When an object is falling because of gravity, the following formulacan be used to determine the distance the object falls in asp
1 answer:
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Answer:
#include <iostream>
using namespace std;
int main()
{
float radius = 5.4;
float circumference = 2 * 3.14 * radius;
float area = 3.14 * radius * radius;
cout<<"the circumference of the circle is "<<circumference<<endl;
cout<<"the area of the circle is "<<area<<endl;
return 0;
}
Explanation:
Include the library iostream for using the input/output instructions.
create the main function and define the variable with value. Then,
use the formula to calculate the circumference and are of circle.
here, choose
after that, display the result.
Note: All variable define in float type.
Answer:
Following are the code to this question:
Explanation:
//For Solid:
public class Solid//defining a class Solid
{
private String myName;//defining a String variable
public Solid(String name)//defining parameterized constructor
{
myName = name;//holding String value in myName variable
}
public String getName()//defining getName method
{
return myName;//return value of myName
}
public double volume()//defining method volume that overriden its subclass
{
return 0;//return value
}
public double surfaceArea()//defining method surfaceArea that overriden its subclass
{
return 0;//return value
}
}
//For RectangularPrism:
public class RectangularPrism extends Solid//defining a class RectangularPrism that inherits Solid
{
protected double length,width,height;//defining double variable
RectangularPrism(String str,double l,double w,double h)//defining parameterized constructor
{
super(str);//use super method
this.length=l;//use this to hold value
this.width=w;//use this to hold value
this.height=h;//use this to hold value
}
public double volume()//defining volume method
{
return length*width*height;//calculate and return volume value
}
public double surfaceArea()//defining a method surfaceArea
{
return 2*(length*width+width*height+height*length);//calculate and return the surfaceArea
}
}
// For Cube:
public class Cube extends RectangularPrism//defining Cube class that inherits RectangularPrism
{
Cube(String name, double side) //defining parameterized constructor
{
super(name, side, side, side);//use super method
}
public double volume()//defining volume method
{
return length * length * length;//calculate and return volume
}
public double surfaceArea()//defining method surfaceArea
{
return 6 * length*length;//calculate and return surfaceArea
}
}
//for Cylinder:
import java.lang.*;//import lang package
public class Cylinder extends Solid//defining Cylinder class that inherits Solid
{
private double radius, height;//defining double variable
public Cylinder(String str, double r, double h)//defining parameterized constructor
{
super(str);//use super Method
this.radius = r;//use this keyword to hold value
this.height = h;//use this keyword to hold value
}
public double volume()//defining volume method
{
return Math.PI * radius * radius * height;//calculate and return volume
}
public double surfaceArea()//defining surfaceArea method
{
return 2 * Math.PI * radius * (height + radius);//calculate and return surfaceArea
}
}
//For Pyramid
import java.lang.*;//import package
public class Pyramid extends Solid//defining a Pyramid class that inherits Solid
{
private double length, width,height;//defining double variable
public Pyramid(String str, double l, double w, double h)//defining parameterized constructor
{
super(str);//use super method
this.length = l;//use this keyword to hold value
this.width = w;//use this keyword to hold value
this.height = h;//use this keyword to hold value
}
public double volume()//defining volume method
{
return (length*width*height)/3.0;//calculate and return volume
}
public double surfaceArea()//defining a method surfaceArea
{
return (length*width)+length*Math.sqrt((Math.pow((width/2),2)+(height*height)))+(width*Math.sqrt((Math.pow((length/2),2)+(height*height))));//calculate and return surfaceArea
}
}
//For Sphere
import java.lang.*;//import package
public class Sphere extends Solid //defining Sphere class that inherits Solid
{
private double radius;//defining double variable
public Sphere(String str, double r)//defining parameterized constructor
{
super(str);//use super method
this.radius = r;//use this to hold value
}
public double volume()//defining volume method
{
return (4.0/3.0)*Math.PI*radius*radius*radius;//calculate and return volume
}
public double surfaceArea()//defining method surfaceArea
{
return 4 * Math.PI * radius * radius;//calculate and return surfaceArea
}
}
please find attachment.
