Предмет: Физика, автор: svathamaniuk

Визначте питомий опір провідника, якщо його довжина 1,2 м, площа поперечного перерізу 0,4 мм2, а опір 1,2 Ом.

Ответы

Автор ответа: zinovicgrigorij

Ответ: 0,4 Ом*мм²/м

Объяснение:

Дано:

l=1,2м

S=0,4мм²

R=1,2 Ом

--------------

ρ-?

R=ρl/S

ρ=RS/l=1,2*0,4/1,2=0,4 Ом*мм²/м

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Русский язык, автор: комя1

на конце имён существительных какого склонения всегда пишется ь

1 год назад

Предмет: Окружающий мир, автор: abamir64

План описание реки
1.название
2.где находится исток реки
3.какое течение : быстрое или медленное
4 .притоки
5.куда впадает река
6.как река изменяется в разные времена года
7.растения и животные реки
8.использование реки человеком
9.как люди влияют на реку
10.Что люди делают для охраны реки

1 год назад

Предмет: Русский язык, автор: Аноним

197 упр и 198 срочно пожалустаа

1 год назад

Предмет: Английский язык, автор: dsfhdiv

ПЕРЕВЕДИТЕ ПОЖАЛУЙСТА (((((((
1. By the Constitution of 1787 (and the amendments to it) the government of the USA is composed of three
branches: the executive one, the legislative one and the judicial one. 2.The highest executive power in the United States is vested in the President of the United State, who is elected for a term of four(4) years by electors of each state. The Presidential election is held every 4 years in November. The President of the USA must be a native-born citizen, resident in the country for fourteen years and at least thirty-five(35) years old. 3.The President is to carry out the programmes of the Government, to recommend much of the legislation to the Congress. He is to appoint Federal Judges, ambassadors to other countries and heads of various government departments, called secretaries.
4. The legislative power belongs to the Congress of the United States consisting of two chambers: the Senate and the House of Representatives. The Senate is composed of two members from each state and elected for a term of 6 years, one third being elected every two years. The number of representatives elected in each State depends on the number of people in each particular State.
5. In order to become a law all bills and resolutions must pass both Houses and must be signed by the President.
6.An important role in the American legislation is played by so-called "lobbyists". They are often more influential than
congressmen themselves.
7.The Supreme Court is the highest judicial organ of the United States and the head of the judicial branch of
power. The Supreme Court consists of the Chief Justice of the USA and some Associate Justices. 8.The United States is divided into eleven judicial circuits, each one being served with a Federal Court of Appeals. There are about ninety dis-
trict courts in different parts of the United States. The district courts are the lowest ones in the Federal court system.
Most of the criminal and civil cases are tried by these courts.
9. Each state has a constitution similar to the Constitution of the entire nation, all the power in each state being
divided into executive, legislative and judicial. The head of each state is the governor of the state. 10.Each state has its own system of courts similar to that of the Federal courts.

7 лет назад

Предмет: Другие предметы, автор: vasilevkadk

плоские вершины крымских гор называються?

7 лет назад