To develop this problem we will use the concepts related to Speed in a string that is governed by Tension (T) and linear density (µ)

Our values are given as:

Replacing we have that the velocity is



From the theory of wave propagation the average power wave is given as

Where,
A = Amplitude
Angular velocity


Replacing,


Therefore the amplitude of the wave should be 0.0165m
Answer:
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Explanation:
Answer:
3.) 463 J/g
Explanation:
Heat given by the fuel is used to increase the temperature of the water
so it is given as

here we will have
m = 250 g

now we also know that

so we have


so 3.5 g fuel gives above energy
so per gram of fuel will have total energy given as


Answer:
The approximate combined sound intensity is 
Explanation:
The decibel scale intensity for busy traffic is 80 dB. so intensity will be
, therefore 
In the same way for the loud conversation having a decibel intensity of 70 dB.
, therefore 
Finally we add both of them
, is the approximate combined sound intensity.
You can hear a difference between these two sounds. That is because their pitch isdifferent. Pitch depends on the frequency of a sound wave. ... High sounds have highfrequencies and low sounds have lowfrequencies.