In which medium the velocity of sound is large?
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Explain what is centrifugal force?
is it possible that the clock works differently in winter and in summer ?
a thing that will break easily?
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.
Why a small stone and a big stone reach at the same time when they are made to fall through the same heights ?
What is the difficulty in making fusion based nuclear reactors?
What is Virtual image ?
Explain the law of machines?
A coil consisting of 200 turns of wire has its ends connected to a circuit such that the total resistance of the coil and the circuit is 2.0 ohm. There is no source of e.m.f. in the circuit. Each turn of the coil is a square of side 18 cm, and a uniform magnetic field directed perpendicular to the plane of the coil is turned on. If the field changes linearly from 0 to 0.5 T in 0.8 s, what is the magnitude of the current in the coil while the field is changing?
Explain the Optical Medium ?
Why are summer hotter than winters ?
Which atomic model did erwin schrodinger create?