if the water in a lake is everywhere at rest, what is the pressure as a function of the distance from the surface?

A metal ball is hanging from the ceiling through an insulating thread. This ball is attracted to a positively charged rod that is held near the ball and thus the charge of the ball must be Negative or Neutral.

Whether any object is made up of conductive or nonconductive material, it affects how it behaves once it has been charged.

Electrons can move freely between particles when they are in conductors, which are substances. Charge can be transported across the whole surface of an object constructed of a conducting substance.

Charge is swiftly dispersed all across the full surface of the object if it is applied to it at a specific point. The motion of the electrons causes the distribution of charge.

A charged conductor can even transfer its charge to any another object if it comes into contact with that other object. When one object is constructed of a conducting substance, the charge can be transferred from one object to another more easily.

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The astronomers introduced the most widely accepted hypothesis regarding the origin of the solar system is Immanuel Kant in 1755.

Newton's equations of gravity and rotatory motion served as the foundation for most of Kant's theories. He believed that primaeval matter, which he believed to have been generated supernaturally, was dispersed throughout the cosmos. Small, chilly, hard particles made up this substance.

Due to the gravitational pull of one another, these particles were drawn to one another.

In his 1755  "The Universal Natural History and Views of the Heavens," Kant discusses astronomy as well as two significant cosmological theories. The first is his "Nebular Hypothesis" on the formation of stars and planets, in which he proposed that faint, thin clouds of dust and gas far out in space would collapse in on themselves under the influence of gravity, forcing them to spin to form a disc. The development of stars and planets from this rotating disc would account for the rotation of Earth and the other planets.

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Answer:

400 MHz

Explanation:

voodoo$ knows all

The formula for calculating resistance is Volts / Current (option C). Details about resistance can be found below.

Resistance is a force that tends to oppose motion. It is measured in a unit called ohms (Ω).

The electrical resistance of a circuit component or device is the ratio of the voltage applied to the electric current which flows through it.

The resistance of an object can be calculated by dividing the voltage (V) by its current (I) as follows:

R = V/I

Therefore, the formula for calculating resistance is Volts / Current.

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Electric power steering system  are more compact than the hydraulic  pumps , both statement are wrong.

Since electro-hydraulic and electric power steering systems are lighter and more compact than conventional hydraulic power steering systems.The hydraulic power steering system is basically a closed loop system that uses pressurized hydraulic fluids for changing the wheel angle of the front wheels based on the steering angle. It consists of a hydraulic pump driven by  valves, belt, reservoir, cylinder, and a driver control mechanism, whereas Electric power steering is for highly automated  driving, it  has an electric motor that controls the vehicle  and provides enjoying  and  optimal steering feel, and electro-hydraulic power steering is  where an electric motor  drives the pump which  is controlled according to the needed assisting steering force, the delivery of the hydraulic pump is increase at very low  speed in order give a large amount of steering power.

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Chemically similar particles are those whose electrical surroundings are the same. If two protons can switch places by rotating or reflecting one another, they are chemically identical.

Protons that are chemically equivalent only generate one signal.

All three Ha protons and all three Hb protons are chemically equal to one another, according to NMR nomenclature. However, the Ha protons and the Hb protons are not chemically similar.

The resonance frequency of the Ha protons differs from that of the Hb protons as a result.

A molecule with equivalent protons emits a single signal. The corresponding protons of ethane are four in ethylene, two in acetylene, and six in benzene.

A molecule, each of which results in an absorption and the absorptions are widely separated in the spectrum are called nonequivalent proton.

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It is because water has a higher heat capacity as compared to the heat capacity of oil.

The amount of heat that must be applied to an object in order to cause a unit change in temperature is known as the heat capacity or thermal capacity of that object. Heat capacity is measured in joules per kelvin (J/K), the SI unit.

Heat capacity is an example of extensive property. A physical quantity which is an extensive property has a value that is proportional to the size of the system it describes or the amount of matter present in the system. C stands for the heat capacity of an object.

