hmmm by using of our saliva we can produce current?

1817

Explain optical telescopes?

963

All elements with an atomic number greater than what number are unstable?

1060

One man driving his car over dark night on hard concrete stone road in a forest. His bad faith that his car pings with long ore needles of concrete henceforth his all 4 tyres got punctured. How he might have tackled his problem? please guess answers & post

1835

Why it becomes bitterly cold as soon as the snow starts melting?

2401

If a dog rolled around on a carpet and gets statically and a flea jumps on it will the flea get electrocuted?

963

Which is the sound wave that is below the human hearing?

940

A truck travels 420 m. Each tire on the truck has a diameter of 42 cm. If one revolution of a tire is equal to 2? Times the radius of the tire (in meters), which of the following equations shows how many revolutions each tire makes as the distance is traveled?

887

How spectral lines show discrete energy levels in an atom. : quantum physics

888

Order the following categories of electromagnetic radiation from the lowest frequency to the highest? Fm radio, uhf tv, am radio, microwaves

975

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.

2215

Which properties of waves are independent of each other?

919

cyclotron

3660

Find the physical quantity in units from the equation: (Force*Distance)/(Velocity*Velocity)

1011

explian construction and working of various dye lasers

1954