like we take two components of kinetic energy i.e. translational and rotational . do we need to take two components of work done

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Solution

when body is in linear motion we define translational kinetic energy, we can calculate work done in translational motion.

But when body is in rotational motion we define rotational kinetic energy and we calculate work done in rotational motion.

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Q. Why do we need to separate different components of a mixture? Give two examples.

Q.  Why do we need to separate different components of a mixture? Give two examples.

Q. Match the column.

Separation process	The purpose for which we do the separation	What do we do with the separated components?
(1) Separate stones from rice.	(a) To separate two different but useful components.	(i) We throw away the solid component.
(2) Churning milk to obtain butter.	(b) To remove non-useful components.	(ii) We threw away the impurities.
(3) Separate tea leaves	(c) To remove impurities or harmful components.	(iii) We use both components.

We know that, for an ideal monoatomic gas, the total internal energy is a result of the translational kinetic energy only. For the oxygen molecule $O_{2}$ (assume it doesn't oscillate along the bond axis), which rotates as well as translates, choose the correct statement(s) from the following

(a) What is an ecosystem? List its two main components.

(b) We do not clean ponds or lakes, but an aquarium needs to be cleaned regularly. Explain.

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like we take two components of kinetic energy i.e. translational and rotational . do we need to take two components of work done

when body is in linear motion we define translational kinetic energy, we can calculate work done in translational motion. But when body is in rotational motion we define rotational kinetic energy and we calculate work done in rotational motion.

when body is in linear motion we define translational kinetic energy, we can calculate work done in translational motion.

But when body is in rotational motion we define rotational kinetic energy and we calculate work done in rotational motion.