Answer:
By a factor 9
Explanation:
The intensity of a sound wave is proportional to the square of the amplitude of the wave:
where
I is the intensity
A is the amplitude of the wave
In this problem, the amplitude of the sound wave is increased by a factor 3:
A' = 3A
So the intensity would change by
So, the intensity would increase by a factor 9.
<Continuation of the question>
(a) the spring constant (in N/m) and
(b) the weight of the block hanging from the third spring.
the distance for the first spring is 20cm, the second 35cm, the third 50cm.
Answer:
a) To find the spring constant, we'll use the formula
F=kx, if we make k the subject we'll get
k=F/x, where F=4.5N, x = 35cm - 20cm = 15cm = 0.15m
k=F/x = 4.5N/0.15m = 30N/m is the Answer
b) to find the weight of block hanging on third spring
we use the formula F=kx
where k = 30N/m, x=50cm-20cm=30cm=0.30m
F=kx = (30N/m)*(0.30m) = 9N is the Answer
Nah gaya seperti titik fashion seperti apa yang Anda mana dan hal-hal seperti itu. (tell me if you cant understand)
A side of any triangle is less than the sum of the other two sides so the third side must be less than 24cm.
<h3>What is a triangle?</h3>
A triangle is a 3-sided shape that is occasionally referred to as a triangle. There are three sides and three angles in every triangle, some of which may be the same.
The sum of all three angles inside a triangle will be 180° and the area of a triangle is given as (1/2) × base × height.
There are many types of triangles such that right-angle triangles, equilateral triangles, and much more.
In any triangle, the sum of two sides is always greater than the third side.
If the third side is equal to the sum of two sides then it will be a straight line rather than a triangle.
It means 10 + 14 > third side
24 cm > third side
Hence "A side of any triangle is less than the sum of the other two sides so the third side must be less than 24cm".
For more about triangles,
brainly.com/question/2773823
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