A water heater heats 146 gal of water from 61oF to 141oF every day. What is the annual energy requirement of the water heater

The term "ferromagnetic" refers to iron or oxide of irons.

Ferromagnetism is a physical phenomenon in which certain electrically uncharged materials strongly attract others.

Two materials found in nature, lodestone (or magnetite, an oxide of iron, Fe3O4) and iron, have the ability to acquire such attractive powers, and they are often called natural ferromagnets

ferromagnetic materials are used in making magnets such as electromagnets for electronic devices. And it is a very important industrial raw material.

Learn more about ferromagnetic materials here: https://brainly.com/question/10394567

#SPJ1

When Diego is in the race, he would be using only aerobic exercise.

The term aerobic exercise has to do with the type of exercise that require brisk repetitive movements in which the consumption of oxygen is elevated during the process.

A person tends to breath faster and more deeply when carrying out an aerobic exercise and the rapid movements is the reason why there is an intense demand for oxygen in the process.

As such, when Diego is in the race, he would be using aerobic exercise.

Learn more about aerobic exercise:https://brainly.com/question/2428731

#SPJ1

When traveling twice as fast your kinetic energy is increased: by four times

It is the energy possessed by a body due to its relative motion. It is usually expressed in Joules (J).

The kinetic energy depends on velocity, so when the velocity increased twice the kinetic energy increase 2^2= 4

The kinetic energy formula is:

K.E. = 1/2 * m * v²

Where:

v = speed

m = mass

Joules = Kg m²*s²

Learn more about kinetic energy at brainly.com/question/114210

#SPJ4

The characteristic of the displacement is a vector allows to find the results for the components of the displacement are;

The displacement is a vector quantity, therefore it has modulus and direction, see attached for a diagram.

The reference system the West - East axis coincides with the x axis and the South - North axis with the y axis.

Let's use trigonometry to find its components.

          cos 55 = \(\frac{y}{d}\)  

          sin 55 =  \(\frac{x}{d}\)  

          y = d cos 55

          x = d sin 55

let's calculate

         y = 310 cos 55

         x = 310 sin 55

         y = 177.8 m

          x = 253.9 m

In conclusion using the characteristics of the displacement is a vector we can find the components of the displacement are;

Learn more here:  https://brainly.com/question/4468058

The density of the substance is 1.06 g/cm³.

The mass-to-volume ratio of a substance is known as its density.

It is represented as

Density = Mass/Volume

Given,

Radius = 10 cm

Height = 12 cm

Mass = 4 kg = 4000 g

We know that the volume(V) of a solid right circular cylinder is πr²h.

Putting the given values, we get

V = (22/7)(10)²(12),           {π = 22/7}

V = (22×1200)/7

V = 3771.4 cm³

Now substituting the values of mass and volume in the formula for density,

Density = 4000/3771.4 g/cm³

Density = 1.06 g/cm³

Therefore, the density of the substance is 1.06 g/cm³.

To learn more about density, visit:

https://brainly.com/question/15164682

#SPJ4

Conservation laws are mathematical statements that describe how physical systems and processes behave.

Momentum is the rate at which the velocity of an object changes over time. It is a measure of an object's inertia and is a product of the object's mass and velocity. Momentum can also be thought of as the ability of an object to stay in motion or keep moving in the same direction. When an object has momentum, it is difficult to change its direction or speed. Momentum is conserved in collisions and is transferred from one object to another. Momentum can also be used to describe the strength of a trend or movement in a particular direction.

They are used to analyze physical phenomena and solve problems in many areas of science and engineering. Conservation laws can be used to explain the behavior of particles, fluids, and other physical systems. For example, the conservation of momentum can be used to calculate the behavior of an object after a collision. The conservation of energy can be used to calculate the energy of a system over time. These laws can also be used to analyze more complex phenomena, such as the behavior of light or electricity. In addition, conservation laws can be used to solve problems related to thermodynamics, quantum mechanics, and other areas.

