Q3a) Summary Newton’s law states that the force, F, between two bodies of masses M1 and M2 is given by:     in which k is the gravitational constant and d is the distance between the bodies. The value of k is approximately 6.67 X 10-8 dyn. cm²/g² . Instructions Write a program that prompts the user to input: The masses of the bodies The distance between the bodies. The program then outputs: The force between the bodies. Your program should be able to work with decimals. Q3b) Cindy uses the services of a brokerage firm to buy and sell stocks. The firm charges 1.5% service charges on the total amount for each transaction, buy or sell. When Cindy sells stocks, she would like to know if she gained or lost on a particular investment. Instructions Write a program that allows Cindy to input: The purchase price of each share The selling price of each share The number of shares sold The program outputs: The total amount invested The total amount received from selling The total service charges Amount gained or lost An example program is shown below: Enter the buying price of each share: 13.23 Enter the selling price of each share: 14.00 Enter the number of shares sold: 43 Total amount invested: $ 577.423 Total amount received: $ 592.97 Total service charges: $ 17.5633 Amount gained or lost: $15.5466 Since your program handles currency, make sure to use a data type that can store decimals. Q3c) A piece of wire is to be bent in the form of a rectangle to put around a picture frame. The length of the picture frame is 1.5 times the width. Write a program that prompts the user to input: The length of the wire The program then outputs: The length and width of the picture frame.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Q3a)

Summary

Newton’s law states that the force, F, between two bodies of masses M1 and M2 is given by:

 

 

in which k is the gravitational constant and d is the distance between the bodies. The value of k is approximately 6.67 X 10-8 dyn. cm²/g² .

Instructions

Write a program that prompts the user to input:

  1. The masses of the bodies
  2. The distance between the bodies.

The program then outputs:

  1. The force between the bodies.

Your program should be able to work with decimals.

Q3b)

Cindy uses the services of a brokerage firm to buy and sell stocks. The firm charges 1.5% service charges on the total amount for each transaction, buy or sell. When Cindy sells stocks, she would like to know if she gained or lost on a particular investment.

Instructions

Write a program that allows Cindy to input:

  1. The purchase price of each share
  2. The selling price of each share
  3. The number of shares sold

The program outputs:

  1. The total amount invested
  2. The total amount received from selling
  3. The total service charges
  4. Amount gained or lost

An example program is shown below:

Enter the buying price of each share: 13.23 Enter the selling price of each share: 14.00 Enter the number of shares sold: 43 Total amount invested: $ 577.423 Total amount received: $ 592.97 Total service charges: $ 17.5633 Amount gained or lost: $15.5466

Since your program handles currency, make sure to use a data type that can store decimals.

Q3c)

A piece of wire is to be bent in the form of a rectangle to put around a picture frame. The length of the picture frame is 1.5 times the width.

Write a program that prompts the user to input:

  1. The length of the wire

The program then outputs:

  1. The length and width of the picture frame.
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