Предмет: Другие предметы, автор: валерия12341

кто такой этнограф?????????

nastena7slastena: это человек который изучает народы мира

Ответы

Автор ответа: Квилл

этнограф - это часть исторической науки, изучающая народы-этносы и другие этнические образования, их происхождение (этногенез), состав, расселение, культурно-бытовые особенности, а также их материальную и духовную культуру.

Автор ответа: nastena7slastena

это человек который изучает народы мира

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Предмет: Английский язык, автор: mg1998

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Newton's analysis of motion is summarized in his famous "three laws of motion".
In his great work, the Principia (published in 1687), Newton readily acknowledged
his debt to Galileo. In fact, Newton's first law of motion is very close to Galileo's
conclusions. It states that:
Every body continues in its state of rest or of uniform speed in a straight
line unless acted on by a nonzero net force.
The tendency of a body to maintain its state of rest or of uniform motion in a
straight line is called inertia. As a result, Newton's first law is often called the law
of inertia.
Newton's first law does not hold in every reference frame. For example, if your
reference frame is fixed in an accelerating car, an object such as a cup resting on the
dashboard may begin to move toward you (it stayed at rest as long as the car's
velocity remained constant). The cup accelerated toward you but neither you nor
anything else exerted a force on it in that direction. In such an accelerating
reference frame, Newton's first law does not hold. Reference frames in which
Newton's first law does hold are called inertial reference frames (the law of inertia is
valid in them). For most purposes, we can usually assume that reference frames fixed
on Earth's rotation, but usually it is close enough.) Any reference frame that moves
with constant velocity (say, a car or an airplane) relative to an inertial frame is also
an inertial reference frame. Reference frames where the law of inertia does not
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