Because water has a higher specific capacity than oil and must expend more energy to cool down, it does so more slowly when two equal masses of hot water and oil are allowed to cool.

Therefore, When the equal mass of hot water and oil at the same temperature is allowed to cool water cools slower than the oil.

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The gravitational force is 3.54 x 10²⁰ N

We need to know about gravitational force to solve this problem. The gravitational force is the force caused by two masses objects. The magnitude of gravitational force can be determined as

F = G.m1.m2 / R²

where F is the gravitational force, G is the gravitational constant (6.674 × 10¯¹¹ Nm²/kg²), m1 and m2 are the mass of the object and R is the radius.

From the question above, we know that

m1 = 5.972 x 10²⁴ kg

m2 = 1.989 x 10³⁰ kg

R = 1.496 x 10¹² m

By substituting the following parameters, we get

F = G.m1.m2 / R²

F = 6.674 × 10¯¹¹  . 5.972 x 10²⁴ . 1.989 x 10³⁰ / (1.496 x 10¹²)²

F = 3.54 x 10²⁰ N

Hence, the gravitational force is 3.54 x 10²⁰ N

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Answer: 4.8 seconds

Explanation:

d=r*t

6.5=1.25*t

6.5/1.25= 4.8

Hope this helps! :)

When An electromagnetic wave with frequency f = 10 mhz is propagating in a material with parameters h = 3 h0, p = p0 (h0 = 8.85 x 10-12 f/m; p0 = 1.257 x 10-6 h/m), and v = 10-7 s/m. Then wavelength of electromagnetic wave is 410 nm.

When a magnetic field and an electric field interact, electromagnetic waves are created. An electromagnetic wave has an electric field and a magnetic field that are perpendicular to one another.

The parts of the electromagnetic spectrum are designated as follows, from highest to lowest energy: gamma rays, X-rays, ultraviolet radiation, visible light, infrared radiation, and radio waves. The radio wave region of the electromagnetic spectrum includes microwaves (such as those found in microwave ovens).

An electromagnetic wave first encounters the atoms of a physical substance, which absorb the radiation. Vibrations. The electrons inside of this atom begin vibrating as a result of the absorption of this electromagnetic energy.

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The centripetal acceleration of the object will be 2 m/s^2.

An object moving in a circular motion has a centripetal force(F)

F = mv^2/R

Its centripetal acceleration is given by the following equation,

ma = mv^2/R

a = v^2/R

We know that in the case of circular motion, v = wr

Here, W is the angular frequency which is equal to 2pi/Time Period(T).

Hence its centripetal acceleration is

a = w^2(R)

Putting w = 2pi/T= 2pi/6.28 and R= 2 meters in the above equation

a = (2pi/6.28)(2)

a = 2 m/s^2.

Hence, the centripetal acceleration of the object will be 2 m/s^2.

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The centripetal acceleration of the object will be 2 m/s^2.

An object moving in a circular motion has a centripetal force(F)

F = mv^2/R

Its centripetal acceleration is given by the following equation,

ma = mv^2/R

a = v^2/R

We know that in the case of circular motion, v = wr

Here, W is the angular frequency which is equal to 2pi/Time Period(T).

Hence its centripetal acceleration is

a = w^2(R)

Putting w = 2pi/T= 2pi/6.28 and R= 2 meters in the above equation

a = (2pi/6.28)(2)

a = 2 m/s^2.

Hence, the centripetal acceleration of the object will be 2 m/s^2.

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[tex]4.80 \times 10^3 \text { seconds }[/tex]  long does it take to boil away 2.40 kg of the liquid.

