Where does geothermal energy come from?
CHOOSE FROM THE FOLLOWING:
1. Energy directly from the sun
2. Energy from plants that used sunlight
3. Energy from the effect of the sun on the air and water
4. Energy is not originally from the sun

The ranking of the voltages, V₁, V₂, V₃, and V₄ in the order of decreasing voltage value is; V₂ > V₃ > V₁ > V₄

A voltage is the difference in potential or pressure that pushes or causes the flow of electric current in a circuit or conducting loop.

The current flowing through the circuit can be found using the following formula;

\(I=\dfrac{V}{R}\)

The formula for conductivity is presented as follows;

\(\sigma =\dfrac{l}{R\times A}\)

Where;

σ = The conductivity of the material

l = The length

R = The resistance to electricity

A = The cross-sectional area of the conductor

Therefore;

\(R=\dfrac{V}{I}\)

\(R=\dfrac{l}{A\times \sigma}\)

\(\dfrac{V}{I} =\dfrac{l}{A\times \sigma}\)

\(V=\dfrac{l \times I}{A\times \sigma}\)

Based on the dimensions of the cylinders, obtained from a similar question, we get;

\(V_1=\dfrac{3\cdot L \times I}{\pi \cdot D^2\times \sigma} = 3\times \dfrac{ L \times I}{\pi \cdot D^2\times \sigma}\)

\(V_2= \dfrac{2\cdot L \times I}{\pi \cdot \dfrac{D^2}{4} \times \sigma} = \dfrac{8\cdot L \times I}{\pi \cdot D^2\times \sigma} = 8\times \dfrac{ L \times I}{\pi \cdot D^2\times \sigma}\)

\(V_3=\dfrac{L \times I}{\pi \cdot \dfrac{D^2}{4} \times \sigma} =\dfrac{4\cdot L \times I}{\pi \cdot D^2\times \sigma}= 4\times \dfrac{L \times I}{\pi \cdot D^2\times \sigma}\)

\(V_4=\dfrac{L \times I}{\pi \cdot D^2\times \sigma} = 1\times \dfrac{ L \times I}{\pi \cdot D^2\times \sigma}\)

Therefore;

V₁ = 3·V₄

V₂ = 8·V₄

V₃ = 4·V₄

The rank of the voltages in the order of decreasing value is therefore;

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Answer:

Newtons second law

Explanation:

Depends on mass

Answer:

2nd law

Explanation:

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Answer:

Decrease by 125

Explanation:

The electric field of a diapole varies.

It varies as

E diapole ∝ 1/pi³

Pi is the distance from center of diapole to part. Therefore If distance from diapole increases by 5

E ∝ 1/5pi³

It decreases by 125

A negative percent error occurs when there is a negative change in the measurement.

A negative percent error occurs when taking change in a particular measurement.

For example, let us obtain the change in the following measurement as shown below.

initial measurement = 150 units

final measurement = 100 units

Find the percentage change in the following measurement;

percentage change = ( final measurement - initial measurement ) / ( initial measurement ) x 100%

percentage change = ( 100 - 150 ) / 100 x 100 %

percentage change = -50 %

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Answer:

In a step-up transformer, the secondary coil is made of same wire as the primary coil but it is rolled with the presence of the insulated which never conduct the opposite current to the coil.

Hence it function property without meeting any fire and other problem.

Even if you want to get clear ideas, then you have to go with official website.

Answer:

220 km/hr

Explanation:

Answer:

generator

Explanation:

it can run an electric current to an outlet and let it charge

The pilot's total velocity is 116.3 knots in the direction of 62.3⁰.

The pilot's total velocity is calculated by applying the principle of relative velocity.

The total velocity is also the resultant velocity and the magnitude of the pilot's total velocity is calculated by applying Pythagoras theorem as follows;

R = √ (V₁² + V₂²)

R =  √ (54² + 103²)

R = 116.3 knots

The direction of the velocity vector is calculated as follows;

tan θ = (103 knots) / (54 knots)

θ = tan⁻¹ (103/54)

θ = 62.3⁰

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Volume of rectangular block is 75.4 cm^3

Density of the rectangular block is 8.02 g/cm^3

Volume is simply defined as the space occupied within the boundaries of an object in three-dimensional space.

It is also known as the capacity of the object.

Volume of rectangular block = length× breadth× height

=2.9 cm × 2.6 cm × 10.0 cm

=75.4 cm^3

Density is defined as the substance's mass per unit of volume.

