Предмет: Физика, автор: Wjfhshf

Яка маса повітря у кімнаті об’ємом 75 м3? Густина повітря 1,29 кг/м3.

Ответы

Автор ответа: teacher1011

2

Відповідь:

96,75кг

Пояснення:

Дано:

V = 75м3

ρ = 1,29кг/м3

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

m - ?

$\displaystyle \rho=\frac{m}{V}\\\\m=\rho V=1.29\cdot 75=96.75\; kg$

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Математика, автор: lizushk11

Знайдіть кут при основі рівнобедреного трикутника якщо зовнішній кут при вершині трикутника дорівн 118°

2 года назад

Предмет: Английский язык, автор: gojcevsasa

диалог на тему мой день по английскому 8 кл. Даю 60б

2 года назад

Предмет: Математика, автор: zaharevichvika24

пж пж поможіть 53,7 :37,4
60, 3:35,3
9999:63
все треба поділити в стовпчик!!!!!! будьласка

2 года назад

Предмет: Математика, автор: Аноним

помогите пожалуйста

8 лет назад

Предмет: Английский язык, автор: klaravinnik

Помогите пожалуйста! Только те,кто знают английский,а не наугад . Даю 70 балов !

It was _____ (the/--/a) middle of the summer, and the days ____(be) long and hot.

School started earlier than ever before. It was the beginning of August and they

____(already/be) in school for a week. Tim ___(lie) in his bed every night listening to his

friends playing in the street. He wished he ____(can) be with them. He wanted to play

instead of being alone in his room. The fan in the window did not help much to cool the

air. He put the wet cloth on his forehead to cool the sweat from his face. Sometimes he

would sit up and look out of the window to watch the kids, but it made him

____(feel/feeling/to feel) sad when he did. The best part of summer was watching the

fireflies as they blinked in the night. He was usually asleep before he could see them, but

on Friday nights, he ____(allow) to stay up later. Then he could play outside, chase the

fireflies and put them ____(in/into/onto) a jar. He ____(hide) them under the sheets on

his bed and watched them glow. In the morning if they were still alive, he would let them

to ___(to go/go/going)

8 лет назад