Explain which way do twin screw props on a boat rotate when propelling the boat forward?
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Explain what is the translucent?
which one of the following does a tv remote control unit used to operate a tv ? a)light waves b) sound waves c) micro waves d) radio waves
What is the avarege speed of people fencing like at the olympic games. (sorry for the misspelled words)
What are the characteristics of a musical sound?
Explain the Velocity ?
What is the effect of using two converging lenses in one optical instrument?
How can you estimate the height of a bridge by dropping a stone from it ?
What is the difference between collector & emitter of transistor, even though material used for both same?
Why the objects which ate perfect reflectors or transparent, not so easily visible ?
Explain the cause of brownian motion?
Why dies the earth move round the sun, and the moon round the earth ?
if 100W and 200W bulbs are connected in series to a supply which bulb will glow brighter and why