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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

What are disadvantages of Geothermal energy?

The disadvantages of geothermal energy are that after a while the heat below the ground may become dissipated. The power plant may have to stand idle for some time to let the heat build up again underground.

What is nature's thermometer?

Crickets are called a natural thermometers. These crickets are one of nature's more interesting insects, partly because of their musical ability. In England, the chirping or singing of a cricket was once considered to be a sign of good luck.One of the interesting facts about crickets is that their activity is dependent upon the temperature.As a result of this, they can be thought of as "natural" thermometers. The rate of a cricket's chirp increases as the temperature increases and depends on the type of cricket. So if you know the right formula and the type of cricket you hear chirping, you can estimate the temperature by counting the chirps. Changes in humidity and different crickets of the same type also produce variations in a cricket's chirping rate. The dominant factor, however, is temperature, so formulas relating temperature to the number of chirps are fairly accurate.

  1. Start your stopwatch and start counting the number of chirps the cricket makes in 15 seconds
  2. Write down the number of chirps that you get
  3. Add that number to 40
  4. That number should be pretty close to the actual temperature!

Get a thermometer and check to see if this is true.

Headphones useful and wasted energy?

Headphones can be useful in minimizing external noise and distractions, allowing for better focus and concentration. However, if used excessively or at high volumes, headphones can lead to wasted energy in the form of electricity consumption. It is important to use headphones mindfully and efficiently to maximize their benefits while minimizing unnecessary energy usage.

What transmits heat light sound and electric charges?

Materials like metals are good conductors of heat, electricity, and sound due to the movement of free electrons within their structures. Light can be transmitted through materials like glass and air due to their transparent properties, allowing light to pass through them relatively easily. Sound can be transmitted through materials that allow for the vibration of molecules, such as air, water, and solids.

What is the electrical conductivity of gasoline?

First, it depends on the specific gasoline blend, the amount of ethanol blended into it, and the temperature of the fuel.

In general the following values are used for electrical conductivity:

Gasoline: 1x10-14 mho/cm (without any ethanol blended in is )

Ethanol (95% purity): 10-9 mho/cm

For reference the electrical conductivity of Diesel fuel is 1x10-12 mho/cm.

In the United States ethanol is currently blended with gasoline at up to 10 volume percent.

Relevant units:

mho= 1/ohm (reciprical ohms)

S= Siemen

1 S = 1 mho

Is a hexagon a concave?

If it's a regular hexagon, it can't be concave. If it's an irregular hexagon,

then it can be concave if it wants to, but it doesn't have to be.

How do you differentiate the betz limit with respect to v2?

The Betz limit represents the maximum energy obtainable from a flowing fluid. This is a new topic for me, but Wikipedia has an entry under Betz' Law (don't forget the apostrophe after Betz) which may help you. This is a rather specialised topic and if Wikipedia does not give what you want you will probably have to consult a textbook on the subject.

What is the fomulae for energy?

There are different formulae for calculating different kinds of energy.

There are different formulae for calculating different kinds of energy.

There are different formulae for calculating different kinds of energy.

There are different formulae for calculating different kinds of energy.

How much more energy do average Americans use than the world average?

The results will probably vary a bit, depending on who you ask, and how the calculations are done.The Wikipedia article on "World energy consumption" list the following per-capita use of energy:

USA: 87,216 kWh (per person, for the year 2008), and

World: 21,283 kWh (per person, for the same year).

So, about 4 times the global average.

What is the difference between a form of energy and sound energy?

Truly there can be no diffence in either for they still are a pure form of energy.

What is the kinetic energy of 3000 lb car traveling at 60 mph?

We need to convert miles per hour into meters per second as this formula,

KE = 1/2mV^2, needs to use meters per second.

40 mph (1609 meters/ 1 mile)(1 hour/3600 sec.)

= 17.877 meters per sec.

KE = (1500 kg)(17.877 m/s)^2

= 4.8 X 10^5 Joules of kinetic energy

How much of the energy stored in the corn gets passed on to you in burgers?

