Answer:
7) Electrical Energy used = 5000 J
8) Check below for answer and explanation
Explanation:
7) Let the Sound Energy Produced = SE
Electrical Energy = EE
Sound energy produced, SE = 1000 J
% of Electrical energy converted to sound = 20%
SE = 20% of EE
SE = (20/100) * EE
1000 = 0.2 EE
EE = 1000/0.2
EE = 5000 J
Electrical Energy used = 5000J
8) The vehicle's efficiency = 18%
Energy loss = 82%
The 82% energy loss in the vehicle can be due to the following reasons:
a) Heat generated by the exhaust of the vehicle
b) Noise generated by the vehicle
c) Frictional force in the engine
d) Combustion
Answer:
movieCost=4.95
Float
movieStars = ['Carrie Fisher', 'Harrison Ford']
List
movie= 'Star Wars'
String
movieID=132
int
movieAwards = ('Oscar', 'Golden Globe', 'Director's Guild')
Tuple
movieRatings = {5:'language', 3:'violence'}
Dictionary
Explanation:
movieCost = 4.95
movieCost is of float type because it has a decimal point.
movieStars = ['Carrie Fisher', 'Harrison Ford']
movieStars if of list type because in Python the elements of list is inside square brackets.
List is an ordered collection. List is mutable i-e items can be added and remved from the list
movie = 'Star Wars'
movies is a string type because it is in enclosed in single quotes only.
movieID = 132
movieID is of int type because it is only number, without decimal value.
movieAwards = ('Oscar', 'Golden Globe', 'Director's Guild')
movieAwards is a tuple type because it is enclosed in round brackets or parenthesis.
Tuple is a sequence object. It is ordered collection of item. it is immutable.
movieRatings = {5:'language', 3:'violence'}
MovieRating is a dictionay type because it is in key-value pair. it is an unordered collection.
Radio waves are used to communicate with each other with wireless network devices.
Hope this helps!
Answer:
dimentio
Explanation:
dimentio is the master of dimensions and pleaser of crowds
Answer:
ssume that,
Maximum “students” count can be 10.
*Driver Class*
*Solution class*
import java.util.*;
class Student {
private String name;
private int rollNo;
public String getName() {}
public void setName(String name) {}
public int getRollNo() {}
public void setRollNo(int rollNo) {}
};
class ClassRoom {
private int i;
private Student[] students;
public void addStudent(String name, int rollNo) {}
public Student[] getAllStudents() {}
};