Surface Tension and Capillarity 17) Estimate the height to which water will rise in a capillary tube of diameter 3 mm. use o = 0.0728 N/m and y = 9810 N/ m3 for water. 18) What is the value of the surface tension of a small drop of water 0.3mm in diameter which is in contact with air if the pressure within the droplet is 561 Pa? 19) Mercury makes an angle of 130° when in contact with clean glass. What distance will mercury depress in a vertical 2-cm diameter glass tube? Use o = 0.47 N/m.

Surface Tension and Capillarity 17) Estimate the height to which water will rise in a capillary tube of diameter 3 mm. use o = 0.0728 N/m and y = 9810 N/ m3 for water. 18) What is the value of the surface tension of a small drop of water 0.3mm in diameter which is in contact with air if the pressure within the droplet is 561 Pa? 19) Mercury makes an angle of 130° when in contact with clean glass. What distance will mercury depress in a vertical 2-cm diameter glass tube? Use o = 0.47 N/m.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Calculate the resistive force acting on the disk, with the error level not less than h4, according to the pressure distribution on a circular disk of 0.5 m diameter held against the air flow, given in the table below.
A hemispherical tank having a radius of 2.5 m is filled with water to a depth of 1.8 m. If a solid sphere having a diameter of 1.8 m is placed on the bowl, determine how high will the water rise on the bowl. A. 116 mm B. 166 mm C. 176 mm D. 171 mm
Estimate the height to which water will rise in a capillary tube of diameter 3 mm. o=0.0728 N/m and o=9810 N/m^3 for water. (Note theta=90 for water in clean tube.)
A vertical conduit is carrying oil (S = 0.95). A differential mercury manometer is tapped into the conduit atpoints A and B. Determine the difference in pressure between A and B when h = 3 in. What is thedifference in piezometric head between A and B?
9. The depth of flow of water at a section of a rectangular channel of width 2 m is 0.3 m. The discharge through the channel is 1.5 m3/s. Determine the height of hydraulic jump and loss of energy per kg of water.
An open cylindrical tank 800mm in diameter and 2000mm high contains water to a depth of 1.6m. It is rotated about its vertical axis at 13 rad/s. How many liters of water are spilled? Use density of water as 1000kg/m3 and specific weight as 9.81kN/m3
An orifice having an area of 0.0003 m² is located on the vertical side of a tank. The tank has a constant cross sectional area of 0.40 m². It takes 312 seconds to lower the head from 1.20 m to 0.60 m. Which of the following most nearly gives the value of coefficient of discharge?
A jet of water discharges into a 90-cm open cylindrical tank with a height of 1 m. The cross-sectionalarea of the jet is 0.0025 m2 where the velocity of water jet is 3 m/s. How many seconds is requiredto fully fill the tank? The following are given for the measurements of a 90-cm open cylindrical tank when a jet of water discharges. height= 1m velocity=3m/s Area=0.0025m2 Determine the time to fully fill the cylindrical tank.
Water enters a large rigid tank steadily at a rate of V . = 0.5 m3/s, and exits through a large rectangular opening through which the velocity changes linearly in the vertical direction from 4 m/s to 5 m/s. Knowing that the tank is full, determine the magnitude of the velocity through the circular opening at the top whose diameter is D = 15 cm.
Figure P8.19 shows a pipeline through which water flows at a rate of 0.06 m3/s. The pipe is 3000 m long, it has a diameter of 120 mm, and it is straight. If the friction factor for the pipe is 0.03 and the loss coefficient for the pipe entrance is 1.0, calculate H, the depth of the reservoir, given that the pipe exits to atmosphere.
. The head of water over an orifice of diameter 100 mm is 10 m. The water coming out from the orifice is collected in a circular tank of diameter 1,5 m. The rise of water level in this tank is 1.0m in 25 seconds. Also the coordinates of a point on the jet, measured from vena contracta are 4.30 m horizontal and 0.50 m vertical. Find the device coefficients.
Calculate the pressure differential of water across the surface of a spherical droplet of radius 200 nm at 20 °C.