Question Question 1: Water Supply and Demand Requirements (Total 15 marks) a) A small town (population 2000) is to install a new water supply system. Three possible sources of water have been identified: . A small river with adequate summer flow running through farmland Infiltration galleries or wells adjacent to the river A local creek from a small bush-clad hill catchment that has adequate total annual . Tabulate the advantages and disadvantages of each source as shown below. Advantages Disadvantages River Galleries / welis Bush-clad catchment (5 marks) Note: Type your answer in Microsoft word and print it b) The population for a town is 5200 (1 + F/100). The pattern of monthly flow measured over the three consecutive driest years for a stream is given in the table below. First generate the flow records for the stream for your exercise by multiplying the given values by a factor of (1+F/100). Then: (10 marks) 1. II. III. Using the Rippl method, explain if this water resource is sufficient to supply the township if the capita demand is 300 L/h/d. Determine the minimum storage volume required to maintain a steady supply. Determine the number of years the stream can supply drinking water if the population increases at a rate of 1% annually. Flow Volume ( x 104 m) Month Year 1 Year 2 Year 3 June 0.8 2.4 1.2 July 10.8 0.7 1.1 August 7.2 0.6 1.4 September 0.8 0.7 2.7 October 0.8 0.8 1.8 November 0.7 0.8 December 0.6 4.5 January 0.8 5.4 7.5 February 2.2 10.8 10.5 March 3.0 9.9 7.5 April 3.4 8.1 4.2 May 12.8 3.6 8.3 Note: Factor F is the last digit of your ID. If your ID is 1500567, then (1+F/100) = 1.07. 17.7 4.1

A square footing is to be design to carry an axial load of 61175 kg. The bottom of the footing is 2.5 m. below the ground surface, and the groundwater table is located at the bottom of the footing as shown in the figure. Assume a general shear failure. Use: qult = 1.3c Nc + Df Nq + B Ny Nc = 35 Nq = 22 Ny = 19 1. Compute the dimension of the footing using a factor of safety of 3. 61175 kg ground surface P=1846 kg/m3 C=1605 kg/m2 Ø=30° Dy=2.5m Pa 1965 km ground water -B Tabte -

