Bài 1 : Cho hệ như hình vẽ. Thanh AC = 160 cm đồng chất, tiết diện đều. Vật treo tại A có trọng lượng 80N. Tìm trọng lượng của vật phải treo tại B hoặc tại C để hệ cân bằng trong hai trường hợp:
a. Thanh nhẹ( bỏ qua trọng lượng thanh).
b. Thanh có trọng lượng 50N.
Continue the following sentences in a logical ways using both adverbs.
a My aunt fell off down the stairs the other day.
Fortunately ...
Obviously ...
b My dad's been on a strict diet for nearly a month now.
Unfortunately ...
Surprisingly ...
c I first met my wife at a party five years ago.
Immediately ...
Surprisingly ...
d When I first came to live here, I didn't know anybody.
Gradually ...
Eventually ...
e I spent an hour looking for the missing keys.
Eventually ...
Suddenly ...
f The room was in complete darkness.
Eventually ...
Suddenly ...
Continue the following sentences in a logical ways using both adverbs.
a My aunt fell off down the stairs the other day.
Fortunately ...
Obviously ...
b My dad's been on a strict diet for nearly a month now.
Unfortunately ...
Surprisingly ...
c I first met my wife at a party five years ago.
Immediately ...
Surprisingly ...
d When I first came to live here, I didn't know anybody.
Gradually ...
Eventually ...
e I spent an hour looking for the missing keys.
Eventually ...
Suddenly ...
f The room was in complete darkness.
Eventually ...
Suddenly ...
Continue the following sentences in a logical ways using both adverbs.
a My aunt fell off down the stairs the other day.
Fortunately ...
Obviously ...
b My dad's been on a strict diet for nearly a month now.
Unfortunately ...
Surprisingly ...
c I first met my wife at a party five years ago.
Immediately ...
Surprisingly ...
d When I first came to live here, I didn't know anybody.
Gradually ...
Eventually ...
e I spent an hour looking for the missing keys.
Eventually ...
Suddenly ...
f The room was in complete darkness.
Eventually ...
Suddenly ...