(a) Derive the dimension of surface tension.

(b) Name the instrument used to measure the force of gravity at a place

(a) State two uses of a polar satellite.

(b) What does the slope of a graph of tensile stress against tensile strain represent?

(a) State the S.I  base unit of the following quantities: (i) a stress, (ii) force constant (iii) Plank's constant

An object projected at an angle to a ground level has a time of flight 4 seconds to move through still air. Calculate the maximum height attained by the object.[g = 10ms\(^{-2}\)]

State three uses of ferromagnetic materials