Task 1 :Here we're going to write Python code to process historical transaction data to implement the feature.Suppose that we are using a Python list to maintain all products purchased in different transactions:transactions = [[2, 8, 3, 6, 1, 9], [0, 5, 9], [0, 9], [4, 7, 0, 5, 9], [8, 3], [1, 6, 3, 8], [9, 0, 5], [3, 8], [5, 7, 0, 4], [3, 1, 2, 6, 0]]Elements in each sublist represent product IDs co-purchased in a transaction.Our goal is, for each product in this tiny transaction dataset, recommend products that are most frequently purchased together with the current product.Please complete the following tasks based on the problem description.For each transaction, enumerate all pairs of products that co-occur in the corresponding sublist. For example, processing the sublist [9, 0, 5] should produce three pairs (0, 5), (0, 9), and (5, 9).Pay attention to the order of product IDs in each pair. The same product pair (e.g., product 5 and product 9) can have two different representations (i.e., (5, 9) and (9, 5)). To facilitate the subsequent processing, make sure all pairs each are represented by its ascending representation (e.g., (0, 5) rather than (5, 0)).Moreover, make sure product pairs created from the same sublist are sorted first by the 1st element and then by the 2nd element. E.g., the list of pairs created from the sublist [1, 6, 3, 8] should be presented as [(1, 3), (1, 6), (1, 8), (3, 6), (3, 8), (6, 8)].Produce a Python list, product_pairs, whose values each are a list of such pairs.The expected output of print(product_pairs) is as follows:[[(1, 2), (1, 3), (1, 6), (1, 8), (1, 9), (2, 3), (2, 6), (2, 8), (2, 9), (3, 6), (3, 8), (3, 9), (6, 8), (6, 9), (8, 9)], [(0, 5), (0, 9), (5, 9)], [(0, 9)], [(0, 4), (0, 5), (0, 7), (0, 9), (4, 5), (4, 7), (4, 9), (5, 7), (5, 9), (7, 9)], [(3, 8)], [(1, 3), (1, 6), (1, 8), (3, 6), (3, 8), (6, 8)], [(0, 5), (0, 9), (5, 9)], [(3, 8)], [(0, 4), (0, 5), (0, 7), (4, 5), (4, 7), (5, 7)], [(0, 1), (0, 2), (0, 3), (0, 6), (1, 2), (1, 3), (1, 6), (2, 3), (2, 6), (3, 6)]] Full credits will be awarded only if your answer is a comprehension implemention. Loop implementations can only get at most 80% of full marks.Task 2 :Next, we will process product_pairs to create a dictionary cooccurences, whose keys are product pairs and whose values represent the number of their co-occurrences across transactions.The expected output of print(cooccurences) should look like the following (the output formatting can be different):{(0, 1): 1, (0, 2): 1, (0, 3): 1, (0, 4): 2, (0, 5): 4, (0, 6): 1, (0, 7): 2, (0, 9): 4, (1, 2): 2, (1, 3): 3, (1, 6): 3, (1, 8): 2, (1, 9): 1, (2, 3): 2, (2, 6): 2, (2, 8): 1, (2, 9): 1, (3, 6): 3, (3, 8): 4, (3, 9): 1, (4, 5): 2, (4, 7): 2, (4, 9): 1, (5, 7): 2, (5, 9): 3, (6, 8): 2, (6, 9): 1, (7, 9): 1, (8, 9): 1}Full credits will be awarded only if the order of keys in your result matches exactly that in the expected output.Task 3 :Process cooccurences to output a new dictionary recommendation whose entries each are a list of recommended products associated with the number of transactions where they were co-purchased.The expected output is as follows:{0: [(5, 4), (9, 4), (4, 2), (7, 2), (1, 1), (2, 1), (3, 1), (6, 1)], 1: [(3, 3), (6, 3), (2, 2), (8, 2), (0, 1), (9, 1)], 2: [(1, 2), (3, 2), (6, 2), (0, 1), (8, 1), (9, 1)], 3: [(8, 4), (1, 3), (6, 3), (2, 2), (0, 1), (9, 1)], 4: [(0, 2), (5, 2), (7, 2), (9, 1)], 5: [(0, 4), (9, 3), (4, 2), (7, 2)], 6: [(1, 3), (3, 3), (2, 2), (8, 2), (0, 1), (9, 1)], 7: [(0, 2), (4, 2), (5, 2), (9, 1)], 9: [(0, 4), (5, 3), (1, 1), (2, 1), (3, 1), (4, 1), (6, 1), (7, 1), (8, 1)], 8: [(3, 4), (1, 2), (6, 2), (2, 1), (9, 1)]}It means that, e.g., for product 5 (corresponding to the entry 5: [(0, 4), (9, 3), (4, 2), (7, 2)]), a list of products (i.e., product 0, 9, 4, and 7), each being represented by a tuple with the 1st element being the ID and the 2nd the number of transactions where it has appeared together with product 5, are recommended. The recommended products are also sorted in descending order by the the number of cooccurences with product 5 (i.e., the 2nd element of inner tuples).# starter code​transactions = [[2, 8, 3, 6, 1, 9], [0, 5, 9], [0, 9], [4, 7, 0, 5, 9], [8, 3], [1, 6, 3, 8], [9, 0, 5], [3, 8], [5, 7, 0, 4], [3, 1, 2, 6, 0]]

(a) [10 pts) Show that the integrand (differential form belongs to the integral sign) is exact in the domain D. (271,3,7/2) s (y sin z dx + x sin z dy + xy cos z dz) (0,1,0) (b) [5 pts) Evaluate the integral in (a) by showing your works in details.

Can you explain with steps, please? I really wanna learn how todo it. 5.4: Problem 6 Previous Problem Problem List Next Problem (1 point) Find the derivative of the function: y = E Vt sin tødt dy 8x^5sin(x^48)-(sin(x^3))(2x^(1/4)) dx NOTE: Enter a function as your answer. help (formulas)

Draw the Lewis structures for each atom or ion. Se Se2-Cs+I- 

The rocket is fired vertically and tracked by the radar station shown. When 6 reaches 60 degree, other corresponding measurements give the values r = 9 km. r = 21 m/s^2, and theta = 0.02 rad/s. Calculate the magnitudes of the velocity and acceleration of the rocket at this position.