Name two types of evidence used to support the theory of evolution. Explain how scientists use each type of evidence to provide
1 answer:
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<h2>Hello!</h2>
The answer is: 8.62m
<h2>Why?</h2>There are involved two types of mechanical energy: kinetic energy and potential energy, in two different moments.
<h2>First moment:</h2>Before the ball is thrown, where the potential energy is 0.
<h2>Second moment: </h2>After the ball is thrown, at its maximum height, the Kinetic Energy turns to 0 (since at maximum height,the speed is equal to 0) and the PE turns to its max value.
Therefore,
Where:
<em>E</em> is the total energy
<em>PE</em> is the potential energy
<em>KE</em> is the kinetic energy
<em>m</em> is the mass of the object
<em>g</em> is the gravitational acceleration
<em>h </em>is the reached height of the object
<em>v</em> is the velocity of the object
Since the total energy is always constant, according to the Law of Conservation of Energy, we can write the following equation:
Remember, at the first moment the PE is equal to 0 since there is not height, and at the second moment, the KE is equal to 0 since the velocity at maximum height is 0.
So,
Hence,
The height at the second moment (maximum height) is 8.62m
Have a nice day!
Answer:
The apparent weight of the person as she pass the highest point is
Explanation:
From the question we are told that
The radius of the Ferris wheel is
The period of revolution is
The weight of the person is
Generally the speed of the wheel is mathematically represented as
substituting values
The apparent weight (the normal force exerted on her by the bench) at the highest point is mathematically evaluated as
Where m is the mass of the person which is mathematically evaluated as
substituting values
So