yo help please i’ll give u a brainliest

Answer:

Resistance = 400000 Ohms

Explanation:

Given the following data;

Voltage = 1200 V

Current = 3 mA = 3/1000 = 0.003 A

To find the resistance;

Voltage = current * resistance

Resistance = 1200/0.003

Resistance = 400000 Ohms

Answer:

about 8 kpc

Explanation:

Answer:

This rapid growth increase was mainly caused by a decreasing death rate (more rapidly than birth rate), and particularly an increase in average human age. By 2000 the population counted 6 billion heads, however, population growth (doubling time) started to decline after 1965 because of decreasing birth rates.

Explanation:

The main cause of human population growth is increased well-being.

Well-being is a term to refer to the state of satisfaction of economic, social, labor, psychological, biological needs, among others of the human.

Therefore, when civilizations and societies became more complex, many issues such as health, food, hygiene, education, government, among others, improved, giving more well-being to their inhabitants.

Well-being has evolved with society and today people have access to many things, services, and goods that give them well-being, improving their quality and life expectancy. Therefore, the correct answer is well-being.

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Answer:

12 metre

Explanation:

Wavelength = Velocity / Frequency

Wavelength = 300m/s / 25 Hz

Wavelength = 12 metre

Answer:

1. Static Friction

2. Sliding friction

3. Fluid friction

4. is rolling friction

Sorry if i am wrong

Explanation:

Answer:

2.00 (right on acellus)

Explanation:

doubling the distance between two charges makes F (8.00) quarter, so you would just do 8.00*1/4

Answer:

* if the two plates have the same charge sign       F_net = 0

*if one plate is positive and the other is negative   F_net = 59.4 N

Explanation:

The electric field created by a parallel plate is

           E = [tex]\frac { \sigma }{2 \epsilon_o }[/tex]

where sigma is the charge density

          σ = Q / A

we substitute

           E = [tex]\frac{Q}{A \ 2 \epsilon_o }[/tex]

           E = [tex]\frac{ 5.83 \ 10^{-8} }{7.34 \ 10^{-4}\ 2 \ 8.5 \ 10^{-12} }[/tex]

           E = 4.487 10⁶ N / C

the electric force is

          F = E / q

in this force it is a vector, so if the charges are of the same sign they repel and if they are of the opposite sign they attract. In this case, the test load is between the two plates that have the same load sign, so the forces are in the opposite direction.

* if the two plates have the same charge sign

          F_net = F₁ - F₂

          F_net = q (E₁ -E₂)

since the electric field does not depend on the distance

           E₁ = E₂

in consecuense  

           F_net = 0

In a more interesting case

*if one plate is positive and the other is negative

           F_net = F₁ + F₂

           F_net = q (E₁ + E₂) = 2 q E₁

           F_net = 2 6.62 10⁻⁶  4.487 10⁶

           F_net = 59.4 N

net force goes from positive to negative plate

Answer:

59.4 N

Explanation:

acellus

Answer:

The force will be cut in half also so the new force will be 18 N (d).

On 11 November a fire started in the Ravensbourne area near Toowoomba, which burnt through over 20,000 hectares (49,000 acres) of bush across several days, destroying six houses.

Answer:

Final velocity of ball = 20 m/s

Explanation:

Given:

Height when ball released = 20meter

Find;

Time taken to fall

Final velocity of ball

Computation:

Initial velocity of ball = 0 m/s

Acceleration due to gravity = 10 m/s²

Using equation of motion;

S = ut + (1/2)(g)(t²)

20 = (0)(t) + (1/2)(10)(t²)

20 = 5(t²)

(t²) = 20 / 5

(t²) = 4

Time taken to fall = 2 second

V = u + at

V = 0 + (10)(2)

Final velocity of ball = 20 m/s

Answer: 3.3 x 10^-28 J

Explanation: just answered on a quiz!! :)

Answer:

Systemic racism

Explanation:

Answer:

What I know, want to know, and have learned

Explanation:

I know

1. You have to have a golf ball

2. You have to have a golf club

3. Its nice to have a golf cart

Want to know:

1. Where can I play

2. How to play

3. Is it a common sport

Have learned:

1. Golf is hard

2. Top golf is a nice place to golf

3. The goal is to make the ball into the hole

The edge effect in habitats is caused by habitat fragmentation. Therefore, option A is correct.

