answersLogoWhite

0

🧪

Energy

The Energy category covers the description, definition, and use of all types of energy. Questions of a general nature can be put in the general Energy category. Other sub-categories exist for Fossil fuels, Nuclear energy, and renewables such as Wind, Solar, Hydro, Tidal, and Wave power.

24,905 Questions

How can the sun be used as an energy source?

The sun can be used as an energy source through solar panels, which capture sunlight and convert it into electricity. This renewable energy source is sustainable, reduces reliance on fossil fuels, and is environmentally friendly. Solar power can be used in homes, businesses, and even on a larger scale to power cities.

Is the sun your most important energy resource?

Yes, the sun is a crucial energy resource for Earth as it provides sunlight that is converted into solar energy through various technologies like solar panels. However, there are also other important energy resources like wind, hydroelectric, and geothermal energy sources that can contribute to a diverse and sustainable energy mix.

Does the atmosphere absorb a lot of energy directly from the sun?

No, most of the sun's energy that reaches the Earth's atmosphere is absorbed by the surface of the Earth. The atmosphere does absorb some of the energy but it is relatively small compared to the energy absorbed by the Earth's surface.

Can solar energy can be used up?

If I am reading the question correctly, the answer would be no. Solar Energy is a renewable energy source, meaning that there is an endless surplus of it. The only way that solar energy would be finished is if the sun were to one day just disappear, but rest assured that if that were to ever happen we would all be dead as well. So, no, solar energy, to this day, can not be used up.

What is the difference between daily energy requirement and basal energy requirement?

Basal energy requirement refers to the amount of energy needed to maintain basic physiological functions at rest, while daily energy requirement includes the additional energy needed for physical activity and other daily tasks. Basal energy requirement makes up the majority of daily energy expenditure, with physical activity level influencing the total daily energy requirement.

Are changes in solar energy that create day and night the result of earth's rotation?

Say for example, you are currently at point A on the surface of the earth. As the earth rotates, point A will eventually be on the side of the earth facing away from the sun, resulting in darkness. It always spins in the same direction, hence the sun always rises in the East and sets in the West. The reason we have moonlight is because light is reflected off of the moon.

In short, if I've understood your question correctly, yes, the changes in light are due to the rotation of the earth.

What does the word solar mean in the word solar system?

In the term "solar system, solar means related to the Sun. It describes the system of celestial bodie like planets, moons, and asteroids that orbit around the Sun. So, the "solar" in solar system emphasizes that these objects are all connected to and influenced by the Sun's gravitational pull.

Is the density of water more than the density of hydrogen sulfide?

It is substantially more when water is a liquid (it weighs 1000 g/cubic dm) as hydrogen sulfide (H2S) is a gas weighing 1.363 g/cubic dm. However, a molecule of hydrogen sulfide weighs more than a molecule of water (H2O).

What is the central portion of a star called that produces energy through nuclear reactions?

The central portion of a star where nuclear reactions occur is called the core. In the core, hydrogen atoms fuse together to form helium, releasing energy in the process. This energy production through nuclear fusion is what allows stars to shine and emit light and heat.

Why is sound energy kinetic energy?

Sound is the movement of a medium at frequencies we can hear. As it always involves movement of a medium, either a solid, liquid or gas to be transmitted it will involve kinetic energy at times.

Note that kinetic energy is the energy stored in a moving mass. Sound waves carry energy with a combination of both kinetic and potential energy. There are two moments in every cycle where there is no movement and therefore no kinetic energy. These two points are at the upper and lower peaks of the wave.

What is the genesis of color?

Color is the result of the interaction between light, an object, and our eyes. When light strikes an object, the object absorbs certain wavelengths of light and reflects others, which our eyes perceive as color. This perception of color is a complex biological and psychological process that allows us to differentiate between different wavelengths of light.

Are fossils examples of organic matter and why?

