A 75-W lightbulb connected to a 120-V source experiences a voltage surge that produces 135 V for a moment. By what percentage does its power output increase

The net electric flux is determined by Gauss's law as follows: = Q/, where Q is the net charge inside of the sphere. As a result, the flux is given by = 1/(8.8510-12) = 1.13105 Nm2/C.

Electric flux: The term "electric flux" denotes the total number of electric field lines that move through a given area in a certain amount of time. Electric flux is equal to the product of the electric field, the surface area, and the angle formed by the intersection of the electric field and the surface area. ϕ E = E → . A → Magnetic flux: The number pf magnetic fields that flow through a specific area is referred to as magnetic flux.

The net charges that are present inside the conducting material due to the permittivity of space are equivalent to the electric flux, while the total magnetic field lines that penetrate the material's surface area are equivalent to the magnetic flux. Due to the electric field, the electric flux is created.

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Providing adequate lighting is crucial to ensuring a safe and productive work environment. The appropriate level of lighting in each area of operation can be achieved by using a combination of natural and artificial lighting sources.

The type and intensity of lighting required will depend on the task being performed and the area being lit. In general, bright, white light sources are preferred as they reduce eye strain and improve visibility. It is important to avoid glare and shadows that can impair visibility and cause accidents.

To ensure adequate lighting, lighting fixtures should be properly maintained and positioned to provide even illumination across the area. The use of dimmer switches and adjustable lighting can also provide flexibility in lighting levels, allowing for optimal lighting conditions for different tasks and activities. Additionally, using energy-efficient lighting sources, such as LED bulbs, can help reduce energy costs and promote sustainability. Overall, providing adequate lighting is essential for ensuring a safe and productive work environment.

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Answer:

The type of energy is potential energy

even though the centripetal force does no work, you are expending energy and doing work to keep the object in motion.

In Investigation 1, when you swing an object in a uniform horizontal circle on a rope over your head, the centripetal force does not do any work. The centripetal force is responsible for keeping the object moving in a circular path, constantly changing its direction but not its speed.

Work is defined as the transfer of energy that occurs when a force acts on an object and causes it to move in the direction of the force. In the case of circular motion, the centripetal force acts perpendicular to the direction of motion, towards the center of the circle. As a result, the work done by the centripetal force is zero because there is no displacement in the direction of the force.

However, while swinging the object, you are expending energy and doing work. You are providing the initial energy to set the object in motion and continuously exerting force to keep the object moving in a circular path. This work is done by the force you apply through the rope, which acts tangentially to the circular path.

The work you do transfers energy to the object, maintaining its circular motion. The energy you expend is eventually dissipated as heat due to various factors such as friction in the rope, air resistance, and internal friction within the object itself.

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Answer:

answer in the pic

Explanation:

if this is weong please tell me

1. 0.75 h and 88km/h 2.210 m and 35 s

The quantity of water in a beaker or a polystyrene cup does matter, but the reason why it matters is different for each container.

In a beaker, the quantity of water does not affect the temperature of the water significantly because glass is a good conductor of heat, meaning that the heat from the water is evenly distributed throughout the beaker. As a result, the temperature of the water remains relatively stable regardless of the quantity of water in the beaker.

On the other hand, in a polystyrene cup, the quantity of water does matter because polystyrene is a poor conductor of heat, meaning that the heat from the water is not evenly distributed throughout the cup. If there is a small quantity of water in the cup, the heat from the water is concentrated in a small area, causing the temperature to increase rapidly.

This can cause the cup to melt or deform. If there is a large quantity of water in the cup, the heat is distributed over a larger area, reducing the temperature increase.

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An electron experiences a force of constant magnitude that is always pointed perpendicular to its velocity since the force is F=qvB in a constant magnetic field. The electron will move in a circular orbit.

Magnetic fields surround permanent magnets and current-carrying conductors because of the movement of electrical charge.

A negatively charged subatomic particle known as an electron can either be free or attached to an atom. One of the three main types of particles within an atom is an electron that is bonded to it; the other two are protons and neutrons. The nucleus of an atom is made up of electrons, protons, and neutrons together.

Hence, an electron experiences a force of constant magnitude that is always pointed perpendicular to its velocity since the force is F=qvB in a constant magnetic field. The electron will move in a circular orbit.

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Answer:

Speed

Explanation:

The distance traveled by an object in a unit of time is speed

Frankenstein is attracted to science because he is a passionate and ambitious individual who is curious about the unknown.

Frankenstein is attracted to science because of the limitless possibilities it holds. He is drawn to the idea of being able to unlock the secrets of life and death, and create something entirely new. He is driven by the idea that science and technology can be used to improve the world and make life better for all.

