Answer
Given data:
height of the dam = 15 m
effective area for water flow = 2.3 x 10⁻³ m²
Applying the principle of energy conservation:
v = 17.15 m/s
water discharge
Q = A V
Q = 2.3 x 10⁻³ x 17.15
Q = 0.039 m³/s
Consider three identical metal spheres, A, B, and C. Sphere A carries a charge of -2.0 µC; sphere B carries a charge of -6.0 µC;
1 answer:
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Answer:
0.018 J
Explanation:
The work required to bring the charge from infinity to the point P is equal to the change in its electric potential energy. This can be expressed as
where
represents the charge's magnitude
and signifies the potential difference between point P and infinity.
After substituting into the formula, we arrive at
1) The electric potential energy can be defined as the product of the electric potential and the associated charge:
where
q refers to the charge
V denotes the electric potential
In this scenario, the charge on the rod is
, and the potential energy is 
, thus we may rearrange the earlier formula to find the electric potential at the tip:
2) Using this same formula, if the charge changes to
, the resulting electric potential will be:
where
q refers to the charge
V denotes the electric potential
In this scenario, the charge on the rod is
2) Using this same formula, if the charge changes to