Your assignment is to create a python program that uses a graphical user interface (gui) to facilitate grocery store checkoutsfor a fictional store called gerry’s groceries. your program will begin by reading the day’s grocery prices from a csv file called grocerydb. csv. gerry’s groceriessells four different items: milk, orange juice, eggs, and corn flakes. every day, the store owner, gerry, willupdate grocerydb. csvwith the day’s prices. the csv file will always consist of two columns, where the first column contains the name of each item and the second column contains that item’sprice. the prices may change each day, but the store will always sell the same four items. an examplegrocerydb. csvfile is provided alongside the assignment and is also copied below. only treat this file as an example; your code should work with anycsvfile of this format named grocerydb. csv.

Amixture of slurry and mud is to be pumped through a horizontal pipe of diameter 500 mm. the fluid behaves as a bingham plastic with a yield stress of 30 pa and viscosity 0.04 pa.s. describe the effects of the shear stress through a transverse section of the pipe by plotting the variation in shear stress and velocity profile: (i) just before the slurry starts to move (ii) as the slurry flows when the pressure gradient is double that in part (i)

Acircular aluminum shaft mounted in a journal is shown. the symmetric clearance gap between the shaft and journal is filled with sae 10w-30 oil at t 30°c. the shaft is caused to turn by the attached mass and cord. develop and solve a differential equation for the angular speed of the shaft as a function of time.

Ashielded metal arc-welding operation is accomplished in a work cell by a fitter and a welder. the fitter takes 5.5 min to load components into the welding fixture at the beginning of the work cycle, and 1.5 min to unload the completed weldment at the end of the cycle. the total ength of the weld seams 1200 mm, and the travel speed used by the welder averages 300 mm/min. every 600 mm of seam length, the welding stick must be changed, which takes 0.8 min. while the fitter is working, the welder is idle (resting): and while the welder is working the fitter is idle. (a) determine the average arc-on time as a fraction of the work cycle time. (b) how much improvement in arc-on time would result if the welder used flux-cored arc welding (manually operated), given that the spool of weld wire must be changed every 10 weldments, and it takes the welder 5.0 min to accomplish the change? (c) what are the production rates for these two cases (weldments completed per hour)? attach your work and solutions.