He looks back on his attraction to science from his current perspective with a sense of regret and guilt, as his ambition to succeed in his experiments leads him to create a monster that causes immense suffering. He wishes that he had not been so ambitious and had instead explored other areas of study.

From his current perspective, however, Frankenstein looks back on his attraction to science with a sense of regret. He realizes that his ambition was misguided, and that his creations were not meant to be used for the betterment of mankind. He regrets the destruction and chaos that his creations caused, and the pain and suffering they inflicted on innocent people. He now understands that science and technology are powerful tools, but they must be used responsibly and with caution. He also realizes that there are limits to what science can do and that some things are simply beyond human understanding.

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The photon's wavelength emitted during the transition from n = 2 to n = 3 is approximately 256 nm. The photon's wavelength emitted during the transition from n = 1 to n = 3 is about 160 nm. The width of the box is approximately 0.622 nm.

The energy levels of a particle in a one-dimensional box:

Eₙ = (n² ×h²) / (8 × m × L²)

where:

Eₙ: energy level of the particle

n: quantum number of the energy level

h: Planck's constant

m: mass of the particle

L: width of the box.

Transition from n = 2 to n = 3:

Let's assume the wavelength of the photon emitted during this transition is λ.

ΔE = E₃ - E₂

ΔE = ((3² × h²) / (8 ×m × L²)) - ((2² × h²) / (8 × m × L²))

ΔE = (h² / (8× m × L²)) ×(9 - 4)

ΔE = (h²/ (8 × m × L²)) × 5

The energy difference is proportional to the frequency of the emitted photon:

ΔE = h × c / λ

where c is the speed of light.

We can equate the two expressions for ΔE:

(h² / (8 × m × L²)) × 5 = h × c / λ

λ = (8 × m × L² ×c) / (5 × h)

Plugging in the given values:

m = mass of the electron = 9.11 x 10⁻³¹ kg

L = width of the box (to be determined)

c = speed of light = 3 x 10⁸ m/s

λ = (8 ×(9.11 x 10⁻³¹ kg) × L² × (3 x 10⁸ m/s)) / (5 ×(6.626 x 10⁻³⁴ J·s))

Solving for L

L² = (5 × (6.626 x 10⁻³⁴J·s) × λ) / (8 ×(9.11 x 10⁻³¹kg) × (3 x 10⁸ m/s))

L² = 0.00047765 m²

L ≈ 0.021847 m

The wavelength of the photon is given by:

λ = (8 × (9.11 x 10⁻³¹ kg) × (0.021847 m)² × (3 x 10⁸ m/s)) / (5 × (6.626 x 10⁻³⁴J·s))

λ ≈ 256 nm

Transition from n = 1 to n = 3:

Following the same steps,

ΔE = E₃ - E₁

ΔE = ((3² × h²) / (8 ×m ×L²)) - ((1² × h²) / (8 × m × L²))

ΔE = (h² / (m × L²))

Using ΔE = h × c / λ:

(h² / (m × L²)) = h ×c / λ

Simplifying and solving for λ:

λ = (m × L² × c) / h

Plugging in the given values:

λ = ((9.11 x 10⁻³¹ kg) × (0.021847 m)² × (3 x 10⁸ m/s)) / (6.626 x 10⁻³⁴ J·s)

λ ≈ 160 nm

Width of the box (L):

From the above equations,

L² = (5 × (6.626 x 10⁻³⁴J·s) × (426 nm)) / (8 × (9.11 x 10⁻³¹ kg) × (3 x 10⁸ m/s))

L ≈ 0.000622 m or 160 nm

Therefore, the answers are 256 nm, 160 nm, and 0.622 nm respectively.

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The wavelength of the photon released during the change from n = 2 to n = 3 is roughly 256 nm. About 160 nm is the wavelength of the photon that is released when n = 1 changes to n = 3. The box has a width of about 0.622 nm.

Given values:

m = mass of the electron = 9.11 x 10⁻³¹ kg

L = width of the box (to be determined)

c = speed of light = 3 x 10⁸ m/s

The energy levels of a particle in a one-dimensional box:

Eₙ = (n² ×h²) / (8 × m × L²)

where:

Eₙ: energy level of the particle

n: quantum number of the energy level

h: Planck's constant

m: mass of the particle

L: width of the box.

Transition from n = 2 to n = 3:

The wavelength of the photon emitted during this transition is λ.

ΔE = E₃ - E₂

ΔE = ((3² × h²) / (8 ×m × L²)) - ((2² × h²) / (8 × m × L²))

ΔE = (h²/ (8 × m × L²)) × 5

The frequency of the photon that was released directly correlates with the energy difference:

ΔE = h × c / λ

,c is the speed of light.

