A ball is attached to a string and rotates in a circle. if it takes 1.00 s to complete one revolution, what is the angular veloc
1 answer:
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Answer with Explanation:
We are given that
Area of loop=
Resistance, R=
B=
We know that magnetic flux
Emf ,
Current,
Current,
Substitute t=0 s
Then, I==1.6 A
Substitute t=1 s
Then, I==0
Substitute
t=2 s
Current, I==1.6 A
Answer:
minimum frequency = 170 Hz
Explanation:
given data
One path long = 20 m
second path long = 21 m
speed of sound = 340 m/s
solution
we get here destructive phase that is path difference of minimum
here λ is the wavelength of the wave
so path difference will be
21 - 20 =
λ = 2 m
and
velocity that is express as
velocity = frequency × wavelength .............1
frequency =
minimum frequency = 170 Hz