Explain the relation between area, distance and capacitance

Answer:

yea it seems pretty simple.... just follow the instruction

The speed of the wind from the east with 3.7 m/s is pushing the paper airplane that flies with a velocity of 1.5 m/s north. Then the resultant velocity of the plane is 3.9 m/s.

Velocity is a physical quantity measuring the distance travelled by an object per unit time. It is a vector quantity thus characterized by a magnitude and direction.

The velocity of an object moving north relative to wind towards east can be expressed as a resultant velocity or relative velocity of the former as:

v = √v1² + v2²

Given v1 = 1.5 m/s

v2 = 3.7 m/s

then v = √1.5² + 3.7² = 3.9 m/s

Therefore, the total velocity of the paper airplane is 3.9 m/s.

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a) To find the initial velocity of the granite cube, use the conservation of energy principle.
The gravitational potential energy (GPE) at the top of the ramp is converted into

kinetic energy

(KE) at the bottom, which is then conserved during the collision.GPE = mghKE = 1/2mv²mgh = 1/2mv²v = √(2gh)where m = 120 g = 0.12 kg, g = 9.8 m/s², h is the height above the table to release the granite cube, and v is the velocity of the cube just before the collision.

When the steel cube is at rest, all of the kinetic energy is

transferred

to the steel cube.mv = mv₁ + mv₂where m₁ = 120 g = 0.12 kg and m₂ = 300 g = 0.3 kg are the masses of the granite and steel cubes, respectively. Since the collision is elastic, the kinetic energy is conserved.0.12v = 0.12(170) + 0.3v₂0.18v = 20.4 + 0.12v₂v₂ = 108 m/sNow, use the conservation of energy principle again to find the height above the table that the granite cube should be released to achieve this velocity.GPE = KE_m²gh = 1/2mv₂²h = (v₂²/2g)h = (108²/2(9.8))h ≈ 607 mmb) Use the conservation of momentum principle to find the final velocity of Olaf and the ball.

In this case,

momentum

is conserved in the horizontal direction before and after the collision.m₁v₁ = m₂v₂ + m₃v₃where m₁ = 0.4 kg is the mass of the ball, m₂ = 0.1 kg is the mass of Olaf, v₁ = 20 m/s is the initial velocity of the ball, v₂ = 0 m/s is the initial velocity of Olaf, v₃ is the final velocity of Olaf and the ball, and m₃ = m₁ + m₂ = 0.5 kg. Solving for v₃ gives:v₃ = (m₁v₁ - m₂v₂)/m₃ = (0.4)(20)/(0.5) = 16 m/sTherefore, Olaf and the ball move with a velocity of 16 m/s after the collision.c) To find Olaf's final velocity after the collision in the opposite direction, use the conservation of momentum principle again.

This time, momentum is

conserved

in the vertical direction before and after the collision.m₁v₁ + m₂v₂ = m₁v₃ + m₂v₄where v₄ is Olaf's final velocity in the opposite direction, which is what we're looking for. Since Olaf is initially at rest in the vertical direction, v₂ = 0. Also, the vertical component of the ball's velocity is zero after the collision, so v₃ = vf.cosθ, where θ is the angle of incidence (45°) and vf is the final velocity of the ball. Therefore,m₁v₁ = m₁vf.cosθ + m₂v₄Solving for v₄ gives:v₄ = (m₁v₁ - m₁vf.cosθ)/m₂ = (0.4)(8.3)/0.1 = 33.2 m/sTherefore, Olaf's final velocity after the collision in the opposite direction is 33.2 m/s.

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Answer: 721.13

Explanation:

The density of the gasoline will be "721.13 kg/m²". To understand the calculation, check below.

According to the question,

Mass, m = 58.7 kg

Volume, V = 0.0814 m³

We know the relation,

→ Density = \(\frac{Mass}{Volume}\)

or,

→            d = \(\frac{m}{V}\)

By substituting the values, we get

                = \(\frac{58.7}{0.0814}\)

                = 721.13 kg/m²

Thus the above approach is correct.

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Light is radiant energy in the form of a wave of electromagnetic energy.

Light is a form of electromagnetic radiation that is visible to the human eye. It is made up of a stream of energy particles, called photons, that travel in a wave-like pattern. It has various properties, including intensity, color, and direction, which can be used to explain its behavior. It can be described as having both a particle-like nature and a wave-like nature. The particle-like nature of light is exhibited in the way it travels in packets of energy, known as photons. The wave-like nature of light is demonstrated by the way it can be bent, diffracted, and refracted.
The intensity of light is determined by the amount of energy that a photon has. The color of light is determined by the wavelength of the light, with different colors having different wavelengths. Direction is also an important property of light, as it determines how light will be bent when it passes through an obstacle or is reflected off of a surface.
Light plays a critical role in the lives of humans and other organisms. It is used in vision, to help organisms understand the world around them. Light also has numerous applications in science and technology, such as in communications, photography, and solar energy.
In conclusion, light is a form of electromagnetic radiation composed of photons that travel in a wave-like pattern. It has various properties, including intensity, color, and direction, that are used to explain its behavior. Light is important for vision and has various uses in science and technology.

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Answer:

thank you very much for giving me points.

Explanation:

I really appreciate it so muchhhhh so muchhhh thanks again

Answer:

all of the above

Explanation:

they all require speed to beat

Answer:

All of the above

Explanation:

if your taking any kind of quiz or even review and there's a choice of "all of the above" it's always right because that answer won't be on every question!

Earth is larger than Mars. Additionally, Mars' circumference is around half that of the Earth's. Therefore, around 6.5 planets the size of Mars could fit inside the Earth if it were cracked open like an egg.

Not only is Mars smaller than Earth, but it is also less dense. This indicates that the gravitational force of gravity on Mars' surface is just 38% as powerful as that of gravity on Earth.

Therefore, 8.7 × 1016 N of gravitational force pulls the Earth and Mars together. The two planets are 5.5 × 1010 meters apart. The mass of the Earth is 6.0 × 1024 kg.

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A magnet attract a steel nail for the reason that nail is a temporary magnet whether or not it is in a magnetic field. The correct option is B.

A substance that is negatively charged at one end and positively charged at another end creating the magnetic field around it.

A nail is a magnet that can attract the particle that are charged. The nail is a temporary magnet whether or not it is in a magnetic

field.

Magnets have their own magnetic properties. They can be permanent or temporary. Magnets are made by induction or rubbing process or by cutting into small magnet pieces.

Thus, the correct option is B

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Answer:

The correct answer is:

Explanation:

the iorn in the steel becomes magnetized when the nail is in a magnetic field

A wire of given material having length l and area of cross section A has resistance of 4 Ohm. The resistance of the second wire is 2 Ohm.

The resistance of a wire is given by the formula:

R = (ρ * l) / A

where R is the resistance, ρ is the resistivity of the material, l is the length of the wire, and A is the cross-sectional area of the wire.

Let's assume the resistivity of the material is the same for both wires.

For the first wire:

Resistance (R1) = 4 Ohm

Length (l1) = l

Cross-sectional area (A1) = A

Using the resistance formula, we can rearrange it to solve for the resistivity (ρ):

ρ = (R * A) / l

Now let's calculate the resistivity for the first wire:

ρ1 = (4 Ohm * A) / l

For the second wire:

Length (l2) = l/2

Cross-sectional area (A2) = 2A

Using the resistivity formula, we can calculate the resistance (R2) for the second wire:

R2 = (ρ * l2) / A2

Substituting the value of ρ1 for ρ and the given values:

R2 = [(4 Ohm * A) / l] * (l/2) / (2A)

Simplifying the expression:

R2 = 2 Ohm

Therefore, the resistance of the second wire, with length l/2 and cross-sectional area 2A, is 2 Ohm.

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The ideal gas equation of state to calculate the final pressure of the system is PV = n .

Final pressure is a term used to describe the pressure at the end of a thermodynamic process, such as a cooling or heating cycle. It is the pressure that remains after all of the energy in the system has been converted into work. In other words, it is the pressure that is reached after all of the energy has been used up. Final pressure is a measure of the total energy in the system, including kinetic and potential energy. It is an important factor in determining the efficiency of a system and its overall performance.

The isothermal expansion of a system means that the temperature remains constant. Therefore, the initial temperature of 160°C is also the final temperature.The energy balance for this system is : Q + W = ΔU

Since the process is reversible, the work done by the system is equal to the change in enthalpy, which is given by the following equation:W = ΔH

Since the temperature remains constant, the change in enthalpy is equal to the change in internal energy: ΔH = ΔU

Substituting this into the energy balance equation, we get: Q + ΔH = ΔU

Substituting the known values, we get: 2700 kJ + ΔH = 0

Solving for ΔH, we get: ΔH = -2700 kJ.

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Sunlight at a wavelength of 0.4 μm (micrometers) is absorbed (i.e. reduced) by about 0 to 12 percent by the atmosphere when it gets to the surface of the earth.

