Displacement will be zero.
<h3>What is displacement and how is it different from distance?</h3>
Displacement:
- It is the shortest distance between an object's beginning position and ending position.
- The quantity is a vector.
- It may be zero, positive, or negative.
- Displacement may be greater than or equal to distance.
In the given question, we start from one point and finish at the same point around the circular track. Therefore there is no distance between the initial and final points because they are the same. That's why the displacement is zero.
Distance:
- It is the actual path or distance that an object takes to go from its starting point to its finishing point.
- The quantity is a scalar one.
- It cannot be 0 or negative; it must be positive.
- Displacement and distance may be equal.
Learn more about displacement here:
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The answer is C. From the yolk to the white.
Answer:
Explanation:
Let the intensity of the noise be represented by I
Given that
40dB = 10 log 10 ( I /I•) ........ 1
I• is the lowest or threshold intensity of sound made.
I represents the intensity of the sound/ noise
The intensity of noise of 1000flies will be
β = 10 log 10 (1000I/I•)
Open up the bracket
β = 10 log 10(1000)+ 10 log 10(I/I•)
10 log 10(10^3)+10 log 10(I/I•)
3×10(10 log 10) +10 log 10(I/I•)
Recall, 10 log 10 = 1
30×1 + 10 log 10(I/I•).........2
Put equation 1 into 2
β =30+40
= 70db