To know more about momentum click-

https://brainly.com/question/1042017

#SPJ4

An iron carbon alloy is considered steel when its carbon percentage falls within the range of 0.02% to 2.1%. If the carbon content exceeds 2.1%, the alloy is classified as cast iron.

Steel is an iron carbon alloy that contains relatively low carbon percentages. Typically, steel is defined as an alloy with a carbon content ranging from 0.02% to 2.1%. The presence of carbon in this range imparts desired mechanical properties to steel, such as strength, hardness, and toughness. The specific carbon content within this range can vary based on the desired characteristics of the steel, with higher carbon percentages leading to increased hardness and lower ductility.

In contrast, cast iron is an iron carbon alloy with a higher carbon content than steel. Cast iron is typically defined as an alloy with a carbon percentage exceeding 2.1%. The higher carbon content in cast iron results in a material that is more brittle and less malleable compared to steel. This makes cast iron suitable for applications where high hardness, wear resistance, and good castability are required, such as in engine blocks, pipes, and cookware.

Learn more about alloy here:

https://brainly.com/question/1759694

#SPJ11

The Zenith angle at 45 degrees North during the Spring Equinox is 45 degrees.

The Zenith angle is measured as the angle between the vertical line (directly overhead) and the line connecting the observer to the Sun. During the Spring Equinox, when the Sun is directly above the Equator, the Zenith angle at any latitude is equal to the latitude itself.

To calculate the Zenith angle, Solar elevation angle, and beam spreading at a site located at 45 degrees North on the Autumnal equinox (September 22nd), additional information is needed, such as the time of day and the observer's exact location (longitude). These factors affect the position of the Sun in the sky. The Zenith angle is the angle between the vertical line and the line connecting the observer to the Sun. The Solar elevation angle is the complement of the Zenith angle (90 degrees minus the Zenith angle). Beam spreading refers to the divergence of the solar beam as it travels through the atmosphere, which is influenced by factors such as atmospheric conditions and the Sun's position.

The latitude at which daylight hours have the least variability is the Equator (0 degrees latitude). At the Equator, the length of daylight hours remains relatively constant throughout the year, with minimal variation. In contrast, as you move farther away from the Equator towards the poles, the variability in daylight hours becomes more pronounced, with significant changes between the seasons.

False. The spread of the solar beam, known as beam spreading, is actually greater at higher solar angles (closer to 90 degrees) compared to lower solar angles (closer to 0 degrees). At higher solar angles, the solar beam covers a larger area due to the greater incidence angle, resulting in a larger spread of solar radiation. As the solar angle decreases and approaches 0 degrees, the solar beam becomes more concentrated and focused on a smaller area, leading to a higher intensity of solar radiation at that point.

To know more about Zenith angle

https://brainly.com/question/30889585

#SPJ11

1. The statements that is not a reason why one would use motion on a slide is B. to emphasize part of a visual. 2. C. Visual priority is based on a determined assignment of value or importance to different elements.

Although the use of motion on a slide can indeed be used to emphasize part of a visual, it is not the only way to accomplish this goal. The use of color, size, contrast, and other visual elements can also be used to draw attention to specific parts of a visual. The other reasons listed - to bring in elements as one builds their point visually, to promote interaction with the audience, and to draw attention to a single element - are all valid reasons for using motion on a slide. So the correct answer is B. to emphasize part of a visual.

Visual priority refers to the hierarchy of visual elements on a slide, and the order in which they are presented to the audience. This hierarchy can be established through the use of color, size, contrast, placement, and other visual elements. By assigning different levels of importance to different elements, the designer can guide the audience's attention and create a clear and effective visual message. Other priorities listed - design priority, element priority, and structural priority - may also be important considerations when designing a slide, depending on the specific context and purpose of the presentation. So the correct answer is C. Visual priority.

