A weightlifter lifts up a bar and weights of mass of 200 kg so that the bar is a height of
2.0 m above the ground. The radius of the largest disc on the bar is 20 cm. What is the gain
in PE when the weights are lifted?

Answers

Answer 1

Answer:

3924 Joules

Explanation:

Potential Energy is calculated with the formula:

PE = mgh

From the problem m=200kg and h=2m so the gain in PE when the weights are lifted is 200*(9.81)*2 = 3924 J


Related Questions

if 8.0 mg of a radioactive substance naturally decays to 0.50 mg over 184 days, what is the half-life of the radioisotope?

Answers

46 days is the half-life of the radioisotope.

What is half life of a radioactive substance?

The half-life, in radioactivity, is the amount of time needed for half of the atomic nuclei in a radioactive sample to spontaneously transform into other nuclear species while emitting particles and energy, or, alternatively, the amount of time needed for the radioactive sample to disintegrate on average once every second.

The half life of a radioactive substance can be predicted by:

N(t) = N₀(1/2)^[t/t(h)]

N(t)  is the amount remaining (mg)

N₀ is the initial amount (mg)

t is the time elapsed, in days

t(h) is the half life in days.

N(t) = N₀(1/2)^[t/t(h)]

or, 0.50mg = (8.0mg)(1/2)^[184 days/t(h)]

Using logs, we can solve this for t(h):

t(h) = 46 days

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What three conservative double latter​

Answers

One possible response is WOOLLEN, which is pronounced "double U, double O, double L." The only terms with consecutive triple doubles that are commonly used are BOOKKEEPER (or BOOKKEEPING), which offers a more gratifying solution.

which three double-letter states are there?

If you're looking for a single word with three consecutive letters, "ghi" is the one you desire!

What word has three double letters in it?

An ancient joke asks, "Can you think of a term with three consecutive double letters?" One possible response is WOOLLEN, which is pronounced "double U, double O, double L." The only terms with consecutive triple doubles that are commonly used are BOOKKEEPER (or BOOKKEEPING), which offers a more gratifying solution.

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In the ingle particle he'll model the ground tate of a nucleu with an odd proton and neutron i determined from

Answers

The spin of the odd particle, which can be inferred by counting energy levels up to the Fermi level, determines the ground-state spin of the nucleus.

What is proton and neutron?

A positive-charged subatomic particle is known as a proton. Protons are held together in the atom's nucleus by the strong nuclear force. The neutron is a type of subatomic particle without charge.

subatomic particles with a positive charge that live in the nucleus. Neutrons: Subatomic particles with a neutral charge that are found in the nucleus. Electrons: Subatomic particles with a negative charge that are present in the electron shells that enclose the nucleus.

What is the relationship of protons and neutrons?

The positive charge proton have a propensity to reject one another, but the neutrons keep the nucleus together. The quantity of protons determines the atomic number, and the sum of the protons and neutrons determines the atomic mass. The atomic mass of hydrogen is 1, as there is just one proton and no neutrons in the material.

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Bicycle
Bicycle A
Bicycle B
Bicycle C
Bicycle D
Mass (kg)
10 kg
14 kg
18 kg
20 kg
Which vehicle has the greatest acceleration? Why?
Force (N)
45 N
45 N
45 N
45 N
(When it says the labels and info, it’s a table)

Answers

Answer:

10

Explanation:

as f=ma

if you make a the subject it becomes f/m=a so when the denominate increases the answer increases

Describe a situation where you have applied a lot of force (and maybe even felt tired afterward) but did no work in the sense we study it in Science class.

Answers

An example of no work after the effort is work done by the collie to travel a distance in a straight line by lifting a mass.

What is Work?

In physics, the word "work" involves the measurement of energy transfer that takes place when an item is moved over a range by an externally applied, at least a portion of which is applied within the direction of the displacement.

The length of the path is multiplied by the element of a force acting all along the path to calculate work if the force is constant. The work W is theoretically equivalent towards the force f times the length d, or W = fd, to portray this concept.

The amount of work done by the coolie to travel a certain distance in a straight line by lifting a certain amount of mass. Here the work done is zero because when the coolie lifted the mass the force exerted in the upward direction makes an angle of 90° and as per the formula of work done it will be equal to zero.

