Python Lab 5: if statements with else and elif 1. Write an if statement to determine if a number is divisible by 5. Ask the user to enter a number. Determine if the number is divisible by 5. if (number % 5 == 0): print (str(number) + ' is divisible by 5') 2. Write an if/else statement. An else statement can follow an if statement. The code in an else statement is executed if the expression in the if statement is false. if (number % 5 == 0): print (str(number) + ' is divisible by 5') else: print (str(number) +' is divisible by 5') Notice that an else statement does not have a Boolean expression. Write an additional if/else statement to see if the number is divisible by 2. Test your code with many different inputs. 3. Write an iflelif/else The command elif can be used to make a series of if statements more efficient. As soon as one of the expressions is true, the other ones are skipped. elif is short for 'else if. sequence. Ask the user to enter a State/Province name, and print out the capital of that state. Your code should handle at least 6 different inputs. Use an if/elif/else structure if (state == 'Wisconsin'): print ('Madison') elif (state == 'Colorado)': print('Denver') else: print ('I do not know that one') Test your code with many different input values. 4. Use elif in a function definition. At a certain public pool, entrance prices are as follows: Under 2 years: free, Age 2-11: $3, Age 11-60: $6, Over 60: $4 Complete a function that takes the age in years as input and returns the price in dollars (without the dollar sign). def pool_admission(age): if (age < 2): return e elif (age < 12): return 3 Notice that elif reduces possibilities and makes the code easier to read.

(Misc. application) a. Write a program to reverse the digits of a positive integer number. For example, if the number 8735 is entered, the number displayed should be 5378. (Hint: Use a do statement and continuously strip off and display the number’s units digit. If the variable numinitially contains the number entered, the units digit is obtained as (num % 10). After a units digit is displayed, dividing the number by 10 sets up the number for the next iteration. Therefore, (873510)is5and(8735/10)is873. The do statement should continue as long as the remaining number is not 0.) b. Run the program written in Exercise 3a and verify the program by using appropriate test data.

4. During each summer, John and Jessica grow vegetables in their backyard and buy seeds and fertilizer from a local nursery. The nursery carries different types of vegetable fertilizers in various bag sizes. When buying a particular fertilizer, they want to know the price of the fertilizer per pound and the cost of fertilizing per square foot. The following program prompts the user to enter the size of the fertilizer bag, in pounds, the cost of the bag, and the area, in square feet, that can be covered by the bag. The program should output the desired result. However, the program contains logic errors. Find and correct the logic errors so that the program works properly. // Logic errors. #include #include using namespace std; int main() { double costs double area; double bagsize; cout > bagsize; cout > cost; cout > area; cout << endl; cout << "The cost of the fertilizer per pound is: $" << bagsize / cost << endl; cout << "The cost of fertilizing per square foot is: $" << area / cost << endl; return 0; }

(Physics) Coulomb’s Law states that the force, F, acting between two electrically charged spheres is given by this formula: F=kq1q2r2 q1isthechargeonthefirstsphere.q2isthechargeonthesecondsphere.risthedistancebetweenthecentersofthetwospheres.kisaproportionalityconstant. Write an assignment statement to calculate the force, F.