I WILL MARK BRAINLIEST!!ASAP!!! Wet Lab - Coulomb's Law lab from edge!!

Answers

Answer 1

Answer:

h

Explanation:

Coulomb's law, or Coulomb's inverse-square law, is an experimental law[1] of physics that quantifies the amount of force between two stationary, electrically charged particles. The electric force between charged bodies at rest is conventionally called electrostatic force or Coulomb force.[2] The law was first discovered in 1785 by French physicist Charles-Augustin de Coulomb, hence the name. Coulomb's law was essential to the development of the theory of electromagnetism, maybe even its starting point,[1] as it made it possible to discuss the quantity of electric charge in a meaningful way.[3]

The law states that the magnitude of the electrostatic force of attraction or repulsion between two point charges is directly proportional to the product of the magnitudes of charges and inversely proportional to the square of the distance between them,[4]

{\displaystyle F=k_{\text{e}}{\frac {q_{1}q_{2}}{r^{2}}}}{\displaystyle F=k_{\text{e}}{\frac {q_{1}q_{2}}{r^{2}}}}

Here, ke is Coulomb's constant (ke ≈ 8.988×109 N⋅m2⋅C−2),[1] q1 and q2 are the signed magnitudes of the charges, and the scalar r is the distance between the charges.

The force is along the straight line joining the two charges. If the charges have the same sign, the electrostatic force between them is repulsive; if they have different signs, the force between them is attractive.

Being an inverse-square law, the law is analogous to Isaac Newton's inverse-square law of universal gravitation, but gravitational forces are always attractive, while electrostatic forces can be attractive or repulsive.[2] Coulomb's law can be used to derive Gauss's law, and vice versa. In the case of a single stationary point charge, the two laws are equivalent, expressing the same physical law in different ways.[5] The law has been tested extensively, and observations have upheld the law on the scale from 10−16 m to 108 m.[5]


Related Questions

What do scientists use to measure force?

Answers

Answer:

force meter

Explanation:

Answer:

Wrong, the correct answer is "newton"

Explanation:

1 Newton = 1 kilogram-meter per second2

An astronaut is working outside the International Space Station where the atmospheric pressure is essentially zero. The pressure gauge on her air tank reads 690000 Pa. What force does the air inside the tank exert on the flat end of the cylindrical tank, a disk 0.150 m in diameter?

Answers

Answer:

Explanation:

Pressure = Force/Area

Given

Pressure = 690,000Pa

Area will be the area of the circular section of the cylindrical tank

Area of a circle =πd²/4

Area of a circle =π(0.15)²/4

Area of a circle = 3.14(0.0225)/4

Area of a circle = 0.07065/4

Area of a circle = 0.0176625m²

Get the force

Force = Pressure * Area

Force = 690,000* 0.0176625

Force = 12,187.125N

Hence the force applied by the air inside the tank is 12,187.125N

You run
completely around a 400m track in
100s. What was your average velocity?

Answers

Answer:

About 410

Explanation:

Answer:

4 m/s

Explanation:

Divide 400 m by 100 s to get 4 m/s. It also equals about 8.95 mph, 8.94775 mph to be exact.

Question 3 of 10
Why do electric charges that move through a magnetic field produce an
electric current?
A. The magnetic field exerts a force on only the negative charges in
the wire.
B. The magnetic field exerts a force on only the positive charges in
the wire.
C. The magnetic field pushes negative charges and positive charges
in the same direction.
D. The magnetic field pushes negative charges and positive charges
in opposite directions.

Answers

Answer: D

Explanation: a p e x :)

Answer:

B. The magnetic field pushes negative charges and positive charges in opposite directions.

As a pendulum swings from its highest to its lowest position along an arc, what happens to its kinetic energy and potential energy?

Answers

At its highest position along the arc, the pendulum is at its lowest point of kinetic energy but its highest point of potential energy. As it swings to the lowest position, the potential energy is converted into kinetic energy, thus decreasing potential energy and increasing kinetic energy.

Hope this helped!

Two students are measuring the Gravitational Attraction between each other. One student weighs 120 kg. The other student weighs 108 kg. Calculate the gravitational pull they have on each other.

Answers

Answer:

[tex]F=8.64\times 10^{-9}\ N[/tex]

Explanation:

Given that,

Mass of student 1, m₁ = 120 kg

Mass of student 2, m₂ = 108 kg

Let they are at a distance of 10 m.

