What principle is responsible for light spreading as it passes through an?

Answer:

Gravitational pulls things to the ground

Elastic is stretched or compressed or a shape or object

Kinetic is kinda like the force of motion

Hope this helps

In the gravitational energy, things are pulled to the ground by gravity, for elastic energy stretched, squeezed, or as a shape or item, and for kinetic energy it is similar to the force of motion.

Kinetic energy is the term used in mechanics to describe the impulse that an object experiences as it moves. It is described as the amount of effort needed to move someone of a certain mass to rest to a given velocity. Except for fluctuations in speed, the body retains its acceleration after receiving it during acceleration.

The body uses the same lot of fuel when slowing down from its current rate to a state of rest. Formally, kinetic energy refers to any element in the Lagrangian of such a system that seems to have a derivative with respect to time.

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upper body muscular strength

Answer:

Explanation:

muscular strength test

All 3-phase, 4-wire, 480Y/277 volt electrical services generally require ground-fault protection for each service disconnecting means when rated for at least 1000 amperes or more.

Ground-fault protection is an important safety measure in electrical systems to detect and prevent ground faults, which occur when an unintended electrical connection is made between an energized conductor and the ground. This protection is particularly crucial in high-power electrical services to ensure the safety of personnel and equipment. In the case of 3-phase, 4-wire, 480Y/277 volt electrical services, where there are three live conductors (phases) and a neutral wire, ground-fault protection is typically required for each service disconnecting means rated at 1000 amperes or more.

The specific rating of 1000 amperes serves as a threshold for when the ground-fault protection requirement applies. Services with lower ampere ratings may have different guidelines or exceptions, but for 3-phase, 4-wire, 480Y/277 volt electrical services rated at 1000 amperes or higher, ground-fault protection for each service disconnecting means is generally necessary to ensure the safety and proper functioning of the electrical system.

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Ground-fault protection must be provided for all 3-phase, 4-wire, 480Y/277 volt, electrical services when rated for 1000 amperes or more, as per Article 230.95 of the National Electrical Code. This protective measure aims to prevent electrical fires, decrease equipment damage, and enhance safety.

In accordance with Article 230.95 of the National Electrical Code (NEC), all 3-phase, 4-wire, 480Y/277 volt, electrical services require

ground-fault protection

for each service disconnecting means when rated for

1000 amperes

or more. Ground-fault protection is necessary to prevent electrical fires, reduce equipment damage, and enhance safety. This system monitors the electrical current and breaks the circuit when it detects a leak, i.e., a ground fault. For example, in a 480Y/277V system, if a fault arose allowing current to leak directly to the ground or through a person, the ground-fault protection would trigger the disconnecting means, shutting off the electrical service, and thus, minimizing hazards.

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Answer:

Silver

Explanation:

Silver would be the best conductor.

Answer:

silver

Explanation:

transition metal that has properties of a good conducfor.

You would need a magnetic field strength of approximately 2.72 Tesla for your cyclotron to accelerate protons to 10% of the speed of light in a vacuum chamber with a diameter of 46 cm.

To calculate the magnetic field strength required to accelerate protons to 10% of the speed of light in a cyclotron, we can use the following formula:

B = (m * v) / (q * r)

Where:
B is the magnetic field strength,
m is the mass of the proton,
v is the velocity of the proton (10% of the speed of light),
q is the charge of the proton, and
r is the radius of the vacuum chamber.

First, let's determine the mass of the proton. The mass of a proton is approximately 1.67 x 10⁻²⁷ kilograms.

Next, we need to calculate the velocity of the proton. To find 10% of the speed of light, we can multiply the speed of light by 0.1. The speed of light is approximately 3 x 10⁸ meters per second.

v = 0.1 * (3 x 10⁸),

0.1 * (3 x 10⁸) = 3 x 10⁷meters per second.

Now, we can calculate the charge of the proton. The charge of a proton is approximately 1.6 x 10^-19 coulombs.

