How to find the magnitude of the electric field?Since a nonsinusoidal electromagnetic wave like that described in section 32.2 has uniform electric and magnetic fields. the magnitude of the poynting vector for this wave is 11.0 W/m².
What is the poynting vector?The magnitude of the poynting vector is given by
S = E²/μ₀c where
E = electric field, μ₀ = permeability of free space = 4π × 10⁻⁷ H/m and c = speed of electromagnetic waves = 3 × 10⁸ m/sSince we require the electric field, making E subject of the formula, we have
E = √(Sμ₀c )
Given that S = 11.0 W/m²,
Substituting the value sof the variables into the equation, we have
E = √(Sμ₀c )
E = √(11.0 W/m² × 4π × 10⁻⁷ H/m × 3 × 10⁸ m/s)
E = √(44π × 3 × 10WH/s)
E = √(1320π WH/s)
E = √(4146.9 WH/s)
E = 64.4 V/m
So, the magnitude of the electric field is E = 64.4 V/m
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Why are two permanent magnets attracted to each other?.
The reason why two permanent magnets attract is that they have opposite pole.
What is a magnet?We know that a magnet has to do with an object that has its magnetic domains properly aligned in such a way that it can be able to attract other objects. We have to see here that a permanent magnet could have a north pole and a south pole.
Given that magnets that have different poles are going to attract because of the alignment of the magnetic domains in the both magnets, we can say that it is possible for two permanent magnets to attract.
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At a certain depth in the ocean, the absolute pressure is p. If you go to twice that depth (treating the water as incompressible).
At a certain depth in the ocean, the absolute pressure is p. If you go to twice that depth the absolute pressure will be less than 2p.
Theory:-Talking about pressure when describing gases, liquids, and fluids; stress is used to describe solids. When a fluid is at rest, all directions experience the same pressure at a specific point.Absolute pressure, which is measured in relation to absolute vacuum, is the actual pressure present at a specific location.Gauge pressure is equal to atmospheric pressure minus absolute pressure.Principle :- Absolute pressure is the term used to describe the actual pressure at a specific location. It is measured in relation to absolute vacuum (i.e. e. absolute zero pressure). However, the majority of pressure-measuring instruments are calibrated to read zero in the atmosphere, and as a result, they display the discrepancy between the absolute pressure and the local atmospheric pressure. The gage pressure is the name given to this variation. Vacuum gages, which show the difference between the atmospheric pressure and the absolute pressure, are used to measure vacuum pressures, which are pressures below atmospheric pressure.To understand more about atmospheric pressure-
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how much work www does the motor do on the platform during this process? enter your answer in joules to four significant figures.
The motor in the platform works for W=1885J during this process.
What is joules?The amount of energy expended when a force of one newton is applied across a displacement of one meter is known as a joule. A joule is equal to one watt of electricity emitted or lost over the course of one second. The British thermal unit (Btu) is sometimes used to express energy. the work- or energy-measurement unit derived from the SI. The energy required to accelerate a body with a mass of one kilogram over a distance of one meter using one newton of force is equal to one joule. Additionally, one joule is equal to one watt-second.
What is joules formula?The energy required to exert one newton of force through one meter is measured in joules. For instance, the energy required to lift a one-kilogram object one meter is given by E = Fd = (ma)d = mgd = (1 kg)(9.8m/s2)(1 m) = 9.8 kg m/s2 = 9.8 joules.
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What will the ph be in a titration of acetic acid and sodium hydroxide that is half way to equivalence point ?.
The pH is equal to the pKa in a titration of acetic acid and sodium hydroxide that is halfway to equivalence point.
Because of the incomplete dissociation of the acid, the reaction is in equilibrium, with an acid dissociation constant, Ka, which is specific to that acid. point are the same. Therefore, at the halfway equivalence point, the pH is equal to the pKa.
Titration is the slow addition of one solution of a known concentration to a known volume of another solution of unknown concentration until the reaction reaches neutralization, which is often indicated by a color change.
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A cyclist is traveling uphill, then downhill. At first, he travels uphill 1.0 km with a speed of 5 m/s. Then, he travels down that same hill at a speed of 15 m/s. What was his average speed?
