For what the parabolic dishes are used?
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When a person whirls a rock on the end of a string and maintains it in uniform circular motion, the force exerted on the rock is most accurately referred to as?
why we use Transistor?
If the moons orbit is inclined slightly relative to the earths orbit what effect does this have on eclipses?
Is it possible to convert a heat energy into magnetic energy?
Why does the moon shine, evening though it has not light of its own ?
What is soft water?
Explain the steps to the scientific notation?
Why is the apparent altitude of a star increased by reflection in atmosphere ?
Why dies the liquid not come out of the dropper, unless the rubber id Pressed ?
i didnot recieve my group1 hallticket
Explain the index of refraction of air?
a person carrying a bucket of water will leans towards his left why?