Two lamps with different filament thicknesses, and therefore different resistances, are connected in series. Recall that the thicker the wire, the smaller the resistance. Greater current is in the lamp with the
a) thick filament
b) thin filament
c) same in each

Magintude of Acceleration = 6 m/s -2

given - Initial velocity = 0

Time = 4s

Distance travelled = S = 48m

Acceleration = a = ?

Thus,

S= ut + 1/2 at2
The rate at which an object's speed changes, or the pace at which velocity changes, is known as acceleration. Newton's second law states that acceleration is inversely proportional to mass and directly proportional to the total sum of all forces acting on an item. It's simple math: if a thing is being pushed by a number of forces, you need to add them up (they may be acting in different directions), then divide the total force by the mass of the object.

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When high voltages are present, a glow may be seen around sharp points, known as corona discharge.

This glow is caused by the ionization of the air molecules near the sharp point due to the electric field strength. The ionized air molecules emit light, creating a visible glow. The intensity and color of the glow depend on the voltage level and the gas composition of the surrounding environment.

Corona discharge is a phenomenon that occurs when high voltages are applied to a conductor, especially in the presence of a sharp point or a high electric field. It results in the ionization and excitation of the surrounding air molecules, creating a glowing or visible aura of light around the conductor. The ionized air can also produce a hissing or crackling sound. Corona discharge is often observed in high-voltage power lines, antennas, and other high-voltage equipment. It is important to note that corona discharge can cause power loss and interfere with the proper functioning of electrical systems, so efforts are made to minimize its occurrence in high-voltage applications.

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Answer: 35 m/s

Explanation: Gravitational acceleration only affects the vertical component of motion meaning the horizontal component never changes. This means 35 m/s is the correct answer.

A projectile is fired horizontally at an initial horizontal speed of 35 meters per second from a height of 65 meters, after falling 25 meters, the projectile's horizontal speed is 35 m/s.

The distance traveled in relation to the time it took to travel that distance is how speed is defined. Since speed simply has a direction and no magnitude, it is a scalar number.

Speed is calculated using the formula s=d/t, where s is the speed in m.s⁻¹, d is the distance in m, and t is the time in s.

Variable speed is when an object travels a different distance at the same time intervals, whereas uniform speed is when an item travels the same distance at the same time intervals.

Therefore, after falling 25 meters, the projectile's horizontal speed is 35 m/s.

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Answer:

When a bee stings, it injects methanoic acid into the skin which causes immense pain and irritation. Rubbing of baking soda on the sting area gives relief because, being alkaline in nature, baking soda neutralizes the effect of methanoic acid and gives relief.

A resistance of 140 ohm is needed to be added in parallel connection with 480 ohm resistor to fix the existing circuit.

It was revealed in the close inspection of an electric circuit that a 480 ohm resistors was inadvertently soldered in the place where 350 ohm resistor was needed.

Now because the 480 ohm resistor cannot be removed we have to fix the existing circuit by adding an another resistance in parallel with the 480 ohm resistance to make it equal to 350 ohm.

So, we write, let us say we added R in parallel,

1/350 = 1/R + 1/480

R = 1400ohm.

So, we need to add a 1400 ohm resistor in the existing circuit.

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Answer:

Radiotherapy

Explanation:

Answer:

Radioisotopes are used in medicine as tracers to detect and diagnose medical problems. Radioisotopes are also used in radiation therapy to treat cancer.

Explanation:

sample answer on edge:3

Answer:

falling iirc

Explanation:

Historically, photographs taken by American spy planes at high altitudes have been used for various purposes such as reconnaissance and intelligence gathering.

Depending on the specific photograph in question, it could potentially show a wide range of information such as military installations, troop movements, or other sensitive information. The altitudes at which a photo is taken can affect the level of detail that can be seen in the image. However, it is important to note that the use of such technology can also raise privacy and security concerns, particularly if it is used to gather information on individuals or groups without their consent or knowledge.

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Wanda can reply to her friend by saying that she is using a telephoto lens for their photography outing.

A telephoto lens is a type of camera lens that is designed to capture distant subjects by using a longer focal length than a standard lens. Telephoto lenses typically have a focal length of 60mm or longer, which allows them to see and record a very narrow view. This makes them ideal for capturing subjects that are far away, such as wildlife, sports events, and landscapes. Telephoto lenses are also popular for portrait photography because they can create a shallow depth of field, which helps to isolate the subject from the background.

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Answer:

Deepness and water temp

The correct statement is: Two objects are resolvable if the angle between them is smaller than that given by Rayleigh's criterion.

