Предмет: Физика, автор: sasha44333

Из шахты глубиной 600 м поднимают клеть с шахты.Масса клети 1.5 тонн.Найти работу.

Ответы

Автор ответа: Apatrid

0

А=mgh=1500 кг * 10 м/с² * 600м=9000000Дж=9МДж

Предыдущий вопрос

Следующий вопрос

Интересные вопросы

Предмет: Математика, автор: Аноним

9/17+6/17-11/17 памагите

6 лет назад

Предмет: Английский язык, автор: angelina37656785675

Task 3 read the text,answer the questions and retell the text (3)
The life of Amelia Earhart
Amelia Mary Earhart was born on 24th July 1897, in Kansas, USA. She lived with her parents, Edwin and Amy, and her younger sister Muriel. Amelia saw her first plane at the age of ten. At that time, she wasn`t interested in it at all, but later in life she became world-famous for flying planes.
Amelia graduated from high school in 1915, and soon after graduating started a finishing school for girls. However, Amelia left in the middle of her final year to work as a nurse at a military hospital. Here she helped many injured pilots, and became interested in planes when she saw them flying. After the war, she had a number of jobs. These helped her pay for flying lessons. She had her first lesson in January, 1921 and in six months saved enough money to buy her first plane.
Amelia broke many flying records in her life. In 1922 she set a world record for women`s flying with a new height of over 425 metres. In 1928 she became the first woman to fly across the Atlantic Ocean. In 1930 she set a world record for women`s flying with a new speed of 291 km per hour In 1932 she became the first woman to fly solo across the Atlantic and in 1935 she became the first woman to fly solo across the Pacific Ocean.
Amelia wanted to be the first woman to fly all the way around the world, but this was to be her last flight. She started her round-the-world flight in March 1937, but she never finished it. Near the end of the flight , she needed to land on a very small island in the Pacific Ocean, but she couldn`t find it. Amelia`s plane was never found and even today nobody knows what happened to her.

1.Who did Amelia help at the military hospital?
2.When did she buy her first plane?
3.When did Amelia start her flight around the world?
4.What happened to Amelia on her last flight?

6 лет назад

Предмет: Другие предметы, автор: arailymcatbay

у кого есть ответын пж помогите

6 лет назад

Предмет: Математика, автор: ZlataDyakova

как прочитать числа 3048504325 , 24000670001, 300100234129 срочнооо

9 лет назад

Предмет: Физика, автор: opanna

деревянный брусок скользит по горизонтальной деревянной доске затем его массу увеличивают положив сверху груз, как при этом меняется сила тяжести, сила трения и коэфициент трения

9 лет назад