Question

[Thiên Thảo]

Nguoi ta do day nuoc vao trong 1 cai binh chua nuoc voi chieu cao 1m . Nguoi ta ve them 1 diem A cach day 0,3m .

a, Tinh ap suat tac dung len day binh

b, Tinh ap suat tac dung len day binh cach A .

c, Khi ap suat tac dung len day binh giam di 1 nua , thi chieu cao luc do la bao nhieu .

Bai lam :

a, Ap suat tac dung len day binh la :

P=d.h=10000.1=10000 N/m2

b, Chieu cao cua nuoc tu diem A cach mat nuoc la :

1-0,3=0,7 m

Ap suat tac dung len day binh cach A 0,3 la :

P=d.h=10000.0,7=7000 N/m2

c, Ap suat tac dung len day binh giam 1 nua la :

P=10000/2=5000 N/m2

Chieu cao luc do la :

h=P/d=5000/10000=0,5 m

M.n coi thu bai mk dung k nha . Sai m.n sua lai zum mk . Mk k co y tick .

(Day la bai thi ***** cua lop mk)