Answer:
The magnitude of the electric field intensity is
Explanation:
From the question we are told that
The voltage is 
The thickness of the membrane is
Generally the electric field intensity is mathematically represented as

substituting values


Answer:
D
Explanation:
When the sound is moving away from the stationary object the pitch decreases according to the Doppler Effect.
100N to the left. Newton's 3rd law action and reaction
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Good morning.
We have:

Where
j is the unitary vector in the direction of the
y-axis.
We have that

We add the vector
-a to both sides:

Therefore, the magnitude of
b is
47 units.