Water flows through a horizontal tube of variable cross section as shown in the figure. The area of cross section at A and B are 4 mm2 and 2 mm2 respectively. If 1 cc of water enters per second through A , find (a) the speed of water at A (b) the speed of water at B and (c) the pressure difference PA - PB
Suppose the tube in the previous problem is kept vertical with A upward but the other conditions remain the same. The separation between the cross sections at A and B is 15/16 cm. Find (a) the speed of water at A (b) the speed of water at B (c) the pressure difference PA - PB. . Take g = 10 m s-2
Suppose the tube in the previous problem is kept vertical with B upward . Water enters through B at the rate of 1 cm3 s-1 . Find (a) the speed of water at A (b) the speed of water at B (c) the pressure difference PA - PB. Note that t
he speed decreases as the water falls down
Water flows through a horizontal tube of variable cross section as shown in the figure. The area of cross section at A and B are 4 mm2 and 2 mm2 respectively. If 1 cc of water enters per second through A , find (a) the speed of water at A (b) the speed of water at B and (c) the pressure difference PA - PB
Suppose the tube in the previous problem is kept vertical with A upward but the other conditions remain the same. The separation between the cross sections at A and B is 15/16 cm. Find (a) the speed of water at A (b) the speed of water at B (c) the pressure difference PA - PB. . Take g = 10 m s-2
Suppose the tube in the previous problem is kept vertical with B upward . Water enters through B at the rate of 1 cm3 s-1 . Find (a) the speed of water at A (b) the speed of water at B (c) the pressure difference PA - PB. Note that the speed decreases as the water falls down
Asked by Paresh
| 2nd Jan, 2016,
08:51: PM
If the tube is kept vertical with B at the top, then the speed of water entering the tube will be 0.5 m/s and the speed of water at A will be 0.25 m/s.
The pressure difference between the ends remains zero.

Answered by Yashvanti Jain
| 5th Jan, 2016,
11:59: AM
Concept Videos
- what is density?
- When a piece of cork is put into the water it starts floating on the surface of water due to the upward buoyant force from water.
- you are provided with a piece of rock and common laboratory equipments.how will you proceed to find its density.
- what are fluids?
- solution
- What is the unit of density?
- What happens if the bouyant force of liquid is equal to or greater than or less than the solid object which is to be immersed into the liquid
- what is the relationship between boyant force and displaced water
- pressure at certain depth in river water is p1.,same depth in sea water is p2.which of following is correct? a)p1=p2 b)p1>p2 c)p1<p2 d)p1-p2=atmospheric pressure
- why is it easier for a person to swim in sea water than in fresh water?
Kindly Sign up for a personalised experience
- Ask Study Doubts
- Sample Papers
- Past Year Papers
- Textbook Solutions
Sign Up
Verify mobile number
Enter the OTP sent to your number
Change