What is an example of a chemical change

An open area between the two buildings is generally found behind the drawbridge of a castle.

A drawbridge is basically a long bridge made up of wood or sometime metal at the entrance of a castle or tower surrounded by a moat. It is basically for the leading to a gateway, capable of being raised or lowered to either restrict entry into the castle or allow someone in it, and often spanned a ditch or moat.

Depending on how big the castle is, when someone go over the drawbridge he or she can generally see an open area, between the buildings. And if we talk about the mechanism behind the drawbridge of the castle a typical arrangement would have the drawbridge immediately outside a gatehouse, consists of a wooden deck with single edge pivoting at the gatehouse threshold, so that in the heighted position the bridge would be flush against the gate, forming passage to entre.

Hence, an open area between the two buildings is generally found behind the drawbridge of a castle.

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Answer:

Buoyant force is directly proportional to the density of the fluid in which an object is immersed. Buoyancy is the tendency to rise or float in a fluid. The upward force exerted on objects submerged in fluids is called the buoyant force. where ρ is the density, V is the volume, and m is the mass of the displaced fluid.

Explanation:

Answer:

well It means the plant cells inside of a organism

First, compare two balls from the heavier group to Group A. There must be two weighings; lower bound because there are three options per weighing.

a) Follow these steps to determine which ball is heavier in just two weighings:

1. nine balls should be divided into three groups of three balls each—Group A, Group B, and Group C.

2. Using the balanced scale, weigh Group A in comparison to Group B:

3. Using just two weighings, you can determine which ball is heavier by following these steps.

4.  Compare those two balls to one another:

Using just two weighings, you can determine which ball is heavier by following these steps.

(b) The decision tree lower bound demonstrates that fewer than two weighings are required to identify the defective ball. This is due to the fact that there are nine balls, and each one can only tell you how much each group weighs. We can only reduce the number of possibilities by a factor of three with each weighing.

We would need to compare all possible ball combinations, which would require more than two weighings, in order to distinguish between all nine balls in a single weigh. Therefore, the minimum required to determine which of the nine balls with identical appearances is the heavier is two weighings.

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Answer:

Option (c) is the correct answer.

Explanation: When two substances does not exchange any energy with each other then they are said to be in thermal equilibrium with each other. This means the temperature of both the substances will be equal, that is why, there is no exchange of energy between them. Thus, we can conclude that when the objects have the same temperature then you can tell the two objects are in thermal equilibrium.

Answer:

1) vitamins

2) Meat, eggs, liver

Explanation:

1) Low levels (deficiency) in vitamins such a vitamin B12 and vitamin D can lead to tiredness.

Vitamin B12 is one of the most important nutrients for energy because it helps the blood, digestive system, brain and nervous system. Vitamin D is necessary for bone health and good immune function.

2) To prevent deficiency in vitamins, foods such as beef, eggs, liver, fish can be eaten. Also, supplements such as B-complex vitamin can be taken.

Answer:

Explanation:

When the wavelength becomes larger the amplitude of the wave becomes shorter. This is the reason when a Tsunami occurred less damage to the ships in deep sea.

The magnitude of the impulse that the plate gives to the bullet is 6.7 N

We know change in momentum horizontally = m v cos Ф2 - m u cos Ф1

and change in momentum vertically = m v sinФ2 - (- m u sinФ1)

where, m = mass = 20g = 0.02 kg

v = final velocity = 320 m/s

u = initial velocity = 350 m/s

Ф1,Ф2 = angle = 30 degrees

Putting these values we get,

Change in momentum horizontally = - 0.5196 kg-m/s

Change in momentum vertically = 6.700 kg-m/s

Magnitude of change in momentum is : \(\sqrt{-0.5196^{2} + 6.7^{2} } = 6.7 N\)

So the magnitude of the impulse that the plate gives to the bullet is 6.7 N

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Answer:

160,934.4 cm or in other words *160,934*

Explanation:

1 mile = 5280 ft.