Habitat fragmentation refers to the process by which large, continuous habitats are divided into smaller, isolated fragments due to human activities or natural events. It occurs when natural landscapes are altered or disrupted. It results in the fragmentation of once-continuous habitats into smaller patches.

This fragmentation can happen through various means, such as the construction of roads, urban development, agriculture, deforestation, or natural events like wildfires or floods.

Learn more about habitat fragmentation, here:

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Answer:

the index of refraction of the coating is 1.33  

Explanation:

Given the data in the question;

refraction index of  interior portion of the rod η[tex]_{interior[/tex] = 1.55

angle of incidence θ[tex]_i[/tex] = 59.5°

From Snell's law, we know that;

η[tex]_{interior[/tex] × sinθ[tex]_i[/tex]  = η[tex]_{coating[/tex] × sinθ[tex]_r[/tex]

where η[tex]_{interior[/tex]  is the index of refraction of the rod ( material 1 )

θ[tex]_i[/tex]  is the angle of incidence

η[tex]_{coating[/tex] is the index of refraction in outer coating ( material 2 )

θ[tex]_r[/tex] is the angle of refraction

so we substitute our values into the equation;

η[tex]_{interior[/tex] × sinθ[tex]_i[/tex]  = η[tex]_{coating[/tex] × sinθ[tex]_r[/tex]

1.55 × sin( 59.5° )  = η[tex]_{coating[/tex] × sin( 90° )

1.55 × 0.861629  = η[tex]_{coating[/tex] × 1

1.3355 = η[tex]_{coating[/tex] × 1

η[tex]_{coating[/tex] = 1.33   { 2 decimal places }

Therefore, the index of refraction of the coating is 1.33  

Answer:

Es la energía cinética interna total de un objeto debido al movimiento aleatorio de sus ... a es la energía que posee un objeto o cuerpo en virtud del movimiento de sus ... Si el movimiento de estas moléculas y átomos es más rápido, se dice que el ... Por lo tanto, la energía térmica asociada con la conducción resulta de la .

Explanation:

Answer:

All nuclear power plants use nuclear fission, and most nuclear power plants use uranium atoms. During nuclear fission, a neutron collides with a uranium atom and splits it, releasing a large amount of energy in the form of heat and radiation. More neutrons are also released when a uranium atom splits.

Answer: [tex]83.65\times 10^{-27}\ kg.m/s[/tex]

Explanation:

Given

The velocities of the protons are 400 m/s and 450 m/s

Mass of the Proton is [tex]m=1.673\times 10^{-27}\ kg[/tex]

Since they travel in the opposite direction, therefore, their momentum cancels out each other.

Momentum is the product of mass and velocity

[tex]\therefore m(450-400)\\\Rightarrow 1.673\times 10^{-27}\times 50\\\Rightarrow 83.65\times 10^{-27}\ kg.m/s[/tex]

The direction of momentum is in the direction of proton having 450 m/s velocity.

Answer:

Explanation:

The x-component is found in the magnitude of the vector times the cosine of the angle.

[tex]A_x=14.4cos133[/tex] and, to 3 sig dig,

[tex]A_x=-9.82m[/tex]

Explanation:

friction always acts in the opposite direction as motion.

Answer:

Explanation:

Potential energy is the energy stored within an object, due to the object's position, arrangement or state

Answer:

240joules

Explanation:

P:E = MGH

mass 12kg

g is constant as 10m/s²

h is 2m

therefore, 12*10*2 =240joules

Answer:

So let's first start with the base which is a rectangle remember that the formula to solve the area

Explanation:

Answer:

 W = 9.93 10² N

Explanation:

To solve this exercise we must use the concept of density

           ρ = m / V

the tabulated density of copper is rho = 8966 kg / m³

let's find the volume of the cylindrical tube

           V = A L

           V = π (R_ext  ² - R_int ²) L

let's calculate

          V = π (4² - 2²) 10⁻⁴  3

          V = 1.13 10⁻²  m³

         m = ρ V

        m = 8966 1.13 10⁻²

        m = 1.01 10² kg

the weight of the tube

        W = mg

         W = 1.01 10² 9.8

         W = 9.93 10² N

Answer:

A composite wave

Answer:

surface waves

Explanation:

Answer:

c i hope this helps

Explanation: