Предмет: Физика, автор: prokopivnukdasa

Дівчина, вага якої 500 Н, запізнюючись на урок, піднімається сходовим прольотом заввишки в 3 м за 2,5 с. Яку потужність вона при цьому розвиває? *

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Автор ответа: morgonuktania

4

Ответ:3 кВт

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Most people
use money every day. It is so common they many people rarely think about why
money is important and what gives it value. In general, money is any item that
is widely accepted as payment for products. It is something people see and use
almost every day. Though money is commonplace, its forms and functions are
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In most
modern economies money serves several functions. As a means of exchange money
is used to trade for goods and services. Less complex societies often do not
use money at all. They simply barter, or trade, one product for another. Two
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complex a country’s economy, the harder it is to use a system of trading one
good for another. Money is the answer to that problem.

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of value people use money to save their wealth for the future. Storing goods is
not so easy as storing money. Many goods, such as food, spoil quickly. Other,
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