Mathematically ,density is defined as mass divided by volume.

Density of the block = Mass of block / volume of block

=605.0 g / 75.4 cm^3

=8.02 g/cm^3

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Answer:

a group of organs working together to perform a function.

Explanation:

Answer:

33.5J

Explanation:

Given:

Mass of the canister= 3.1 kg

Initial velocity of canister= v(i)= 4.4i m/s

Final velocity of canister= v(f)= 6.4j m/s

Force magnitude( xy plane)= 5 N

The magnitude of vector V'= Vxi + Vyj + Vzk

|V|= √( Vx^2 + Vy^2 + Vz^2

From Kinectic energy and work theorem.

Net work = Kinectic energy of the canister

ΔK= W

(Kf - Ki)= W

Where Kf= final Kinectic energy

= 1/2 mv^2

If we input the given values we have,

= 1/2 × 3.1 ×√(4.4^2 + 0^2 + 0^2)^2 = 30J

Ki= initial Kinectic energy

= 1/2 mv^2

If we substitute the given values we have

=1/2 × 3.1 ×√(0^2 + 6.4^2 + 0^2)^2 = 63.5 J

Work done by canister = (final Kinectic energy - initial energy)

= 63.5- 30

=33.5J

Hence, work done on the canister 33.5J

The unit vector notation in the given direction is \(0.58 \hat x + 0.81 \hat y\).

A physical quantity that has both directions and magnitude is referred to as a vector quantity.

A lowercase letter with a "hat" circumflex, such as "û," is used to denote a vector with a magnitude equal to one. This type of vector is known as a unit vector.

In terms of subtracting a vector, it works the same as adding the vector's opposite.

Given that:

\(\vec A = 22 \hat x + (-14)\hat y,\\\vec B = 2.5\hat x + 13\hat y.\)

( two given vectors are written here.)

Therefore: the subtraction of these two vectors will be:

\(\vec A - \vec B = (= 22 \hat x + (-14)\hat y) - (2.5\hat x + 13\hat y)\\= 19.5\hat x - 27 \hat y\)

Unit vector in that direction of vectors  is =

\(= \frac{19.5\hat x - 27 \hat y}{\sqrt{19.5^2 + (-27)^2} } \\= 0.58 \hat x + 0.81 \hat y\)

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Answer:

Explanation:

The rms speed:

Vrms = (500 + 600 + 700 + 800 + 900) / 5 = 700 m/s

Answer:

The number of images formed by two adjacent plane mirrors depends on the angle between the mirror. If (in degrees) is angle between the plane mirrors then number of images are given by, n = 360 θ − 1.

Answer:

I KNOW THE ANSWER IT WILL COST 30$

Explanation:

The total distance traveled by the hawk during motion is 96 km.

The given parameters;

To determine the total distance traveled by the hawk, we will assume that the hawk flies continuously until the two trains meet each other.

The time for the two trains to meet each other is calculated as follows;

\((V_1 - (-V_2)) t = distance \ apart\\\\(V_1 + V_2 )t = distance \ apart\ \\\\(20 + 20) t = 64\\\\t = \frac{64}{40} \\\\t = 1.6 \ hours\)

The total distance traveled by the hawk is calculated as follows;

total distance = speed x time of motion

\(total \ distance = 60 \ \frac{km}{h} \times 1.6 \ h\\\\total \ distance = 96 \ km\)

Thus, the total distance traveled by the hawk during motion is 96 km.

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Answer:

- They need oxygen to burn fuel

- Aerodynamics

- Extreme temperatures

- Radiation

- Pressure issues

Explanation:

A airplane is a heavier-than-air aircraft kept aloft by the upward thrust exerted by the passing air on its fixed wings and driven by propellers, jet propulsion, etc.

Aeroplanes cannot travel in space for several reasons:

They need oxygen to burn fuel - Aeroplane engines rely on the oxygen in the atmosphere to burn fuel and generate thrust. In space, there is no atmosphere so there is no oxygen for the engines to work.

Aerodynamics - Aeroplane wings generate lift by interacting with the air. In space, there is no air so wings would be unable to generate any lift. Aeroplanes rely on aerodynamics to fly which does not work in space.

Extreme temperatures - In space, temperatures can range from -150 degrees Celsius to 150 degrees Celsius. Aeroplanes are designed to operate within a much narrower temperature range. The extreme cold and heat of space could damage aeroplane components.

Radiation - In space, there are high levels of radiation from the Sun and cosmic rays. Aeroplane bodies are not designed to shield against this type of radiation and it could damage electronics and affect aeroplane systems.