Between 0.40 and 0.71 micrometers (m) is the wavelength of visible light. In this region, the sun only emits 44% of its total radiation. The spectrum of solar energy ranges from around 0.1 to 4.0 micrometers. The 0.1 to 0.4 micrometer wavelength range contains around 7% of the sun's radiation (UV). Near infrared radiation from the sun falls in the range of 0.71 to 1.5 micrometers, whereas far infrared radiation falls in the range of 1.5 to 4.0 micrometers.

Extraterrestrial radiation is solar radiation that occurs outside the earth's atmosphere. The extraterrestrial irradiation is typically 1367 W/m2. As the earth circles the sun, this number fluctuates by about 3%.

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Answer: 90 km

Explanation: 60 * 1.5

Explanation:

Please give a brainliest answer

Gravity is a major force in slab pull Sub-ducting plates move faster than non-sub-ducting plates. Sub-ducting oceanic lithosphere is denser than asthenosphere are the characteristics of slab pull.

Slab pull is a process causing the subduction of oceanic lithosphere. It is the dominant mechanism of plate tectonic motion in which an area of the Earth's oceanic lithosphere moves under an overriding plate, which causes it to sink into the Earth's mantle. It occurs when the gravity of the sub-ducting slab of lithosphere, which is denser than the material around it, causes the slab to move slowly and steadily into the Earth's interior. The slab pull force is the major contributor to plate motion and is the result of the sinking of cold, dense lithosphere into the mantle.

The characteristics of slab pull are:

1. Subduction: Slab pull is caused by subduction, where one tectonic plate slides beneath another and is forced down into the mantle. Subduction occurs at convergent plate boundaries, such as subduction zones.

2. Negative Buoyancy: Sub-ducting lithosphere has a negative buoyancy, meaning it is denser than the surrounding asthenosphere and is therefore pulled down. This induces a down-force on the overriding lithosphere, which is known as slab pull.

3. Moving Plates: Slab pull is responsible for the movement of oceanic lithosphere, which is constantly being recycled. As oceanic lithosphere is sub-ducted, new lithosphere is formed at divergent plate boundaries and is then pushed away from the ridge.

4. Stress: Slab pull also plays a role in creating stress in the lithosphere. As plates move away from the ridge, they create tension in the lithosphere. This tension is released when the plates meet a subduction zone, resulting in an earthquake.

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Answer:

A

Explanation:

How hard you must push down on the handle is by applying a force of 215.63 N

The moment of a force about a point is the turning effect of the force about that point.

The moment of a force M = Fd where

Now, for you to lift up the car, the moment due to your force about the fulcrum, M equals the moment due to the force on back of car. M'

M = M'

FD = F'd where

Making F subject of the formula,we have

F = F'd/D

Substituting the values of the variables into the equation,we have

F = F'd/D

F = 6900 N × 0.050 m/1.6 m

F = 345 Nm/1.6 m

F = 215.625 N

F ≅ 215.63 N

So, how hard you must push down on the handle is by applying a force of 215.63 N

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a) The isocost curve equation is G = (20000 - 100C)/500. b) The isocost curve equation is G = (30000 - 100c)/500. c) The isocost curve equation is G = (20000 - 100C)/375. d)  The isocost curve equation is G = (20000 - 120C)/500.

To draw the isocost curve showing the different combinations of gas and coal, we need to use the cost per unit values for coal and gas, as well as the given expenditure (TC) and the changes in expenditure or prices.

Let's denote the quantity of coal as C and the quantity of gas as G. The cost per unit of coal is 100, and the cost per unit of gas is 500.

(a) Initial expenditure (TC) of 20000:

To find the combinations of gas and coal that can be purchased with an initial expenditure of 20000, we can use the following isocost equation

TC = 100C + 500G

We can rearrange the equation to solve for G in terms of C

G = (TC - 100C) / 500

Now we can plot the isocost curve with TC = 20000 using the equation above.

(b) Expenditure (TC) increases by 50%

If the expenditure increases by 50%, the new expenditure (TC_new) becomes 1.5 × TC = 1.5 × 20000 = 30000.

We can use the same isocost equation as before, but with the new expenditure value:

TC_new = 100C + 500G

Rearranging the equation to solve for G

G = (TC_new - 100C) / 500

Now we can plot the isocost curve with TC_new = 30000.

(c) Gas price reduced by 25%:

If the gas price is reduced by 25%, the new cost per unit of gas (Gas_new) becomes 0.75 × 500 = 375.

We can use the original isocost equation, but with the new cost per unit value:

TC = 100C + 375G

Rearranging the equation to solve for G

G = (TC - 100C) / 375

Now we can plot the isocost curve with the reduced gas price.