Learn more about motion at:

https://brainly.com/question/29255792

#SPJ11

Answer:an increase (or decrease) in the frequency of sound, light, or other waves as the source and observer move toward (or away from) each other.

Explanation:

You will likely need to push a swing with two twin brothers on it more frequently than when pushing the swing with one on it,

To answer  how often do you need to push a swing with two twin brothers on it compared to when pushing the swing with one on it, let's consider the following steps:

1. First, understand that the frequency of pushing the swing will depend on the combined weight of the twins and the force applied during each push.
2. When pushing a swing with one twin on it, you will need less force to achieve the same height as with two twins, as there is less weight to move.
3. When pushing a swing with two twins on it, you will need to apply more force to achieve the same height as with one twin, since there is more weight to move.
4. As a result, the frequency of pushing the swing with two twins will likely be higher compared to when pushing the swing with one twin, as you need to apply more force more often to maintain the same swinging motion.

In summary, you will likely need to push a swing with two twin brothers on it more frequently than when pushing the swing with one on it, as there is more weight to move and more force required to maintain the same swinging motion.

To learn more about swing pushing https://brainly.com/question/30833488

#SPJ11

Answer: Gas

Explanation:

the particles in a gas aren’t close together and they move freely. Like the air. can I have Brainliest plz.

Explanation

the force between 2 charges is given by the formula:

then,we can check every option and compare the result to the original, hence

Step 1

a)option A

reduce one particle's charge by a factor of 16

so

now, replace

therefore, option A works

Step 2

The reduction in mass of fuel each year $0.0075/kW-hr 0.75 cents/kW-hr.

What is electrical energy?

1 GW plant operating at full load produces 1,000,000 kW and an annual electrical energy generation of

1,000,000 . 365 . 24 = 8.76 × 109 kW-hr

With a heat rate of 7.9 Billion Btu/kW-hr, this requires a heat addition rate of

1000000 . 7900000000 = 7.9 X 1014

fueled using fuel rods that contain 2.5% U-235 by mass means

2.5% = 250 ( Fuel carried about 100 tons )

the plant needs  =  2.5 X 24 / 100 = 0.6 unit trains per day

If fuel costs $30 per ton, the annual cost of fuel will be

30 X 250 X 24 X 365 = $65,700,000

The cost of fuel alone per kW-hr, based on 100% annual plant capacity, will be

65,700,000/(1000,000 X 365 X 24) = $0.0075/kW-hr 0.75 cents/kW-hr

To learn more about electrical energy visit:https://brainly.com/question/16182853

#SPJ4

Answer:

\(a=\frac{v^2}{r}\)

\(v=\sqrt{a*r}\)

\(r=\frac{v^2}{a}\)

Explanation:

This is the formula for centripetal acceleration in terms of the tangential velocity (v) and the radius of the circular motion (r).  The expression for the acceleration is already given, so simply type it as shown:

\(a=\frac{v^2}{r}\)

For the velocity (v) multiply by "r" both sides and then use the square root to solve for v:

\(a*r=v^2\\v=\sqrt{a*r}\)

For the radius multiply both sides by r and then divide both sides by the acceleration (a) in order to isolate r completely:

\(a*r=v^2\\r=\frac{v^2}{a}\)

Answer:

approximately 0.00504 kWh

Explanation:

This electrical energy and is measured in kWh.

For 5 minutes and 20 seconds of use, it is 0.06 W x 0.084 h = 0.00504 kWh.

Note: 60W = 0.06kW; 5min 20sec = 0.083(8) ≈ 0.084 hour

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

Learn more about resistance at

https://brainly.com/question/31504283

#SPJ11

Answer:

The gaps left between successive rails on a railway track, the reason is that the rails expand in summer. The gap is provided to allow for this expansion. If no gap is left, the expansion in summer will cause the rails to bend sideways. That will result in train accidents

Answer:

The gaps left between successive rails on a railway track, the reason is that the rails expand in summer. The gap is provided to allow for this expansion. If no gap is left, the expansion in summer will cause the rails to bend sideways. That will result in train accidents.

