### Problems

1. MotorBoat Class (25 points)

Exercise 5.7 (p 359): Implement a class MotorBoat that represents motorboats. A motorboat has attributes for:

• The capacity of the fuel tank
• The amount of fuel in the tank
• The maximum speed of the boat
• The current speed of the boat
• The efficiency of the boat's motor
• The distance traveled
The class has methods to
• Change the speed of the boat
• Operate the boat for an amount of time at the current speed
• Refuel the boat with some amount of fuel
• Return the amount of fuel in the tank
• Return the distance traveled so far
If the boat has efficiency e, the amount of fuel used when traveling at a speed s for time t is e x s^2 x t. The distance traveled in that time is s x t.

Include a driver program that instantiates several objects of type MotorBoat and demonstrates the class.

Exercise 5.8 (p 330): Implement a class PersonAddress that represents an entry in an address book. Its attributes are:

• The first name of the person
• The last name of the person
• The email address of the person
• The telephone number of the person
It will have methods to
• Access each attribute