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A person breathes in somme volume of air by forced inspiration after having a forces expiration. This quantity of air taken in is

A person breathes in some volume of air by forced inspiration after having a forced expiration. This quantity of air taken in is

Nuclear forces are short range forces. Comment.

Air is a fluid and our bodies displace air. As a result of this, a buoyant force is acting on each one of us. What is the approximate density of your body?

Assertion : Impulsive force is large are acts for a short time. Reason : Finite change in momentum should be produced by the force.

Assertion: There is no apprecible change in the position of the body during the action of the impulsive force. Reason: In case of impulsive force the time of action of the force is very short.

Consider a vehicle going on a horizontal road towards east. Neglect any force by the air. The frictional forces on the vehicle by the road