How is sound produced?
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What is the formula of velocity?
Explain the Real and Virtual Image ?
Why dies water rise in the trees ?
i want to increase my ups back time ,i have added one 12v 68ah battery to my ups but it is not working ,is it possible to make adjustment so that new battery will work.
Explain the Machines ?
How many femtometers are in a nanometer?
What is meant by geo- magnetism ?
heat cannot pass from a cooler substance to a warmer substance without some other process being involved. This is an example of which law of thermodynamics?
What is Oxidation ?
When a porcelain dish or a glass material are falling on the floor, it breaks but on falling on sofa or sponge it will not break. Why?
why we use Transistor?
What is the second law of thermodynamics?