In electric motors and electric generators, which part is responsible for transferring current from the power source to the commutator or from the slip rings to where the electricity is needed? armature brush axle magnet

The correct statement regarding lightning is as follows: Victims who are struck by lightning often experience severe full-thickness burns (option A).

Lightning is an electrical discharge caused by imbalances between storm clouds and the ground, or within the clouds themselves.

Lightning strike is a lightning bolt, stroke of lightning, one of the events during an electrical storm when lightning strikes (an object on) the ground or an aircraft in flight.

Most deaths after lightning strikes occur either because of primary cardiac arrest or hypoxia-induced secondary cardiac arrest, however, survivors have experienced debilitating injuries, burns and ongoing disability, including symptoms like seizures and memory loss.

Therefore, severe full-thickness burns are the symptoms or signs of lightning strike.

Learn more about lightning strike at: https://brainly.com/question/16471493

#SPJ1

An engine moves a boat through the water at a constant speed of 15 m/s. The engine must exert a force of 6.0 kN to balance the force that the water exerts against the hull. Power is the measure of how fast work can be done. The unit of power is watts (W), which can be defined as the amount of work done in one second.

For such more question on measure

https://brainly.com/question/25770607

#SPJ8

The correct order of how new oceanic crust is formed from mantle rock at divergent boundaries is: upwelling of mantle rock, formation of basaltic lava, spreading of lava to form new oceanic crust, formation of hydrothermal vents, and subduction of oceanic crust at a subduction zone.

The formation of new oceanic crust at divergent boundaries is a continuous process that involves several steps. The first step in the process is the upwelling of mantle rock to the ocean floor. This is caused by the divergence of the tectonic plates, which creates a gap that is filled by molten rock from the mantle.

Once the mantle rock reaches the surface, it cools and solidifies to form basaltic lava. This lava then spreads out and covers the ocean floor, forming a thin layer of new oceanic crust. As the lava cools, it contracts and forms cracks, which are filled with mineral-rich seawater that solidifies to form hydrothermal vents.

Over time, the new oceanic crust continues to move away from the divergent boundary and is pushed beneath the continental crust at a subduction zone. This process causes the oceanic crust to be recycled back into the mantle and creates a continuous cycle of new crust formation and destruction.

For more such questions on Oceanic crust.

https://brainly.com/question/5637320#

#SPJ11

Answer: X rays are high energy electromagnetic waves, but visible light is medium energy electromagnetic waves.

The visible spectrum is very narrow compared to the X-ray spectrum.

X rays can penetrate the human body but visible light is not capable of doing that. Hope this helped! :)

Answer:

a. T₂ = 60 N

b. W = 25.98 N

Explanation:

a.

Taking right side as positive x direction, the equation for sum of forces in x-direction can be written as follows:

\(T_{2}Sin\ 30^o - T_{1} = 0\\T_{2}Sin\ 30^o = T_{1}\\T_{1} = (T_{2})(Sin\ 30^o)\\where,\\T_{2} = 30\ N\\Therefore,\\T_{1} = (30\ N)(Sin\ 30^o)\\\)

T₁ = 15 N

b.

Taking upward direction as positive y direction, the equation for sum of forces in y-direction can be written as follows:

\(T_{2}Cos\ 30^o - W = 0\\T_{2}Cos\ 30^o = W\\W = (30\ N)Cos\ 30^o\\\)

W = 25.98 N

Answer:

Earth's magnetic field aligns the magnet in the compass with its north pole. A second method is to observe the night sky in the polar regions. Northern and Southern Lights are produced by the interaction of the Earth's magnetic field with solar radiation.

Hope this helps!!!

When using the method of initial rates for a kinetic study, the reaction is performed several times one reactant concentration is kept constant, and the other varies.

Kinetic studies are used to identify the rate of chemical reactions also called chemical kinetics.

In this process, a kinetic model is designed to study the rates of the pathways of the reactions taking place in a chemical reaction.

In general, kinetic studies are of critical importance as they provide verification for the chemical processes being carried out at the moment.

In chemistry, having sufficient knowledge about chemical reactions and mechanisms can be really helpful to find out the best way for a reaction to take place in the best possible short time.

Moreover, the study also allows you to learn about the reactant formation rate and the reactant rate of formation effectively.

If you need to learn more about reactants click here:

https://brainly.com/question/26283409

#SPJ4

Answer:

c.

