Explain what is the direction of null vector?
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Why does oil rise up the wick of the capillary ?
When a water pump falls to draw water, a bucket of water poured into it sets it working. Why ?
Explain what is the heterogenous?
Why is the earth not used as a return wire in a telephone system, while it is dine so in case of telegraph system.
What is Solar Energy?
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 are the characteristics of black body? : quantum physics
How is the bullet in a man?s body located ?
What are isotopes?
Explain interference?
What does the mev in mev photon mean?
How does a sailor find his longitude ?