(d) Coal price rises by 20%

If the coal price rises by 20%, the new cost per unit of coal (Coal_new) becomes 1.2 × 100 = 120.

We can use the original isocost equation, but with the new cost per unit value:

TC = 120C + 500G

Rearranging the equation to solve for G:

G = (TC - 120C) / 500

Now we can plot the isocost curve with the increased coal price.

By plotting these isocost curves on a graph with G on the y-axis and C on the x-axis, we can visualize the different combinations of gas and coal that can be purchased at the given expenditures or price changes.

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Explanation:

formation of compounds because the electric forces compel the atoms to attract each other and formed bonds which leads to the formation of chemical compounds. The attractive or repulsive interaction between any two charged bodies is known as an electric force so the attraction between two opposite charged atoms causes the formation of compounds so we can conclude that electric forces are important for the formation of compounds.

The magnetic field inside the solenoid is 0.0001454 T.

Use the formula for the magnetic field inside a solenoid:

B = μ₀ (NI) / L

Where:

B is the magnetic field,

μ₀ is the permeability of free space (4π × 10⁻⁷ T·m/A),

N is the number of turns of wire,

I is the current flowing through the wire, and

L is the length of the solenoid.

Given:

Length of the solenoid (L) = 28.0 cm = 0.28 m

Cross-sectional area of the solenoid (A) = 0.590 cm² = 0.590 × 10⁻⁴ m²

Number of turns of wire (N) = 405

Current flowing through the wire (I) = 80.0 A

Substituting the given values into the formulae:

B = (4π × 10⁻⁷ T·m/A)  (405 turns × 80.0 A) / 0.28 m

B = (4π × 10⁻⁷ T·m/A)  (32,400 turns·A) / 0.28 m

B = 4π × 10⁻⁷ × 32,400 / 0.28 T

B = 4π × 10⁻⁷ × 116,142.857 T

B = 1.454 × 10⁻⁴ T

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Speed of light relative to the boys = 300,000,000 m/s

Speed of light relative to a stationary observer on the side of the road =

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Answer:

first answers are 25 & 35, second answers are both 300,000,000

Explanation:

Answer:

The pressure of the air molecules inside the pen cap increases and the volume occupied by the air decreases such that the combined volume occupied by the pen cap and the air volume reduces while the combined mass of the pen cap and the air molecules remain the same

Given that density = The mass/Volume, we have that the density varies inversely as the volume, and as the volume reduces, the density increases

Upon squeezing, therefore, as the new combined density of the pen cap and the air molecules rises to more than the density of the water in the bottle, then, the pen cap air molecule is relatively more denser than the water, which will result in the pen cap sinking to the bottom of the bottle

Explanation:

The most common preserving fluid used is formaldehyde, which can crosslink the protein molecules and cause them to become more rigid. This can lead to changes in the shape of the lens, which can ultimately affect its clarity.

The preserving fluid used in the lab can have various effects on the structure of the lens. Additionally, preserving fluid can also cause the lens to become dehydrated, which can lead to shrinkage and distortion of the lens structure. Ultimately, the effect of the preserving fluid on the lens structure and clarity will depend on the specific type and concentration of the preserving fluid used, as well as the duration of exposure.

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Answer:

mass is not eager to be accelerated or in this case slowed down.

Explanation:

In general, Newton's 1st law states that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force.

What this means is that a mass is not eager to be accelerated or in this case slowed down. It will require an external force (muscle power) to get the mass of a running man to slow down. It is not instant also, because it takes time to slow down.

EXTRA

Supose the running man would try to stop instantly by purposely running against a brick wall. Even in that case, there is a small amount of time needed ( a fraction of a second perhaps) in which the moving mass of the man is forced to stop moving. That force is usually so huge, that it will injure someone in case of a crash, which might result even in death!

The purpose of an airbag or wearing a helmet, is to extend the time during a crash, FROM 0 to close to zero.

The layer of foam inside a helmet, protects the head in case of a crash, because it takes an amount of time for the head to squash the foam inside the helmet because the mass needs to be stopped ALMOST instantly. That difference between zero seconds and maybe 1 second, is sometimes enough to be able to survive a crash.

Answer:

yes it is a reactant

Because the image of the item is created in front of the retina rather than on the retina itself, a nearsighted person cannot see distant objects clearly.

When light from a faraway object enters the eye lens and converges at a point in front of the retina, it is called myopia, also known as nearsightedness.

Through the use of ciliary muscles, the lens is able to change its fixed ability to shift the focus length. To adjust the eye's focal length, ciliary muscles cannot be contracted any further than a certain point.

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