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1. Two charges, of š1=+ 3.50 šš¶ and š2=ā 4.50 šš¶ are 0.400 m apart. Where along the line joining them will net electric field be zero? Note: šøā ššš”= 0 and šøā 1 and šøā 2 are opposite.
2. Four point charges are positioned as such: A(0,1), B(2,1), C(0,0), D(2,0). Charge A = -3 microcoulombs, Charge B = 3 microcoulombs, C = 2 microcoulombs, and D = -2 microcoulombs. What is the net electric field experienced at the origin.
Plate 9: The Marketing students conducted a survey to compare the length of time it took a male and a female student who belong to the same year level to review their lessons before taking the quarterly assessment in Statistics and Probability. The results of the survey were as follows:
Male
nā=60
xā =5.75 hours
sā =1.5 hours
Female
nā=60
xā=7.25 hours
sā=0.75hours
Test the claim, xā = xā, at 0.05 level of significance
the sample population is normally distributed, ĀÆx=42.5, Ļ = 3, and n = 30. What is the 90% confidence interval for Āµ?
Practice combining dictionaries with file input, practice with data visualization
Degree of Difficulty: Easy
(While loop structure)
Write a small program that displays a menu with the following options:
Ā Ā Ā A program that will calculate either the diameter, circumference, or area of a circle. Select your choice.
- Diameter
- Circumference
- AreaĀ
- Quit
Use the switch statement. The program is to ask for the radius of a circle. Present the menu and execute the corresponding calculation.
(while loop structure)
Write a short program that asks for your height in integer inchesĀ and then converts your height to feet and inches. Use a constĀ symbolic constant to represent the conversion factor (Inches perĀ ft). The only way to exit the program would be for height in inches beĀ 999.
A customer pays a monthly fee of $37.50 for the telephone serviceĀ and $3.50 per minute for long distance calls. Input the number ofĀ minutes for long distance calls. Calculate the total bill. Print theĀ results and ask again. The only way to exit the program would beĀ for number of minutes is -1. (while loop structure)
Explain the difference between a community and a population.
A construction company manufactures bags of concrete mix from beach sand and river sand. Each cubic of gravel. Each cubic meter of river sand costs P100 and contains 3 units of fine sand, 6 units of coarse sand, and 2 units of gravel. Each bag of concrete must contain at least 12 units of fine sand, 12 units of coarse sand, and 10 units of gravel. Find the best combination of beach and river sand which will meet the minimum requirements of fine sand, coarse sand, and gravel at the least cost.
A hog raiser is mixing two types of grains A and B. each units of grain A costs P50 and contains 20 grams of fat and 10 grams of protein. Each unit of grain B costs P80 and contains 30 grams of fat and 30 grams of proteins. The hog raise wants each units of the final product to yield at least 180 grams of fat and at least 120 grams of protein. How many units of each type of grain should he use to maximize his sales?