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a sodium photoelectric surface with work function 2.3 ev is illuminated by electromagnetic radiation and emits electrons. the electrons travel toward a negatively charged cathode and complete the circuit shown below. the potential difference supplied by the power supply is increased, and when it reaches 4.5 v, no electrons reach the cathode. (a) for electrons emitted from the sodium surface, calculate the maximum kinetic energy, end the maximum speed. (b) calculate the wavelength of the radiation that is incident on the sodium surface. (c) calculate the minimum frequency of light that will cause photoemission from this sodium surface.

Answers

(a) The highest possible rate of kinetic energy is -2.2 eV and the highest possible rate of speed is 2.3 × 10⁶ m/s.

(b) The length of the radiation's wave is 86 nm.

(c) The lowest frequency of visible light is 3.5 x 10¹⁴ Hz.

SOLUTION

To solve this problem, we can use the following equations:

- The maximum kinetic energy of the electrons emitted from the sodium surface is given by:

KEmax = Work function - Potential difference

- The maximum speed of the electrons is given by:

vmax = sqrt (2 × KEmax ÷ m)

where m is the mass of the electron.

- The incident radiation wavelength can be calculated using the Planck-Einstein equation:

E = h × f

where E is the energy of the incident radiation, h is the Planck constant, and f is the frequency of the radiation.

- The minimum frequency required for photoemission can be calculated using the work function of the sodium surface:

fmin = Work function ÷ h

- Using these equations, we can calculate the following:

(a) The maximum kinetic energy of the electrons is given by:

KEmax = 2.3 eV - 4.5 V = -2.2 eV

Hence,  the maximum kinetic energy is -2.2 eV.

- The maximum speed of the electrons is given by:

vmax = sqrt(2 × (-2.2 eV) ÷ (9.1 × 10⁻³¹ kg)) = 2.3 × 10⁶ m/s

Hence the maximum speed is 2.3 × 10⁶ m/s.

(b) The incident radiation wavelength can be calculated using the Planck-Einstein equation:

E = h × f

f = E ÷ h

f = 2.3 eV / (6.6 × 10⁻³⁴ J × s) = 3.5 × 10¹⁴ Hz

lambda = c ÷ f

lambda = (3.0 x 10⁸ m/s) ÷ (3.5 x 10¹⁴ Hz) = 8.6 x 10⁻⁷ m = 86 nm.

Hence, the wavelength of the radiation is 86 nm.

(c) The minimum frequency required for photoemission can be calculated using the work function of the sodium surface:

fmin = 2.3 eV ÷ (6.6 × 10⁻³⁴ J × s) = 3.5 × 10¹⁴ Hz

Hence, the minimum frequency of light is 3.5 × 10¹⁴ Hz.

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the amount of air drag on an 0.8n flying squirrel dropping vertically at terminal velocity is

Answers

The velocity of a vehicle is typically expressed relative to ground.

What is velocity?

Velocity is the speed of something that is given direction.

velocity is the measurement  to a  body's "pace of change of  the displacement in relation to time" whenever the main  body is traveling through along a straight route.

It is common knowledge of  that the word "linear" refers to be something that is totally straight; therefore,  when the body moves in a straight path, it is said to be linear velocity .

Alternatively, velocity is the  distance traveled by a body traveling in a specified to the direction during of a predetermined period of time. Thus, the fundamental idea of linear velocity is the  provided by the union of these two quantities.

Because it always has the direction of velocity is a vector.

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what is the molecular mass of an ideal gas of rms speed 542 m/s and average translational kinetic energy 6.93e-21 j

Answers

The Molecular Mass of ideal gas as per kinetic theory is 12.541 g.

The square root of the average square velocity is known as the root mean square or RMS velocity. Its units of velocity reflect this. Since all of the particles in a typical gas sample are moving in all directions, the net velocity for that sample is zero, which is why we use the rms velocity instead of the average. The square root of the average square are of the velocity is the root mean square velocity. Since the particles in a typical gas sample are moving in all directions, the net velocity is zero, which is why we use the rms velocity rather than the average velocity.

V=√[3RT/M]

squaring both sides of equation

V²=3RT/M

M=3RT/V²

M= 3 x 8.3 x 273/542

=12.541 g

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A ball weighing 10kg traveling a 1.4m/s hits and rebounds back off a wall and now travels 1.4m/s in the opposite direction. What is the work done on it?