Boiling point of He is [tex]$T=4.2 \mathrm{k}$[/tex]

Latent heat of vapourization [tex]$L=2.00 \times 10^4 \mathrm{~J} / \mathrm{kg}$[/tex]

Power of electrical heater [tex]$P=30 \mathrm{w}$[/tex]

mass of liquid is [tex]$m=2.40 \mathrm{~kg}$[/tex]

amount of heat required to boil

[tex]$$\begin{aligned}&Q=m L \\&Q=2.40 \times 2 \times 10^4 \mathrm{~J} \\&Q=4.80 \times 10^4 \mathrm{~J}\end{aligned}$$[/tex]

Power [tex]$p=\frac{\text { work }}{\text { time }}=\frac{\text { Energy }}{\text { Time }}$[/tex]

[tex]$$\begin{aligned}P &=\frac{Q}{t} \\\text { tine } t &=\frac{Q}{P}=\frac{4.80 \times 10^4 \mathrm{~J}}{10} \\t &=4.80 \times 10^3 \text { seconds }\end{aligned}$$[/tex]

The heat or energy that is absorbed or released during a substance's phase shift is known as latent heat. It could go from a solid to a liquid or from a liquid to a gas, or vice versa. Enthalpy, a characteristic of heat, is connected to latent heat.

The heat that is used or lost as matter melts and transitions from a solid to a fluid form at a constant temperature is known as the latent heat of fusion.

Due to the fact that during softening the heat energy anticipated to transform the substance from solid to fluid at air pressure is the latent heat of fusion and that the temperature remains constant during the process, the "enthalpy" of fusion is a latent heat. The enthalpy change of any quantity of material during dissolution is known as the latent heat of fusion.

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It takes our Solar system 230 million years to complete one orbit around the milky way galaxy; option E.

The solar system refers to the system of the Sun and the planets that orbit it.

The Sun is the star of our solar system. The planets in our system include:

Our solar system is a part of the Milky Way Galaxy.

It takes about 230 million years for our Solar system to complete one orbit around the Milky Way Galaxy.

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The depth of oil, specific gravity of 0.750, will produce a pressure of 26 psig is =92.3 ft

PSIG refers to pounds per square inch Gauge (S.G.) oil = 0.750

P(ress )=30 psig = 30lb/in²

density of water ρ(w)= 62.4 pound/ft³

=62.4/(12)³  lb/in³

=0.03611  lb/in³

p(ress)=ρ H

30=(s.g) xρ H

30 = 0.750X 62.4/(12)³   H

H = 30x (12)3/0.750 x 62.4

H = 1107.69 in.

=92.3 ft

Relative gravity is another name for specific gravity. Since it lacks any dimensions, it must be a dimensionless quantity. The ratio of a substance's density to that of water at a specific temperature can be used to characterize it. It is significant to remember that temperature is a key factor in influencing any substance's specific gravity. As a result, a substance's specific gravity is a quality that depends on its temperature. Additionally, every substance's specific gravity is impacted by pressure.

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Answer:

24 hrs

Explanation:

12 hrs =25 g

24hrs = 50g

The total distance traveled will be 18 miles because distance and displacement are different.

While distance and displacement appear to have the same meaning, they actually have very different definitions and implications. Displacement is the measurement of "how far an object is out of place," whereas distance refers to "how much ground an object has covered during its motion."

Distance is the sum of an object's movements, regardless of direction. The distance can be defined as the amount of space an object has covered, regardless of its starting or ending position.

Δd = d1 + d2 + d3.....

The term "displacement" refers to a shift in an object's position. It is a vector quantity with a magnitude and direction. The symbol for it is an arrow pointing from the initial location to the ending place.

Displacement = Final position - Initial position

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The electric field that cause the bead to hang suspended in the air is calculated as E = -612292.045 N/C

To find the electric field, the given values are:

Mass = 0.1g

Charged excess electrons = 1×10¹⁰

The Electric field can be defined as the ratio of the electric force per unit charge.

So, the working equation for this is,

E = F/Q,

where E is the strength of electric field, F is the force and Q is the charge.