Explanation:

they are all almost correct.

c is the only fully correct option

Your answer of approximately 23.53 minutes represents the time it takes for the tank to have 30 gallons of water remaining. The graph of this function will result in a valid function since it passes the horizontal line test, as you mentioned.

a) V(t) = 100(1 - t/40)^2 represents the volume of water remaining in the tank after t minutes. To find the inverse function, V^-1(t), we'll switch the roles of V and t. First, let y = V(t):
y = 100(1 - x/40)^2
Now, solve for x in terms of y:
√(y/100) = 1 - x/40
x/40 = 1 - √(y/100)
x = 40(1 - √(y/100))
So, V^-1(t) = 40(1 - √(t/100)). This inverse function represents the time it takes for the tank to have a certain volume of water remaining.
b) To find V^-1(30), plug 30 into the inverse function:
V^-1(30) = 40(1 - √(30/100)) ≈ 23.53

To know more about function visit :-

https://brainly.com/question/30721594

#SPJ11

Answer:

Because it has more texture and is solid. Its like glass

Explanation:

Answer:

Why is ice more reflective (has higher albedo) than liquid water? They're both the same substance (water). Is something quantum mechanical involved?

Explanation:

In fact ice is slightly less reflective than water. The reflectivity is related to the refractive index (in a rather complicated way) and the refractive index of ice is 1.31 while the refractive index of water is 1.33. The slightly lower refractive index of ice will cause a slightly lower reflectivity. In both cases the reflectivity is about 0.05 i.e. at an air/water or air/ice surface about 5% of the light is reflected.

Answer:

By dividing the mass by the volume

Explanation:

This equation shows how much stuff is in a given volume. This is what density is.

Earthquake focal depth is related to the concept of earthquake depth.

Earthquakes occur at different depths in the Earth's lithosphere and are related to the tectonic settings.

The focal depth is defined as the distance from the Earth's surface to the earthquake hypocentre.

Match each plate tectonic setting to earthquake depth, subduction zone transform shallow only divergent Intermediate only deep only shallow, intermediate and deep:

Subduction zones:

Intermediate and Deep Transform faults:

Shallow only Divergent plate boundaries:

Shallow only Earthquakes occur along the boundaries of tectonic plates.

The plate tectonic boundaries can be categorized into three types:

convergent boundaries, divergent boundaries, and transform boundaries.

The seismic activity that occurs at subduction zones has intermediate and deep focal depths. Transform faults have shallow focal depths only. Divergent plate boundaries have shallow focal depths only.

To learn more about the Earthquake focal depth from the given link.

https://brainly.com/question/248561

#SPJ11

The final volume of water in the container after increasing the temperature is 203.8 m³.

From the given,

The initial volume of water (Vο) = 200 cm³

Initial temperature = 4°C = 4+273 = 277K

Final temperature = 95°C = 273+95 = 368 K

Volume expansion co-efficient = 210×10⁻⁶(°C)⁻¹

Final volume =?

β = 1/Vο (ΔV/ΔT),  β represents the volume expansion coefficient, ΔV change in volume, ΔT is the change in temperature, and Vο is the initial volume.

ΔV = β×Vο×ΔT

     = 210×10⁻⁶×200×(368-277)

    =  210×10⁻⁶×200×91

ΔV = 3.83 m³

ΔV = final volume - initial volume

final volume = ΔV + 200

                    = 3.82 +200

                    = 203.82 m³

Final volume = 203.82 m³.

Thus, the final volume of the water is 203.82 m³.

To know more about the volume expansion coefficient:

https://brainly.com/question/31456049

#SPJ1

A shadow zone occurs for P-waves because P-waves refract as they go through the outer core, following a curved path through the mantle, and they do not travel through the outer core.

In more detail, P-waves are generated during earthquakes and propagate through Earth's layers. When they reach the outer core, which is liquid, their speed decreases, causing them to refract or bend.

This refraction creates a curved path through the mantle, leading to an area on Earth's surface where P-waves are not detected, known as the shadow zone. The shadow zone occurs between approximately 103 and 142 degrees from the earthquake's epicenter.

P-waves can still be detected beyond this range because they refract again as they exit the outer core, returning to a more direct path. The fact that P-waves do not travel through the outer core contributes to the formation of the shadow zone, as their energy is not transmitted through this layer.

