дано T=88.9мин R=6.4*10^6m найти скорость

 Помогите плиз!!

From Wh-question about these sentences based on the words in blod (выделенные).

 Example: The miss their school friends in summer. - When do they miss their school friends?

1) There are two new pupils in our form. -

2) There'll be 20 British girls and boys in Barbara's class this year. -

3) Elizabeth likes her new textbooks. -

4) The girls are from Britain. - 

5)Mark invited me to England last year. - 

6) We were happy to get good marks in French because it's difficult subject. -

ПОЖАЛУСТА ПОМОГИТЕ стальной и пробковый шары имеют одинаковые радиусы . сравните силы тяжести ,дейсвует на них ЗАРАНИЕ СПАСИБО

пОМОГИТЕ РЕШИТЬ=)))))))))))) ПОЖАЛУЙСТА