electric current (the ampere), luminous intensity (the candela), and the amount of
substance (the mole). In our study of mechanics we shall be...
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In 1960, an international committee established a set of standards for length,
mass, and other basic quantities. The system established is an adaptation... -
physics
and our unit of mass is defined to be 1 kilogram, then that person is 75
times as massive as our basic unit.1 Whatever is -
we are to report the results of a measurement to someone who wishes to reproduce
this measurement, a standard must be defined. It would be meaningless...Leave a comment:
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STANDARDS OF LENGTH, MASS, AND TIME
The laws of physics are expressed in terms of basic quantities that require a clear definition.
In mechanics,... -
(1) numerous space missions and the landing of astronauts on the Moon,
(2) microcircuitry and high-speed computers, and (3) sophisticated imaging...Leave a comment:
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Scientists constantly work at improving our understanding of phenomena and
fundamental laws, and new discoveries are made every day. In many research...Leave a comment:
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about physics
traditional
concepts of space, time, and energy; quantum mechanics, which applies to
both the microscopic and...Leave a comment:
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A new era in physics, usually referred to as modern physics, began near the end
of the 19th century. Modern physics developed mainly because of...Leave a comment:
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