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wire cover the surface is equal to its diameter. 160/0.8 = 200 rounds Length of wire = 2 ×22/7× 21 × 200 = 264 m
A car covers a distance of 200 km in 4 hours. What is its average speed ?
Which of the following is not a physical change?
A man inside an artificial satellite feels weightlessness because the force of attraction due to earth is –
Which of the following process is involved in the manufacturing of iron from iron-ore?
A gas is compressed at constant temperature. Which of the following will decrease?
How many parliamentary sessions does the Lok Sabha conduct annually?
Escape velocity is the minimum speed needed for an object to escape from the gravitational influence of a massive body. The escape velocity from Earth i...
At what temperature a body will not radiate any heat energy?
A body of mass 2 kg is moving in SHM with angular frequency 4 rad/s and amplitude 0.1 m. Max kinetic energy is:
A piece of wood is held under water. The up thrust on it will be:
