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3 years ago

Calculate the terminal velocity of a rain drop of radius 0.12cm

Physics

1 answer:

Tasya [4]3 years ago

6 0

Explanation:

Given that,

The radius of rain drop, r = 0.12 cm = 0.0012 m

The viscocity of air is, $\eta=18\times 10^{-5}\ poise$

Let the viscous force is, $F = 0.010173\ N$

The viscous force is given by :

$F=6\pi \eta rv\\\\v=\dfrac{F}{6\pi \eta r}$

Put all the values,

$v=\dfrac{0.010173}{6\pi 18\times 10^{-5}\times 0.0012 }\\\\v=2498.58\ m/s$

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4 years ago

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A parallel-plate capacitor with circular plates of radius R is being discharged. The displacement current through a central circ

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Answer:

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3 years ago

Calculate the electrostatic force that a small sphere A, possessing a net charge of 2.0 x 10^-6 Coulombs exerts on another small

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Answer:

F = 5.33*10^-4N

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to find the electrostatic force you use the Coulomb's law, given by the formula:

$F=k\frac{q_Aq_B}{r^2}$

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q_B: charge of B = -3.0*10^{-6}C

r: distance between the spheres = 10.0m

By replacing all these values you obtain:

$F=(8.89*10^9Nm^2/C^2)\frac{(2.0*10^{-6}C)(-3.0*10^{-6}C)}{(10.0m)^2}=5.33*10^{-4}N$

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3 years ago

A listener is sitting somewhere on the line between two loudspeakers that are 10 m apart. The speakers are each emitting a sine

prohojiy [21]

Answer:

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Path difference $\Delta x=6.5-3.5=3$

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$f=(2\times 0+1)\frac{343}{6}=57.17H$

for m =1

$f=(2\times 1+1)\frac{343}{6}=114.34Hz$

for m=2

$f=(2\times 2+1)\frac{343}{6}=285Hz$

6 0

3 years ago

Calculate the terminal velocity of a rain drop of radius 0.12cm​

Calculate the terminal velocity of a rain drop of radius 0.12cm