Answer:
<em>The penny will hit the ground at 6.39 seconds</em>
Explanation:
<u>Free Fall</u>
The penny is dropped from a height of y=200 m. The equation of the height on a free-fall motion is given by:
Where , and t is the time.
Solving for t:
Using the value y=200:
t=6.39 sec
The penny will hit the ground at 6.39 seconds
Answer:
Explanation:
Given:
Dielectric of the medium between the plates (k) = 6.56
Area of eac plate (A) = 0.0830 m²
Separation between the plates (d) = 1.95 mm = 0.00195 m [1 mm = 0.001 m]
Maximum electric field = 202 kN/C = 202000 N/C [1 kN = 1000 N]
Permittivity of space (ε₀) = 8.854 × 10⁻¹² F/m
The maximum potential difference across the plates of the capacitor is given as:
Now, capacitance of the capacitor is given as:
The maximum energy stored in the capacitor is given as:
Therefore, the maximum energy that can be stored in the capacitor is