To know more about P-waves click on below link:

https://brainly.com/question/20340342#

#SPJ11

A correct reading of the value 19.0 in the output of a linear regression analysis is that there is a projected rise of 19.0 ppm in the concentration of zinc for every increase of 1 ppm in the concentration of lead discovered in the fish.

In statistics, a linear method known as linear regression is used to describe a scalar response and one or more explanatory factors.

Linear regression analysis is used to forecast the value of a variable based on the value of another variable. The dependent variable is the one you're trying to forecast. The variable you are using to predict the value of the other variable is known as the independent variable.

To know more about concentration

https://brainly.com/question/29564436

#SPJ4

Answer:

2 ZnS + 3O2 ---> 2ZnO + 2 SO2

Explanation:

2 ZnS + 2O2 ---> 2ZnO + SO2

There are 2 Zn atom on the LHS and 2 Zn on the RHS. Hence the Zn is balanced on both sides of the equation.

There are two S atom on the LHS but there is only one S atom on the RHS.

Hence we will balance the S atoms

2 ZnS + 2O2 ---> 2ZnO + 2 SO2

Now the oxygen is unbalanced as there are three oxygen molecule on the RHS but only two on the LHS.

Hence, the balanced equation would be

2 ZnS + 3O2 ---> 2ZnO + 2 SO2

In the US Customary System (USCS), atmospheric pressure is commonly measured in pounds per square inch (psi).

The standard atmospheric pressure in the USCS is approximately 14.7 psi. This value represents the pressure exerted by the Earth's atmosphere at sea level under normal conditions.

In the International System of Units (SI), atmospheric pressure is typically measured in pascals (Pa) or kilopascals (kPa).

The standard atmospheric pressure at sea level is 14.7 psi (pounds per square inch) in the USCS system and 101.325 kPa (kilopascals) in the SI system.

1 psi = 6895 Pa

1 kPa = 0.0145 psi

The standard atmospheric pressure in SI is approximately 101,325 pascals or 101.325 kilopascals. This value represents the pressure exerted by the Earth's atmosphere at sea level under normal conditions.

It's important to note that atmospheric pressure can vary due to factors such as altitude, weather conditions, and local variations in air density.

However, the standard values mentioned above provide reference points for measuring and comparing atmospheric pressure in the USCS and SI systems.

To learn more about atmospheric pressure click here; brainly.com/question/26338396

#SPJ11

Answer: A

Explanation:

The coefficient of kinetic friction between the tires and the road is 4.7.

To calculate the coefficient of kinetic friction, we can use the formula:

coefficient of kinetic friction = change in speed/force of friction.

The change in speed is 46 km/h - 0 km/h = 46 km/h.

The force of friction is the mass of the object times the acceleration due to gravity (9.8 m/s2).

We will assume the mass of the object is 1 kg.

Therefore, the force of friction is 9.8 N.

We can now calculate the coefficient of kinetic friction: coefficient of kinetic friction = 46 km/h/9.8 N = 4.7.

Therefore, the coefficient of kinetic friction between the tires and the road is 4.7.

To know more about coefficient of kinetic friction click here:

https://brainly.com/question/13828735

#SPJ11

Answer:

The net force on the object is 35 N directed up.

Explanation:

Net Force

The force is a vector because it has magnitude and direction. The net force is the sum of all the individual forces acting on an object.

Let's assume the forces directed upward are positive and the forces directed down are negative.

Force A: +50 N

Force B: -30 N

Force C: +25 N

Force D: -10 N

Net Force= 50 - 30 + 25 - 10 = 35 N

The net force on the object is 35 N directed up.

When the mass reaches its maximum displacement, its instantaneous velocity must be zero.

When an object undergoes simple harmonic motion, such as a mass oscillating on a spring, it moves back and forth between two extreme points: the maximum displacement from its equilibrium position and the minimum displacement. At the maximum displacement, the mass stops and changes direction, meaning that its velocity is zero.

However, at any other point during the motion, the velocity of the mass is not zero. In fact, the velocity of the mass is constantly changing as it moves back and forth.

At any point during the motion, the instantaneous velocity of the mass is the velocity of the mass at that specific moment in time.

Therefore, when the mass reaches its maximum displacement, its instantaneous velocity must be zero. This is because the mass is changing direction at that point, and its velocity is at a minimum. As the mass moves away from the maximum displacement point, its velocity starts increasing again until it reaches a maximum velocity at the equilibrium position, where the displacement is zero.

