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Water at 57°C is flowing in a 4 in. schedule 80 steel pipe. When the flow rate is 0.0174 m³/s, the estimatied pressure deep reading across the manometer is 9.3 x 10⁴ Pa. What size orifice should be used if the orifice coefficient is assumed to be 0.65?
Water is being transmitted from a large lake, 6 m deep, to a community water station 25 m below the location of the lake. Two pipes connected in series are used in between these two locations. The first pipe has a diameter of 2 in, a length of 15 m, and a friction coefficient of 0.005 while the the second pipe has a diameter of 1.5 in, a length of 20 m, an friction coefficient of 0.005. What is the pressure of water at the bottom of the lake? What is the flow rate at the discharge?
Direction. Show the solution for each of the problem below:
I. Consider Teflon, the polymer made from tetrafluoroethylene.
Draw a portion of the Teflon molecule.
Calculate the molar mass of a Teflon molecule that contains 5.0 x 104 CF2 units.
What are the mass percents of C and F in Teflon?
II. For alanine, Ka1 = 5.1 x 10 -3, Ka2 = 1.8 x 10 -10
a) Calculate the ratios [Z] / [] and [Z] / [] at pH = 10.50
b) Calculate the pH when [Z] = [] and when [Z] = [] if pH= - log []
Direction. Show the solution for each of the problem below:
I. Consider Teflon, the polymer made from tetrafluoroethylene.
Draw a portion of the Teflon molecule.
Calculate the molar mass of a Teflon molecule that contains 5.0 x 104 CF2 units.
What are the mass percents of C and F in Teflon?
II. For alanine, Ka1 = 5.1 x 10 -3, Ka2 = 1.8 x 10 -10
a) Calculate the ratios [Z] / [] and [Z] / [] at pH = 10.50
b) Calculate the pH when [Z] = [] and when [Z] = [] if pH= - log []
The positions, of a particle moving along a horizontal straight line is given by the equation s=6t² - 4, where s is in meter and t is the time in seconds. The particle is 4m to the right of the origin when t = 0.
A.1. Determine the displacement of the particle during the time interval from t = 2s to t = 4s.
A.2. Determine the velocity and acceleration of the particle when t = 4s.
a = 12t²t³ + t, Determine velocity equation and position equation
The magnitude of the linear acceleration of a point moving along a vertical path is given by the equation a = 6t - 24, where a is in m/s and t is in seconds. The acceleration is upward when t = 5s; The point is 4m below the origin when t = 0 and 23 m above the origin when t = 3 s.Determine:
B.1. The velocity when t = 3 sec
B.2. The displacement during the time interval from t = 0 tot = 4 s
B.3. The total distance travelled during the time interval from t = 0 tot = 4s
for the force system shown in figure (22), determine the resultant force (R) and the force (P). w=weight=200lb
Design an mod 7 synchronous counter using JK flip flop
(1)Find the total charge and the current flowing in a cylindrical conductor (solid wire)of length 1m
and radius 1mm, given that the density of the charge, n = 1029 carriers/m3
, and the charge carrier
velocity, u = 19.9
10-6 m/s.
#340153 on Dec 2023