Doors of a dam are 20m below the surface of water in the dam. If one door is opened what will be the speed of the water that flows out of the door ?
The given can be listed as, h= 20m g = 9.8m/s² To find, v = ? Solution -��…
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Why we need waves below 30MHz for sky wave propagation
There are 3 types of propagation which are used and they are ground wave propagation, …
Characteristics of electromagnetic force and gravitational force
Characteristics of Electromagnetic force Electric force can be attractive or repulsive…
Silver when comes in contact with a boiled egg, turns grey or black. Why
Silver is a well known name in jewellery and coinage.Silver also has the highest elec…
New Year 2022
Wishing everyone a very Happy New Year ahead ! God bless you all
Calculate the viscous force acting on a rain drop of diameter 1 mm, falling with a uniform velocity 2 m/s through air. The coefficient of viscosity of air is 1.8 × 10^-5 Ns/m².
As per the question we can list some data as, diameter d = 1mm velocity v…
A light bulb is rated 100W for 220 V AC supply of 50 Hz. Calculate (a) resistance of the bulb. (b) the rms current through the bulb.
the given can be listed as Power P = 100W To Find , Resistance R = ? …