Answers

Answer:

the work done on it is if it bounces of the wall then it can bounce back to you

Explanation:

You are waiting in line to use the diving board at your local pool. While watching people dive
into the pool from the board, you realize that using a diving board to spring into the air before a
dive is a good example of Newton’s third law of motion. Explain how a diving board illustrates
Newton’s third law of motion.

Answers

Answer:

because the diving board is helping the diver jump and helping increase the force of the diver's jump, they work together to help the jumper have a jump.

how does the size of the habitable zone around a star of spectral class g compare to the size of the habitable zone around a spectral class m star?

Answers

The size of the habitable zone around a star of spectral class g is larger to the size of the habitable zone around a spectral class m star.

What is a habitable zone?The range of orbits around a star within which a planetary surface may sustain liquid water given sufficient atmospheric pressure is known as the habitable zone, sometimes known as the circumstellar habitable zone (CHZ) or simply the habitable zone.The CHZ's boundaries are determined by Earth's location within the Solar System and the quantity of solar radiation it receives.Given the significance of liquid water to Earth's biosphere, the nature of the CHZ and the things contained inside it may be crucial in defining the range and distribution of planets capable of supporting Earth-like extra terrestrial life and intelligence.Due to the possibility that there are more planetary-mass moons in the CHZ than planets, the region is also of great interest to the newly growing topic of the habitability of natural satellites.

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a neon yellow 75g ball is launched at an angle of 50 with the level ground. it has an initial velocity of 15 m/s. assume that there is no air resistance and that the ball lands at the same elevation that it was launched . what is the maximum height that the ball reaches ? what is the reange of the ball ?

Answers

The maximum height that the ball reaches is 8.79 m and  the range of the ball is  12.29 m

To find the maximum height that the ball reaches, you will need to use the equation for the vertical displacement (y) of the ball:

y = Vy * t - (1/2) * g * t^2

Where Vy is the vertical component of the initial velocity, t is the time elapsed, and g is the acceleration due to gravity.

To find the time at which the ball reaches its maximum height, set the vertical displacement (y) to zero and solve for t:

0 = Vy * t - (1/2) * g * t^2

This equation can be rearranged to:

t = √(2Vy/g)

Then, substitute the given values for the initial velocity (Vy) and the acceleration due to gravity (g), and solve for t:

t = √(2 * 15 m/s * sin(50) / 9.8 m/s^2)

t = 1.16 s

y = Vy * t - (1/2) * g * t^2

y = 15 m/s * sin(50) * 1.16 s - (1/2) * 9.8 m/s^2 * (1.16 s)^2

y = 8.79 m

To find the range of the ball, you will need to use the equation for the horizontal displacement (x) of the ball:

x = Vx * t

Where Vx is the horizontal component of the initial velocity and t is the time elapsed.

To find the time elapsed (t), use the equation for the time at which the ball reaches its maximum height:

t = √(2Vy/g)

Substitute the given values for the initial velocity (Vy) and the acceleration due to gravity (g), and solve for t:

t = √(2 * 15 m/s * sin(50) / 9.8 m/s^2)

t = 1.16 s

To find the horizontal component of the initial velocity (Vx), use the equation:

Vx = V0 * cos(θ)

Where V0 is the initial velocity of the ball and theta is the angle of launch. Substitute the given values for the initial velocity (V0) and the angle of launch (theta), and solve for Vx:

Vx = 15 m/s * cos(50)

Vx = 10.6 m/s

To find the range of the ball, substitute the values for the horizontal component of the initial velocity (Vx) and the time elapsed (t) into the equation for the horizontal displacement (x):

x = Vx * t

x = 10.6 m/s * 1.16 s

x = 12.29 m

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a student pushes a 51.5 kilogram bookshelf across a smooth floor with a net force of 67 n. what is the approximate acceleration of the bookshelf?

Answers

Acceleration of the bookshelf is 1.30 m/[tex]s^{2}[/tex] when mass is 51.5 kg and force is 67 N.

To find the acceleration, we use newton's second law of motion. According to newton's second law of motion,

" The acceleration of an object is directly proportional to the net force acting on the object while being inversely proportional to its mass." Newton's second law of motion gives the measurement of force.

Acceleration is the result of force on an object.