Finally, we need to determine the radius of the vacuum chamber. The diameter of the vacuum chamber is given as 46 cm. To convert this to meters, we divide by 100.

r = 46 / 100

46 / 100 = 0.46 meters.

Now, we can substitute these values into the formula to find the magnetic field strength:

B = (1.67 x 10^-27 * 3 x 10⁷) / (1.6 x 10⁻¹⁹ * 0.46)

Simplifying the equation:

B ≈ 2.72 Tesla.

Therefore, you would need a magnetic field strength of approximately 2.72 Tesla for your cyclotron to accelerate protons to 10% of the speed of light in a vacuum chamber with a diameter of 46 cm.

In conclusion, to determine the magnetic field strength required, we used the formula B = (m * v) / (q * r). By substituting the values for mass, velocity, charge, and radius, we found that the magnetic field strength needed is approximately 2.72 Tesla.

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The reason for the difference in collapse behavior between normal matter and dark matter in clumps containing both is due to their different physical properties and interactions.

Normal matter consists of particles that can interact electromagnetically, such as electrons and protons. When normal matter clumps collapse, the particles collide and transfer energy through electromagnetic interactions, which causes them to heat up and increase their thermal motion. This thermal energy can counteract the force of gravity that is causing the collapse and slow down or stop the collapse process. However, normal matter can continue to collapse by radiating away some of its thermal energy through various processes, such as cooling through radiation or emitting photons.

On the other hand, dark matter particles do not interact electromagnetically and only interact through gravity and weak nuclear force. This means that when dark matter clumps collapse, the particles cannot transfer energy through electromagnetic interactions and cannot easily radiate away thermal energy. As a result, the dark matter particles can continue to collapse even when their thermal energy increases. This is why dark matter tends to dominate the overall mass of galaxy clusters and other large structures in the universe, while normal matter is more dispersed and less concentrated in these structures.

In summary, the difference in collapse behavior between normal matter and dark matter in clumps containing both is due to the different physical properties and interactions of the particles that make up each type of matter.

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The average speed of the trolley after 5 seconds, given that it travels from2 m/s to 14 m/s is 8 m/s

First, we shall determine the total distance travelled in 5 seconds. Details below:

s = ½(u + v) × t

s = ½ × (2 + 14) × 5

s = ½ × 16 × 5

s = 8 × 5

s = 40 meters

Finally, we shall determine the average speed of trolley. This is shown below:

Average speed = Total distance / total time

Average speed = 40 / 5

Average speed = 8 m/s

Thus, the average speed of the trolley is 12.8 m/s

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Answer:

Explanation:

Definition: Noise pollution is generally defined as regular exposure to elevated sound levels that may lead to adverse effects in humans or other living organisms.

Measures to be taken:

Value of current \(I_{b}\) is 82.9 A

A conductor carrying current generates a magnetic field around itself. In other words, it behaves like a magnet and develops a force when the magnet is brought into a magnetic field. Magnetic fields also exert equal and opposite forces on conductors through which current flows. A conducting conductor produces its own magnetic field and experiences a force when interacting with an external magnetic field.

When two energized wires are placed parallel to each other, their magnetic fields interact and exert a force between the wires. The force acting on each wire is the same in magnitude but opposite in direction. This is true even if the conductors carry currents of different magnitudes.

mg = \(\frac{4\pi * 10^{-7} }{4\pi }\) × \(\frac{2 I_{a}I_{b} l }{r}\)

Given, Iₐ =  130 A

m =  0.100 g/cm or 0.1×10⁻²g/m

So, by substituting values in the formula:

0.1×10⁻²× 9.8 = 10⁻⁷ ×\(\frac{2 * 130* I_{b} }{2.2 * 10^{-2} }\)

\(I_{b}\) =  82.9 A

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God created all things in the beginning of time

Explanation:

He said the things he wanted to make an they came into existence.

Im christian so if u dont like the answer or get mad i'm sorry i couldnt help you

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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To rank the electric potentials V_1 to V_5 from largest to smallest, we need to consider their positions inside the capacitor. Since the electric potential decreases from the positive plate to the negative plate, the order will be:
V_1 (largest) > V_2 > V_3 > V_4 > V_5 (smallest).