We need to find the gravitational pull they have on each other. The gravitational force acting between two objects is given by :

[tex]F=G\dfrac{m_1m_2}{r^2}\\\\F=6.67\times 10^{-11}\times \dfrac{120\times 108}{(10)^2}\\\\=8.64\times 10^{-9}\ N[/tex]

So, the gravitational pull between students is [tex]8.64\times 10^{-9}\ N[/tex].

define frequency in terms of a wave

Answers

Answer:

Explanation:

For a wave, the speed is the distance traveled by a given point on the wave (such as a crest) in a given period of time. So while wave frequency refers to the number of cycles occurring per second, wave speed refers to the meters traveled per second

1. If all four switches below are turned on, which light bulb will light up? (W is wood, S is silver, and Yis yarn.)
A.Circuit A
B. Circuit B
C. Circuit C
D. Circuit D

Answers

The answer to this question is d- circuit D

The correct option is option (c).

The bulb in the circuit C will glow up.

Complete circuit:

We know that for the light bulb to glow up, there must be finite current flowing in the circuit through the bulb.

But, for the current to flow in the circuit, first, the circuit must be complete.

As we can see in the figure provided in the question, circuit A is not complete, whereas circuit B, C, and D are complete. So from here we can reject the circuit A.

Now, the circuit B contains wood, circuit C contains silver and circuit D contains yarn. Only silver is an electrical conductor.

Therefore, circuit C is complete and current will flow through the bulb and it will glow up.

Learn more about electrical conductor:

https://brainly.com/question/14126616?referrer=searchResults

In sea-floor spreading, molten material rises from the mantle and erupts in the... ​

Answers

Answer:

along mid ocean ridges

Explanation:

In 1960, Harry Hess came up with the discovery that the floor of the oceans undergoes a movement. This movement is similar to that of being a conveyor belt. In this movement, continents are moved along with the oceans. The molten materials moves up to the mid-ocean ridge where it spreads and erupts. In this process the molten materials pushes the rocks sideways thereby emerging out from the mantel. The freezing of the molten material formed new rocks. This process is termed to be sea-floor spreading.

What happens to potential energy as the car goes up the hill?

Answers

The potential energy will increase
As a car goes up a hill, gravitational potential energy increases and kinetic energy decreases. I hope this helps!

characteristics of radiation from the sun's energy would be

A. heat from a distance source, elcetromagnatic waves and energy that travels through space.
B. Direct contact of the energy source of sufaces
C. Movement of heat through fluids
WHICH ONE IS THE ANSWER HELPPP

Answers

Answer:

Answer is A

Explanation:

pls help me with this question pls

Answers

Explanation:

pls help me with this question pls

En un año se otorgará uno de tres premios (a la investigación, la enseñanza y el servicio) a algunos de los estudiantes, de un grupo de 25, de posgrado del departamento de estadística. Si cada estudiante puede recibir un premio como máximo, ¿cuántas selecciones posibles habría?

Answers

Answer:

Habría 13,800 selecciones posibles.

Explanation:

Permutar es colocar elementos en distintas posiciones.

Se llama permutación de m elementos a cada una de las diferentes ordenaciones  que se pueden hacer con esos elementos. En otras palabras, se llama permutaciones de  m elementos en n posiciones a las distintas formas en que se pueden ordenar los m elementos ocupando únicamente las n  posiciones.

En el caso de la permutación no se repiten los elementos, ya que de repetirse o ser iguales entre si, al intercambiarlos no se genera una nueva permutación.

El número de permutaciones de n elementos elegidos k a la vez es calculado como:

[tex]P=\frac{n!}{(n-k)!}[/tex]

Como los premios son distinguibles, la permutación es usada en este caso, donde n=25 y k=3

Entonces:

[tex]P=\frac{25!}{(25-3)!}[/tex]

Resolviendo:

[tex]P=\frac{25!}{(22)!}[/tex]

Recordando que el factorial es una operación matemática que indica que se deben multiplicar todos los números enteros y positivos que hay entre el número al cual deseas calcular el factorial y el número 1, entonces se obtiene:

P= 13,800

Habría 13,800 selecciones posibles.

La selección de los alumnos se puede realizar de 2300 formas.

Teniendo en cuenta eso, tenemos 25 estudiantes graduados para ser seleccionados para tres tipos diferentes de premios, como pabellones de investigación, docencia y servicio.

