Answer:

Step-by-step explanation:
9,09
- 0,1
____
8,99
Line up the decimals CORRECTLY as so, and you will arrive at this answer.
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Answer:
1125.4 Hz
Step-by-step explanation:
The resonant frequency is the frequency at with the inductive reactance is equal to the capacitive reactance. It is given by the relation ...

where L is in henries, and C is in farads.
__
For the given circuit values, the resonant frequency is ...

The resonant frequency of this circuit is about 1125.4 hertz.
Answer:
17.40 seconds
Step-by-step explanation:
You would you the quadratic formula to get 17.40 seconds
C = 2 pi r
c = 2(3.14)(1/4)
c = 1/2(3.14) = 1.57 miles
d = rt
1.57 = 2a
.785 = a