The formula for finding acceleration from this law is.

Acceleration = Force/ Mass

a = F/m

So, a = 67/51.5 m/[tex]s^{2}[/tex]

= 1.30 m/[tex]s^{2}[/tex]

Acceleration in this case is 1.30 m/[tex]s^{2}[/tex]

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a crate of grapes lifted 10 meters gains 200 j of potential energy. if the same crate is instead lifted 20 meters, its gain in potential energy is

Answers

A same crate gains twice as much potential energy when it is raised 20 meters alternatively.

What is potential energy, exactly?

Potential energy is a form of energy that is dependent on the relationship between different system components. When a springy is stretched or stretched, its potential energy increases. If a steel ball is pushed above the ground as opposed to descending to the ground, it has more energy stored.

What kind of potential energy is that?

An object has the capacity to store energy because of its position. As an example, a destruction machine's large ball is conserving energy by being held in a high position. This positional force that has been saved is known as electric potential.

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Which surfaces tend to have the largest and smallest coefficients of friction? Explain why.

Answers

Ice on steel has low coefficient of friction whereas rubber on pavement has high coefficient of friction. Object such as silicone rubber can have a coefficient of friction much greater than one.

Which surfaces have the largest and smallest coefficients of friction?

Polytetrafluoroethylene has the lowest friction coefficient of any solid-state material but the coefficient of friction depends on the materials used.

Ice on steel has a low coefficient of friction as the two materials slide past each other very easily whereas rubber on pavement has a high coefficient of friction that is the materials do not slide past each other easily. We can say that rougher surfaces have a higher coefficient of friction.

Coefficient of friction more than one means that the frictional force is stronger than the normal force. An object such as silicone rubber, for example, can have a coefficient of friction much greater than one.

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if a motorcycle with a mass of 250 kg has a kinetic energy of 200,000 j, what is the motorcycle's speed in m/s?

Answers

The motorbike travels at a speed of 40 m/s

What is speed?

the speed at which an object's location changes in any direction. The distance traveled divided by the time it took to travel that distance indicates how fast something is moving.

Describe kinetic energy.

Kinetic energy, which may be seen in the movement of an item or subatomic particle, is the energy of motion. Kinetic energy is present in every particle and moving object.

KE = ½ m[tex]V^{2}[/tex]

We have kinetic energy of 200,000 j, mass of 250 kg , so to fine [tex]v^{2}[/tex]

using KE = ½ m[tex]V^{2}[/tex]

kinetic energy will be multiply by 2 and divided by mass

[tex]v^{2}[/tex]= KE / 1/2 * m

[tex]v^{2}[/tex] = 200000 * 2 / 250

[tex]v^{2}[/tex] = 1600

v = [tex]\sqrt{1600}[/tex]

v = 40 m/s

The motorbike travels at a speed of 40 m/s

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Find the value of the decay constant of a radioactive substance having a half-life of
0.02 seconds.

Answers

34.65 is the value of the decay constant of a radioactive substance having a half-life of 0.02sec.

Half-Life: It is the amount of time it takes for half of a Radioactive particular sample to react particular quantity requires to reduce its initial value to half. That means the time taken by the radioactive substance or isotopes to decay half.

Half-Life Formula :t₁/₂ = 0.693/λ

Where as t1/2 is Half-Life of a radioactive substance

λ= decay constant  

We have t1/2 = 0.02sec substitute in the formula

0.02=0.693/λ ⇒λ= [tex]\frac{0.693}{0.02}[/tex]

λ= 34.65

The decay constant of a radioactive substance having a half life-life of 0.02 is 34.65.

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Should the graphs of Weight vs. Forces of Friction of the shoes be linear? Explain.
Weight being X and Forces of Friction being Y

Answers

Graph of weight vs. forces of friction of the shoes would be linear. Greater is the weight (X) of shoes, greater is friction (Y) between the object and the surface on which the object is kept.

What is the graph pf weight vs force of friction?

Given let weight being X and forces of friction being Y.

As we know that the gravitational force is equal to mass multiplied by acceleration due to gravity. When mass increases, weight of the shoes (X) increases, therefore normal force increases and so friction  (Y) also increases.

Friction is directly dependent on the weight acting between two surfaces. When the mass is more, weight will be more and hence friction will also be more.

