For what the parabolic dishes are used?
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moment of inertia of an area is always least with respect to
Explain what instrument is used to measure volume?
Why does the pilot tilt the outer wing of the airplane inward while taking a turn?
What is optical medium?
Explain the Clouds and Rains ?
When a toy balloon is filled with air and then the air is allowed to go out, why dies the balloon whiz away ?
Which is heavier the land mass or the sea?
How we are getting light from electrical bulb.Please brief in detail.
Similar charges repel while dissimilar ones attract each other. How does two electrons attract each other during the formation of bond or why don't the protons in the nucleus repel?
What is the heterogenous?
Why does heat cause matter to expand?
Explain the Reflection ?