Learn more about instantaneous velocity here

brainly.com/question/30219010

#SPJ4

If you are at latitude 59° north of the earth's equator, the angular distance from the northern horizon up to the north celestial pole will be 59 degrees.

The celestial pole is a star located at the Earth's poles. If you stand at any of Earth's poles, you will observe the North Stars directly overhead. The star is fixed in the sky's position; it neither rises nor sets. However, as you travel from the equator toward the pole, the angular distance between the star and the northern horizon increases.The angular distance from the northern horizon up to the north celestial pole is the observer's latitude. That means, for an observer located at a point of latitude 59 degrees N, the north celestial pole is 59 degrees above the horizon (the observer is in the Northern hemisphere).

Therefore, the angular distance from the northern horizon up to the north celestial pole is 59 degrees. This means that, if you stand at a point of latitude 59 degrees N, you will observe the north celestial pole 59 degrees above the northern horizon. This phenomenon happens because the Earth rotates on its axis, which makes the stars appear to rotate around the celestial pole.

To know more about the celestial pole visit:

https://brainly.com/question/30418300

#SPJ11

A particle with a charge of 5. 0 μc is placed at the corner of a cube. the total electric flux through all sides of the cube is  7.1 × \(10^4 Nm^2/C\).

Electric flux is a measurement of how many electric field lines are present at any given surface. It has a scalar value. Voltmeters are its SI unit. Gaussian Law It is known as a closed surface when the total flux linked inside it is equal to one zero times the total charge contained within it.

The electric flux is positive when electric lines emerge from a surface and negative when the same lines enter a surface.

Flux through any surface is given by;

                                        Φ\(= \frac{Q}{E}\)

Where, E = The magnitude of the electric field.

            Q = The charge of the particle.

If a corner atom is shared by eight neighboring such cubes, then one- eight part of the corner atom or particle contributes to each cube.

                            Φ \(= \frac{Q}{8E}\) = \(\frac{5 * 10^-^6}{8*8.5 * 10^-^1^2}\)

                                         = 7.1 × \(10^4 Nm^2/C\)

Learn more about electric flux here:

https://brainly.com/question/26289097

#SPJ4

Answer: 20mm/s

Explanation: Maximum displacement in shortest time....

Answer:

36km/h = 10m/s

Explanation:

That's the formula to convert

The net force acting on the airplane is 25N.

Forces acting on the paper airplane when it is in the air:

Given.

Weight of the paper airplane, F1 = 16N

The force of air resistance, F2 = 9N

Net force = F1 + F2

Net force = 25N

Thus, the net force acting on the airplane is 25N.

Learn more about the net force here:

https://brainly.com/question/18109210

#SPJ1

If negligible velocity at inlet (C 1 ≈0), the velocity (C2) of steam (in m/s) at the nozzle exit is 447.21 m/s.

According to question:

The steady flow energy equation for steady flow devices

m (h1 + ((c1)2/2) + z1g) + Q = m (h2 + ((c2)2/2) + z2g) + Wcv

C1 = 0

Wcv = 0

z1 = z2

mh1 + Q = mh2 + m((C2)2/2)

m((C2)2/2) = m(h1-h2) + Q

0.1 × ((C2)2/2) × 10-3 = 0.1(2500-2350) -5

C2 = 447.21 m/s

Thus, the negligible velocity at inlet (C 1 ≈0), the velocity (C2) of steam (in m/s) at the nozzle exit is 447.21 m/s.

Learn more about velocity, here:

https://brainly.com/question/12937242

#SPJ4

The correct answer is frequency.

The number of cycles or vibrations per unit of time is known as the frequency in a system undergoing simple harmonic motion. Frequency is a fundamental characteristic of oscillatory motion and is measured in hertz (Hz).In simple harmonic motion, an object oscillates back and forth around an equilibrium position, following a sinusoidal pattern. The frequency of the motion determines how quickly the object completes one full cycle or vibration.The relationship between frequency (f), period (T), and angular frequency (ω) in simple harmonic motion is as follows:

f = 1/T

ω = 2πf

Where T is the period, representing the time taken to complete one full cycle, and ω is the angular frequency, representing the rate of change of angle with respect to time.The frequency of a system in simple harmonic motion describes the number of cycles or vibrations completed by the object per unit of time. It is an important parameter that characterizes the oscillatory behavior of the system.

for such more questions frequency

https://brainly.com/question/254161

#SPJ11