Rayleigh's criterion, also known as the Rayleigh criterion of resolution, provides a criterion for determining the minimum angle at which two objects can be resolved as separate entities in an optical system, such as a telescope. According to Rayleigh's criterion, two point sources are just resolvable if the central maximum of the diffraction pattern produced by one source coincides with the first minimum of the diffraction pattern produced by the other source.

In practical terms, this means that if the angle between the objects is smaller than the angle determined by Rayleigh's criterion, they will appear as separate and distinct objects. On the other hand, if the angle between the objects is equal to or greater than the angle given by Rayleigh's criterion, they will blend together and cannot be resolved as separate entities.

Therefore, for two objects to be resolvable, the angle between them must be smaller than the angle specified by Rayleigh's criterion. This criterion defines the limit of resolution and is influenced by factors such as the wavelength of light and the aperture size of the optical system.

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If we know the semimajor axis and eccentricity of an object's orbit, then we can determine the object's closest and farthest points from the mass it is orbiting. The semimajor axis is the distance from the center of mass of the object and the mass it is orbiting, and the eccentricity describes the shape of the orbit. If the eccentricity is zero, the orbit is a perfect circle, and the closest and farthest points are the same distance from the mass.

If the eccentricity is greater than zero, the orbit is elliptical, and the closest point is called the perihelion (or periapsis), while the farthest point is called the aphelion (or apoapsis). Knowing these points can help us understand the behavior of objects in orbit and make predictions about their movements.
If we know the semimajor axis and eccentricity of an object's orbit, then we can determine the object's closest and farthest points from the mass it is orbiting.

Step 1: Identify the semimajor axis (a) and eccentricity (e) values.
Step 2: Calculate the closest point (perihelion) using the formula: Perihelion = a * (1 - e)
Step 3: Calculate the farthest point (aphelion) using the formula: Aphelion = a * (1 + e)

By following these steps, you can find the perihelion and aphelion distances of an object in its orbit around the mass it is orbiting, using the semimajor axis and eccentricity.

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The horizontal force being applied by the partner is 692.8 N.

The horizontal force being applied by the partner is determined by applying Newton's second law of motion.

Mathematically, the Newton's second law of motion is given as;

F = ma

where;

The total weight of the trapeze artist can be resolved into horizontal component and vertical component.

The formula for the horizontal component of the weight of the trapeze artist is given as;

Fx = F cosθ

Wx = W cosθ

where;

Wx = ( 8 x 10² N ) x cos (30)

Wx = 692.8 N

Thus, the horizontal force applied by the partner is a function of the horizontal component of the weight of the trapeze artist.

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(i)Therefore, it takes approximately 9.27 hours to reach its full power output.(ii)It is necessary to have quick-start power sources, this helps maintain a stable and reliable electricity supply even when wind speeds fluctuate.(c)The Bremsstrahlung effect needs to be considered to ensure proper radiation protection.(d) The near-field region is characterized by strong electric and magnetic fields while the far-field region represents the radiation zone.

(i) To calculate the time it takes for the power station to reach its full power output, we can use the formula:

Energy = Power × Time

Given that the power station generates 6120 MWh of energy over a 10-hour period and the rated power at full capacity is 660 MW, we can rearrange the formula to solve for time:

Time = Energy ÷ Power

Converting the energy to watt-hours (Wh):

Energy = 6120 MWh × 1,000,000 Wh/MWh = 6,120,000,000 Wh

Converting the power to watt-hours (Wh):

Power = 660 MW × 1,000,000 Wh/MW = 660,000,000 Wh

Now we can calculate the time:

Time = 6,120,000,000 Wh ÷ 660,000,000 Wh ≈ 9.27 hours

Therefore, it takes approximately 9.27 hours (or 9 hours and 16 minutes) for the power station to reach its full power output.

(ii) The type of power station that can be started up fastest is a gas-fired power station. Gas-fired power stations can reach full power output relatively quickly because they use natural gas combustion to produce energy.

In contrast, other types of power stations, such as coal-fired or nuclear power stations, have longer start-up times. Coal-fired power stations require time to heat up the boiler and generate steam, while nuclear power stations need to go through a complex series of procedures to ensure safe and controlled nuclear reactions.

This is relevant to optimizing the usage of windfarms because wind power is intermittent and dependent on the availability of wind. This helps maintain a stable and reliable electricity supply even when wind speeds fluctuate.

(c) The Bremsstrahlung effect is a phenomenon that occurs when charged particles, such as electrons, are decelerated or deflected by the electric fields of atomic nuclei or other charged particles. As a result, they emit electromagnetic radiation in the form of X-rays or gamma rays.

In shielding design, the Bremsstrahlung effect needs to be considered to ensure proper radiation protection. These materials effectively absorb and attenuate the emitted X-rays and gamma rays, reducing the exposure of individuals to harmful radiation.

