How does a nuclear power plant produce electricity?

Quickly moving neutrons coming out of nuclear reactions are used to turn turbines that produce electricity.

Quickly moving neutrons coming out of the reaction create a gas which turns a turbine that produces electricity.

Quickly moving neutrons give their kinetic energy to the surrounding water. The water's energy is then used to turn turbines and produce electricity.

Quickly moving neutrons coming out of the reaction are slowed down by water. The water heats up and turns into steam. The steam turns the turbine and produces electricity.

Answer:

Hey there!! So the answer is that the heat required to convert a solid into a liquid or vapor, or a liquid into a vapor, without change of temperature. Hope this helped and have a great day!!

Answer:

Explanation:

This is the invisible heat required to change the state of a body either from solid to liquid or from liquid to gas.

Latent heat is not detectable by a thermometer.

There are two types of latent heat

(1) Latent heat of fusion

(2) Latent heat of vaporization

(1) Latent heat of fusion: This is the heat energy required to convert a substance from its solid form to its liquid form without a change in temperature.

(2) Latent heat of vaporization: This is the heat required to convert a substance from its liquid form to vapour without a change in temperature.

Answer: goldilock's zone

The zone which allows the potential for life on Earth is the circumstellar habitable zone.

Explanation:

The circumstellar habitable zone is the zone in which Earth exists. This zone allows the Earth to have or support life on the planet. The habitable zone signifies the presence of support system which could lead to pursue life and that is the presence of water and oxygen.

The water needs to be in ample liquid form with a well defined atmospheric pressure. The presence of zone is circumstellar that is determined by the position of the planet in the Solar System.

Today, most classification systems place bacteria in the kingdom

a. Monera

Answer:

(A) burning wood

Explanation:

Burning of wood is the only combustion reaction we have listed among the options.

Combustion is an exothermic reaction in that heat is released to the environment. Combustion usually occurs in the presence of oxygen. In this reaction, a fuel source, the wood reacts with oxygen to produce heat energy and some other products.

Answer:

A. Burning wood

Explanation:

Answer:

the main ingredient that helps a cake rise is baking powder (sodium bicarbonate); when it interacts with the heat, it creates a chemical reaction that produces carbon dioxide (tiny bubbles) to allow the cake to be light and fluffy.

This is a type of chemical reaction...exothermic (reaction that produces heat) and endothermic (reaction of taking the heat in).  Endothermic chemical reaction that changes the batter from the thick liquid state to a firm, fluffy state.

Explanation:

Answer:

2.21

Explanation:

At STP, 1 mol of gas has a volume of 22.4 L, so we know we're starting with 1 mol of gas.

Assuming the temperature and volume are held constant, the number of moles needed to reach 325 kPa is found with ideal gas law:

PV = nRT

(325,000 Pa) (0.0224 m³) = n (8.314 Pa m³ / mol / K) (273.15 K)

n = 3.21 mol

Since we started with 1 mol, we need to add 2.21 mol.

According to the Avogadro's law, 2.2075 mole are needed to be added to the container to make the pressure equal to 325 kPa.

Avogadro's law is a gas law which states that the total number of atoms or molecules has a direct proportion to the volume occupied by a gas at a constant temperature and pressure.

It is closely related to ideal gas equation as it links temperature, pressure, volume and the amount of substance.It is given as, V∝n,

The straight line graph of volume versus moles is a straight line passing through the origin which implies that zero moles of gas occupy zero volume.

As 1atm=101.325 kPa so, 325 kPa=325/101.325=3.2075 atm,as at STP 1 atm=22.4 liter.

Applying Avogadro's law, n₂=71.848×1/22.4=3.2075 moles .In order to find moles to be added , 3.2075-1= 2.2075 moles.

Thus, 2.2075 moles of gas are to be added to the container to make the pressure equal to 325 kPa.

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Answer:

110 g

Explanation:

q = mCΔT

where q is heat, m is mass, C is specific heat capacity, and ΔT is change in temperature.

Given q = 250 J, C = 0.228 J/g/°C, and ΔT = 10.0 °C:

250 J = m (0.228 J/g/°C) (10.0 °C)

m = 110 g

To find the mass of tin, the formula Q = mcΔT is used, with the given specific heat capacity and the change in temperature. The calculation results in a mass of approximately 109.65 grams for the tin when 250 J of thermal energy raises its temperature by 10°C.