Ahora;

25C3 = 25! / 3! (25 - 3)!

25C3 = 25! / 3! 22!

25C3 = 2300

La selección de los alumnos se puede realizar de 2300 formas.

Más información: https://brainly.com/question/13387529

True or false. Atoms of a given element will have the same mass.

Answers

Answer:

True

Explanation:

Atoms of the same element will always have the same atomic mass or the mass listed in the periodic table.

Work out the current through an electric kettle with a power of 2.2 kW if it uses the 180 V mains supply. Round your answer to 2 significant figures.



Answers

Answer:

12 A

Explanation:

Given,

Power of electric kettle=2.2 kW=2200W (since 1kW=1000W)

Voltage=180V

Current=?

Power = Voltage*Current

Current = Power ÷ Voltage

=2200W ÷ 180V

=12.22 Ampere

=12 A

The amount of current moving through the electric kettle with the given power and voltage is 12A.

Given the data in the question;

Power; [tex]p = 2.2kW = 2200W[/tex]Voltage; [tex]V = 180V[/tex]

Using the the power law equation:

Electrical power is the product of voltage and current:

[tex]P = V * I[/tex]

Where V is voltage and I is current

We substitute our given values into the equation

[tex]2200W = 180V * I\\\\I = \frac{2200W}{180V} \\\\I = 12.22A\\\\I =12A[/tex]

Therefore, the amount of current moving through the electric kettle with the given power and voltage is 12A.

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To get to the kitchen from her bedroom, Maria walks 3 m north and then 4
m east. What is the total distance and displacement of Maria? *

Answers

Distance = 3+4 = 7m
Displacement = Use Pythagoras theorem to get, square root 3^2 + square root 4^2 = 3 + 2 = 5 meters

Choose the best real world exzample of convection:
A. clouds forming in the atmosphere
B. touching a warm cooking pot handle
C. sitting in front of a warm fireplace

WHICH ONE IS THE ANSWER HELP PLESEEE

Answers

The correct answer is A
I think that it is B. I’m not completely sure. I hope that I helped

A bee is flying in your garden. There are Unbalanced forces act on the bee. List 3 things that can happen to the bee’s motion.

Answers

ECfwars4deayuesd84e55skESRYA2df623ecvp7A748

5A67dgphitrs5szxsz  

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tdcluuuuuuu

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The Bee’s Motion could speed up, slow down, or stop completely. It can also move in different directions such vertically, horizontally, or diagonally, because of the unbalanced forces. *Hope this helped!!

carbon has six protons. which model shows a neutral atom of carbon?

Answers

Answer:

It should have 6 electrons to be a neutral carbon atom

25 POINTS!
A 60 kg man is moving at 2 m/s. What is his kinetic energy?
A. 60 J
B. 240 J
C. 30 J
D. 120 J

Answers

answer : d, 120 j :)

Use the term chemical change in a complete sentence

Answers

Answer:

A paper being burned is a chemical change.

Which part of a DC generator keeps the electric current flowing in only one
direction?
A. The permanent magnets
B. The commutator
o
C. The power source
D. The wire coil

Answers

it’s the commutator

A 3.90 kg block is in equilibrium on an incline of 31.0◦. The acceleration of gravity is 9.81 m/s2 . What is Fn of the incline on the block? Answer in units of N.

Answers

Answer:

Explanation:

The sum of the pore along the plane is expressed according to Newton's law

Fn-Ff = ma

Fn is the moving force

Ff = nR = frictional force

m is the Mass

a is the acceleration

Substitute the given values

Fn - nR = ma

Fn - tan31°(mgcostheta) =3.9(9.8)

Fn - tan31(3.9(9.8)cos31) = 3.9(9.8)

Fn - tan31(38.22cos31)= 38.22

Fn - 32.76tan31 = 38.22

Fn-19.68 = 38.22

Fn = 38.22+19.68.

Fn = 57.90N

Hence Fn (moving force) of the inclined block is 57.90

You walk forward 105 meters, in 15 seconds. What is your overall velocity? I need help immediately please

Answers

Velocity = displacement/ time
105 meters/ 15 seconds = 7 m/s

PSYCHOLOGY QUESTION
Give a brief description of the factors involved in understanding the etiology of a disease
PLEASE NEED ANSWER ASAP

Answers

Answer:

Not sure what yours looking for but When a disease is widespread, epidemiological studies investigate what associated factors, such as location, swx, exposure to chemicals and many others, make a population more or less likely to have an illness, condition, or disease thus helping determine its etiology.