(d) The electromagnetic field output from an antenna can be represented by two main regions:

Near-field region: This region is closest to the antenna and is also known as the reactive near-field. It extends from the antenna's surface up to a distance typically equal to one wavelength. In the near-field region, the electromagnetic field is characterized by strong electric and magnetic field components.

Far-field region: Also known as the radiating or the Fraunhofer region, this region extends beyond the near-field region.The electric and magnetic fields are perpendicular to each other and to the direction of propagation.  The far-field region is further divided into the "Fresnel region," which is closer to the antenna and has some characteristics of the near field, and the "Fraunhofer region," which is farther away and exhibits the properties of the far-field.

The transition between the near-field and the far-field regions is gradual and depends on the antenna's size and operating frequency. The size of the antenna and the distance from it determine the boundary between these regions.

In summary, the near-field region is characterized by strong electric and magnetic fields, while the far-field region represents the radiation zone where the energy is radiated away as electromagnetic waves.

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Answer:

gas vibrate, move about freely at high speeds, liquid vibrate, move about, and slide past each other. solid vibrate (jiggle) but generally do not move from place to place

Answer:

210 m/s

Explanation:

We will use this equation for an elastic collision:

In this case, m₁ = mass of golf ball (0.046 kg) and m₂ = mass of the golf club (0.22 kg).

v₁ is 0 m/s since the ball is at rest on the tee.

v₂ is 44 m/s, given in the problem.

v₁ is what we are trying to find.

v₂ is 0 m/s since the ball will be at rest on the ground.

Plug these values into the elastic collision equation:

Simplify this equation.

Get rid of the units.

Multiply the left side of the equation.

Divide both sides by 0.046.

The speed of the ball when it leaves the tee is about 210 m/s.

Answer: 60

Explanation: if u hit it it will have impact and the impact added 10n

Stem-and-leaf plots are an excellent way to display data. The outliers in a stem-and-leaf plot are the observations that are located far away from the other observations.

Stem-and-leaf plots are excellent for displaying numerical data in an orderly manner. They assist in determining the minimum, maximum, and range of data and can assist in determining patterns and variations. They also provide an excellent visual representation of the distribution of data and are a fantastic tool for spotting outliers. Outliers are observations in a dataset that are considerably different from the other observations. They can be identified in stem-and-leaf plots as values that are located far away from the rest of the data.

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Answer: Density=0.8

Explanation: It's 0.8 because you are supposed to do m/v=d and that would be 40/50=0.8

Answer:

The density is 0.8 g/cc.

Explanation:

40g/50mL=0.8 g/cc.

0.8 g/cc is equal to 0.8 g/mL.

The primary job of a(n) ____

is to increase the power of a modified radio wave.

Answer:

Explanation:

Hope it helps:)

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Answer: Amplifier

Explanation: Edge 2021

Have a great day :D

The mass is the same since the number of each type of atom in the vessel is constant when the mass of vessel 5 at 127°c compare to its mass at 27°c.

According to the law of conservation of mass, mass is conserved, meaning that the total mass that was there before a chemical reaction is the same as the total mass that was present after the chemical reaction. In his combustion experiment, Lavoisier found that the mass of his original substance—a glass vessel, tin, and air—was equal to the mass of the produced substance—the glass vessel, "tin calx," and the leftover air.

This led him to formulate the rule of conservation of mass. The number of atoms should not change; only their arrangement can produce a new molecule or complex.

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Answer:

4.43 m/s

Explanation:

The radius of circle is = 2m

Acceleration due to gravity is = 9.8 m/s²

To find the speed the stone move for its centripetal acceleration to be equal to the acceleration due to gravity will be;

a=v²/r   where a is acceleration due to gravity and r is radius of the circle

9.8 =v²/2

9.8 *2 = v²

19.62 = v²

√19.62 =v

4.43 m/s = v

The required velocity is  4.4 m/s.

The centripetal acceleration is given by the formula;

ac= v^2/r

v = linear speed

r = radius of the circular path

We are looking for the velocity at which ac = g = 9.8m/s^2

We already have the radius of the circular path as 2.0 meters

9.8 m/s^2 = v^2/2 m

v = √2(9.8)

v = 4.4 m/s

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To determine the x- and y-components of each vector, we can use trigonometry.

