1.Determine how much water is required to dilute 20 liters of a solution that is 15% dye so that a 5% dye solution is obtained. 2. A pipe can fill a swimming pool in 15 hrs. If a second pipe is open, the two pipes together can fill the pool in 5 hrs. How long would it take the second pipe alone to fill the pool? 3. Two men living 39 km apart, leave their homes at the same time on bicycles and travel toward each other. If one man averages 2km/hr more than the other, and they meet in 1hr 30mins, what is each man’s average rate of cycling?

1.Determine how much water is required to dilute 20 liters of a solution that is 15% dye so that a 5% dye solution is obtained. 2. A pipe can fill a swimming pool in 15 hrs. If a second pipe is open, the two pipes together can fill the pool in 5 hrs. How long would it take the second pipe alone to fill the pool? 3. Two men living 39 km apart, leave their homes at the same time on bicycles and travel toward each other. If one man averages 2km/hr more than the other, and they meet in 1hr 30mins, what is each man’s average rate of cycling?

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

6- A water plant is designing disinfection process using ozone as a major disinfectant. Based on the test result, the following graph was generated. (ON/NJUI- y = 0.94x R² = 0.99 6 Time (min) where, NO = initial pathogen# per unit volume and N = final pathogen# per unit volume a) Using Chick's law, calculate contact time T (in minute) for 3 log inactivation of pathogen. 2 8 10 b) Plant should meet CT value for 3 log in activation of Giardia Cyst at pH 7.8 and 10° C. What is required ozone concentration in mg/L?
2. Families in a community in a developing country use large, 200.0 L drums to un-treated surface water. You are designing a device that is designed to dose the volume with a coagulant, stir to allow flocculation, then add chlorine tablets to disinfect the water. The water is 25 °C and initially contains 1.0E+09 particles per L. The initial particles can be assumed to be spherical, 15.0 micrometers in diameter, and with a density of 1.675 g/mL. a. If the drums have a diameter of 572 mm, how long will it take for the particles to completely settle without any coagulation or flocculation? (answer in seconds) You have determined that you can achieve complete destabilization of particles by achieving an ionic strength of 0.01 M or higher. If you use alum (Al2(SO4)3) as a coagulating agent, what mass of alum must be added per batch of 200 L? (answer in grams) How many joules of energy would be required to stir the drum at a mixing intensity of 150 s-' for 20 minutes? If the drum is stirred…
1. Based on the water filter activity, how would you design a water filter to clean the water you would be using at home? a. What pollutants would you need to filter out? b. What materials would you use to filter each kind of pollutant?
Given the following data, graph the data for the Poliomyelitis virus, using hypobromite as a disinfectant. Determine the Chick's law rate constant and the time required for 99.99 percent (4 log) inactivation of this virus. Time (s) ON ooooooo 0.0 2.0 4.0 689 6.0 8.0 10.0 12.0 N(#org/L) 1.000 350 78 20 6
23
q2 answer in 10 minutes
If the alum dose required to coagulate is 10 ppm, find out the amount of alum (in quintals) needed to treat 10 MLD of water.
. As shown on the table below. Calculate the initial and final set in minutes. Starting Time of Experiment Time of Initial Setting Time of Final Setting Initial Set Final Set 7:30 am 8:15 am 11:00 am
I need the answer as soon as possible
Q1: Calculate the dynamic viscosity of an oil, which is used for lubrication between a rectangular plate of size 0.75m x 0.55 m and an inclined plane with angle of inclination 45" as shown in figure 1. The weight of the rectangular plate is 0.5 kN and it slides down the inclined plane with a uniform velocity of 0.35 m/s. The thickness of oil film is 1.75 mm. Then, state the scope for this obtained viscosity? Rec bangular plabe -oil Inclined plane
i need the answer quickly
3. Particulate matter (PM) from vehicle exhaust is entering a gym through an open window and mixing with air discharged from the air conditioning system. The air conditioning system discharges 15 m³/s of air with a low PM concentration of only 0.20 mg/m³. The PM concentration in the air entering through the window is 4.50 mg/m³. If the mixed air exiting the gym has a PM concentration of 0.75 mg/m², what is the estimated flow rate of the air entering the window of the gym?