Question
When milk is churned, the cream separates from it clue
to:Solution
The extraction of cream happens because of the work of centrifugal force which works outward. The separation of cream from milk is based on the fact that when liquids of different specific gravities revolve around the same centre at the same distance with the same angular velocity, a greater centrifugal force is exerted on the heavier liquid than on the lighter one. Milk can be regarded as two liquids of different specific gravities, the serum and the fat.
For a perfectly elastic collision, the coefficient of restitution (eee) is
With increase in impurities, the boiling point of water _________?
Which of the following is the hardest substance known?
Which of the following compounds form nitrites with nitrous acid?
Which vitamin is essential for RBC formation?
A cylindrical metal wire is reformed so that its length decreases by 20% with no change of volume. Its
resistance decreases by:
What happens to the gravitational force between two objects if the distance between them is doubled ?
What is the work done when a force of 20 N moves an object 5 meters?
Which of the following is present in the nucleus of an atom?
