If a liquid in a vessel is stirred and left to itself, the motion disappears after few minutes.

Describe an activity to show that a liquid when left exposed to air disappears after some time .

A tank consists of 50 litres of fresh water. Two litres of brine each litre containing 5 gms of dissolved salt are run into tank per minute, the mixture is kept uniform by stirring, and runs out at the rate of one litre per minute. If ‘m’ grams of salt are present in the tank after t minute, express ‘m’ in terms of t and find the amount of salt present after 10 minutes

One mL of an organic compound was dissolved in ethanol and a very small drop of dilute alkali was added to it and them a drop of phenolphalein was added. The red colour of the indicator was seen . The mixture. was then heated . The colour disappeared in a few minutes . The organic compound is most likely to be

Categorize the motion as periodic or oscillatory motion (i) Motion of Halley 's comet around the sun (ii) Motion osf the penedulum of a wall clock (iii) Motion of liquid n a U-tube when liquid is once compresed in one limb and then left to itself Hint : In oscallatory motion, there is to and fro motion about some mean position.

Someone's finger gets cut accidentally while chopping vegetables and starts bleeding. The bleeding stops after a few minutes. What are the steps that lead to stoppage of bleeding?