List three magnetic elements that determine the earth’s magnetic field at a point.

%IMG% (a) The diagram above illustrates a projectile motion. Identify each of the physical quantities labeled P, β, H and R. (b) Write an equation to show th...

(a) (i) State Newton’s Law of Universal Gravitation. (ii) Define gravitational field. (b) (i) Derive the equation relating the universal gravitational consta...

Explain each of the following terms as used in Electronics. (a) free electrons; (b) holes.

(a) (i) Explain latent heat. (ii) State two factors that affect the rate of evaporation of a liquid (b) Explain each of the following observations: (i) On a ...

State three observable phenomena in which waves behave like a particle.

A stone of mass 20g is released from a catapult whose rubber is stretched through 5cm. If the force constant of the rubber is 200Nm\(^{-1}\), calculate the s...

(a) State the principle of operation of fibre optics. (b) State two applications of fibre optics in medicine.

(a) Define diffusion (b) State two factors that affect the rate of diffusion