I hope it's helpful!

a) The work done on the person by gravity during the elevator ride is -20,790 J.

b) The amount of work the normal force of the floor did on the person is 20,790 J.

c) The average power of the force of gravity is -697 W.

The work done by gravity can be calculated using the formula:

Work = Force × Displacement × cos(θ)

In this case, the force of gravity is acting in the opposite direction to the displacement, so the angle θ is 180 degrees. The work done by gravity can be expressed as:

Work = mgh

where m is the mass of the person (70 kg), g is the acceleration due to gravity (9.8 m/s²), and h is the height (300 m).

Substituting the given values into the formula, we have:

Work = (70 kg) × (9.8 m/s²) × (300 m)

Work ≈ -20,790 J

Therefore, the work done on the person by gravity during the elevator ride is approximately -20,790 J. The negative sign indicates that the work is done in the opposite direction to the displacement.

The work done by the normal force of the floor can be calculated using the same formula as in part (a):

Work = Force × Displacement × cos(θ)

In this case, the normal force is acting in the same direction as the displacement, so the angle θ is 0 degrees. The work done by the normal force can be expressed as:

Work = mgh

Using the same values as in part (a):

Work = (70 kg) × (9.8 m/s²) × (300 m)

Work ≈ 20,790 J

Therefore, the amount of work the normal force of the floor did on the person is approximately 20,790 J.

The average power can be calculated using the formula:

Power = Work / Time

In this case, the work done by gravity is -20,790 J (as calculated in part a), and the time taken for the elevator ride is not given. Therefore, we cannot directly calculate the average power using the given information.

However, if the time taken for the elevator ride is known, the average power can be determined by dividing the work by the time.

For example, if the time taken is 30 seconds:

Power = -20,790 J / 30 s

Power ≈ -697 W

Therefore, the average power of the force of gravity would be approximately -697 W. The negative sign indicates that the power is being exerted in the opposite direction to the displacement.

To know more about Power, refer here:

https://brainly.com/question/31220381#

#SPJ4

Here's the neat, cool way to convert units like this:

-- 1 kilogram  =  1,000 grams

-- 1 meter  =  100 centimeters

So . . . . .

(1000 kg/m³) x (1000 g/kg) x (1 m/100 cm)³ =

(1,000 kg/m³) x (1,000 g/kg) x (1 m³/1,000,000 cm³) =

(1,000 x 1,000 x 1 / 1,000,000) (kg-g-m³ / m³-kg-cm³)  =  1 g/cm³

The system will undergo simple harmonic motion in the case where the restoring force is directly proportional to the displacement (option b).

In simple harmonic motion, the restoring force acting on the system is directly proportional to the displacement from the equilibrium position. This relationship is given by Hooke's Law: F = -kx, where F is the restoring force, x is the displacement, and k is the spring constant.

Option a (F directly proportional to x²) does not correspond to simple harmonic motion because the force is proportional to the square of the displacement, which does not follow Hooke's Law.

Option c (F directly proportional to \(\frac{1}{x}\)) does not correspond to simple harmonic motion either because the force is inversely proportional to the displacement, which is not consistent with Hooke's Law.

Option d (F directly proportional to sin x) does not represent a linear relationship between the force and displacement. Simple harmonic motion requires a linear relationship, not a trigonometric one.

Therefore, only option b (F directly proportional to x) satisfies the conditions for the system to undergo simple harmonic motion.

To know more about the simple harmonic motion refer here :

https://brainly.com/question/30404816#

#SPJ11

In T-ball, batters hit a ball that is placed on a T-shaped stand  is that the Batter B will likely hit the ball the greater distance than Batter A in T-ball.

It is more likely that Batter B will hit the ball the greater distance than Batter A in T-ball.