Evaluating the two expressions for ΔE:

(h² / (8 × m × L²)) × 5 = h × c / λ

λ = (8 × m × L² ×c) / (5 × h)

λ = (8 ×(9.11 x 10⁻³¹ kg) × L² × (3 x 10⁸ m/s)) / (5 ×(6.626 x 10⁻³⁴ J·s))

Solving for L

L² = (5 × (6.626 x 10⁻³⁴J·s) × λ) / (8 ×(9.11 x 10⁻³¹kg) × (3 x 10⁸ m/s))

L ≈ 0.021847 m

The wavelength of the photon is given by:

λ = (8 × (9.11 x 10⁻³¹ kg) × (0.021847 m)² × (3 x 10⁸ m/s)) / (5 × (6.626 x 10⁻³⁴J·s))

λ ≈ 256 nm

Transition from n = 1 to n = 3:

ΔE = E₃ - E₁

ΔE = ((3² × h²) / (8 ×m ×L²)) - ((1² × h²) / (8 × m × L²))

ΔE = (h² / (m × L²))

Using ΔE = h × c / λ:

(h² / (m × L²)) = h ×c / λ

Solving for λ:

λ = (m × L² × c) / h

λ = ((9.11 x 10⁻³¹ kg) × (0.021847 m)² × (3 x 10⁸ m/s)) / (6.626 x 10⁻³⁴ J·s)

λ ≈ 160 nm

Width of the box (L):

From the above equations,

L² = (5 × (6.626 x 10⁻³⁴J·s) × (426 nm)) / (8 × (9.11 x 10⁻³¹ kg) × (3 x 10⁸ m/s))

L ≈ 0.000622 m or 160 nm

Thus, the answers are 256 nm, 160 nm, and 0.622 nm respectively.

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Answer:

C. 1.43 m/s

Explanation:

Velocity = displacement / time

v = (1 m − -9 m) / 7 s

v = 1.43 m/s

Answer: 71.6 degree farheniet

Explanation:

°F = °C × (9/5) + 32.

Given C = 22.

F = 22 × (9/5) + 32

F = 39.6 + 32

F = 71.6

Answer:

180m to the east

Explanation:

Displacement is the distance traveled in a specific direction. It is a vector quantity with both magnitude and direction. Therefore, the start and finish position is very paramount.

  point A runs 150m east,

   70m west

  100m east

                                       150m

                --------------------------------------------------------→

                                                                   70m

                                                         ←---------------------

                                                                   100m

                                                         -----------------------------------→

The displacement of the athlete  = 150 - 80 + 100  = 180m to the east

Ultra = X-ray

Explanation:

how are things going to paint the roof for beginners painting and decorating the whole house so I'm going away with a few sports mates for a couple nights for beginners but will have a look painting at a time and see what is going to be Strong enough

Explanation:

R = V/I

Since this is an I/V graph, the greater the slope of the line the lower the R value.

Hence we find the line with the smallest slope, which is conductor M.

The ratio of the deflection when each is connected in turns to a cell of e.m.f 25 V and internal resistance 50 ohms is 13: 12

Internal resistance can be described as the resistance within a battery, or other voltage source, that causes a drop in the source voltage when there is a current.

The parameters given are :

Coil 1 = 50 turns

Coil 2 = 500 turns

Resistance 1 = 1022

Resistance 2 = 6002

Internal resistance = 50 ohms

Emf = 25v

I = 25/ 50+ 10

I = 25/60

I = 5/ 12 A

\(I_{2}\) = 25/50+ 600

 = 25/ 650

 = 5/ 130 A

The ratio of the deflection when each is connected in turns to a cell of e.m. 25 V and internal resistance 50 ohms =

Q1/ Q2

Q1 = N1 x B x \(I_{1}\) / c

Q2 = N2 x B x \(I_{2}\) / c

therefore Q/ Q2 = (50 x 5/12 )/ (500 x 5/130)

Q1 / Q2 = 12/ 13 which 13: 12

Therefore, The ratio of the deflection when each is connected in turns to a cell of e.m. 25 V and internal resistance 50 ohms is 13: 12.

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Answer:

it will increase the frequency of collisions between the two reactants

Explanation:

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Answer:

As altitude increases and atmospheric pressure decreases, the boiling point of water decreases.

Answer:

25

Explanation:

I just did this

The % uncertainty from 0.36mm to meters is 0.1%.

1 mm = (1/1000)m

1 mm = 10⁻³m

1 m = 10³mm

So,

0.36 mm = 0.00036 m

The percentage uncertainty = 0.00036 x 100/0.36

% uncertainty = 0.1%

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S=d/t

S=2/16

S=0.125m/s

Answer:

Potential Energy at the greatest point = 37.5 J

Explanation:

Given :

Mass is 750 g

In term of kg :

Mass is 0.75 kg .

