What is sound energy? List three examples of sound energy that you experienced today.
1 answer:
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Answer:
The frequency of the beat is
Explanation:
From the question we are told that
The speed of the ride
The frequency of the oboe is
The temperature outside is
Generally the speed of sound generated in air is mathematically evaluated as
Substituting value
The frequency of sound(generated by the musician on he park) getting to the musicians on the unicycle is mathematically evaluated as
substituting values
Since the musician on the park is not moving the frequency of sound (from the musicians riding the unicycle )getting to him is = 440Hz
The beat frequency these musician here is mathematically evaluated as
So
The two objects after (b) are at the same potential
Explanation:
When the two conducting objects are connected together, charge will be transferred from one object ot another until the two objects reach the same potential.
In fact, if there is still some residual potential difference between the two objects, there would still be a net electric field pushing the charges from one object to the other. Therefore, equilibrium is reached only when the net electric field between the two objects becomes zero, and this occurs only when the potential difference is zero, so when the two objects are at the same potential.
At the equilibrium, however, the charge on the two objects can be different. In fact, the capacity of an object is given by
where Q is the charge stored by an object and V is its potential. It can be re-arranged as
The two objects are at same potential, V, however their capacity C can be different since the two objects are not identical: therefore, their stored charge can be different.
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