posted by .

A fresh water pond that is 14.7 m deep is contained on one side by a cliff. The water has eroded a nearly horizontal "tube" through a bed of limestone, which allows the water to emerge on the other side of the cliff. If the "tube" has a diameter of 4.07 cm, and is located 6.0 m below the surface of the pond, what is the frictional force between the "tube" wall and a rock that is blocking the exit?

b) When the rock is removed, what volume of water flows out of the "tube" in 2.90 hr?

  • physics -

    for part a)


    where d is the distance of the tube beneath the surface of the water, and area is the cross sectional area of the tube, and rho the density of water.

    make sure to convert the units of the diameter into cm before subbing it into the equation!

  • physics -


Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics

    A plastic tube allows a flow of 15.5 cm3 /s of water through it. How long will it take to fill a 206 cm 3 bottle with water
  2. Science

    Which of the following contain water that is easily available for human use?
  3. Physics

    it didn't let me put the link to image.. A tube of radius 5 cm is connected to tube of radius 1 cm as shown above. Water is forced through the tube at a rate of 10 liters/min. The pressure in the 5 cm tube is 1×105 Pa. The density …
  4. physics

    Four tubes are set up in the lab at sea level as shown by the figure. The letter under each tube corresponds the question with the same letter. 1 atm = 101300 Pa = 101300 N/m2 ρwater = 1000 kg/m3 (a) What is the pressure pushing …
  5. physics

    a)a box having mass of 500kg is placed on a horizontal surface.find the pressure exerted on the surface?
  6. physics,plz.....give me answer as soon as possible

    a pond of water filled with water apto 60m. 1)write formulato find the pressure of water exerted on the base of pond. 2)calculate the pressure exerted by the water on the base of pond?
  7. physics

    (c) Tube (c) is again filled with water. A1 and A2 are the same as in part (b). Two pistons apply different forces to the water in the tube so that the water in the right side of the tube is a height h = 0.43m above the height of the …
  8. physics

    2) Tube (b) is also filled with water, A1 is 0.05m2 and A2 is 0.08m2 Two pistons are placed in both ends of the tube and forces, F1 and F2 are exerted on the pistons so that they remain at the same height. If F1 = 20N what is F2?
  9. Physics

    Which of the following is a direct result of the equation of continuity?
  10. physics

    A person is running from a cliff into a pond. The cliff has a height of 10.0m above the water but it is not strictly vertical, it slopes down to the pond at an angle of 40 degrees with respect to the vertical. What is the minimum speed …

More Similar Questions