An incompressible liquid inside a container discharges from a hole of area A1 << A, as shown below, where A is the cross-sectional area of the con- tainer. atmosphere 11 g-gk -h- liquid z=z,=h- z=0 At time t = 0, the water level is at z = 11/2h and the discharge hole is at z = h. The viscous effects are negligible and because the discharge speed is much larger than the speed of the free surface, the square of the free sur- face speed can be neglected compared with the square of the discharge speed whenever needed. I.Mass conservation requires discharge speed the be 4 dza II. The total discharge time for the water level to drop from 11/2h to h is 3Ah/2 A19/2. III. The resulting hydrostatic force on the bottom of the container decreases as function of t2 during discharge. Which of the above statements are true? O A) Only O B)Only O C)land O D) and I E)I, and
An incompressible liquid inside a container discharges from a hole of area A1 << A, as shown below, where A is the cross-sectional area of the con- tainer. atmosphere 11 g-gk -h- liquid z=z,=h- z=0 At time t = 0, the water level is at z = 11/2h and the discharge hole is at z = h. The viscous effects are negligible and because the discharge speed is much larger than the speed of the free surface, the square of the free sur- face speed can be neglected compared with the square of the discharge speed whenever needed. I.Mass conservation requires discharge speed the be 4 dza II. The total discharge time for the water level to drop from 11/2h to h is 3Ah/2 A19/2. III. The resulting hydrostatic force on the bottom of the container decreases as function of t2 during discharge. Which of the above statements are true? O A) Only O B)Only O C)land O D) and I E)I, and
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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![An incompressible liquid inside a container discharges from a hole of area
A1 << A, as shown below, where A is the cross-sectional area of the con-
tainer.
atmosphere
11
A
g=gk
liquid
z=z,=h-
z=0
At time t = 0, the water level is at z = 11/2h and the discharge hole is at
z = h. The viscous effects are negligible and because the discharge speed is
much larger than the speed of the free surface, the square of the free sur-
face speed can be neglected compared with the square of the discharge speed
whenever needed.
I.Mass conservation requires discharge speed the be 4 da
A1 dt'
II. The total discharge time for the water level to drop from 11/2h to h is
3Ah/2
A19/2.
III. The resulting hydrostatic force on the bottom of the container decreases
as function of t2 during discharge.
Which of the above statements are true?
O A) Only I
O Bj Only II
O C)l and ll
D) Il and II
E)I, Il and lI](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5203e10b-3ec2-4640-b542-3925f4e8c65f%2F5aedae82-a3e4-4121-ada3-8c11aa0fcf67%2Fixdd3jl_processed.jpeg&w=3840&q=75)
Transcribed Image Text:An incompressible liquid inside a container discharges from a hole of area
A1 << A, as shown below, where A is the cross-sectional area of the con-
tainer.
atmosphere
11
A
g=gk
liquid
z=z,=h-
z=0
At time t = 0, the water level is at z = 11/2h and the discharge hole is at
z = h. The viscous effects are negligible and because the discharge speed is
much larger than the speed of the free surface, the square of the free sur-
face speed can be neglected compared with the square of the discharge speed
whenever needed.
I.Mass conservation requires discharge speed the be 4 da
A1 dt'
II. The total discharge time for the water level to drop from 11/2h to h is
3Ah/2
A19/2.
III. The resulting hydrostatic force on the bottom of the container decreases
as function of t2 during discharge.
Which of the above statements are true?
O A) Only I
O Bj Only II
O C)l and ll
D) Il and II
E)I, Il and lI
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