Explain the cause of brownian motion?
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Why dies the earth move round the sun, and the moon round the earth ?
What forces support an airplane in flight?
how the tube light glows even if the starter is removed
Why dies a cricket player lower his hands, while catching the ball ?
Do radio-waves go in straight line ?
Is a sewing needle magnetic or non magnetic?
What is the difference between isolation transformers and step up or step down transformer?
I just want to convert the voltage into current i.e. suppose I have 750V & 1A AC power then I want to convert it into 12V & 62A DC power only difficulty is that I don't want to use the tranceformer. Simply to say, I want to make the step-down without using tranceformer. Please, give me some ideas. And also I want the relation between Magnetic Induction & Weight of the body can be levitated. Or I can say, how much of magnetic induction requires to lift 500gms weight? I am heartily thankful to you.
Why a small stone and a big stone reach at the same time when they are made to fall through the same heights ?
The gravitational force between two blocks is F what would happen if a mass of both the blocks as well as distance between them is doubled?
What does hull speed mean?
When an object moves with constant velocity does its average velocity during any time interval differ from its instantaneous velocity at any instant?