Only a fraction of the energy stored in corn is passed on to you through burgers. Corn is used to feed livestock that are then processed into burgers, and there are energy losses at each stage of production due to inefficiencies in the food chain.

What are some ways of dealing with these potential problems with a top-down budget?

To address potential problems with a top-down budget, organizations can enhance communication and transparency by involving lower-level managers in the budgeting process, ensuring their insights and needs are considered. Implementing a flexible budgeting approach can also help accommodate unexpected changes and allow for adjustments throughout the fiscal period. Additionally, regular monitoring and feedback mechanisms can be established to assess performance against the budget, enabling timely corrective actions when necessary.

What is the role of regulators and similar bodies with regards to sustainability and the environmentin the energy sector?

Regulators and similar bodies play a crucial role in promoting sustainability and environmental protection in the energy sector by establishing guidelines, standards, and policies that govern energy production and consumption. They enforce regulations aimed at reducing greenhouse gas emissions, encouraging the use of renewable energy sources, and ensuring compliance with environmental laws. Additionally, these bodies facilitate research, provide incentives for sustainable practices, and monitor industry performance to promote accountability and transparency in achieving sustainability goals. Through their actions, they help balance economic growth with environmental stewardship.

How can you tell a high diver has gravitational potential energy?

If an object - in this case the high diver - is above the reference level, then its gravitational potential energy will be positive.Note that the reference level is arbitrary, but quite often, the ground level is chosen for calculations of gravitational potential energy.

What is the original source of Knowledge makes a bloody entrance?

The phrase "Knowledge makes a bloody entrance" is a line from William Shakespeare's play "Titus Andronicus." In this context, it refers to the idea that gaining knowledge or information can sometimes come at a cost or through a violent or disturbing means. Shakespeare often used vivid and dramatic language to convey complex themes and ideas in his works.

What are some examples of MicroWaves?

Oh, dude, like microwaves? Easy peasy. So, you've got your standard kitchen appliance that heats up your leftover pizza, then there are the electromagnetic waves used for communication like Wi-Fi and cell phones, and let's not forget about those tiny waves in particle physics that help us understand the universe. So, yeah, microwaves are everywhere, man.

7 Give examples of a conductor and an insulator?

If we speak in terms of electrical conductivity, some good insulators are ceramics, plastics, rubber and glass. Conductors are, on the other hand, metals in general: copper, silver, gold, but there are some good conductors that are not metals, like graphite and some salt solutions.

What three diffrent ways in which energy can be stored as strain energy?

  1. Elastic deformation of materials, such as stretching a spring or compressing a rubber band, stores energy as strain.
  2. Deformation of a solid material, like bending a beam or twisting a shaft, results in strain energy being stored in the material.
  3. Straining a material beyond its elastic limit, causing permanent deformation, can also store energy as strain in the form of residual stresses.

What are some non examples of light energy?

Nonexamples of heat include anything that doesn't involve heat such as cold water, Air conditioners, etc.

Electric fan parts and functions?

Parts of the Electric Fan

· Front Guard. It is a protective metal mesh wire used to prevent the fan

blade from any physical contact with foreign objects.

· Power Controller. It is a circuit that controls the amount of power supplied

to the motor.

· Sensor. It is the input receiver that detects input signal coming

from remote control.

· Manual Control. It is a push button switch that controls manually

operation of the electric fan.

· Non-polarized Capacitor. A low reactance non-polar capacitor connected in

series with the start winding of an electric fan.

· Timer. It is used to switch on or off automatically with

predetermined time.

· Comparator. It is a processing circuit that accepts the input signal

coming from remote control, manual switch or timer switch. This circuit provides the triggering voltage to the power controller.

· AC Motor. It is rotating electric machine which changes applied

electrical energy or power into mechanical output energy or power.

· AC Plug. It is a connector intended for connecting to the main

source 220 V.