Mohlala oa sekepe se hoketsoeng phaepheng e bōpehileng joaloka U

Mehlala e 4 ea Liphaephe tse bōpehileng joaloka U Likepe tse hokahaneng

1. Methapo e 'meli ea A le B e tletse metsi a nang le bongata bo fapaneng, joalo ka ha ho bontšitsoe setšoantšong. Haeba khatello e ka tlase ho A e lekana le 4/5 tekanan botlaaseng ba B le bongata mokelikeli A = 1000 kg m^-3 , joale boima ba mokelikeli ho B ke...

A. 1250 kg m^-3

B. 2500 kg m^-3

C. 3000 kg m^-3

D. 4000 kg m^-3

E. 5000 kg m^-3

Puisano

Hoa tsebahala hore:

Khatello botlaaseng ba A (P_A) = 4/5 khatello e ka makhetlo a 4/5 botlaaseng ba B (4/5 P_B)

Bongata ba mokelikeli A (ρ_A) = 1000 kg m^-3

O botsitse: Bongata ba mokelikeli B (ρ_B)

Karabo:

Foromo ea khatello ea hydrostatic ea mokelikeli A ke P_A = ρ_A gh_A

RForomo ea khatello ea hydrostatic ea mokelikeli B ke P_B = ρ_B gh_B

Khatello botlaaseng ba A = 4/5 makhetlo a khatello botlaaseng ba B:

Bophahamo ba mokelikeli ho A = bophahamo ba mokelikeli ho B e le hore h_A le h_B e tlositsoe ho tsoa ho equation.

Ho potlaka ho bakoang ke matla a khoheli g ho tšoana kahoo ho tlosoa ho equation.

5 (ρ_A) = 4 (ρ_B)

5 (1000) = 4 (ρ_B)

ρ_B = 5000 / 4

ρ_B = 1250

Boima ba mokelikeli ho B ke 1250 kg m^-3

Karabo e nepahetseng ke A.

2. U-tube e tletseka maro a mabeli a fapaneng joalo ka ha ho bontšitsoe setšoantšong se latelang! Haeba bongata ba ρ₁ = 0,8 g.cm^-3, ρ₂ = 1 g.cm^-3, le h₁ = 10 cm, ebe bophahamo ke h₂ ke….

A. 5 cm

B. 6 cm

Bolelele ba lisenthimithara tse 7

D. 8 cm

E. 10 cm

Puisano

Hoa tsebahala hore:

Botenya 1 = 0,8 g.cm^-3

Botenya 2 = 1 g.cm^-3

Bolelele 1 = 10 cm

O botsitse: Bophahamo ba 2

Karabo:

Karabo e nepahetseng ke D.

3. Chubu ea U e tletse ka maro a mabeli a fapaneng joalo ka ha ho bontšitsoe setšoantšong se latelang! Haeba bongata ba p₁ = 0,8 g.cm^-3, leq₂ = 1 g.cm^-3, le h₁ = 10 cm, ebe bophahamo ke h₂ ke….

A. 5 cm
B. 6 cm
Bolelele ba lisenthimithara tse 7
D. 8 cm
E. 10 cm

Puisano
Hoa tsebahala hore:
Botenya 1 = 0,8 g.cm^-3
Botenya 2 = 1 g.cm^-3
Bolelele 1 = 10 cm
E botsitsoe: Bolelele ba 2
Karabo:
Karabo e nepahetseng ke D.

4. Ela hloko setšoantšo se latelang:
Qalong tube ea U e tlatsoa ka metsi a nang le boima ba 1000 kg.m^-3 Ebe oli ea ho pheha e tšeloa ka har'a e 'ngoe ea liphaephe e le hore boemo bo tsitsitseng bo shebahale joaloka setšoantšo. Haeba bophahamo ba kholomo ea oli e le 8 cm 'me kholomo ea metsi e le 5 cm, boima ba oli ea ho pheha ke….

A. 520 kg.m^-3
B. 525 kg.m^-3
C. 600 kg.m^-3
D. 625 kg.m^-3
E. 720 kg.m^-3

Puisano
Hoa tsebahala hore:
Boima ba metsi = 1000 kg.m^-3
Bophahamo ba metsi = 5 cm
Bolelele ba oli ea ho pheha = 8 cm
Potso: Botenya ba oli ea ho pheha
Karabo:
Karabo e nepahetseng ke D.

Mohloli oa lipotso:

Lipotso tsa Fisiks tsa Tlhahlobo ea Naha bakeng sa Sekolo se Phahameng sa Thuto e Phahameng/Sekolo se Phahameng sa Mosebetsi