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What is E-commerce?

What is E-commerce? E-commerce (Electronic commerce or EC) is the buying and selling of goods and services or transmitting funds or data over an electronic network, primarily the internet. These business transactions occur either business to business, business to consumer, consumer to consumer, or consumer to business. This thesis is concerned with the impact of electronic commerce on international tax laws, specifically source-based taxation. Before looking specifically at the arguments and propositions to be advanced by the thesis, it is both instructive and necessary, to begin with, a discussion of what is meant by ‘electronic commerce’. Discussions relating to electronic commerce normally begin with a pronouncement that it represents a fundamental and revolutionary development in communications that is likely to dramatically change the way business is conducted. This is usually followed by highly variable, speculative, and often mind-numbing estimates of the expected growth of th

Efficiency

Efficiency

Efficiency:
The ratio of the amount of work we get from an engine given is its efficiency.

Effective Energy:
The energy that we get from an engine is its effective energy.

What do you mean by 70% efficiency of a pump?
70% efficiency of an engine means 100 J input of energy in the engine yields 70 J efficient energy and the rest of 30 J energy is wasted.


Secondary Physics


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