5280 ft. = 63360 in.

63360 in. = 160934.4

Answer:

The first one is: His weight on the Earth before take-off and the weight after take-off back on Earth once he gets back should be recorded as his Independent variable and his dependent variable.

The second one is: If he gained the weight back that he had lost while on the trip then you should disregard them unless that was the weight he was when he weighed himself after he got back.

The Third one is: The mass of an object is the amount of matter it contains, regardless of its volume or any forces acting on it. … Gravity is a force that attracts objects toward the Earth. The weight of the object is defined as the force caused by gravity on a mass.

Explanation:

I took  the quiz earlier. Hope this Helps you.

La fórmula: P = W/t  ó  W = P x t. donde:

P = potencia

W = trabajo

t = tiempo

Otra fórmula de potencia es: P= I x V

Proceso de carga de un capacitor - condensador

Una fórmula muy importante que también hay que tener en cuenta es: V = q/C que indica que el voltaje es proporcional a la carga que hay en un condensador.

De la fórmula de potencia P= I x V y considerando que la corriente es constante (corriente continua), entonces la potencia es proporcional al voltaje.  Si el voltaje aumenta en forma lineal, la potencia aumentará igual. Ver el siguiente diagrama.

Como la potencia varía en función del tiempo, no se puede aplicar la fórmula W = P x t, para calcular la energía transferida. Pero observando el gráfico, se ve que esta energía se puede determinar midiendo el área bajo la curva de la figura.

Energía Almacenada en un Condensador - Capacitor

El área bajo la curva es igual a la mitad de la potencia en el momento “t”, multiplicada por “t”.

Entonces: W = (P x t) / 2. Pero se sabe que P = V x I. Si se reemplaza esta última fórmula en la anterior se obtiene: W = (V x I x t) / 2, y como I x t = CV = Q, entonces para saber cuanta energía (W) hay en un condensador usamos una de las siguientes fórmulas:

W = (CV2/2) julios

W = (QV/2) julios

W  = (Q2/2C) julios

, donde:

W = Trabajo (Energía) en julios

C = Capacidad en faradios

V = voltaje en voltios en los extremos del condensador

Q = carga del condensador

Answer with the given explanations below: First the given formula that looks like this is: or where:

P = power

W = work

t = time

Next with another given power formula that looks like this is:

This is the charging process of a capacitor - capacitor #1.

Then it's a very important given formula that it must also be taken into account is: which it was indicated that the voltage is proportional to the charge on a capacitor.

In the following below, from the given power formula that looks like this is: and we are considering that the current is the constant (direct current), and then the power is proportional to the voltage. If the voltage increases linearly, the power will increase the same. See the following diagram. (I'm sorry, Yhungbabe, I don't have the diagram to show you in order to refer to the total energy stored in the capacitor because I havenèt learned the energy stored in the capacitor)

Anyway, since the power varies as a function of the time, the given formula that looks like this is: cannot be applied to calculate the energy transferred. But looking at the graph, it seems that this energy can also be determined by measuring the area under the curve of the figure.

This is The Energy Stored in a Capacitor - Capacitor #2.

The area under the curve is equal to the half of the power at time "t", being multiplied by "t".

Then with the given formula below that looks like this is:

But it's known that If this is the last given formula is being replaced in the previous one, we obtain the new given formula that looks like this is: and as another new given formula that looks like this is: there's so to find out how much energy (W) that there's in a capacitor that we use in one of the new given formulas that looks like in the listed below are:

joules

joules

joules  

Now finally where:

W = Work (In The Energy) in Joules

C = Capacity in the farads

V = voltage in the volts at the ends of the capacitor

Q = a capacitor charge

I apologize for the late answer and the replies, so anyway, I use the online language translator in order to translate Spanish to English for you in order to understand my work given below, so, I hope my answer with the given explanation below here is very helpful to your own question about how to calculate the total energy stored in the capacitor with the image has been provided, please mark me as Brainliest and have a great rest of the day! :D

Sincerely,

Jason Ta,

The Ambitious of The Brainly And The Role of The TDSB And WHCI Student of The High School.

