8.
1 answer:
Answer:
Explanation:
To explain this problem, we need to broach over the concept of pressure.
Pressure is the force applied per unit area on a body.
Pressure =
We see that the higher the force, the higher the pressure applied. Pressure is directly proportional to force.
Area shares an inverse relationship with pressure. The higher the pressure the lower the area and vice versa.
A high-heeled show shoe has a very small surface area compared to the surface of snowshoes which are larger.
For the same weight which is the downward force of the woman, the high-heeled shoe will have a higher pressure compared to the snow shoe.
The woman works effortlessly over soft snow without sinking in because the snow shoe generates a lower pressure compared to the heeled shoe
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Answer:
Explanation:
<u>Capacitance</u>
A two parallel-plate capacitor has a capacitance of
where
A = area of the plates =
d = separation of the plates
We need to compute C. We'll use the circuit parameters for that. The reactance of a capacitor is given by
where w is the angular frequency
Solving for C
The reactance can be found knowing the total impedance of the circuit:
Where R is the resistance, . Solving for Xc
The magnitude of the impedance is computed as the ratio of the rms voltage and rms current
The rms current is the peak current Ip divided by , thus
Now collect formulas
Or, equivalently
The capacitance is now
The radius of the plates is
The separation between the plates is