The time required for the water balloon to reach the ground is given as

Here we understand that


Now applying the earlier mentioned formula



Now in the same time frame, we can conclude the distance covered will be


Thus, it will land at a distance of 15.7 m from where it started
Answer: A) 2 B) 4 C) 1
Explanation:
The electric field associated with a parallel-plate capacitor is defined as:
A) E=Q/(L^2 * ε0); if we double the charge, the resultant electric field becomes twice as strong as its initial value.
B) Referring to the earlier electric field expression, if the plate size is doubled, the final electric field will be a quarter of the original strength.
C) If the separation distance between the plates is increased twofold, the resulting electric field remains unchanged from its initial state.
Based on my findings, within a period of 2 hours, there are certain atoms remaining.
N = N0 * 2^(-t/6.020) = N = N0 * 2^-0.33223 = 0.7943 N0
Thus, the quantity of atoms that undergo disintegration is N0 - N = N0 * (1 - 0.79430) = 0.2057 N0
This must equate to 15 mCi = 15 * 3.7 * 10^7 = 5.55 * 10^8 atoms
N0 = 5.55 * 10^8 / 0.2057 = 2.698 * 10^9 atoms
Consequently, 2.698 * 10^9 atoms represents the value of N0.