In real machines, efficiency is always <em>less </em>than 100% .
Answer:
x = 58.86[mm]
Explanation:
This problem can be solved by means of Hooke's law which tells us that the force is equal to the product of the constant of the spring by the distance that is compressed or stretched. The following equation can be used.
where:
F = force or weight [N]
k = spring constant = 2*10⁵ [N/m]
x = distance compressed [m]
The weight can be calculated as the product of the mass by the gravity acceleration.
Now replacing in the Hook's law
If the object is kept in between the principle axis and the focus but some what nearer to the focus then we will get the enlarge,erect,and real image.
Req = 30.0Ω.
When two or more resistors are in series, the intensity of current that passes through each of them is the same. Therefore, if you notice, you can observe that the three previous series resistors are equivalent to a single resistance whose value is the sum of each one.
Req = R1 + R2 + R3 = 10.0Ω + 10.0Ω + 10.0Ω = 30.0Ω