Answer:

Some anxiety disorders have different symptoms and it is important to figure out how those symptoms develop. Symptoms may develop from physiological, psychological, or environmental influences. Physiological factors may include heredity, chemical and hormonal imbalances, gender (females are more prone to anxiety than males), and anxiety sensitivity, which has to do with how one’s body reacts to chemical changes. Psychological influences focus on how one’s mind reacts to fearful situations. Environmental factors also influence how individuals deal with fearful situations.  Environmental stress levels, how we think or interpret situations, and our observations of how others react to similar situations all impact how we manage anxiety.

Explanation:

What is the net force on a bathroom scale when a 110 pound person stands on it? How do you know?

Answers

The scale is a rest scale reads the support for is not enough net force.

1 Una pelota rueda hacia la derecha siguiendo una trayectoria en línea recta de modo que recorre una distancia de 10 m en 5 s. Calcular la velocidad y la rapidez.

Answers

Answer:

Entonces la velocidad es 2 [tex]\frac{m}{s}[/tex] hacia la derecha, mientras que la rapidez es 2 [tex]\frac{m}{s}[/tex].

Explanation:

La rapidez es una magnitud escalar que relaciona la distancia recorrida con el tiempo mientras que la velocidad es una magnitud vectorial que relaciona el cambio de posición (o desplazamiento) con el tiempo.

Es decir, la rapidez es una magnitud física que expresa el valor numérico y la unidad de una distancia en relación con el tiempo.

Matemáticamente,  es expresada como el cociente entre el camino recorrido y el tiempo transcurrido:

[tex]rapidez=\frac{distancia}{tiempo}[/tex]

Por otro lado, la velocidad expresa cómo se está moviendo un objeto en cada momento, informando la dirección, el sentido y la rapidez del movimiento (la velocidad se refiere al intervalo de tiempo que le toma a un objeto desplazarse hacia una dirección determinada y, al involucrar la dirección o sentido del movimiento, es una magnitud vectorial).

Matemáticamente, la velocidad es calculada como el cociente entre el desplazamiento que realizó un cuerpo  y el tiempo total  que le llevó realizarlo.

[tex]velocidad=\frac{desplazamiento}{tiempo}[/tex]

En este caso, sabes que:

distancia= desplazamiento= 10 mtiempo= 5 s

Reemplazando obtenes que la aceleración es:

[tex]rapidez=\frac{10m}{5 s}[/tex]

rapidez= 2 [tex]\frac{m}{s}[/tex]

y la velocidad es:

[tex]velocidad=\frac{10m}{5s}[/tex]

velocidad= 2 [tex]\frac{m}{s}[/tex] hacia la derecha.

Entonces la velocidad es 2 [tex]\frac{m}{s}[/tex] hacia la derecha, mientras que la rapidez es 2 [tex]\frac{m}{s}[/tex].

Pls answer both asap

Answers

Answer:

Problem 1 is D

Problem 2 is C

See the comments.

Explanation:

How does the observed pitch of the buzzer change as it moves
observer?
pitch of the buzzer increased (higher tone) as it moves towards the observer
The pitch of the buzzer decreased (lower tone) as it moves towards the observer
The pitch of the buzzer stayed the same no matter where it was in relationship
to the observer

Answers

The answer is

Pitch of the buzzer increased (higher tone) as it moves towards the observer

The correct option that explains the change in the observed pitch of the buzzer as it moves  towards the observer is;

A; pitch of the buzzer increased (higher tone) as it moves towards the observer

This is based on the concept of doppler effect which is defined as the change in frequency/pitch of a sound that is heard by an observer due to the fact that the sound source and the observer have different velocities with respect to the medium  through the sound travels.

Now, according to doppler effect, when the source of the sound moves towards the observer, the frequency will increase due to the fact that the time between successive sound waves is shortened. Thus, this means that the pitch will be higher.

However, when the sound source moves away from the observer, the frequency would decrease due to the fact that the time between successive sound waves or the crest is now longer. Thus, the pitch will decrease.

In conclusion, the pitch of the buzzer will increase as it moves towards the observer.

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________ is the speed and direction of an object

Answers

Answer:

velocity

Explanation:

plz mark brainliestʕ•ᴥ•ʔ

Velocity is the answer
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