Velocity ( v ) = 10 m / sec

We have formula for kinetic energy :

K.E. = 1 / 2 m v²

Putting values now :

K.E. = 1 / 2 × 0.75 × 10 × 10

K.E. = 1 / 2 × 75 J

K.E. = 37.5 J

Since K.E . = P.E.

Thus potential energy of stone is 37.5 J .

Answer:

a)  ΔV₁ = 21.9 V, b) U₀ = 99.2 10⁻¹² J, c) U_f = 249.9 10⁻¹² J,  d)  W = 150 10⁻¹² J

Explanation:

Let's find the capacitance of the capacitor

         C = \(\epsilon_o \frac{A}{d}\)

         C = 8.85 10⁻¹² (8.00 10⁻⁴) /2.70 10⁻³

         C = 2.62 10⁻¹² F

for the initial data let's look for the accumulated charge on the plates

          C = \(\frac{Q}{\Delta V}\)

          Q₀ = C ΔV

           Q₀ = 2.62 10⁻¹² 8.70

           Q₀ = 22.8 10⁻¹² C

a) we look for the capacity for the new distance

          C₁ = 8.85 10⁻¹² (8.00 10⁻⁴) /6⁴.80 10⁻³

          C₁ = 1.04 10⁻¹² F

          C₁ = Q₀ / ΔV₁

          ΔV₁ = Q₀ / C₁

          ΔV₁ = 22.8 10⁻¹² /1.04 10⁻¹²

          ΔV₁ = 21.9 V

b) initial stored energy

          U₀ = \(\frac{Q_o}{ 2C}\)

          U₀ = (22.8 10⁻¹²)²/(2  2.62 10⁻¹²)

          U₀ = 99.2 10⁻¹² J

c) final stored energy

          U_f = (22.8 10⁻¹²) ² /(2  1.04 10⁻⁻¹²)

          U_f = 249.9 10⁻¹² J

d) the work of separating the plates

as energy is conserved work must be equal to energy change

          W = U_f - U₀

          W = (249.2 - 99.2) 10⁻¹²

          W = 150 10⁻¹² J

note that as the energy increases the work must be supplied to the system

Answer:

The way that objects float is that at any depth in a fluid there is an upward force due to the effect of gravity on the fluid. ... If the density is less than that of the fluid, the object will float upward due to the buoyancy from the fluid.

Explanation:

An ammeter always connected in series and a voltmeter always in parallel in a circuit.

An ammeter is always connected in series because it is used to measure the current flowing through a particular part of a circuit. When an ammeter is connected in series, all of the current flowing through the circuit also flows through the ammeter. By measuring this current, the ammeter can provide an accurate reading of the current in that part of the circuit. If an ammeter were connected in parallel, it would change the resistance of the circuit and interfere with the current flow, giving an inaccurate reading.

A voltmeter is always connected in parallel because it is used to measure the voltage difference between two points in a circuit. When a voltmeter is connected in parallel, it is connected across the two points where the voltage difference is to be measured. This means that the voltmeter has a very high resistance, which ensures that it draws very little current from the circuit and does not affect the voltage being measured. If a voltmeter were connected in series, it would change the resistance of the circuit and interfere with the voltage being measured, giving an inaccurate reading.

Hence, an ammeter always connected in series and a voltmeter always in parallel in a circuit.

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The swimmer's speed with respect to the water v. The downstream velocity of the swimmer is given by the sum of the river velocity and the swimmer's velocity 33.33 minutes

v_downstream = 0.30 m/s + v

The time required to swim 1.2 km downstream is 20 minutes, or

20 * 60 = 1200 seconds.

So the downstream velocity can be found as:

v_downstream = d / t = 1.2 km / (1200 s)

= 0.001 m/s

Rearranging the above equation, we get the swimmer's velocity:

v = v_downstream - 0.30 m/s

= 0.001 m/s - 0.30 m/s

= -0.299 m/s

The upstream velocity of the swimmer is given by the difference of the river velocity and the swimmer's velocity:

v_upstream = 0.30 m/s - v

= 0.30 m/s - (-0.299 m/s)

= 0.599 m/s

The time required to swim back to the original starting point from the downstream destination is the same as the time required to swim 1.2 km upstream:

t = d / v_upstream = 1.2 km / (0.599 m/s)

= 2.00 s * 10^3 s

= 2000 s

= 33.33 minutes

So it would take 33.33 minutes to swim back to the original starting point from the downstream destination.

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