Efficiency is usually a measurement of the input versus the output. But, it also has an element of comparing to all the competing technologies.
Is a solar panel that captures 19% of the sun's energy and converts it to electricity efficient? (See Sunpower Solar). Compared to the competitors that capture about 10%, it is very efficient. Yet, compared to the space technology panels that get about 40% efficiency (Emcore, Boeing), it still has some work to do.
But, with a solar panel, efficiency in many senses is just a measurement of how much space it will take up on the rooftop.
With a hot water heater, efficiency might be a measurement of how much electricity or gas you need to buy. And that is something that is easy to measure an input vs output, assuming we believe the estimates.
You can call something that makes something move a "force" or a "mover," while something that causes it to stop can be referred to as a "brake" or a "stopper."
To possess or cling onto something.
Gripping or clasping something tightly is commonly referred to as "holding something tight."
Energy is something a system has. It is a property of a system that can be transferred or transformed but is not actively doing something in and of itself. The system uses this energy to perform work or create changes within itself or its surroundings.
An obstacle or impediment.
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Yes.
make it
Honda Civic :D
They are the same thing.
allows for quick, efficent communication
Anytime you are looking for a feul efficent car or SUV budget will play a large role. For instance the Lexus RX 450h gets 31mpg highway. However if you are looking for something a little bit more inexpensive, the Toyota RAV4 gets 29. You can look at the consumer reports and compare all different vehicle based on gas milage.
The Mazda Miata is very fuel efficent.
Comolexity Not efficent big data
Shortcut keys
it is a home that is powered by energy resources
mobil oil clean and efficent