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Explain the Air Resistance
If you drop a feather and a cannonball at the same time from the same height, which will hit the ground first? The cannonball of course. Why does the feather take longer? For its mass it has much more surface area bouncing against air molecules than the cannonball. Air resistance slows it down. If we did the same experiment on the moon (no air) what would happen? They would hit at the same time. Can you think of some ways we use air resistance? Parachutes are one way, by dramatically increasing your area with the parachute, you can slow yourself down to a speed where you can land without injury.
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What occures to the normal shift when the thickness of the optical medium is decreased? Write down the expression for equivalent focal length of combination of two thin lenses d
The frames of reference which are themselves accelerating, rotating etc like that Newton's first law of motion becomes invalid in their case can be known as non-inertial frames of
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Briefly explain with principle, the construction and working of Nicol prism. Why the angle of incidence on Nicol prism would be around 14 o .
crude oil distillaiton
How is hardness of water sample estimated through EDTA titration? Discuss the mechanism of cationic polymerization
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