This is because Batter B is using the bat's maximum potential energy to hit the ball.

Batting directly behind the ball gives Batter B more control over the swing's direction and ensures the maximum potential energy transfer to the ball.

Let us understand how it happens, the baseball bat has the most potential energy when it is at a right angle to the ground.

The maximum potential energy of the bat is equal to the product of its mass, the gravitational force acting on it, and the height of the bat above the ground.

By holding the bat directly behind the ball, Batter B has a higher chance of creating a larger potential energy by using the bat's maximum potential energy to hit the ball.

This, in turn, will help the ball go further.

The batter who is hitting the ball with the bat directly behind it is the best way to hit the ball in T-ball.

Hitting the ball in this way enables the batter to get the most control over the direction and distance the ball travels.

In conclusion, Batter B will likely hit the ball the greater distance than Batter A in T-ball.

For more questions on distance

https://brainly.com/question/30283543

#SPJ8

True, some of the tiles in Byzantine mosaics were placed at an angle to reflect the light. This was done to enhance the visual appearance and create a dazzling effect.

Byzantine mosaics were used to decorate and embellish the walls, floors, and ceilings of buildings such as churches, palaces, and public places. They were made of small, colored, and shiny tiles called tesserae, which were arranged in various patterns to create intricate and sophisticated designs. One of the notable features of Byzantine mosaics was the use of tesserae at different angles to reflect the light and create a mesmerizing effect. The artists who created the mosaics were highly skilled and trained, and they knew how to use the properties of light to enhance their art. By placing the tiles at an angle, they could make the light bounce off the surface and produce a sparkling and radiant effect. The use of angles also allowed the artists to create depth, texture, and movement in their designs, which made them more dynamic and engaging. The Byzantine mosaics are still admired and revered for their beauty and craftsmanship, and they continue to inspire and influence artists and designers to this day.

In summary, some of the tiles in Byzantine mosaics were placed at an angle to reflect the light and create a dazzling effect. This technique was used by the artists to enhance the visual appearance and create depth, texture, and movement in their designs. The use of tesserae at different angles is one of the defining characteristics of Byzantine mosaics, and it reflects the skill and creativity of the artists who made them.

To learn more about Byzantine mosaics visit:

brainly.com/question/10819385

#SPJ11

The magnitude of the upward acceleration of a load of bricks is 2.77 m/s².

Tension is the pulling force cаrried by flexible mediums like ropes, cаbles аnd string. Tension in а body due to the weight of the hаnging body is the net force аcting on the body.

The tension in the string when the body cаn be given аs,

T = m(a +g)

Here, (m) is the mаss of the body, (а) is the аccelerаtion аnd (g) is the аccelerаtion due to grаvity.

The tension due to the bricks with mаss of 15.2 kg is,

T = 15.2(a + 9.80)

The tension due to the bricks with mass of 27.2 kg is,

T = 27.2(9.80 - a)

Equate both the equation as,

15.2(a + 9.80) = 27.2(9.80 - a)

15.2a + 148.96 = 266.56 - 27.2a

42.4a = 117.6

a = 2.77 m/s²

Thus, the magnitude of the upward acceleration of a load of bricks is 2.77 m/s².

Your question is incomplete, but most probably your full question can be seen in the Attachment.

For more information about tension refers to the link: https://brainly.com/question/11191036

#SPJ11

The Anti-Federalists argues against the expansions of the national power.

Anti-Federalism was able to late-18th-century politically movement that opposes the creations of a stronger U.S. federalism Government and whichs later opposes the notification of the 1787 Constitution. The previous constitutional, called the Articles of Confederation and Perpetually Union, gave state government's more authority.

The Anti-Federalists opposed the ratifications of the 1787 U.S. Constitutional because they're feared that the new national government wouldn't be too powerful and thus threaten individuals libertines, given the absence of a bill of rights.

