The amount of work done to produce a sound determines which property of sound waves?
2 answers:
Intensity of sound is defined by
So here we can say work done by us is stored in the form of energy of sound and that energy can be compared by the intensity of sound
So if we will do more work then the sound will have more energy and hence it will have more intensity
Now we know that intensity of sound is given as
so more is the intensity then more work which means the amplitude will be more
So answer will be
D. amplitude
You might be interested in
<h2>Answer:</h2>
The rate of deceleration is -0.14
Using one of the equations of motion;
v = u + at
where;
v = final velocity of the boat = 0m/s (since the boat decelerates to a stop)
u = initial velocity of the boat = 25m/s
a = acceleration of the boat
t = time taken for the boat to accelerate/decelerate from u to v = 3 minutes
<em>Convert the time t = 3 minutes to seconds;</em>
=> 3 minutes = 3 x 60 seconds = 180seconds.
<em>Substitute the values of v, u, t into the equation above. We have;</em>
v = u + at
=> 0 = 25 + a(180)
=> 0 = 25 + 180a
<em>Make a the subject of the formula;</em>
=> 180a = 0 - 25
=> 180a = -25
=> a = -25/180
=> a = -0.14
The negative value of a shows that the boat is decelerating.
Therefore, the rate of deceleration of the speed boat is 0.14