Followings are given for a watershed: Rational method coefficient C = 0.35 Time of concentration =...

Followings are given for a watershed:

Rational method coefficient C = 0.35

Time of concentration = 60 min

Area A = 4.2 km^2

Rainfall intensity is 1.7 cm/hr

Part A: If rainfall duration is 60 min, determine the peak discharge in m^3/s.

Part B: If rainfall duration is 90 min, determine the peak discharge in m^3/s.

Expert Solution

Ally Wells answered 10 months ago

In rational method, the peak runoff is given by Q = Cf. C. i. A. The...

In rational method, the peak runoff is given by Q = Cf. C. i. A. The intensity i can be obtain from IDF curves. Discuss why a duration equal to time of concentration is used to determine the intensity

short answers T F When using the runoff coefficient, c, the Rational Method assumes that land...

short answers T F When using the runoff coefficient, c, the Rational Method assumes that land uses are uniformly distributed within a drainage area. What is the overland flow travel time for a hydraulic path 140 ft long through dense grass at an average slope of 1.0%? 1 minute 4 minutes 21 minutes 25 minutes The rational method assumes rainfall duration equal to the time of concentration. If an estimated time of concentration is larger than the actual time of...

Calculate the time of concentrations (or overland flow) for the two sub-areas of a watershed given...

Calculate the time of concentrations (or overland flow) for the two sub-areas of a watershed given below by multiple applicable methods (at least 3). Compare your answers for each method and watershed and discuss which may be the most accurate and why. Sub Area Area (acres) Impervious Acres Avg. Surface Slope (%) Runoff Coefficient Distance to Inlet Residential & small residences 52.6 10.5 3.0 0.42 1800 Small Business 14.0 6.3 4.5 0.66 850

In order to meet specifications, widgets must have a given time coefficient of at least 18....

In order to meet specifications, widgets must have a given time coefficient of at least 18. A sample of 100 widgets is drawn from the day’s production and tested and 21 of them had time coefficients less than 18. a. Find a 98% confidence interval for the proportion of widgets manufactured that day which fail to meet specifications. b. Repeat question a., but for 95% confidence interval. c. For each of these two levels of confidence, find the sample size...

Given that the pressure coefficient Cp distribution over a 2-dimensional slender body of chord c is...

Given that the pressure coefficient Cp distribution over a 2-dimensional slender body of chord c is described by Cp = -3(1-x/c) on the upper surface of the body and Cp = (1-x/c) on the lower surface of the body, then plot the pressure distribution and calculate: (a) The lift coefficient acting on the body, (b) The pitching moment coefficient on the body about its leading edge.

Solve the given differential equation, by the undetermined coefficient method: y"-4y'+4y=2x-sen2x (Principle of superposition)

I am having a difficult time with this loop. Needs to be in C++. Given numRows...

I am having a difficult time with this loop. Needs to be in C++. Given numRows and numColumns, print a list of all seats in a theater. Rows are numbered, columns lettered, as in 1A or 3E. Print a space after each seat, including after the last. Ex: numRows = 2 and numColumns = 3 prints: 1A 1B 1C 2A 2B 2C #include <iostream> using namespace std; int main() { int numRows; int numColumns; int currentRow; int currentColumn; char currentColumnLetter;...

Given the following data, determine which machine is better. Use the B/C method, a study period...

Given the following data, determine which machine is better. Use the B/C method, a study period of 10 years, and a MARR of 10%. Machine A Machine B First cost: Salvage value: Annual receipts: Annual disbursements: $20,000 2,000 150,000 138,000 $30,000 0 180,000 170,000 Determine the B/C values for each machine by using both the conventional and the modified formulations.

C Programme Time limit: 5000ms Memory limit: 256mb Description: Given a series of queue operations, please...

C Programme Time limit: 5000ms Memory limit: 256mb Description: Given a series of queue operations, please complete the queue ADT to output for respective operations. -------------------------Copy the following code, complete it and submit------------------------- #include <stdio.h> #include <stdlib.h> #include <string.h> typedef enum {enqueue = 1, dequeue, end, isfull, isempty} Operation; struct Queue { int * arr; int capacity; int front; int rear; }; struct Queue * Create(int capacity) { struct Queue * queue = (struct Queue *)malloc(sizeof(struct Queue)); queue->arr = (int*)malloc(sizeof(int)...

Question