To calculate the mass of the tin when 250 J of thermal energy are added, and its temperature increases from 24.0 degrees C to 34.0 degrees C, we use the formula Q = mcΔT, where Q is the heat added, m is the mass, c is the specific heat capacity, and ΔT is the change in temperature. Given that the specific heat capacity of tin (c) is 0.228 J/g°C, and the change in temperature (ΔT) is 34.0°C - 24.0°C = 10°C, we can rearrange the formula to solve for the mass (m).

m = Q / (cΔT) = 250 J / (0.228 J/g°C × 10°C) = 250 J / (2.28 J/g) = 109.65 g (rounded to two decimal places).

The mass of the tin is therefore approximately 109.65 grams.

Answer:

3.1 m/s

Explanation:

The acceleration of the ball is given by:

[tex]a=\frac{v-u}{t}[/tex]

where

v is the final velocity

u is the initial velocity

t is the time elapsed

Here we know:

a = 1.8 m/s^2 is the acceleration

v = 7.6 m/s is the final velocity

t = 2.5 is the time elapsed

Solving for u, we find the initial velocity of the ball:

[tex]u=v-at=7.6 m/s-(1.8 m/s^2)(2.5 s)=3.1 m/s[/tex]

Energy enters an apple through photosynthesis, where the apple tree captures solar energy and converts it into chemical energy, storing it as sugar within the apple.

The energy gets into the apple primarily through a process called photosynthesis. This process is essential for plants, allowing them to capture solar energy from the sun and convert it into chemical energy, which is stored in the form of sugars like glucose. Thus, the correct answer is: C. The apple tree stores energy from the Sun in the apple as sugar.

Through photosynthesis, plants absorb solar energy and use it to transform carbon dioxide and water into glucose, which is a simple sugar, and oxygen. The energy from the sun is stored in the chemical bonds of the glucose molecules. Later, this energy can be accessed by organisms that consume the plants, including humans when they eat plant products like apples.

Final answer:

Energy enters the apple through the process of photosynthesis, where the apple tree captures solar energy and stores it as sugar in its fruits, such as apples. So the correct option is C.

Explanation:

Energy gets into the apple primarily through the process of photosynthesis. The apple tree uses solar energy from the sun to convert carbon dioxide and water into glucose and oxygen. This chemical reaction captures the radiant energy in sunlight and converts it into stored chemical energy in the form of sugars, such as glucose, which accumulates in the fruits of the plant, including apples. Therefore, the correct answer to how energy gets into the apple in the first place is:

Newton’s Second Law concerns the generation of force based on an object’s mass and acceleration, as described by the equation F=ma.

Hope this helps!

The two variables which influences the body force addressed in “Newton’s second law of motion” s mass and acceleration.

Explanation:

The “Newton’s second law of motion” states that rate of change of momentum is directly in proportional to force applied on body.  

[tex]\begin{array}{l}{F \propto \frac{d p}{d t}} \\ {F=m \cdot \frac{d v}{d t}} \\ {F=m \cdot a} \\ {\text { Force }=\text {Mass} \times \text {Acceleration}}\end{array}[/tex]

This is how the Second law of motion is derived in formula by the Newton which establishes the relationship between the two variables which influences the force of the body.

Answer:

Earth is heated by energy from the Sun.

Explanation:

This is correct on edge.

Radiation examples: Earth heated by Sun's energy, soup microwaved. Other options involve conduction or convection, not radiation.

Radiation refers to the transfer of heat energy through electromagnetic waves. Based on the given options, the examples of radiation are:

Earth is heated by energy from the Sun.

This is an example of radiation because the Sun emits heat energy in the form of electromagnetic waves, which travel through the vacuum of space and reach Earth, warming it in the process.

Soup is heated in a microwave.

Microwaves use electromagnetic radiation to heat food. Microwaves are a form of electromagnetic waves, and they directly heat the water molecules inside the food, causing it to heat up.

Water is boiled in a pot on a stove burner.

This is also an example of radiation. When the stove burner heats the pot, the pot, in turn, heats the water through the process of conduction, but there is also radiation involved. As the pot gets hot, it emits infrared radiation, which further heats the water.

