When a car is slowing down, it has a negative acceleration. Although it is not going a negative speed, it is decreasing in velocity, which is the definition of a negative acceleration.
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The answer would be A, because the wind cannot complain, therefore it has been given a human quality.
Answer:
Because in order for work to be done on an object, the object must be moving. Why isn't work being done on a barbell when a weight lifter is holding the barbell over his head? Work is maximized when force is applied in the same direction that the object is moving. ... In order to do work faster, more_is required.
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