Бірінші кемеден екінші кемеге бір мезгілде ауамен ,сумен екі сигнал жіберілді. бірінші сигнал екіншісінен 2с кейін жетеді. дыбыс ауада 340 м/с ,ал суда 1480 м/с қпен таралса , кемелердің арақашықтығы қандай болады?

Зачем вам по столбиками. здесь просто нужно составить предложения: boys often run around in the classroom during the break. we often learn new words at the lesson girls sometimes draw funny pictures on the blackboard during the break boys usually talk loudly during the break we sometimes run and jump between the desks during the break we sometimes discuss different problems during the break teachers usually ask a lot of questions at the lesson teachers sometimes have a cup of tea or coffee during the break i sometimes read newspapers and wall newspapers during the break

We usually learn new words at the lesson i often ask a lot of questions at the lesson girls seldom run around in the classroom during the break boys sometimes talk loudly, run and jump between the desks during the break teachers usually discuss different problems at the lesson we seldom draw funny pictures on the blackboard during the break teachers sometimes have a cup of tea or coffee during the break girls often read newspapers and wall newspapers during the break