The other examples mentioned (Troy's hand being burned, hot dog getting warm over a fire) involve conduction and convection, not radiation.

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Answer:

Explanation:

They substituted the value of M₁.

∑F = ma

M₁ a = T₁ - F

M₁ a = T₁ - Nμ

M₁ a = T₁ - M₁g μ

Given that M₁ = 2, g = 9.81, and μ = 0.25:

(2) a = T₁ - (2) (9.81) (0.25)

Answer:

The current through the circuit is 5A

Explanation:

Ohm's Law

The intensity of current through a circuit is directly proportional to the voltage or voltage of the same and inversely proportional to the resistance it presents.

[tex]I=\frac{V}{R}[/tex]

Where I is the intensity that is measured in amperes (A), V the voltage that is measured in volts (V); and R the resistance that is measured in ohms (Ω).

With a 50V battery and a 10Ω

[tex]I=\frac{50V}{10ohms}=5A[/tex]

Answer:

54 N

Explanation:

Draw a free body diagram.  There are four forces acting on the balloon.  Buoyant force pushing the balloon up, gravity pulling the helium down, gravity pulling the balloon skin down, and gravity pulling the load down.

Apply Newton's second law:

∑F = ma

B − Wh − Wb − L = ma

When the load is at a maximum, the acceleration is 0:

B − Wh − Wb − L = 0

B − Wh − Wb = L

B − mh g − Wb = L

The mass of the helium is its density times its volume:

B − ρh Vh g − Wb = L

Buoyant force is defined as B = ρVg, where ρ is the density of the displaced fluid (in this case, air), V is the volume of the displaced fluid, and g is acceleration of gravity.  Since the volume of displaced air = the volume of the helium:

ρa V g − ρh V g − Wb = L

(ρa − ρh) V g − Wb = L

Given that ρa = 0.90 kg/m³, ρh = 0.178 kg/m³, V = 20 m³, g = 9.8 m/s², and Wb = 88 N:

(0.9 − 0.178) (20) (9.8) − (88) = L

L = 53.5 N

Rounded to 2 sig-figs, the maximum load that can be supported is 54 N.

Answer: i think it would be watts

Efficiency =

(energy coming out that does what you want)

divided by

(total energy you put in).

= = = = = = = = = =

Efficiency = (20 J) / (100 J)

Efficiency = 20/100

Efficiency = 0.20

Efficiency = 20%  (C)

Engine's efficiency is the ratio of the work done by the engine and heat absorbed by it.  The efficiency of the given engine is 20%.

[tex]E = \dfrac {W}{q}\times 100[/tex]

Where,

[tex]E[/tex]- efficiency

[tex]W[/tex] = work done by engine = 20J

[tex]q[/tex] - energy absorbed by engine  = 100 J

Put the values in the formula,

[tex]E = \dfrac {20}{100}\times 100\\\\E = 20\%[/tex]

Therefore, the efficiency of the given engine is 20%.

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Answer:

volcanic eruptions

Explanation:

The volcanic eruptions are the ones that manage to cause changes to the lithosphere by building up new material on the surface. Through the volcanic eruptions we have release of pyroclastic material on the surface, and more importantly and in much higher amount lava flows. The lava flows quickly cool off on the surface on the Earth, and as they do they pile up new layers of igneous rocks, thus new crust on the surface of the Earth, causing changes on the lithosphere and shaping it for the foreseeable future.

Answer:

A. volcanic eruptions

Explanation:

Answer: C) Both are located to the right of visible light on the spectrum

Explanation:

BECAUSE....

Electromagnetic wave is defined as the wave which is associated with both electrical and magnetic component associated with them. They travel with the speed of light.

Both radio and microwaves are electromagnetic waves which are adjacent to each other in electromagnetic spectrum towards lower frequency and higher wavelength.

The relationship between wavelength and frequency of the wave follows the equation:

[tex]\nu=\frac{c}{\lambda}[/tex]

where,

v = frequency of the wave

c = speed of light  

[tex]{\lambda}[/tex]= wavelength of the wave

* Hopefully this helps: ) Mark me the brainliest:)!!

~234483279c20~

≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡⊕

Answer:

C.) Both are located to the right of visible light on the spectrum

     ↓↓↓

Explanation:

Electromagnetic wave is defined as the wave which is associated with both electrical and magnetic component associated with them. They travel with the speed of light.

