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Reducing friction by an air stream
Cut out a disc of cardboard about 10 cm in diameter. With a red-hot pin, burn a hole by the centre. Saw a small cotton reel in half and glue the unique end of one half over the middle of the disc. Search a piece of bamboo or some other tube which just fits the hole in the reel. Push this into the neck of a small balloon, using cotton or a rubber band to protected the joint.
Friction by an air stream
describe the construction and working of a Nicol prism.discuss how you obtain a plane polarised beam with it?
Two particles of equal mass m go around a circle of radius R under the influence of their mutual gravitational attraction.the speed of each particle with respect to their center of
A body which gets its real configuration immediately and completely after the removal of deforming force from it, is called as perfectly elastic body. Phosphor bronze and quartz ar
Q . Figure shows across (b)What is the answer if there is no outer covering of the pipe? Answer Reflection, r max = 90 0 -i=90 0 -59 0 =310 Let, i max b
A toy train moves in a circle of 8 meters radius with a speed of 4 meters per second. What is the magnitude of the acceleration of the train? Ans: The magnitude of the acce
Given the following image, 1 2 1 1 2 0 0 1 5 1 0 1
what is electrostatic shielding
Path of a projectile The apparatus below can be used to indicate the independence of the horizontal and vertical velocities of a projectile. The projectile is a metal ball, and
He chemical effects of electricity
Work is equal to which of the following? a) The cross product of force and displacement. b) The product of force times time c) Force divided by time d) The dot
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