Yes, fossils are examples of organic matter because they are the preserved remains or traces of once-living organisms. Fossils can include bones, shells, teeth, and other organic materials that have undergone a process of mineralization or replacement with inorganic materials to become stone-like structures.

How does the sun release tremendory amount of energy?

The sun releases a tremendous amount of energy through nuclear fusion in its core. This process involves hydrogen atoms fusing together to form helium, releasing vast amounts of energy in the form of light and heat. The energy produced in the sun's core is equivalent to millions of nuclear explosions happening every second.

What provides the energy to break the connection between actin and myosin?

ATP, of course.

When the myosin head extends towards the actin thin filament it has in it's active site ADP and P +. So, when the stroke is over the ADP and P+ fall out and are replaced by ATP, which immediately metabolizes to ADP and P +.

Can window awnings help save energy and cut down on electricity costs in the summer?

Yes, window awnings can help save energy and reduce electricity costs in the summer by shading windows from direct sunlight, which can lower indoor temperatures and decrease the need for air conditioning. The awnings can also help protect furnishings from sun damage and reduce glare.

What happens when pontential energy ins't completely converted to kinetic energy?

If potential energy is not completely converted to kinetic energy, some of the potential energy may be transformed into other forms of energy such as heat, sound, or light. This can occur due to factors like friction or inefficiencies in the system. As a result, the total mechanical energy of the system may not remain constant, and some energy may be lost to other forms.

What is the main energy source of the satellites?

Natural satellites (moons) dissipate energy that either originates in the body's hot

core, or else has been previously absorbed from solar (sun) radiation.

Artificial earth satellites typically operate on-board electronics with electric power

from solar panels excited by the sun. They also use propellant carried at launch for

station-keeping thrusters, and may also carry nuclear reactors when the load will

exceed the available solar energy flux.

What means solar sesyem?

The solar system consists of the sun and all the celestial objects that orbit around it, such as planets, moons, asteroids, and comets. It includes eight planets, with Earth being the third from the sun, and is located within the Milky Way galaxy.

Why is concave mirror useful as solar reflectors?

Concave mirrors are useful as solar reflectors because they can focus sunlight onto a single point, resulting in high temperatures that can be used for generating electricity or heating. The curved shape of the concave mirror allows it to concentrate sunlight effectively, making it more efficient for harnessing solar energy compared to flat mirrors.

Which star gets its energy from its core?

A star gets its energy from nuclear fusion reactions that occur in its core. These reactions fuse lighter elements, such as hydrogen, into heavier elements, releasing energy in the process. This energy is what fuels a star's brightness and heat.

How much energy is transferred when one organism consumes another?

Because of the second law of thermodynamics, which states that each time energy is converted from one form to another, some of the energy is always degraded to a lower quality, more dispersed, less useful form and that no system can convert energy from one form to another useful form with 100% efficiency.

How long will solar power last for?

Solar energy will be available for the taking on Earth until the sun itself begins to run low

on fuel, and swells up to become a huge, cool giant ... a few billion years.

The human race on Earth will be gone long before that, so there's nothing to worry about.

How did you know that electricity can pass through the material?

Electricity can pass through a material if the material contains particles that are able to carry electric charge, such as electrons in metals. Materials that are good conductors of electricity have free electrons that can move easily in response to an electric field, allowing the flow of electric current. Conversely, materials that are poor conductors, such as insulators, do not have these free-moving charge carriers, so electricity cannot pass through them easily.

Which cell is the energy output of a star?

The energy output of a star comes from its core, where nuclear fusion reactions take place. During fusion, hydrogen atoms combine to form helium, releasing a tremendous amount of energy in the process.

Can ether generate energy?

Ether is a theoretical concept in physics and does not generate energy on its own. It is a postulated medium that was once thought to permeate all space and transmit electromagnetic waves, but its existence has been largely discounted by modern physics. Energy must come from a source such as sunlight, heat, or mechanical work.