Answer:

i donk know

Explanation:

Answer:

I think about 70.

Explanation:

I hope I helped

Kieran had a greater average speed than Jevon. Let us go into more detail in the explanation below. To compare the average speeds of Kieran and Jevon, we need to find out the speed of each person.

We can use the formula speed = distance/time. Kieran ran 8 laps in 18 minutes, which means he ran 8/18 = 0.44 laps per minute. To find out Kieran's speed, we need to multiply this by the length of one lap. If we assume that the length of one lap is 400 meters, then Kieran's speed is:0.44 laps per minute × 400 meters per lap = 176 meters per minute Jevon ran 6 laps of the track, but we don't know how long it took him.

Therefore, we can't calculate his speed directly. However, we can still compare his speed to Kieran's by using ratios. If we assume that Jevon ran the same length of track as Kieran, then we can write the following equation: Kieran's speed/Jevon's speed = Jevon's time/Kieran's time.

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Answer:

Option B is the correct answer

Explanation:

Atomic number of Americium is 95 however in option B it is given as 94.

Thus, option B is the correct answer.

The light your friend receives, relative to light from an equivalent source on the spaceship is slightly lower in frequency.

option A.

The gravitational redshift happens when light tries to escape from a gravitational field.

A gravitational redshift is defined as a shift toward longer wavelengths of spectral lines emitted by atoms in strong gravitational fields.

The redshift of light or other electromagnetic radiation is caused by a strong gravitational filed.

If you shine a beam of monochromatic light earth to an astronaut friend in orbit. The light your friend receives, relative to light from an equivalent source on the spaceship is slightly lower in frequency because the light will travel from higher gravitational energy zone to lower gravitational energy zone. So lower gravitational energy implies lower frequency of light.

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Acceleration is the variable that is NOT shown on a velocity-time graph

Velocity - time graph, evidently shows two variables, velocity on one axis and time on other . But as we know , that acceleration can be calculated by the formula which is

acceleration = change in velocity / time

hence , the derivative of velocity is acceleration

which mean that the slope of the Velocity - time graph shows the acceleration , which cannot be seen , but is hidden as the slope of that graph

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The acceleration of this particle under the influence of force F is equal to the force divided by the sum of the masses of the two particles.

The acceleration of the combined particle under the influence of force F can be determined using Newton's second law of motion, which states that the force acting on an object is equal to the mass of the object times its acceleration. In mathematical form, this can be expressed as:

F = ma

Where F is the force, m is the mass, and a is the acceleration.

If the two particles are combined into one particle with mass m₁ and m₂, then the acceleration of this particle under the influence of force F can be found by rearranging the equation to solve for acceleration:

a = F / m

Substituting the combined mass of the two particles into the equation gives:

a = F / (m₁ + m₂)

Therefore, the acceleration of the combined particle is F / (m₁ + m₂), where F is the force and m₁ and m₂ are the mass of the two particles.

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Answer:

u go to vanguard? in 6th grade

Answer:

is it correct ? sorry of it is incorrec

Answer:

I believe the answer is b

Explanation:

Answer:

G.P.E = 368.3

Explanation:

Given the following data;

Mass = 2.63kg

Height, h = 14.29m

We know that acceleration due to gravity is equal to 9.8m/s²

To find the gravitational potential energy;

Gravitational potential energy (GPE) is an energy possessed by an object or body due to its position above the earth.

Mathematically, gravitational potential energy is given by the formula;

\( G.P.E = mgh\)

Where;

G.P.E represents potential energy measured in Joules.

m represents the mass of an object.

g represents acceleration due to gravity measured in meters per seconds square.

h represents the height measured in meters.

\( G.P.E = 2.63*9.8*14.29 \)

G.P.E = 368.3

Note: the unit of gravitational potential energy is Joules.

An 10.0-kg dog is moving at a pace of 5.00 meters per second. The amount of work that must be done to halt its dog in 2.40 seconds must be at least 125 joules.

Whenever an object is transported over a length by an external force, at least a portion of that force must be applied in the plane of the displacement. In physics, this is referred to as work.

The three categories below can be used to categorize the kinds of labor that are done. The three sorts are good work, negative collaborate, and zero work. The type of work that is performed depends on the connection between force and displacement. When a force is used and an item is pushed in that direction, positive work is produced.

Work is equal to force times distance.

Work done = kinetic energy

Kinetic energy is equal to 1/2 mv2 or 1/2 10*5² or 5 *25.

= 125 joules

Hence, work done is 125 joules.

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Answer:

it's estimated to within a couple of thousands of years.

Explanation:

For a long time it was thought that the  dinosaurs died out 65 million years ago. But Paul explains, 'The dating of those layers of clay around the world is very accurate.

The value of resistor R that gives the circuit in the figure a time constant of 22 μs is 220 Ω.

The circuit that is in the figure is shown below:Given that time constant (RC) = 22 μs. To find the value of resistor R, we need to use the formula for the time constant:

RC = τ, where R is the resistance and C is the capacitance of the circuit.

Rearranging the above formula, we get:R = τ / C

Where τ is the time constant and C is the capacitance of the circuit.

From the figure, the capacitance is given as 0.1 μF

.Substituting the values of τ and C in the above formula, we get:

R = (22 × 10⁻⁶ s) / (0.1 × 10⁻⁶ F)

R = 220 Ω

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The date used to establish lien priority for a mechanic's lien is E. essential in determining which party has priority in case of a property dispute.

Lien priority is not determined by the date of the first mortgage payment after the mechanic's work has been completed. Instead, it depends on the beginning or ending of the mechanic's work as per state law or the date of recording the lien. Lien priority is crucial because it helps to resolve disputes between multiple parties with claims on the same property. The priority typically follows a first-in-time, first-in-right rule, meaning the lien that is recorded or filed first will have priority over those recorded later, this rule is followed in most jurisdictions, but specific state laws may slightly vary.

In some cases, the lienee borrows money to pay the debt, and the date of the loan may also be relevant in determining lien priority. However, it is essential to remember that the key factor remains the date of recording the lien or the date of beginning or ending the mechanic's work, as dictated by state law. Therefore, to establish lien priority for a mechanic's lien, one must consult the specific state's regulations and consider the relevant dates. So, the correct answer is E. essential in determining which party has priority in case of a property dispute.

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Answer:

Explanation: 1: The gas particles move in a straight line before colliding with something, usually the wall of their containers.

2: The is no attraction or repulsion between the gas particles.

The depth to this underwater mountain is 8410 m.

An echo is the sound heard after the reflection of the initial sound from a reflecting surface.

The echo time or the time taken for an echo to be heard is used to calculate the distance from the reflecting surface.

The Distance is of a place from the time taken to hear an echo is calculated as follows:

Distance = Speed * Time/2

Distance = 1450 * 11.6/2

Distance = 8410 m

Therefore, the depth to this underwater mountain is 8410 m.

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Answer:

When the Sun's energy moves through space, it reaches Earth's atmosphere and finally the surface. This radiant solar energy warms the atmosphere and becomes heat energy. This heat energy is transferred throughout the planet's systems in three ways: by radiation, conduction, and convection.

Hi there!

(A)

We can solve for acceleration using the following equation:

Δd = vit + 1/2at²

The shuttle lifts-off from rest, so:

Δd = 1/2at²

Rearrange to solve for 'd':

2Δd/t² = a

2(350)/(3.5²) = 57.14 m/s²

(B)

Now, we can use this equation to solve for final velocity:

vf = vi + at

vf = at

vf = 57.14 × 3.5 = 200 m/s

(C)

Now, we can use the following equation to solve for displacement:

Δd = vt

Δd/v = t

350/200 = 1.75 sec