The same constant force is used to accelerate two carts of the same mass, initially at rest, on horizontal frictionless tracks.
1 answer:
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The problem is basically asking us to find a way to find the sound intensity I, in terms dependent on the sound level and the reference intensity .For this purpose we can start from the unit used in the scale logarithmic decibel, that is
Where
I = Acoustic intensity on the linear scale
Hearing threshold
Using the logarithmic properties of the exponents the above expression can be described as:
that is the expression or technique to find the intensity of sound.
Answer:
Electric field, E =
Explanation:
Given that,
The potential difference across the membrane,
The thickness of the membrane is,
We need to find the magnitude of the electric field in the membrane. We know that the relation between electric field and electric potential is given by :
So, the magnitude of the electric field in the membrane is .