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What items transforms 100 percent of the energy it receives into useful energy?
Wiki User
∙ 13y ago
Nothing or anything that converts energy is 100% efficient because as one form of energy is converted into another form, some energy is lost in that of heat, sound or other factors. The most efficient form of energy is the fuel cell as it converts chemical energy in electrical energy directly but still it's not 100% efficient. A2. I think that an electric convector heater would be 100% efficient, as it has no moving parts to lose energy through friction, all the electric energy absorbed in the device is emitted as thermal energy.
Wiki User
∙ 13y ago
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What is the effiency of a motor that converts100j of electrical energy into 70j of useful kinetic energy?
70 percent
How does a windmill store energy?
It isn't meant to store energy. It simply transforms the wind energy into other forms of useful energy. Of course, it may briefly have some rotational (i.e. kinetic) energy stored, but that won't last long.
Is it always easy to collect wasted energy and use it?
Once the energy is wasted, you can't convert it back to useful energy.Once the energy is wasted, you can't convert it back to useful energy.Once the energy is wasted, you can't convert it back to useful energy.Once the energy is wasted, you can't convert it back to useful energy.
What is the efficiency of a machine that requires 100 joules of input energy to do 35 joules of useful work?
The machine efficiency is 35 percent (35/100).
What w is energy that is not useful?
Waste energy.
Where does energy go after its been used?
After energy has been used, the energy transforms to another type of energy. This energy is obviously not usable. This useless energy then collects in the sky to form more useful energies.
How is energy useful in the classroom?
The percent of the wind power
What is the effiency of a motor that converts100j of electrical energy into 70j of useful kinetic energy?
70 percent
How does a windmill store energy?
It isn't meant to store energy. It simply transforms the wind energy into other forms of useful energy. Of course, it may briefly have some rotational (i.e. kinetic) energy stored, but that won't last long.
Which law of thermodynamics applies to percent of harvested energy?
The 2nd law of thermodynamics can yield predictions on the maximum efficiency of a process that seeks to extract useful energy. An example would be the Carnot cycle which gives the maximum percent of energy that can be harvested and turned into useful work as heat moves from a heat source to a heat sink.
What do you understand by energy flows in a one way direction but water follows in a cycle pathway in the living world?
Energy is continuously being degraded - converted from useful energy to less useful energy. We get our energy from the Sun, which burns its nuclear fuel (hydrogen), and radiates the energy into space. The energy Earth receives will again be radiated into space, sooner or later. From there it gets diluted; most of it won't ever return to the Sun.
How is ozone can be harmful or useful when it absorbs ultraviolet rays and changes into normal oxygen?
Ozone is useful. The oxygen forms again transforms to form ozone.
How much useful energy does a gas boiler waste?
Probably about 25 percent of the heat of combustion goes up the stack
If electrical energy goes into a light bulb what useful energy comes out?
The useful energy that comes out is light energy. Heat energy is also produced but is not useful
Useful and non-useful energy transfers for coal?
Useful: Energy Light Sound Non-Useful: Electricity C02
Usefulness of nuclear energy related to atomic energy?
Nuclear energy provides about 20 percent of US electricity, so it is useful. Atomic energy is the same thing, but is now an obsolete term, we use nuclear energy as the description now.
How are Laplace transforms useful?
Some differential equations can become a simple algebra problem. Take the Laplace transforms, then just rearrange to isolate the transformed function, then look up the reverse transform to find the solution.