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what is expected to happen to the total peripheral resistance (tpr) when the hand is placed in the ice cold water?

Answers

Blood pressure decreases is expected to happen to the total peripheral resistance (tpr) when the hand is placed in the ice cold water.

Why is total peripheral resistance important?

Hypertension is characterized by an increase in peripheral resistance overall brought on by both functional and structural changes in the arterioles, and endothelial malfunction is a significant factor in the rise in arteriolar tone. TPR is influenced by a number of variables, including blood viscosity and volume as well as hormone and neurotransmitter levels in the blood.

What occurs when total peripheral resistance is raised?

Hypertension is characterized by an increase is total peripheral resistance brought on by both changes in structure and function in the arterioles, and angiogenesis is a significant factor in the rise in arteriolar tone.

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which two measurements are needed in order to calculate the speed of an object in motion?

Answers

The two measurements, which are needed in order to calculate the speed of an object in motion, be: amount of distance travelled at a particular time interval and the time interval.

what is speed?

The pace at which an object's position changes in any direction is what is meant by speed.

Speed is measured as the ratio of the distance traveled to the time it took to cover that distance. Speed is a scalar quantity since it just has a direction and no magnitude. Be meter/second is the SI unit of speed.

The equation, s = d/t, offers the speed formula.

Where,

s is the speed in m.s⁻¹

d is a representation of the distance in m.

The duration in s is t.

your question is incomplete, but most probably your full question was

Which two measurements are needed in order to calculate the speed of an object in motion?

Distance and time

Time and mass

Force and distance

Volume and time

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Suppose you are camping on a mountain and the air temperature is very cold. How would you keep warm? Would you build a fire or set up a tent?
with explenation..

Answers

Answer:

build a tent

Explanation:

it provides warmth and protection

find the ratio of turns on the primary coil to turns on the secondary coil in a transformer that will stop the 110v household voltage down to 4.1 v .

Answers

Ratio of turns on the primary coil is 26

Briefing

So to solve for this problem this is computed by the following steps

Vp/Vs  (=Np/Ns)

Briefing

Where;

Vp = Voltage primary

Vs = Voltage Secondary

Np =Turn ratio primary

Ns = Turn  ratio Secondary

So plugging in our Valves

110/4.1 =Np/Ns

Np/Ns= 26.82

So the answer is 26  Coils

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A car, ma 1225 kg, traveling at 105 km/h, low to a top in 53 m. What i the ize of the force that acted on the car

Answers

Answer:9700 N

Explanation: i js know

A 70.0 kg astronaut is training for accelerations that he will experience upon reentry. He is placed in a centrifuge (r = 10.0 m) and spun at a constant angular velocity of 16.3 rpm. Answer the following:
What is the angular velocity of the centrifuge in rad/s ?
What is the linear velocity of the astronaut at the outer edge of the centrifuge?
What is the centripetal acceleration of the astronaut at the end of the centrifuge?
How many g’s does the astronaut experience?
What is the centripetal force and net torque experienced by the astronaut? Give magnitudes and directions.

Answers

The astronaut faces 1.71 rad/s angular velocity, 17.1 m/s linear velocity, 29.2 centripetal acceleration, 3 g's are experienced, and 2044 N of centripetal force. The torque experienced is zero

What is rotational motion?

An object is said to be in rotational motion when it is travelling in a circular route around a fixed axis. Centrifugal force is a radially outward force that the item experiences as a result of this motion.

The image given below explains the conversion. The torque is zero since there is no tangential force.

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the electron-group arrangement around a central atom is defined by the number of –electron groups. the molecular shape is defined by the relative positions of the around the central atom. two species may have the same electron-group arrangement but have different molecular shapes. t or f

Answers

The total number of Valence electron groups determines the configuration of electron groups around a core atom. The relative placements of the atoms around the core atom determine the shape of the molecular structure.

There are three bonding electron groups and one nonbonding electron group in a molecule with four total electron groups surrounding the center atom. Its molecules have a trigonal pyramidal configuration.Molecules are made up of one or more atoms connected by covalent (chemical) connections. Atoms can be visualized as circles with a nucleus at the centre (made up of protons and neutrons) and one or more concentric circles surrounding them. These circles represent the "shells" or "levels" in which the electrons surrounding the nucleus of the atom are located, along with markings indicating the electron at each level.

