The table below describes some features of methods used to generate electricity. What is method 3?
1 answer:
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<h2>Hello!</h2>
The answer is: B. Kinetic energy
<h2>Why?</h2>Since the ball is falling, speed increases because the gravity acceleration is acting. When speed increases, the kinetic energy increases too, so the ball is gaining kinetic energy.
The gravity acceleration is equal to , it means that when falling, the ball will increase it's speed 9.81m every second.
We can calculate the kinetic energy by using the following formula:
Where:
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