For vector A:

x-component = 230 cos(15°) ≈ 222.85

y-component = 230 sin(15°) ≈ 59.27

For vector B:

x-component = 120 cos(237°) ≈ -107.75

y-component = 120 sin(237°) ≈ -75.94

For vector C:

x-component = 212 cos(188°) ≈ 112.84

y-component = 212 sin(188°) ≈ -163.63

To determine the direction and magnitude of the resultant vector, we can add up the x- and y-components of each vector.

x-component = 222.85 - 107.75 + 112.84 ≈ 227.94

y-component = 59.27 - 75.94 - 163.63 ≈ -180.3

The magnitude of the resultant vector is given by the Pythagorean theorem:

resultant magnitude = sqrt((227.94)^2 + (-180.3)^2) ≈ 292.9

The direction of the resultant vector is given by the arctangent of the y-component over the x-component:

resultant direction = atan(-180.3/227.94) ≈ -38.5°

Therefore, the answers to the questions are:

To move left or right (x-direction only): A) 53.1 Left

To move up or down (y-direction only): C) 69.1 Down

To move away from starting point and at what angle: D) 88.3 < 233.

An angle is a geometric figure that is formed by two rays or line segments that share a common endpoint, known as the vertex of the angle. The rays or line segments are referred to as the sides or legs of the angle. The measure of an angle is typically given in degrees, which is a unit of measurement for angles. One complete revolution around a circle corresponds to 360 degrees, while a half revolution corresponds to 180 degrees.

Angles are used in various fields, including mathematics, physics, engineering, and architecture. They are used to measure and describe the orientation and direction of lines, planes, and surfaces.

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Answer:

F= 1800N

Explanation:

the equation for force is F= ma

so plug in the numbers: F= (120)(15)

solve this to get F= 1800N

tip: don't forget to add the units when writing your answer :)

We are asked for the x coordinate of vertex

Here vertex is present somehow at 850-870nm

The most applicible answer should be 860nm

Option C is correct

The speed of an electron with a de Broglie wavelength of 0.15 nm is\(4.84 x 10^8 cm/s\).

The de Broglie wavelength of a particle is given by the equation:

λ = h / mv

Where

In this case, we are given that λ = 0.15 nm and m = \(9.109 x 10^-^3^1 kg\). We can solve for v using the equation above:

v = h / λm

=\(6.626 x 10^-^3^4 J s / (0.15 nm)(9.109 x 10^-^3^1 kg)\)

= \(4.84 x 10^8 cm/s\)

Therefore, the speed of an electron with a de Broglie wavelength of 0.15 nm is \(4.84 x 10^8 cm/s.\)

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The expression for the energy stored (E) in a stretched wire of original length (L), cross-sectional area (A), tension (T), and Young's modulus (Y) is given by E = Y * e * ln(L) * A

The work done to stretch the wire can be calculated by integrating the force applied over the displacement. In this case, the force applied is the tension (T) in the wire, and the displacement is the change in length (ΔL) from the original length (L) to the stretched length (L + ΔL).

The tension in the wire is given by Hooke's law, which states that the tension is proportional to the extension of the wire:

T = Y * (ΔL / L)

where Y is the Young's modulus of the material of the wire.

Now, let's calculate the work done to stretch the wire:

dW = T * dL

Integrating this expression from L to L + ΔL:

W = ∫ T * dL = ∫ Y * (ΔL / L) * dL

W = Y * ΔL * ∫ (dL / L)

W = Y * ΔL * ln(L) + C

Here, C is the constant of integration. Since the energy stored in the wire is zero when it is unstretched (ΔL = 0), we can set C = 0.

Finally, the expression for the energy stored in the wire (E) is:

E = W = Y * ΔL * ln(L)

or, if we substitute the cross-sectional area (A) and strain (e) of the wire, where e = ΔL / L:

E = Y * e * ln(L) * A

Thus, the expression for the energy stored (E) in a stretched wire of original length (L), cross-sectional area (A), tension (T), and Young's modulus (Y) is given by:

E = Y * e * ln(L) * A

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Answer:

Od- Wooden

Explanation:

It would not make sense if it was non-wood because that make it no a wood base product, OC is not right because its not a a plant that produces wood as its structural tissue and thus has a hard stem.   An OA justT o take or get a supply of wood. so its Od

Girls amass approximately 90% of their adult bone mass by the age of 18. This is an important period of bone growth and development, as it is when the body is able to absorb and store the most amount of calcium and other minerals necessary for strong bones.

Adequate intake of calcium and vitamin D during this period is crucial to ensure that girls reach their peak bone mass potential. Additionally, physical activity plays a significant role in bone health as weight-bearing exercise helps to stimulate bone growth and increase bone density.

It is important for girls to establish healthy lifestyle habits during adolescence in order to prevent bone loss and reduce the risk of osteoporosis later in life. Factors such as smoking, excessive alcohol consumption, and poor nutrition can all contribute to decreased bone density and increased risk of fractures. Therefore, it is essential for young girls to prioritize bone health and make healthy lifestyle choices to optimize their bone growth and development.

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