Is total energy and mechanical energy are the same?
Answers
Correct Question
12. The sum of two natural numbers is 72 and the sum of their reciprocals is 9
Find the numbers.
Answer
Given
A word problem
Sum of two natural no is 72
And sum of their reciprocal is 9
To find
The no
Solution
Let the no in tens place be x and no in ones place be y
According to the question
x+y =
=>72/xy = 9
=>72/xy = 9
=>xy = 8
Now
=>(x-y)²= (x+y)²-4xy
=>(x-y)²= (9)²-4×8
=>(x-y)² =81-32
=>x-y = √49
=>x-y = 7______(2)
Solving of Equation (1) and (2)
x+y = 72____(1)
x-y = 7______(2)
______
2x = 79
=>x = 39.5
Putting the value in Equation 1
x+y = 72
=>39.5+y =72
=>y = 72-39.5
=>y = 32.5
Hence the no is 32.5 and 39.5
Answer:
For now, merely remember that total mechanical energy is the energy possessed by an object due to either its motion or its stored energy of position. The total amount of mechanical energy is merely the sum of these two forms of energy. And finally, an object with mechanical energy is able to do work on another object.
Explanation:
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