Question
Name the different types of solutions. Give one example of each.
Example: Brass.
Example: Tincture of iodine.
Example: ethanoic acid.
Example: CO2 in water.
Example: Air.
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Briefly explain depletion of ozone layer and its effects.
How these acids affect our heritage monuments such as Taj Mahal?
A man wearing a bullet-proof vest stands still on roller skates. The total mass is 80kg. A bullet of mass 20 grams is fired at 400m/s. It is stopped by the vest and falls to the ground. What is then the velocity of the man?