A boat with a horizontal tow rope pulls a water skier. She skis off to the side so that the rope makes an angle of 10 degrees wi
1 answer:
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Answer:
Explanation:
From the question we are told that:
Number of Turns
Radius
Field Change
Time
Generally the equation for Magnetic Field is mathematically given by
Generally the Flux at 332 turns is mathematically given by
Generally the equation for Area of coil is mathematically given by
Since
Therefore
Generally the equation for emf Magnitude is mathematically given by
Answer:
intensity of sound at level of microphone is 0.00139 W / m 2
sound intensity level at position of micro phone is 91.456 dB
EXPLANATION:
Given data:
power of sound P = 31 W
distance betwen microphone & speaker is 42 m
a) intensity of sound at microphone is calculated as
= 0.00139 W / m 2
b) sound intensity level at position of micro phone is
where I_o id reference sound intensity and taken as
= 91.456 dB