I do the work on paper with steps and attached it to the answer!
a 1.5 m long, 0.75 kg dowel is pivoted about the end so that it is a pendulum of sorts - it can freely swing in a vertical plane. at the other end of the dowel is a brass weight having mass 1.5 kg. (the center of the brass weight is 1.5 m from the pivot point.) when the rod is positioned in its swing such that its angle with the vertical is 22.5 degrees, what is the net torque on the rod about the pivot?
Due to the brass weight's existence, the rod's torque about the pivot is 8.44 N.m.
What is torque?A force that may rotate an object about an axis is known as a torque. In linear kinematics, force is what drives the acceleration of an object. The same is true for angular acceleration, which is caused by torque. Thus, torque can be seen as the rotating counterpart of force. The term "axis of rotation" refers to the straight line around which the item rotates.
Given parameters:
Mass of the brass weight, m= 1.5 kg.
Length of the rod, l = 1.5 m.
Angle with the vertical; θ =22.5⁰.
We have to find, the brass weight's presence causing torque on the rod about the pivot; ζ = ?
Force applied by the brass weight; F = mass × acceleration due to gravity = 1.5 × 9.8 N = 14.7 N.
So, the brass weight's presence causing torque on the rod about the pivot; ζ = Fl sinθ
= 14.7 × 1.5 × sin22.5° N.m
= 8.44 N.m.
Hence, the applied torque on the rod about the pivot is is 8.44 N.m.
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two billiard balls of equal mass undergo a perfectly elastic head-on collision. if one ball's initial speed was 1.90 m/s , and the other's was 3.20 m/s in the opposite direction, what will be their velocities after the collision?
Answer:
One can use conservation of momentum and energy and obtain the result that the velocity of separation in such a collision will be equal to the velocity of approach
Thus, after collision their speeds will be 3.20 and 1.90 m/s
They will exchange velocities in the collision
If they were approaching each other their relative speeds are
5.10 m/s w.r.t. each other
If they were going in the same direction before the collision their relative speeds before and after the collision are 1.3 m/s
The problem here implies that their relative speed before the collision is 5.10 m/s (traveling in opposite directions)
let be the subspace of spanned by the vectors and . find the projection matrix that projects vectors in onto . .
If A is a matrix, its projection onto its column space is always represented by the matrix P=A(AA)1A. This simplifies to AA in the scenario where A is orthogonal.
What is deemed to be orthogonal?Orthogonal objects are connected by their perpendicularity to one another in Euclidean geometry. Lines of line segments that cross at a perpendicular angle are said to be connected orthogonally. Similar to this, two vectors are said to be orthogonal if they intersect at a 90-degree angle.
How does orthogonal behavior work?When two systems are orthogonal, they do not impact one another through interaction. At some point or junction, they come together, but other from that, neither system affects the other. Because of this independence, moving, testing, or changing things in one system does not affect components in the other system.
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what is the de broglie wavelength (in nanometers) of an electron with a velocity of 2.5 x 106 m/s? enter the numerical answer only; do not enter a unit.
The de Broglie wavelength (in nanometers) of an electron with a velocity of 2.5 x [tex]10^{6}[/tex] m / s is 0.29 nm
λ = h / m v
λ = Wavelength
h = Planck's constant
m = Mass
v = Velocity
v = 2.5 * [tex]10^{6}[/tex] m / s
m = 9.1 * [tex]10^{-31}[/tex] kg
h = 6.626 * [tex]10^{-34}[/tex] J s
λ = 6.626 * [tex]10^{-34}[/tex] / ( 9.1 * [tex]10^{-31}[/tex] * 2.5 * [tex]10^{6}[/tex] )
λ = 0.29 * [tex]10^{-9}[/tex] m
λ = 0.29 nm
De Broglie's equations describes that matter can act as waves just as light and radiation do. It also states that beam of electrons can also be diffracted like a beam of light
Therefore, the wavelength of the electron is 0.29 nm
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The acceleration of gravity on planet Y is 14.4 m/s/s. An object has a mass of 42.2 kg. What would be its weight on planet Y?