The force is equal to:

F = mg = (0.1/1000 kg)(9.81 m/s²) = 0.981 ×10⁻³ N

The charge of the excess electrons is equal to:

Q = (-1.6021766208×10⁻¹⁹ C/electron)(1×10¹⁰ electrons)

Q = -1.6021766208×10⁻⁹ C

E = 0.981 ×10⁻³ N/-1.6021766208×10⁻⁹ C

E = -612292.045 N/C

Thus, the electric field that cause the bead to hang suspended in the air is calculated as E = -612292.045 N/C

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Answer: LOL Hello! for the third time! the answer is Inverse distance weighting (IDW) is a type of deterministic method for multivariate interpolation with a known scattered set of points. The assigned values to unknown points are calculated with a weighted average of the values available at the known points.

Explanation: ^^ Up there have a good day and hope this helps you!

Question: Hello: ) ✨What is Inverse Distance Weighting?​

Answer: a method of interpolation that estimates cell values by averaging the values of sample data points in the neighborhood of each processing cell. The closer a point is to the center of the cell being estimated, the more influence, or weight, it has in the averaging process.Inverse Distance Weighting (IDW) interpolation estimates unknown values with specifying search distance, closest points, power setting & barriers.”

Hope this helps<3

Answer: D. Venus giving life to Pygmalion's statue

Explanation: Hi! I got it right on Edmentum. Hope this helps! <3

Explanation:

why do you think is important to study about that different forms of precolonial literature?

The surface area of the material in cm²/mg is 4250 cm²/mg

We'll begin by converting 425 m²/g to cm²/g. This can be obtained as follow:

1 m²/g = 10000 cm²/g

Therefore,

425 m²/g = (425 m²/g × 10000 cm²/g) / 1 m²/g

425 m²/g = 4250000 cm²/g

We can convert 4250000 cm²/g to cm²/mg as follow:

1000 cm²/g = 1 cm²/mg

Therefore,

4250000 cm²/g = (4250000 cm²/g × 1 cm²/mg) / 1000 cm²/g

4250000 cm²/g = 4250 cm²/mg

Thus, we can conclude that the surface area in cm²/mg is 4250 cm²/mg

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The ocular microscope magnification is 20x.

We need to know about microscope magnification to solve this problem. Microscope is a device utilized for seeing a small object. The microscope has two lenses which are objective and ocular. The total magnification of the microscope lens is

M = Moc x Mobj

where M is total magnification, Moc is ocular magnification and Mobj is objective magnification.

From the question above, we know that

M = 800x

Mobj = 40x

By substituting the following parameter, we get

M = Moc x Mobj

800 = Moc x 40

Moc = 800 / 40

Moc = 20x

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Chlorine has two naturally occurring isotopes, [tex]^{35}Cl[/tex] and [tex]^{37}Cl[/tex].

What is the mass number,  number of  protons, neutrons, and electrons are present in [tex]^{35}Cl[/tex]?

The mass number of [tex]^{35}Cl[/tex] is 35.

The number of protons present in [tex]^{35}Cl[/tex] is 17.

The number of neutrons present in [tex]^{35}Cl[/tex] is 18.

The number of electrons present in [tex]^{35}Cl[/tex] is 17.

What is the mass number,  number of  protons, neutrons, and electrons are present in [tex]^{37}Cl[/tex]?

The mass number of [tex]^{37}Cl[/tex] is 37.

The number of protons present in [tex]^{37}Cl[/tex] is 17.

The number of neutrons present in [tex]^{37}Cl[/tex] is 20.

The number of electrons present in [tex]^{37}Cl[/tex] is 17.

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The value of constant acceleration is 0.29m/s

Given that Haley is driving down a straight highway at 73 mph. A construction sign warns that the speed limit will drop to 55 mph in 0.50 mi.

we have to  find out constant acceleration (in ) that will bring Haley to this lower speed in the distance available

we know that,

1mile= 1.609km

1 km/h = 5/18m/s

Initial Speed of Haley(u)=  73mph=73×1.609×(5÷18) =32.63m/s

Final Speed of Haley(v)=  55 mph=55×1.609×(5÷18)=24.58m/s

The distance to be travelled  while lowering the speed(S)= 0.5mile=0.805km=805m

according to third equation of motion,v²-u²=2as

as speed is lowering down the acceleration will be in the opposite direction of motion, hence acceleration will be negative, equation will become u²-v²=2as

putting values,(32.63)²-(24.58)²=2a×805

a=(460.55÷1610)

a≅0.29m/s²

the constant acceleration  that will drop speed to  is 0.29m/s².

