1. In physics, there are seven fundamental physical quantities (which are measured in base units, or fundamental physical units): length, mass, time, electric current, temperature, amount of a substance, and luminous intensity.
2. This page explains the two most common systems of measurement: the metric system, used widely in Europe and most of the rest of the world, and the Imperial or British system, a form of which is now chiefly used in the USA.
3. At this time, only three countries—Burma, Liberia, and the US—have not adopted the International System of Units (SI, or metric system) as their official system of weights and measures." We should point out that even these three countries do use elements of the metric system
4. Imperial units
units of measurement of the British Imperial System, the traditional system of weights and measures used officially in Great Britain from 1824 until the adoption of the metric system beginning in 1965. The United States Customary System of weights and measures is derived from the British Imperial System.
5. Decimal fractions were first developed and used by the Chinese in the end of 4th century BCE, and then spread to the Middle East and from there to Europe. The written Chinese decimal fractions were non-positional.
6. In the metric system, the basic unit of length is the meter. A meter is slightly larger than a yardstick, or just over three feet. The basic metric unit of mass is the gram.
9. Student Answers. hazie123 | Student. The unit of mass is the kilogram (kg), but commonly, when we measure something in kilograms, we are measuring the force of gravity on that mass, which should be measured in newtons (N), (a measure of force).
Прости, на 7,8,10,11,12 ответов не знаю :(
1.Choose the correct item. This part of Ukraine has an abundance of lush green .
A vegetation B farmland C wildlife D habitat
2. In fact, all of us need to the way we live, because if we as we are now, our our problems will increase.
A save/let B improve/ remain C prevent/ change D destroy/ protect
3. The conference on the environmental issues at the moment.
А plans B is planning C is being planned D is been planning
4. The telescope has allowed astronomers to make about the Galaxy.
A discovery B Science C invention D Technology
5.Find correct word to fill the gap: He said that at sunset he ___ be waiting for you.
A will B was C am D would
Объяснение:
I think it's OK