A molecule is the smallest unit into which a substance may be subdivided and still remain the same thing. It has two or more atoms in it.

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Electricity flows in a circle. It flows from the outlet to the electric device and back to the outlet. If something gets in the way of this flow, what is it called?.

Answers

The things that get in the way of electrical flow is called insulator.

An insulator is a material (body or substance) that resists electrical flow through it. Therefore, it can be said that the insulator gets in the way of electricity flow. Electrical insulators usually have electrons that are tightly bounded to each other, making them not able to move freely.

Electrical insulators are usually used to support and separate electrical conductors in various electrical equipment. The purpose is to hold the conductors in position without allowing electrical current through itself.

Some examples of electrical insulators are:

GlassPaperWoodPlastic

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Answer: Insulator

Explanation:

If something gets in the way or breaks the flow of electricity, it is called an insulator.

A 213 kg crate slides 7.6 m until coming to a stop after being pushed by a large man.
The effective coefficient of kinetic friction between the crate and the surface is 0.37.
Calculate the work done by friction.
A)1,133.16 J
B)772.34 J
C)2,087.4 J
D)5,869.78 J

Answers

Answer:D

Explanation:

when the boy realizes he is late for dinner. he doubles his acceleration. whats the forcethat the boy is pulling the wagon now.

Answers

When the boy realizes he is late for dinner, he doubles his acceleration. The force that the boy is pulling the wagon now will also be doubled.

What is Newton's first law?

Unless influenced by an imbalanced force, an item at rest stays at rest, and an object in motion keeps moving in a straight path at a constant pace.

An item that is stationary is one that is not shifting or considered the beginning.  In such posture, all the forces exerting pressure on it are balanced out or their combined magnitudes are zero.

Based to their inertia, stationary objects which have already balanced forces acting on them prefer to stay that way. When an unbalanced force is operating on a stationary item will it move.

As we continuously  increases the force some particular object the acceleration also increases proportionally. so, the mass does not change as the acceleration increases, we can say that force that the boy is pulling the wagon is equal to acceleration. Therefore, if the boy double the force double the acceleration.

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dielectric breakdown in air occurs when the electric field is approximately 3 × 106 v/m. t or f

Answers

There is an air dielectric breakdown (10 mT). This happens when air (a dielectric) breaks down and charges are transferred from the sky to the earth.

How to fix?

In an electromagnetic wave, the connection between the strength of the electric and magnetic fields is E=cB.

where E is the size of the electric field.

The speed of light is c.

B is the magnetic field's strength.

E=3.106V/m is the electric field, and c=3.108m/s is the speed of light in this equation.

When we solve for B, we get B=E/c=3.106 V/m/3.108 m/s=0.01T=10mT.

Where is the site of dielectric breakdown?

When the electrical voltage across a material is greater than the substance's dielectric strength, dielectric breakdown occurs, leading to partial ionization. When a gas breakdowns, the ionization dramatically diminishes the gas' electrical insulating qualities, producing a spark or an arc.

How does a liquid dielectric breakdown happen?

High electric strengths (on the order of 1 MV/cm) and phenomena resembling those for gases control breakdown in highly purified liquid dielectrics. Liquids, which can contain particles, other liquids in suspension, and dissolved gases, are sadly readily polluted.

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The compound formed has a(n) ___________ bond and is a(n) _________________. Responses

Answers

Answer:

The compound formed has ionic bonds and is a crystalline solid

Explanation:

A metal plus a nonmetal chemical combine to form an ionic compound, with ionic bonds

