Why does the heavier guns are preferred over lighter ones?

Why does the heavier guns are preffered over lighter ones ?

Why are detergents preferred over soap?

Two stone of masses m and 2 m are whirled in horizontal circles, the heavier one in a radius r//2 and the lighter one in radius r . The tangential speed of lighter stone is n times that of the value of heavier stone when thy experience same centripetal forces. the value of n is

Why is the use of AC voltage preferred over DC voltage ? Give two reasons .

Why is COD preferred over BOD ?

Why is COD preferred over BOD ?

Why is alternating current preferred over direct current? List any three reasons.

Why instantaneous rate is preferred over average rate?