Answer: The focus is the place inside Earth's crust where an earthquake originates. The point on the Earth's surface directly above the focus is the epicenter. The epicenter is the point on the surface above the focus, the place on the surface that would receive the most intense vibrations.
Explanation: Hope it helps <3
There's no way we can calculate how much the springs will stretch, because we don't know their "spring constants" ... how far 1 Newton of force will stretch each spring.
But we do know that both springs will stretch the same amount, because they're identical and they share the load equally.
So ...
The weight of the load is (mass) x (gravity) = (0.25 kg) x (9.81 m/s²) = 2.4525N
Each spring supports half of the load = 1.22625 N
If ' k ' is the spring constant of each spring, then each spring stretches by
<em>1.2265/k meters</em> .
Answer with Explanation:
We are given that
Restoring force,
We have to find the work must you do to compress this spring 15 cm.
Using 1 m=100 cm
Work done=
W=
Ideal spring work=
Percentage increase in work=%