What are the steps to the scientific notation?
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Define Umbra?
Explain the difference between free electron theory and band theory of solids?
What is a positron?
is the below statement correct. the force of attraction of earth on a man, who is inside the artificial satellite is zero
How does a sound wave travel in air?
Tell me what path does an asteroid take?
Explain the Heat Engines ?
who described the theory of ionization?
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.
Explain the difference between the atomic theory and the kinetic theory?
Write Boyle’s law ?
What is dispension of light?