To find the ratio V_2/V_1 of the electric potential at points 1 and 2, we must know their respective distances from the positive plate. Without specific distance values, we cannot calculate the exact ratio. However, since V_1 is closer to the positive plate than V_2, we know that the ratio V_2/V_1 will be less than 1.

The ratio E_2/E_1 of the electric field strength at points 1 and 2 is equal to 1 because the electric field inside a parallel plate capacitor is constant. This means that the electric field strength at any two points inside the capacitor is the same.

For the proton released from rest in the center of each capacitor, the arrow direction on each proton will show the direction it moves. Protons are positively charged particles and will move towards the negative plate in the electric field created by the capacitor.

As for which proton reaches a capacitor plate first or if they are simultaneous, without knowing the exact dimensions and electric field strengths of the capacitors, we cannot determine this.

However, if the capacitors have the same electric field strength and dimensions, then the protons would reach the plates simultaneously.

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Answer:

C=F×W

so, W=C/F

Explanation:

frequency=F

wavelength=W

speed of light =C in that medium

Answer:

7 seconds

Explanation:

please see paper!

vf² = vo²+2ad

vf=vo+at

vf²=3.5²+2.2.75

vf²=312.25

vf=17.67 m/s

vf=vo+at

17.67 = 3.5 +2t

t=7.085 s

The formation of a core made mostly of iron ultimately leads a massive star to become a supernova.

This is because the fusion of iron does not release energy, unlike other elements, so the core cannot continue to generate heat and pressure to support the outer layers of the star. The core then collapses inward, causing a rapid implosion and rebound that triggers a supernova explosion.

This process occurs when a massive star exhausts its nuclear fuel, and the core collapses under gravitational pressure. The collapse causes the outer layers of the star to explode in a supernova event.

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Answer: hi your question is incomplete  attached below is the complete question

answer :

magnitude of acceleration :  | a | = g = 9.81 m/s^2

direction : a = - g j

Explanation:

Neglecting Air resistance

magnitude of acceleration :

| a | = g = 9.81 m/s^2

Direction of acceleration

a = - g j  ( given that the direction of acceleration is against the acceleration due to gravity i.e. in the opposite direction )

Explanation:

since oil needs more boiling time and a higher boiling temperature the oil would have to be in the pot longer than the water if it needs to be boiled longer that is why the blue line for oil temp. is significantly higher than that of the water temp.

Answer:

If a man starts running on a boat with an acceleration a with respect to the boat, there is no external force that acts on the Boat+Man system

Answer:

Explanation: Mary has 20 joules of Kinetic energy

2. Yes his kinetic energy be twice as much

3. If Roberto runs twice as fast, his Kinetic energy will be 4 times as much

4. 16875 Joules

5. 5.77 m/s

6. 8 kg

7. 345600 J

The EMF of a cell represents its maximum potential difference, while the potential difference across the cell when passing a current through an external resistance is reduced due to the internal resistance of the cell.

The electromotive force (EMF) of a cell refers to the maximum potential difference that the cell can provide when it is not connected to any external circuit. It is essentially the voltage produced by the chemical reactions occurring within the cell. On the other hand, the potential difference across the cell when it is passing a current through an external resistance is often lower than the EMF.

This difference in values can be attributed to the internal resistance of the cell. When a current is drawn from the cell, it encounters resistance within the cell itself due to factors such as the resistance of the electrolyte and the internal structure of the cell. This internal resistance causes a voltage drop within the cell, reducing the potential difference across the external circuit.

According to Ohm's Law (V = I * R), when current flows through a resistance (R), a voltage drop (V) occurs. In this case, the internal resistance of the cell causes a voltage drop within the cell itself. Hence, the potential difference across the external resistance is slightly lower than the EMF of the cell.

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Since pressure falls as we ascend higher in the atmosphere, when a helium balloon climbs, the pressure inside the balloon exceeds the pressure outside, before finally bursting.