Pressure issues - Aeroplanes are designed to withstand air pressures at altitudes up to around 12 kilometers. In low-Earth orbit and beyond, the air pressure is essentially zero. This extreme change in pressure could cause structural damage to the aeroplane.

In summary, while aeroplanes are designed to fly through the Earth's atmosphere, they lack the key features needed to operate in the extreme environment of outer space like spaceships. Aeroplanes require things like oxygen, aerodynamics and being able to withstand changes in pressure - all of which do not exist or work the same way in space.

Explanation:

The wing is pushed up by the air under it. Large planes can only fly as high as about 7.5 miles. The air is too thin above that height. It would not hold the plane up.

(a) Value of true anomaly (v= 90°)(b) v= √2µ/explanation:the periapsis and apoapsis were defined as the points where the spacecraft is closest to and furthest from the planet, respectively.

The periapsis occurs when ν = 0 while the apoapsis occurs when ν = π. Suppose that the periapsis and apoapsis radii are denoted as rp and ra, respectively.

Simplifying Eqs. The periapsis and apoapsis radii are given as-rp = a(1 − e) equation  and ra = a(1 + e) equation (1.56)Recall from Eqs.

That the periapsis and apoapsis radii of the orbit of a spacecraft are given as rp = a(1 − e) and ra = a(1 + e), respectively.

At some point on the orbit between periapsis and apoapsis the radius, r, must be equal to the semi-major axis, a.

Assuming a gravitational parameter µ for the planet, determine(a) The value of the true anomaly when r = a. At r=a.

Therefore, it is true anomaly v= 90°(b) The speed of the spacecraft at the point when r = a.velocity v= √μ* √ 2/r-1/a sense, r=av= √2μ/a.

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Answer:

The distance is 2.94 mm.

Explanation:

Magnetic field, B = 1.7 mT

Current, I = 25 A

Let the distance is d.

The magnetic field is given by

\(B = \frac{\mu o}{4\pi}\times \frac{2I}{r}\\\\1.7\times 10^{-3} = 10^{-7}\times \frac{2\times 25}{r}\\\\r = 2.94\times 10^{-3} m \\\\ r = 2.94 mm\)

Answer:

mirrors set parallel to each other at 45 degree angle.

real

Answer: 2134

Explanation:

I just had this question on my exam

The advantages of wind energy over fossil fuels are that it does not emit pollutants, it is a renewable source of energy and it is a freely available source of energy.

What is wind energy?

The process that describes the generation of wind power or the mechanical power using the flow of wind itself, is known as wind energy.

Following are the advantages of wind energy over fossil fuels -

Thus, we can conclude that the advantages of wind energy over fossil fuels are that it does not emit pollutants, it is a renewable source of energy and it is a freely available source of energy.

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Cheese is made of casein protein, which is originally made from milk and is high in protein. The texture of the cheese is determined by the quality of the milk, so cow's milk cheese differs from goat's milk cheese.

Diary products are made from milk, such as cheese, curd, yogurt, etc., but all of them have different nutrients. The quality of these dairy products depend upon the quality of the milk, as some milking animals have a higher concentration of fats in their milk than other animals. These dairy products are used in different industrial sectors, such as for making ice cream, chocolate, and different food products.

Hence, cheese is made up of casein proteins that are present in the milk.

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The answer is in fact c

The type of reaction the chemical equation represent is a decomposition reaction.

Decomposition reaction is a type of chemical reaction in which a large compound is broken down or degraded into simpler substances.

Therefore, type of reaction the chemical equation represent is a decomposition reaction.

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Answer:

920000

Explanation:

Each kg contains 1,000 grams

Answer:

The answer is 0.042 Hz (rounded)

or 0.0417 Hz

Explanation:

Hope it helps

Answer:

The answer is 0.041Hz

Explanation:

The answer is 0.041Hz

I guess

The volume of the solid immersed in the liquid is  5 x 10⁻⁵ m³.

The volume of the solid is calculated as follows;

V = (Ws - Wa) / (ρg)

where;

Ws = 0.2 kg x 9.8 m/s²

Ws = 1.96 N

Wa = 0.16 kg x 9.8 m/s²

Wa = 1.568 N

ρ = 0.8 x 1000 g/km³ = 800 kg/m³

The volume is calculated as;

V = (1.96 - 1.568 )/(800 x 9.8)

V = 5 x 10⁻⁵ m³

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