Both radio and microwaves are electromagnetic waves which are adjacent to each other in electromagnetic spectrum towards lower frequency and higher wavelength.

The relationship between wavelength and frequency of the wave follows the equation:

where,

v = frequency of the wave

c = speed of light  

= wavelength of the wave               ↑↑↑

≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡⊕

Hope I helped!!! ∞

~Nuha

   <3

Answer:

Power = Work / time

          = 12900 J / (3*60)s

          ≈ 71.667 Watts

Answer:

71.66 watt is the power required to move the bag

Option: C

Explanation:  

From the given question,  Work done is 12900 J (work is the product of force and displacement) in 3 minutes.

We know that, rate of work done is the power.

[tex]\text { Power }=\frac{\text {work}}{\text {time}}[/tex]

Substitute the given values in the above formula to obtain power required to move the bag.

[tex]\text { Power }=\frac{12900 \mathrm{J}}{3 \times 60 \mathrm{s}}[/tex]

[tex]\text { Power }=\frac{12900 \mathrm {J}}{180 \mathrm {s}}[/tex]

[tex]\text { Power }=71.667 \mathrm{Watt}[/tex] (Joule per second is equal to watt )

Therefore the power required to move the bag is 71.66 watt.

Answer:

d

Explanation:

i got it correct on my test

Answer:

B) 2.2 Ω

Explanation:

The resistor between B and C is connected in parallel to the resistor between C and D (because their ends are connected to the same points: C on one side and B (which has same voltage as D) on the other side, so they have same potential difference across them.

So their equivalent resistance is

[tex]\frac{1}{R_{BD}}=\frac{1}{R_{BC}}+\frac{1}{R_{CD}}=\frac{1}{4.0 \Omega}+\frac{1}{5.0 \Omega}=\frac{9}{20 \Omega}\\R_{BD}=\frac{20 \Omega}{9}=2.22 \Omega[/tex]

The resistor between A and B, instead, is short-circuited, because the current flows through the upper branch of the circuit (connecting A with C), which has zero resistance (it is a wire without any resistor). This means that the resistor between A and B should not be considered: so, the total resistance of the circuit is

[tex]2.2 \Omega[/tex]

Jenny's poor performance in her speech due to nervousness and stuttering is an example of performance anxiety.

This situation can be described as a case of performance anxiety, where Jenny's nerves and fear of speaking in front of the class caused her to stutter and perform poorly in her speech.

Performance anxiety is a psychological phenomenon that affects individuals in various situations, including public speaking. It can lead to physical symptoms like stuttering and psychological distress that impairs performance.

To overcome performance anxiety, Jenny can practice her speech beforehand, use relaxation techniques, and seek support from teachers or a speech therapist.

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Jenny's situation of being nervous while giving a speech and performing poorly due to stuttering is an example of performance anxiety. This type of anxiety typically occurs when a person is performing in front of others and can result in physical reactions like stuttering. Methods of mitigating this anxiety include breathing exercises and practice.

This situation is an example of performance anxiety, which falls under the Psychology subject. Performance anxiety, or stage fright, often happens when individuals are required to perform in some way in front of others. This might include giving a speech, taking an exam, or playing a sport. When a person, like Jenny, becomes too anxious or nervous, they may have physical reactions like stuttering, sweating, or even forgetting their lines, all symptoms reflected in Jenny's situation.

Jenny's fear likely stems from her perception of the situation, including her expectations of herself and her fear of other people's perceptions. This could create a situation where she performs below her actual ability level. This type of anxiety, while common, can be mitigated with various techniques such as deep breathing exercises, visualization, and practice.

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Answer:

low risk for tissue damage

uses radio waves

the last three are not correct

:)

Answer:

low risk for tissue damage

no radiations

Explanation:

MRI = magnetic resonance Imaging

Ultrasound

These are two process by which we can find the damaged tissues and and their position. These methods are used in medical science and hence these process must be safe to use.

As we know that all electromagnetic radiations are not good for humans as they are of high energy range so here in order to avoid this all we use the phenomenon of resonance to find out the situation of damaged cells or tissues in the body.