Weight
Help Links
N
Answer:
607.68N [weight on planet Y]
Explanation:
Using the formula
[tex]w = mg[/tex]
Where w is the weight, m is the mass and g is the gravity.
Gravity (g) on planet Y is 14.4 m/s/s
Object has a mass (m) of 42.2 kg
Weight (w) on planet Y is w
-
NOTE: '•' MEANS MULTIPLICATION
NOTE: WEIGHT IS MEASURED IN NEWTONS (N)
-
Inputing the values into the formula, and solving it...
w = mgw = 42.2 • 14.4w = 607.68== 607.68N [weight on planet Y]
A security incident is currently occurring on the company network. You discover that the attackinvolves a computer system that is attached to the network. You're unsure what kind of damage isbeing done to the network systems or data.Which of the following actions should you take FIRST?
The action which I should take first is a)Stop the attack and contain the damage by disconnecting the system from the network. So correct option is a.
Many people actually rely on the Internet for many of their professional, social and the personal activities. But there are many people who attempt to damage our Internet-connected computers, violate our privacy and render inoperable the Internet services.
Given the frequency and the variety of existing attacks as well as the threat of new and more dangerous future attacks, network security has become a central topic in the field of computer networking.
Hence, correct option is a.
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(Complete question) is:
A security incident is currently occurring on the company network. You discover that the attack involves the computer system that is attached to the network. You're unsure what kind of the damage is being done to the network systems or data. Which of the following actions should you take FIRST?
a)Stop the attack and contain the damage by disconnecting the system from the network.
b)Continuously remain the network system in running state.
c)Try to introduce malware in attacker network system.
d)All of the above.
A brick is resting on a rough inclined surface. The friction force acting on the brick, along the incline, is.
When a brick is at rest on the inclined plane,it means all forces are balanced on the brick.
so, Gravitational force (mg) will act in component along the iclined are mgsinQ in downwards and mgcosQ in perpendicular,
Therefore frictional force will work in opposit of mgsinQ
it means mg(sinQ) = frictioal force
on the other side we can find force balance perpendicular to the inclined plane as ;
Normal(N) = mg(cosQ)
To move the brick less frictional force is required or we need to increase the force.
so from above equation we can say that,Friction force is grater then the Gravitational force.
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calculate the energy difference for a transition in the paschen series for a transition from the higher energy shell n
The energy difference between the given shell while transactions between paschen series statement (energy differnce)ΔE = 1.30eV
What is Paschen series?The Paschen series is a collection of emission lines from atomic hydrogen gas caused by the descent of electrons from an electron shell with n > 3 to an electron shell with n = 3.
An electron moves from a higher state to the n = 3 shell in the Paschen series of the hydrogen atom.
Assume that the electron's starting state is n = 8.
Now to calculate the energy difference we use the following formula:
ΔE = (1/[tex]n^{2}[/tex]low − 1/[tex]n^{2}[/tex]high)13.6eV
According to the given data:
n high =8
n low=3
so putting value on the above formula
ΔE = (1/[tex]3^{2}[/tex]low − 1/[tex]8^{2}[/tex]high)13.6eV
ΔE =(0.095)13.6eV
ΔE = 1.30eV
So,The energy difference between the given shell while transactions between paschen series statement (energy difference)ΔE = 1.30eV
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A box has 3 forces acting on it. A 1.05N force north, another 9.54N force to the north, and a 33.96N force to the south. What is the net force on the box?
The net force acting on the box is [tex]23.37N[/tex]
What is Force?
Force is defined as the product of mass and acceleration. It's SI unit is newton F=ma [tex]MLT^{-2}[/tex] is a dimensional formula of force.The push or pull on an object with mass ,change its velocity.Net Force = Difference between opposite direction forces.
Force acting on the box in north direction=[tex]1.05N+9.54N[/tex]
=[tex]10.59N[/tex]
Force acting on the box in south direction=[tex]33.96N[/tex]
Therefore,Net force=[tex]33.96N-10.59N[/tex]
=[tex]23.37 N[/tex].
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