What is the laws of dry or solid friction.
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Is there god and what is the difference between energy in space and so called goddly energy
Why have the electron and the proton the same charge whereas the proton is 1836 times heavier?
How much should be the minimum size of the ordinary mirror, so that and observer standing at the centre of room is able to see the whole of the height of the wall behind him ?
a car is travelling at 72kmph, and if that car slows down to 60kmph it takes an extra 1 hour to cover that same distance. at 72kmph, how long did it take for the car to cover that distance?
Explain what are wave fronts?
All elements with an atomic number greater than what number are unstable?
we know the speed of light...... then what is the speed of darkness?????????????
How can you estimate the height of a bridge by dropping a stone from it ?
How is specific gravity defined?
why we use Transistor?
what is ngative current
How many types of wave motions are there?