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The outside air temperature is 1° C.

Pressure is defined as the force applied to an object per unit area. It's represented by the symbol 'P'. The SI unit of pressure is Pascal (Pa).

The pressure altitude at which the aeroplane is flying = 33500 ft

The density altitude at which the aeroplane is flying = 3200 ft

The outside air temperature is,

[tex]T= \frac{ P}{ pR}[/tex]

The pressure altitude in Pascal is,

33500 ft = 23.800 Pa

The density of the altitude in Pascal is,

3200 ft = 1.225 Pa

[tex]Temperature = \frac{Pressure } {Density \times Gas \: constant }[/tex]

[tex]T= \frac{ P}{p \times R}[/tex]

[tex]T = \frac{23.800}{1.225 \times 287.05} [/tex]

T = 1° C.

Therefore, the outside air temperature is 1° C.

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Answer:

c. natural resources

Explanation:

mercantilism is an economic practice by which governments use their economies

if am ryt

Answer:

C. natural resources

Explanation:

Mercantilism is based on the concept of a nation's power being directly related to its wealth. A nation's goal under mercantilism was to obtain as much gold and silver as possible and to export more goods than it imported from other nations. Gold and Silver are natural resources.

By using the lowest resonant frequency, the wave speed is 389.084 m/s.

We need to know about the fundamental resonant frequency to solve this problem. When the string is vibrating at its lowest resonant frequency, it should follow the rule

λ = 2L

where λ is wavelength and L is length of string

From the question above, we know that

f = 922 Hz

L = 21.1 cm

By substituting to the following equation, we can calculate the wavelength

λ = 2L

λ = 2 . 21.1

λ = 42.2 cm

λ = 0.422 m

Find the speed of wave

v = λ . f

v = 0.422 . 922

v = 389.084 m/s

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Training increases our ability to produce greater quantities of physical activity such as maximal force over a short period more moderate levels of force over longer periods.

Performance in middle and long-distance running is governed by a number of significant aerobic and anaerobic factors.

In the literature, there has been a lot of discussion on how effective strength training (ST) is for distance runners.

However, no comprehensive assessment of the findings from these investigations of physical activity has been published so far.

Although there is very strong evidence that any kind of Strength training enhances RE, TT, and the sprint performance, this conclusion was not shared by all of the assessed research.

The differences in methodology that are emphasized may help to explain the inconsistencies in findings and should be taken into account in future research in this area.

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The velocity of the motorcycle after the first 120 m is 24.97 m/s and the total displacement of the motorcycle is 280 m.

The acceleration of the motorcycle starting from rest is 2.6 m/s².

The acceleration of the motorcycle after traveling a distance of 120 m id -1.5 m/s² and the velocity is 12 m/s.

The initial velocity of the motorcycle, u = 0 m/s

The acceleration of the motorcycle, a = 2.6 m/s²

Therefore, the final velocity of the motorcycle after d = 120m is:

v² - u² = 2as

v² = u² + 2as

v² = (0)² + 2 × 2.6 × 120

v² =  624

v = √624

v = 24.97 m/s

Now, the motorcycle slows down to -1.5 m/s² and a velocity of 12 m/s.

So, the initial velocity is u = √624 m/s and final velocity is v = - 12 m/s.

So,

v² - u² = 2as

( - 12)² - (√624)² = 2 × -1.5 × d

144 - 624 = - 3 × d

- 480 = - 3d

d = 480 / 3 = 160 m

Therefore, the total displacement of the motorcycle is 120 m + 160 m = 280 m.

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