Answer:
Explanation:
given,
charge of two spherical drop = 0.1 nC
potential at the surface = 300 V
two drops merge to form a single drop
potential at the surface of new drop = ?
r = 0.003 m
volume = 
= 
= 2.612 × 10⁻⁷ m³
![R =\sqrt[3]{\dfrac{2.612 \times 10^{-7}\times 3}{4\times \pi}}](https://tex.z-dn.net/?f=R%20%3D%5Csqrt%5B3%5D%7B%5Cdfrac%7B2.612%20%5Ctimes%2010%5E%7B-7%7D%5Ctimes%203%7D%7B4%5Ctimes%20%5Cpi%7D%7D)
R = 0.00396 m
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Answer:
107 m
Explanation:
Convert km/h to m/s:
128.4 km/h × (1000 m / km) × (1 h / 3600 s) = 35.67 m/s
Distance = rate × time
d = 35.67 m/s × 3.0 s
d = 107 m
Answer:
f = 1.69*10^5 Hz
Explanation:
In order to calculate the frequency of the sinusoidal voltage, you use the following formula:
(1)
V_L: voltage = 12.0V
i: current = 2.40mA = 2.40*10^-3 A
L: inductance = 4.70mH = 4.70*10^-3 H
f: frequency = ?
you solve the equation (1) for f and replace the values of the other parameters:
The frequency of the sinusoidal voltage is f
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