Other Questions
what is capacity . please explain CO2 + 2LiOH = Li2CO3 + H2OTo ensure that the air in the shuttle remains free of excess CO2, engineers test the air-purification system.They combine 1.000 10^3 g LiOH with 8.80 10^2 g CO2. The reaction produces 3.25 10^2 g H2O.What is the theoretical yield of this test reaction? set up an equation and solve: the length of a rectangle is 4 feet more than three times the width. the perimeter is 48 feet. find the length and the width of the rectangle. Which 2 cities did ibn battuta visit during his 75,000 mile journey across africa and asia?. Let f be the continuous function defined on [-4,3] whose graph, consisting of three line segments and a semicircle centered at the origin, is given above. Let g be the function given by g(x) = integral^x_1, (t) dt. Find the values of g(2) and g(-2). For each of g'(-3) and g"(-3), find the value or state that it docs not exist. Find the x-coordinate of each point at which the graph of g has a horizontal tangent line. For each of these points, determine whether g has a relative minimum, relative maximum, or neither a minimum nor a maximum at the point. Justify your answers. For -4 < x < 3, find all values of v for which the graph of g has a point of inflection. Explain your reasoning. WILL GIVE BRAINLIEST AND 20 POINTS!!! which of the following are NOT one of the mechanisms for ascending to a leadership position in an organization A. election B. appointment C. emergence D. heredity an intense struggle to gain market share is a distinguishing characteristic of what type of market? If you have saved $4,000 in your savings account that earns 0.3% interest annually, what will most likely happen to the purchasing power of your savings over time? how much heat is required to completely melt a 4.6-kg block of ice having a temperature of 252.2 k? cice Ernie Brody had $3,620 on deposit at Savings Bank on July 1. The money earns interest at a rate of 6.5% compounded quarterly untilApril 1 of the fillowing year. . a makeup mirror has radius of curvature 54 cm. how far is the upright image from your face if it is 6 times larger? (b) 2(w 2 5 z)+3(2 x -2 -6)=4(4 7 y 3) THE WORLD WITH A THOUSAND MOONSCHAPTER 1: Thrill CruiseBy Edmond HamiltonLance Kenniston felt the cold realization of failure as he came out of the building into the sharp chill of the Martian night. He stood for a moment, his lean, drawn face haggard in the light of the two hurtling moons.He looked hopelessly across the dark spaceport. It was a large one, for this ancient town of Syrtis was the main port of Mars. The forked light of the flying moons showed many ships docked on the tarmaca big liner, several freighters, a small, shining cruiser and other small craft. And for lack of one of those ships, his hopes were ruined!A squat, brawny figure in shapeless space-jacket came to Kenniston's side. It was Holk Or, the Jovian who had been waiting for him."What luck?" asked the Jovian in a rumbling whisper."It's hopeless," Kenniston answered heavily. "There isn't a small cruiser to be had at any price. The meteor-miners buy up all small ships here.""The devil!" muttered Holk Or, dismayed. "What are we going to do? Go on to Earth and get a cruiser there?""We can't do that," Kenniston answered. "You know we've got to get back to that asteroid within two weeks. We've got to get a ship here."Desperation made Kenniston's voice taut. His lean, hard face was bleak with knowledge of disastrous failure.The big Jovian scratched his head. In the shifting moonlight his battered green face expressed ignorant perplexity as he stared across the busy spaceport."That shiny little cruiser there would be just the thing," Holk Or muttered, looking at the gleaming, torpedo-shaped craft nearby. "It would hold all the stuff we've got to take; and with robot controls we two could run it.""We haven't a chance to get that craft," Kenniston told him. "I found out that it's under charter to a bunch of rich Earth youngsters who came out here in it for a pleasure cruise. A girl named Loring, heiress to Loring Radium, is the head of the party."The Jovian swore. "Just the ship we need, and a lot of spoiled kids are using it for thrill-hunting!"Kenniston had an idea. "It might be," he said slowly, "that they're tired of the cruise by this time and would sell us the craft. I think I'll go up to the Terra Hotel and see this Loring girl.""Sure, let's try it anyway," Holk Or agreed.With the Jovian clumping along beside him, Kenniston made his way from the spaceport across the ancient Martian city.Read the following lines from the text:In the shifting moonlight his battered green face expressed ignorant perplexity as he stared across the busy spaceport.Select the correct meaning of the word battered. aClean bPristine cScarred dPleasantI will give brainlist please!! how to solve 4 divided by 3 the estimated regression equation is . a. what is the value of the standard error of the estimate (to decimals)? Dan is cutting 4.75-foot lengths of twine from a 249-foot spool of twine. He needs to cut 42 lengths and says that 40.5 feet of twine will remain. Show that this is reasonable. Jason spent $25.50 on movie tickets. Each movie ticket (m) cost $8.50 . Which equation could be used to represent how many tickets Jason bought? help quick, please i need to get this done tonight Simplify the expression (-3r^2+13)+2r(r-6)-4r (PICTURE INCLUDED) What are the missing parts that correctly complete the proof?