An object of weight `w_1`, is hung with a rope of weight `w_2` from ceilling. Calculate the amount of force exertied by ceiling on the rope.

A body of weight W_(1) is suspended from from the ceiling of a room by a rope of weight W_(2) . What is the force exerted by the ceiling on the rope?

A body of weight W_(1) is suspended from from the ceiling of a room by a rope of weight W_(2) . What is the force exerted by the ceiling on the body?

Calculate the BMI of a 20 year old adult man whose body weight is 60 kg and height is 1.7 metre. Calculate the required amount (in gm) of carbohydrate protein and fat if his energy requirement is 2400 kcal.

Two cells E_1 and E_2 have and emf of 5V and 9V and internal resistances of 0.3 Omega and 1.2 Omega respectively. Calculate the value of current following through the resistance of 3 Omega .

An element of atomic weight Z consists of two isotopes of mass number (Z-1) and (Z+2). Calculate the % of higher isotope.