The gas inside the balloon expands as it climbs as a result of a decrease in the atmospheric pressure around it. At the float altitudes, the atmosphere is 100 to 200 times less dense than it is at sea level.

When balloons are released into the air, they don't just disappear; instead, they can cause a lot of issues since they can either ascend until they rupture and fall down to Earth

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Answer:

power p =24 watt

charge q=120 C

time t = 60s

let V be the potential difference

we know that

work done =qV = pt

qV = Pxt

120V = 24 * 60

V = (24 * 60) / 120

V = 12 volts

"The factors that affect the rate of a reaction are temperature, concentration and catalysts." The correct options are D, E, H.

The rate of the reaction rises along with the temperature. A catalyst's concentration enables a reaction to reach equilibrium more rapidly.

Catalysts are molecules that aid a reaction proceed more quickly without being consumed. They accelerate the process by reducing the activation energy required for it to happen. As the temperature rises, more molecules of the reactants will collide, increasing the likelihood that the reaction will take place.

This process is aided by the existence of a catalyst because it offers a different reaction pathway that uses less energy than the uncatalyzed pathway. As a result, the reaction can proceed more rapidly and at a lower temperature, enabling it to achieve equilibrium more quickly. As a result, the presence of a catalyst can considerably speed up a reaction, especially as temperature rises.

Thus, the correct options are D, E, H.

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Answer:

Explanation:

the Abu Dhabi Petroleum Company

The first commercially viable oil discovery was made at Bab in 1960. In 1962, the company was renamed the Abu Dhabi Petroleum Company. Exports began to flow from the Jebel Dhanna terminal on December 14, 1963.

Answer:

hiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

Answer:

1200

Explanation:

The car covers a distance d after time t of

d = (2.8 m/s²) t²

Solve for t when d = 69 m:

69 m = (2.8 m/s²) t²

t² = (69 m) / (2.8 m/s²)

t ≈ 4.96 s

The normal force exerted on the car at the bottom of the track (point A) is 18.5 N which is the difference between the gravitational force and the centripetal force acting on the car.

When the car is at the top of the track (point B), the normal force is equal to the sum of the gravitational force and the centripetal force acting on the car. At the top of the track, the normal force is directed towards the center of the circle and is given by:

Nₒ = m(g + v²/R)

where m is the mass of the car, g is the acceleration due to gravity, v is the speed of the car, and R is the radius of the track.

Since the car is traveling at a constant speed, the net force on the car is zero. At the bottom of the track (point A), the normal force is directed away from the center of the circle and is equal to the difference between the gravitational force and the centripetal force:

N = mg - mv²/R

Given that the normal force at the top of the track (point B) is 6.00 N, we can use this information to find the normal force at the bottom of the track (point A):

N = Nₒ + mg - 2Nₒ

  = 2Nₒ + mg

  = 2(6.00 N) + (0.660 kg)(9.81 m/s²)

  = 12.00 N + 6.49 N

  = 18.49 N

  ≈ 18.5 N

Therefore, the normal force on the car when it is at the bottom of the track (point A) is approximately 18.5 N.

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Answer:

acceleration = v-u/ t

= 15-10/5

= 5/5

= 1 m/s2

Explanation:

hope this helped you.

Answer:

\(\boxed {\boxed {\sf 1 \ m/s^2}}\)

Explanation:

Acceleration is the change in velocity over the change in time. Therefore, the formula for calculating acceleration is:

\(a= \frac{v_f-v_i}{t}\)

Since the body's velocity increased from 10 meters per second to 15 meters per second 15 m/s is the final velocity and 10 m/s is the initial velocity. The time is 5 seconds.

\(a= \frac{ 15 \ m/s - 10 \ m/s}{5 \ s}\)

Solve the numerator.

\(a= \frac{ 5 \ m/s }{5 \ s}\)

Divide.

\(a= 1 \ m/s/s\)

\(a= 1 m/s^2\)

The acceleration is 1 meter per second squared.