So correct answers are

low risk for tissue damage

no radiation

Answer:

0.24 kg used up

Explanation:

He has a mass of 67 kg

The gravitational constant is 9.81 m/s^2

The distance upward is 3500 m

W = m*g*h

W = 67 * 9.81 * 3500

Work = 2,300,445 Joules

Work = 2300 kj

work = 2.30 * 10^6 joules in scientific notation.

Part B

He needs 4 times this amount to climb the mountain because the body is only 25% efficient in converting energy.

4*2.30 * 10^6 = 9.20 * 10^6 Joules of energy are therefore required.

The total amount in a kg of fat = 3.8 * 10^7 joules

x kg of fat is needed to provide 9.20.*10^6 joules

1 kg / (3.8 * 10^7 J ) = x kg / (9.20 * 10^6 J)

9.20 * 10 ^6 * 1 = 3.8 * 10^7 *x

9.20 * 10 ^6 / 3.8 * 10^7 = x

x = 0.24 kg of fat are needed

Answer:

D) transferred electron provides both elements with a full outer energy level.

Explanation:

Ionic or Electrovalent bonds are interatomic bonds that are formed as result of transfer of electrons between two atoms. The more electronegative atom would attract the electron to itself.

Na, sodium has an electronic configuration of 2,8,1 with a Valence electron.

Cl, chlorine is an halogen with an electronic configuration of 2,8,7.

When atoms combines, the goal is to form an octet configuration to mimic those of noble gases.

If Na, loses one electron, it would have a configuration of 2,8 which looks like a Neon atom. This configuration is stable for Na.

If the electron lost is gained by Cl, the configuration becomes 2,8,8 and resembles an Argon atom.

We can see that by the loss and gain of electrons between Na and Cl the atoms attain a stable octet configuration.

The atom Cl has more affinity for the electron. This would leave a net negative charge on its ion.

The electropositive and metallic Na would donate the electron. Its atom would then show a perfect octet of Ne, Neon. This leave a net positive charge on its ion.

Therefore, the bond type between Na and Cl is an Electrovalent bond.

Answer:

F = MLT^-2

Explanation:

Dimension of force

Force = Mass × acceleration

= Mass × (displacement/time²)

= M¹ × (L¹/T²)

= M¹ × L¹T-²

Force = MLT^-2

Thus, The dimension of Force is MLT^-2

Explanation:

the Dimension of force is MLT^-2

Answer:

Greatest-A Middle-B Last-C

Answer:

81.8 m/s

Explanation:

The initial velocity of the plane is:

[tex]v_0=115 m/s[/tex] (toward east)

So, decomposing along the x- and y- directions:

[tex]v_{x0} = 115 m/s\\v_{y0} = 0[/tex]

(we took east as positive x-direction and north as positive y-direction)

The acceleration is

[tex]a=2.88 m/s^2[/tex] (northwest, so the angle with the positive x-direction is 135 degrees)

Decomposing it along the two directions:

[tex]a_x = a cos 135^{\circ} = (2.88 m/s^2)(cos 135^{\circ})=-2.04 m/s^2\\a_y = a sin 135^{\circ} = (2.88 m/s^2)(sin 135^{\circ})=2.04 m/s^2[/tex]

So the two components of the velocity after a time t = 25.0 s will be

[tex]v_x = v_{x0} + a_x t = 115 m/s + (-2.04 m/s^2)(25.0 s)=64 m/s\\v_y = v_{y0} + a_y t = 0 m/s + (2.04 m/s^2)(25.0 s)=51 m/s[/tex]

So, the magnitude of the velocity of the plane will be

[tex]v=\sqrt[v_x^2+v_y^2}=\sqrt{(64 m/s)^2+(51 m/s)^2}=81.8 m/s[/tex]

Answer:

a

Explanation:

Answer:

Commutator reverses the flow of current through an electric motor

Explanation:

Answer:

Commutator is a ring which reverse the direction of current in AC circuit so that the coil connected to it will continuous to move in the same direction.

Explanation:

In motors there exist a coil which is rotated due to torque of magnetic field when current flow through it. Since AC current is used to run the motor so we know that AC current changes its direction after half cycle.

So here commutator plays an important role to reverse the direction of current after every half cycle so that the current goes in same direction always into the coil.

This will produce a constant direction torque on the coil so that it will rotate in same sense always.

So commutator role is to provide same direction current to the coil by reversing its direction after every half cycle