To know more about Anti-Federalists click-
https://brainly.com/question/1058603
#SPJ1

yeah i did, hope you understand

Answer:

Explanation:

Electromagnetic waves are formed by the interference of both electric and magnetic fields. These include: Microwaves, Radio waves, Infrared, Visible, Ultraviolet, X-ray, and gamma rays. These waves can be arranged in a specific order (called spectrum) with respect to their wavelength or frequency. The higher the wavelength, the lower the frequency. And vice versa.

These waves are transverse, and travels at the same speed (speed of light - 3.0 x \(10^{8}\) m/s).

In the given question, the answers are:

1 - Magnetic

2 - Region

3 - Refractive indices

4 - Greater

5 - Higher

6 - Wavelength

The proper order of structures through which light must pass in order to perceive and image is cornea, aqueous humor, lens, vitreous humor, retina.

These are the five main structures of the human eye that enable vision, including light perception and imaging. Let's delve into each of these structures.

Cornea: The clear, protective outer layer of the eye is the cornea. The cornea has two purposes: to shield the inner eye from harm and to help focus light on the retina at the back of the eye.

The cornea's curved shape bends light waves as they enter the eye, assisting in their concentration.

Aqueous humor: This is a liquid that flows throughout the front of the eye, nourishing and removing waste from its surrounding tissues.

It aids in the maintenance of normal eye pressure, and if this pressure becomes too high, it can lead to glaucoma.

Lens: The lens' job is to concentrate light onto the retina. It's a transparent structure with a biconvex (lens-like) shape that varies in thickness.

It is supported by ciliary muscles that allow it to alter shape when we focus on things at different distances.

Vitreous humor: This gel-like substance fills the eye's posterior (rear) cavity, providing it with structural stability and helping it to maintain its form. It also assists in light refraction.

Retina: This is a thin layer of tissue lining the rear of the eye. The retina's photoreceptor cells, or rods and cones, are sensitive to light.

The retina converts light energy into neural signals that are transmitted to the brain via the optic nerve, which is located behind the eye. The brain translates these signals into images, allowing us to see.

What we see when we open our eyes is formed by light. In order to perceive an image, light must pass through a series of structures in the eye.

The cornea, aqueous humor, lens, vitreous humor, and retina are the five main structures of the human eye that enable vision, including light perception and imaging.

to know more about light refer here:

https://brainly.com/question/29994598#

#SPJ11

Answer:

food chain is a process of how food is transported to the plant and then to the animal that eats the animal. there are primary, secondary, and tertiary and then decompose.

Explanation:

plz mark my answer as the brainliest

Answer:

A hierarchical series of organisms each dependent on the next as a source of food.

Explanation:

Hope this helps!! plz mark brainliest-Lily ^_^ ( food chain also known as the Circle Of Life)

A thermal energy transfer portfolio would be an excellent way for students to showcase their knowledge and understanding of this important scientific concept.

Thermal energy transfer is the energy transfer between two or more objects that have different temperatures. This energy transfer can take place in three different ways: conduction, convection, and radiation. A portfolio is a collection of documents or pieces of work that demonstrate a person's skills, abilities, and achievements in a particular area.

Therefore, a thermal energy transfer portfolio would be a collection of documents or pieces of work that demonstrate a person's skills, abilities, and achievements related to thermal energy transfer. This portfolio could include lab reports, experimental data, diagrams, and explanations of the various ways thermal energy can be transferred.

For example, a student's thermal energy transfer portfolio might include:

1. A lab report detailing an experiment they conducted to measure the rate of heat transfer through different materials using conduction.

2. A diagram showing the process of heat transfer through convection in a fluid, such as air or water.

3. A written explanation of the concept of radiation and how it relates to thermal energy transfer.

4. A spreadsheet of data showing the temperature changes in a system as heat is transferred through it.

For more such questions on thermal energy:

https://brainly.com/question/19666326

#SPJ8