How is radiation emitted from the body?
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Explain the three particles that make up an atom?
a ball of mass 500g moving with a velocity of 10m/s collides with another ball of mass 250g.after the impact,the second ball moved off with a velocity of 8m/s calculate the final velocity of the first ball.
What is the index of refraction of air?
Why is the earth not used as a return wire in a telephone system, while it is dine so in case of telegraph system.
Name the metal that burns in oxygen with a dazzling white flame
Which is heavier the land mass or the sea?
What cycle most directly describes the working cycle of a heat engine operating as an ideal engine of maximum thermal efficiency?
What is the difference between diffraction and interference?
How do you calculate tensile strength?
What is an electron?
Why is it easier to swim in sea water than in the river water?
How does the snake move over the ground ?